Guessing at picks
- Thread starter KevinS
- Start date
- Location
- Cleveland,oh
[ QUOTE ]
Good points but all we use are the nylon eye to eye slings
[/ QUOTE ]
get some shorter slings or use spider legs.10 foot slings aren't always going to work.
Good points but all we use are the nylon eye to eye slings
[/ QUOTE ]
get some shorter slings or use spider legs.10 foot slings aren't always going to work.
BigWood
Participating member
- Location
- Toronto, Canada
[ QUOTE ]
if your picks are flipping, then your slings need to go higher, you could use smaller(shorter) slings higher in the branches and longer slings lower on the pick if you're worried about breaking attachment points. you can use multiple rated slings, but any sling(spider legs) that have a knot in them are totally illegal here in Ontario.
[/ QUOTE ]
So is riding the hoist line but you do plenty of that. It's interpretation. What would you say if I told you that after a show and tell with a blue lid, he ok'd my crane bag full of amsteel spiders because my poly round sling and joker hook were carrying the primary load and the spiders equated to tag lines for control?
if your picks are flipping, then your slings need to go higher, you could use smaller(shorter) slings higher in the branches and longer slings lower on the pick if you're worried about breaking attachment points. you can use multiple rated slings, but any sling(spider legs) that have a knot in them are totally illegal here in Ontario.
[/ QUOTE ]
So is riding the hoist line but you do plenty of that. It's interpretation. What would you say if I told you that after a show and tell with a blue lid, he ok'd my crane bag full of amsteel spiders because my poly round sling and joker hook were carrying the primary load and the spiders equated to tag lines for control?
- Location
- Cleveland,oh
[ QUOTE ]
[ QUOTE ]
if your picks are flipping, then your slings need to go higher, you could use smaller(shorter) slings higher in the branches and longer slings lower on the pick if you're worried about breaking attachment points. you can use multiple rated slings, but any sling(spider legs) that have a knot in them are totally illegal here in Ontario.
[/ QUOTE ]
So is riding the hoist line but you do plenty of that. It's interpretation. What would you say if I told you that after a show and tell with a blue lid, he ok'd my crane bag full of amsteel spiders because my poly round sling and joker hook were carrying the primary load and the spiders equated to tag lines for control?
[/ QUOTE ]
sure whatever you say man
[ QUOTE ]
if your picks are flipping, then your slings need to go higher, you could use smaller(shorter) slings higher in the branches and longer slings lower on the pick if you're worried about breaking attachment points. you can use multiple rated slings, but any sling(spider legs) that have a knot in them are totally illegal here in Ontario.
[/ QUOTE ]
So is riding the hoist line but you do plenty of that. It's interpretation. What would you say if I told you that after a show and tell with a blue lid, he ok'd my crane bag full of amsteel spiders because my poly round sling and joker hook were carrying the primary load and the spiders equated to tag lines for control?
[/ QUOTE ]
sure whatever you say man
- Location
- Cleveland,oh
[ QUOTE ]
What do you use as a main line? Can you prussic to a flat nylon sling and have it hold?
[/ QUOTE ]
you wouldn't need a prusik.you use legs with an eye spliced in the end and just put them on the hook,or on a shackle on the hook.do some research here on the buzz about spider legs to get more familiar with the technique.
What do you use as a main line? Can you prussic to a flat nylon sling and have it hold?
[/ QUOTE ]
you wouldn't need a prusik.you use legs with an eye spliced in the end and just put them on the hook,or on a shackle on the hook.do some research here on the buzz about spider legs to get more familiar with the technique.
BigWood
Participating member
- Location
- Toronto, Canada
stein crane bag video.http://m.youtube.com/watch?v=GPdKmVuVR-4 Effectively, any rated sling, I prefer a poly round sling (tufflex), is your primary lift point on the hook. Your spiders live in bag till you need them. As you're only using them to control pitch and roll they're only control lines.
- Location
- Cleveland,oh
[ QUOTE ]
Mark Sauls has a good idea started does anyone have any thoughts or perimeters that would guide a study like that? Any mathematic geniuses welcome or any ideas.
[/ QUOTE ]
I would say that's way over thinking it.
Mark Sauls has a good idea started does anyone have any thoughts or perimeters that would guide a study like that? Any mathematic geniuses welcome or any ideas.
[/ QUOTE ]
I would say that's way over thinking it.
I ran a 17 ton for about 10 years that did not have lmi...only hcas. I did have to bypass the anti two block due to the wire constantly being pulled out or grounding itself to the boom and shutting down half the functions. Trying to work with it doing treework created more of safety hazard than bypassing it....imo. also; with all the talk of knowing weights and using an lmi system, it seems to me that in my lmi manual it clearly states that the lmi system should not be used as the primary method of determining weights that can be/have been hoisted. But i do love lmi. The system is only as good as the calibration. Ask courierguy.
- Location
- Cleveland,oh
[ QUOTE ]
I ran a 17 ton for about 10 years that did not have lmi...only hcas. I did have to bypass the anti two block due to the wire constantly being pulled out or grounding itself to the boom and shutting down half the functions. Trying to work with it doing treework created more of safety hazard than bypassing it....imo. also; with all the talk of knowing weights and using an lmi system, it seems to me that in my lmi manual it clearly states that the lmi system should not be used as the primary method of determining weights that can be/have been hoisted. But i do love lmi. The system is only as good as the calibration. Ask courierguy.
[/ QUOTE ]
X2!!!
I ran a 17 ton for about 10 years that did not have lmi...only hcas. I did have to bypass the anti two block due to the wire constantly being pulled out or grounding itself to the boom and shutting down half the functions. Trying to work with it doing treework created more of safety hazard than bypassing it....imo. also; with all the talk of knowing weights and using an lmi system, it seems to me that in my lmi manual it clearly states that the lmi system should not be used as the primary method of determining weights that can be/have been hoisted. But i do love lmi. The system is only as good as the calibration. Ask courierguy.
[/ QUOTE ]
X2!!!
Mangoes
Participating member
- Location
- Greater Toronto Area
[ QUOTE ]
but any sling(spider legs) that have a knot in them are totally illegal here in Ontario.
[/ QUOTE ]
http://www.prepperinfo.us/pdf/the%20ashley%20book%20of%20knots.pdf
Reference page 290 (knot 1673), page 294 (knot 1694), page 311 (knot 1859)- by such interpretation a choker hitch is a "knot"
but any sling(spider legs) that have a knot in them are totally illegal here in Ontario.
[/ QUOTE ]
http://www.prepperinfo.us/pdf/the%20ashley%20book%20of%20knots.pdf
Reference page 290 (knot 1673), page 294 (knot 1694), page 311 (knot 1859)- by such interpretation a choker hitch is a "knot"
allmark
Participating member
Osha states that an LMI is not to be used to determine the load. That being stated.... that is for something you pick and set. Not practical in our world. I would advocate using it to gain experience and use the knowledge for future picks. Learn how to take pieces without breaking the LMI. I was with an operator from Meyer tree and he would tell me the weight before the pick...He was never more than 100#s off. Had he disabled the LMI before working he would not have gained the experience to be that accurate.
Mangoes
Participating member
- Location
- Greater Toronto Area
[ QUOTE ]
Straight from the little green book:
R.153.(2)(c)the crane,(vi) is equipped with an automatic limit switch that prevents the platform and load from reaching beyond the highest permissible position specified by the crane manufacturer O.Reg.631/94, s. 4; O.Reg. 527/00, s.5.
[/ QUOTE ]
Straight from the little green book - yes - yet totally out of context. Section 153 refers to hoisting a worker platform. The entire section of the Act is listed below (Section 153 underlined). Aside from Section 153 an operator is not regulated to employ an LMI if charts, boom length and boom angle indicator are visible, functional and clearly visible.
Strangely the Act doesnt even discuss the ATB function the wire provides.
Additionally a lot of faith is entrusted to the LMI with some operators unaware of the accuracy rating, which as I recall is +/-1%, notwithstanding that the human computer that calibrated the LMI did so accurately.
Cranes, Hoisting and Rigging
150. (1) Subject to subsection (2), no worker shall operate a crane or similar hoisting device unless the worker holds a certificate of qualification issued under the Ontario College of Trades and Apprenticeship Act, 2009, that is not suspended, or the worker is an apprentice and is working pursuant to a training agreement registered under that Act, that is not suspended, in the trade of,
(a) hoisting engineer — mobile crane operator 1, if the worker is operating a crane or similar hoisting device capable of raising, lowering or moving any material that weighs more than 30,000 pounds;
(b) hoisting engineer — mobile crane operator 1 or hoisting engineer — mobile crane operator 2, if the worker is operating a crane or similar hoisting device capable of raising, lowering or moving only material that weighs more than 16,000 pounds but no more than 30,000 pounds; or
(c) hoisting engineer — tower crane operator, if the worker is operating a tower crane. O. Reg. 88/13, s. 1.
(1.1) Subsection (1) does not apply when a worker is using excavation equipment to place pipes into a trench. O. Reg. 631/94, s. 3.
(2) No worker shall operate a crane or similar hoisting device, other than one described in subsection (1), unless,
(a) the worker has written proof of training indicating that he or she is trained in the safe operation of the crane or similar hoisting device; or
(b) the worker is being instructed in the operation of the crane or similar hoisting device and is accompanied by a person who meets the requirements of clause (a). O. Reg. 213/91, s. 150 (2).
(3) A worker shall carry his or her proof of training while operating a crane or similar hoisting device. O. Reg. 213/91, s. 150 (3).
151. (1) No crane or similar hoisting device shall be subjected to a load greater than its rated load-carrying capacity. O. Reg. 213/91, s. 151 (1).
(2) The manufacturer of a crane or similar hoisting device or a professional engineer shall determine its rated load-carrying capacity in accordance with,
(a) for a mobile crane, Canadian Standards Association Standard Z150-1974 Safety Code for Mobile Cranes; and
(b) for a tower crane, Canadian Standards Association Standard Z248-1976 Code for Tower Cranes. O. Reg. 213/91, s. 151 (2).
(3) Every crane or similar hoisting device shall have affixed to it a load rating plate,
(a) that the operator can read while at the controls; and
(b) that contains enough information for the operator to determine the load that can be lifted for each configuration of the crane. O. Reg. 213/91, s. 151 (3).
(4) A luffing boom crane, other than a tower crane, shall have affixed to it a boom angle indicator that the operator can read while at the controls. O. Reg. 213/91, s. 151 (4).
152. (1) The owner of a crane or similar hoisting device shall keep a permanent record of all inspections of, tests of, repairs to, modifications to and maintenance of the crane or similar hoisting device. O. Reg. 213/91, s. 152 (1).
(2) The owner of a crane or similar hoisting device shall prepare a log book for it for use at a project that shall include the record referred to in subsection (1) covering the period that is the greater of,
(a) the immediately preceding twelve months; and
(b) the period the crane or similar hoisting device is on the project. O. Reg. 213/91, s. 152 (2).
(3) The log book shall be kept with the crane or similar hoisting device. O. Reg. 213/91, s. 152 (3).
(4) The owner of a crane or similar hoisting device shall retain and make available to the constructor on request copies of all log books and records for the crane or similar hoisting device. O. Reg. 213/91, s. 152 (4).
<u>
153. (1) No worker shall use as a workplace a platform, bucket, basket, load, hook, sling or similar device that is capable of moving and is supported by a cable attached to the boom of a crane or similar hoisting device, except in accordance with this section. O. Reg. 631/94, s. 4.
(2) A crane may be used to raise, support or lower a worker only if,
(a) conventional access equipment cannot be used;
(b) the platform that the worker is on,
(i) is designed by a professional engineer in accordance with good engineering practice,
(ii) is constructed in accordance with the design drawings,
(iii) is equipped with more than one means of suspension or support,
(iv) is equipped with anchor points for the attachment of the worker’s fall arrest systems,
(v) is equipped with a guardrail in accordance with section 26.3,
(vi) is suspended from, or supported by, a direct attachment to the boom of the crane,
(vii) is designed, constructed and maintained so that the failure of one means of support or suspension will not cause the collapse of all or part of the platform, and
(viii) has its maximum rated load capacity legibly and permanently marked in a conspicuous place on it; and
(c) the crane,
(i) is equipped with fail-safe mechanisms that will prevent the boom and the suspended platform from free falling in the event of a power source or system failure or the inadvertent release of any operating controls,
(ii) is not used to hoist material while the platform is being used to support a worker,
(iii) is not loaded in excess of 25 per cent of its maximum rated load,
(iv) has a revised load rating chart prepared by a professional engineer in accordance with good engineering practice and affixed in a conspicuous place on the crane,
(v) has, on its hoist line, hooks equipped with self-closing safety catches at the point where the platform is suspended, and
(vi) is equipped with an automatic limit switch that prevents the platform and load from reaching beyond the highest permissible position specified by the crane manufacturer. O. Reg. 631/94, s. 4; O. Reg. 527/00, s. 5.
(3) Any modifications or repairs to the boom of the crane shall be made in accordance with the instructions of the crane manufacturer or a professional engineer. O. Reg. 631/94, s. 4.
(4) Every worker on the platform shall wear a full body harness connected independently to anchor points on the platform and used in conjunction with a lanyard fitted with a shock absorber. O. Reg. 631/94, s. 4.
(5) The design drawings of the platform shall,
(a) set out the size and specifications of all components of the platform, including the type and grade of materials used for it;
(b) state the maximum live load of the platform;
(c) specify the model and type of crane to be used in conjunction with the platform; and
(d) include a statement that, in the opinion of the professional engineer who designed the platform, the design meets the requirements of clauses (a), (b) and (c).
(e) Revoked: O. Reg. 85/04, s. 16.
O. Reg. 631/94, s. 4; O. Reg. 85/04, s. 16.
(6) Before the platform is used, a competent worker shall inspect it and verify in writing that it has been constructed in accordance with the design drawings. O. Reg. 631/94, s. 4.
(7) No person shall use the platform until the verification required under subsection (6) is given. O. Reg. 631/94, s. 4.
(8) A professional engineer or a competent worker designated by the professional engineer shall inspect the crane to ensure its structural integrity using non-destructive testing methods approved by the Canadian General Standards Board before the crane is used to lift persons and then at least once every 12 months after that. O. Reg. 631/94, s. 4.
(9) A competent worker shall visually inspect the crane’s structural elements and the rigging equipment for defects before each use of the crane. O. Reg. 631/94, s. 4.
(10) The employer shall ensure that an adequate means of communication between the worker on the platform and the crane operator is established, maintained and used. O. Reg. 631/94, s. 4.
(11) Before beginning any hoisting operation under this section, the constructor shall notify by telephone an inspector in the office of the Ministry of Labour nearest to the project. O. Reg. 631/94, s. 4.
(12) The employer shall ensure that every worker involved with the hoisting operation receives adequate instructions about the requirements, restrictions and hazards associated with the hoisting operation. O. Reg. 631/94, s. 4.
(13) The employer shall develop adequate emergency rescue procedures and communicate these in writing to all workers involved with the hoisting operation. O. Reg. 631/94, s. 4.
(14) The constructor shall keep all design drawings, test reports, written statements and certification documents required under this section with the crane at all times during the hoisting operation. O. Reg. 631/94, s. 4.
(15) On request, the constructor shall provide an inspector with copies of any document described in subsection (14). O. Reg. 631/94, s. 4.</u>
154. (1) A crane or similar hoisting device shall be set up, assembled, extended and dismantled only by a competent worker acting in accordance with the written instructions of the manufacturer and in such a manner as to not endanger any person or property. O. Reg. 213/91, s. 154 (1).
(2) No crane or similar hoisting device shall include sections that are not designed for it or that are damaged. O. Reg. 213/91, s. 154 (2).
(3) No crane or similar hoisting device shall include nuts, bolts, pins or fastenings that are not the size and quality specified by the manufacturer. O. Reg. 213/91, s. 154 (3).
155. Unless otherwise specified by its manufacturer, a crane or similar hoisting device,
(a) shall be equipped with a device to indicate whether its turntable is level; and
(b) shall be operated with its turntable level. O. Reg. 213/91, s. 155.
156. An outrigger or stabilizing device used on a crane or similar hoisting device,
(a) shall be extended to meet load capacity chart requirements; and
(b) shall rest on blocking able to support the crane or similar hoisting device and its maximum load without failure or without deformation or settlement which affects its stability. O. Reg. 213/91, s. 156.
Straight from the little green book:
R.153.(2)(c)the crane,(vi) is equipped with an automatic limit switch that prevents the platform and load from reaching beyond the highest permissible position specified by the crane manufacturer O.Reg.631/94, s. 4; O.Reg. 527/00, s.5.
[/ QUOTE ]
Straight from the little green book - yes - yet totally out of context. Section 153 refers to hoisting a worker platform. The entire section of the Act is listed below (Section 153 underlined). Aside from Section 153 an operator is not regulated to employ an LMI if charts, boom length and boom angle indicator are visible, functional and clearly visible.
Strangely the Act doesnt even discuss the ATB function the wire provides.
Additionally a lot of faith is entrusted to the LMI with some operators unaware of the accuracy rating, which as I recall is +/-1%, notwithstanding that the human computer that calibrated the LMI did so accurately.
Cranes, Hoisting and Rigging
150. (1) Subject to subsection (2), no worker shall operate a crane or similar hoisting device unless the worker holds a certificate of qualification issued under the Ontario College of Trades and Apprenticeship Act, 2009, that is not suspended, or the worker is an apprentice and is working pursuant to a training agreement registered under that Act, that is not suspended, in the trade of,
(a) hoisting engineer — mobile crane operator 1, if the worker is operating a crane or similar hoisting device capable of raising, lowering or moving any material that weighs more than 30,000 pounds;
(b) hoisting engineer — mobile crane operator 1 or hoisting engineer — mobile crane operator 2, if the worker is operating a crane or similar hoisting device capable of raising, lowering or moving only material that weighs more than 16,000 pounds but no more than 30,000 pounds; or
(c) hoisting engineer — tower crane operator, if the worker is operating a tower crane. O. Reg. 88/13, s. 1.
(1.1) Subsection (1) does not apply when a worker is using excavation equipment to place pipes into a trench. O. Reg. 631/94, s. 3.
(2) No worker shall operate a crane or similar hoisting device, other than one described in subsection (1), unless,
(a) the worker has written proof of training indicating that he or she is trained in the safe operation of the crane or similar hoisting device; or
(b) the worker is being instructed in the operation of the crane or similar hoisting device and is accompanied by a person who meets the requirements of clause (a). O. Reg. 213/91, s. 150 (2).
(3) A worker shall carry his or her proof of training while operating a crane or similar hoisting device. O. Reg. 213/91, s. 150 (3).
151. (1) No crane or similar hoisting device shall be subjected to a load greater than its rated load-carrying capacity. O. Reg. 213/91, s. 151 (1).
(2) The manufacturer of a crane or similar hoisting device or a professional engineer shall determine its rated load-carrying capacity in accordance with,
(a) for a mobile crane, Canadian Standards Association Standard Z150-1974 Safety Code for Mobile Cranes; and
(b) for a tower crane, Canadian Standards Association Standard Z248-1976 Code for Tower Cranes. O. Reg. 213/91, s. 151 (2).
(3) Every crane or similar hoisting device shall have affixed to it a load rating plate,
(a) that the operator can read while at the controls; and
(b) that contains enough information for the operator to determine the load that can be lifted for each configuration of the crane. O. Reg. 213/91, s. 151 (3).
(4) A luffing boom crane, other than a tower crane, shall have affixed to it a boom angle indicator that the operator can read while at the controls. O. Reg. 213/91, s. 151 (4).
152. (1) The owner of a crane or similar hoisting device shall keep a permanent record of all inspections of, tests of, repairs to, modifications to and maintenance of the crane or similar hoisting device. O. Reg. 213/91, s. 152 (1).
(2) The owner of a crane or similar hoisting device shall prepare a log book for it for use at a project that shall include the record referred to in subsection (1) covering the period that is the greater of,
(a) the immediately preceding twelve months; and
(b) the period the crane or similar hoisting device is on the project. O. Reg. 213/91, s. 152 (2).
(3) The log book shall be kept with the crane or similar hoisting device. O. Reg. 213/91, s. 152 (3).
(4) The owner of a crane or similar hoisting device shall retain and make available to the constructor on request copies of all log books and records for the crane or similar hoisting device. O. Reg. 213/91, s. 152 (4).
<u>
153. (1) No worker shall use as a workplace a platform, bucket, basket, load, hook, sling or similar device that is capable of moving and is supported by a cable attached to the boom of a crane or similar hoisting device, except in accordance with this section. O. Reg. 631/94, s. 4.
(2) A crane may be used to raise, support or lower a worker only if,
(a) conventional access equipment cannot be used;
(b) the platform that the worker is on,
(i) is designed by a professional engineer in accordance with good engineering practice,
(ii) is constructed in accordance with the design drawings,
(iii) is equipped with more than one means of suspension or support,
(iv) is equipped with anchor points for the attachment of the worker’s fall arrest systems,
(v) is equipped with a guardrail in accordance with section 26.3,
(vi) is suspended from, or supported by, a direct attachment to the boom of the crane,
(vii) is designed, constructed and maintained so that the failure of one means of support or suspension will not cause the collapse of all or part of the platform, and
(viii) has its maximum rated load capacity legibly and permanently marked in a conspicuous place on it; and
(c) the crane,
(i) is equipped with fail-safe mechanisms that will prevent the boom and the suspended platform from free falling in the event of a power source or system failure or the inadvertent release of any operating controls,
(ii) is not used to hoist material while the platform is being used to support a worker,
(iii) is not loaded in excess of 25 per cent of its maximum rated load,
(iv) has a revised load rating chart prepared by a professional engineer in accordance with good engineering practice and affixed in a conspicuous place on the crane,
(v) has, on its hoist line, hooks equipped with self-closing safety catches at the point where the platform is suspended, and
(vi) is equipped with an automatic limit switch that prevents the platform and load from reaching beyond the highest permissible position specified by the crane manufacturer. O. Reg. 631/94, s. 4; O. Reg. 527/00, s. 5.
(3) Any modifications or repairs to the boom of the crane shall be made in accordance with the instructions of the crane manufacturer or a professional engineer. O. Reg. 631/94, s. 4.
(4) Every worker on the platform shall wear a full body harness connected independently to anchor points on the platform and used in conjunction with a lanyard fitted with a shock absorber. O. Reg. 631/94, s. 4.
(5) The design drawings of the platform shall,
(a) set out the size and specifications of all components of the platform, including the type and grade of materials used for it;
(b) state the maximum live load of the platform;
(c) specify the model and type of crane to be used in conjunction with the platform; and
(d) include a statement that, in the opinion of the professional engineer who designed the platform, the design meets the requirements of clauses (a), (b) and (c).
(e) Revoked: O. Reg. 85/04, s. 16.
O. Reg. 631/94, s. 4; O. Reg. 85/04, s. 16.
(6) Before the platform is used, a competent worker shall inspect it and verify in writing that it has been constructed in accordance with the design drawings. O. Reg. 631/94, s. 4.
(7) No person shall use the platform until the verification required under subsection (6) is given. O. Reg. 631/94, s. 4.
(8) A professional engineer or a competent worker designated by the professional engineer shall inspect the crane to ensure its structural integrity using non-destructive testing methods approved by the Canadian General Standards Board before the crane is used to lift persons and then at least once every 12 months after that. O. Reg. 631/94, s. 4.
(9) A competent worker shall visually inspect the crane’s structural elements and the rigging equipment for defects before each use of the crane. O. Reg. 631/94, s. 4.
(10) The employer shall ensure that an adequate means of communication between the worker on the platform and the crane operator is established, maintained and used. O. Reg. 631/94, s. 4.
(11) Before beginning any hoisting operation under this section, the constructor shall notify by telephone an inspector in the office of the Ministry of Labour nearest to the project. O. Reg. 631/94, s. 4.
(12) The employer shall ensure that every worker involved with the hoisting operation receives adequate instructions about the requirements, restrictions and hazards associated with the hoisting operation. O. Reg. 631/94, s. 4.
(13) The employer shall develop adequate emergency rescue procedures and communicate these in writing to all workers involved with the hoisting operation. O. Reg. 631/94, s. 4.
(14) The constructor shall keep all design drawings, test reports, written statements and certification documents required under this section with the crane at all times during the hoisting operation. O. Reg. 631/94, s. 4.
(15) On request, the constructor shall provide an inspector with copies of any document described in subsection (14). O. Reg. 631/94, s. 4.</u>
154. (1) A crane or similar hoisting device shall be set up, assembled, extended and dismantled only by a competent worker acting in accordance with the written instructions of the manufacturer and in such a manner as to not endanger any person or property. O. Reg. 213/91, s. 154 (1).
(2) No crane or similar hoisting device shall include sections that are not designed for it or that are damaged. O. Reg. 213/91, s. 154 (2).
(3) No crane or similar hoisting device shall include nuts, bolts, pins or fastenings that are not the size and quality specified by the manufacturer. O. Reg. 213/91, s. 154 (3).
155. Unless otherwise specified by its manufacturer, a crane or similar hoisting device,
(a) shall be equipped with a device to indicate whether its turntable is level; and
(b) shall be operated with its turntable level. O. Reg. 213/91, s. 155.
156. An outrigger or stabilizing device used on a crane or similar hoisting device,
(a) shall be extended to meet load capacity chart requirements; and
(b) shall rest on blocking able to support the crane or similar hoisting device and its maximum load without failure or without deformation or settlement which affects its stability. O. Reg. 213/91, s. 156.
classictruckman
Participating member
- Location
- Ottawa Valley, Ontario, Canada
[ QUOTE ]
[ QUOTE ]
but any sling(spider legs) that have a knot in them are totally illegal here in Ontario.
[/ QUOTE ]
http://www.prepperinfo.us/pdf/the%20ashley%20book%20of%20knots.pdf
Reference page 290 (knot 1673), page 294 (knot 1694), page 311 (knot 1859)- by such interpretation a choker hitch is a "knot"
[/ QUOTE ]
Yes but to be a rated sling it must be stamped or marked by the manufaturer its SWL, and 100% of the rated slings I've seen have been rated for a choker hitch, not a choker knot.
[ QUOTE ]
but any sling(spider legs) that have a knot in them are totally illegal here in Ontario.
[/ QUOTE ]
http://www.prepperinfo.us/pdf/the%20ashley%20book%20of%20knots.pdf
Reference page 290 (knot 1673), page 294 (knot 1694), page 311 (knot 1859)- by such interpretation a choker hitch is a "knot"
[/ QUOTE ]
Yes but to be a rated sling it must be stamped or marked by the manufaturer its SWL, and 100% of the rated slings I've seen have been rated for a choker hitch, not a choker knot.
classictruckman
Participating member
- Location
- Ottawa Valley, Ontario, Canada
[ QUOTE ]
[ QUOTE ]
Straight from the little green book:
R.153.(2)(c)the crane,(vi) is equipped with an automatic limit switch that prevents the platform and load from reaching beyond the highest permissible position specified by the crane manufacturer O.Reg.631/94, s. 4; O.Reg. 527/00, s.5.
[/ QUOTE ]
Straight from the little green book - yes - yet totally out of context. Section 153 refers to hoisting a worker platform. The entire section of the Act is listed below (Section 153 underlined). Aside from Section 153 an operator is not regulated to employ an LMI if charts, boom length and boom angle indicator are visible, functional and clearly visible.
Strangely the Act doesnt even discuss the ATB function the wire provides.
[/ QUOTE ]
not out of context if the climber is being hoisted into the tree, also although I cannot find it in the little green book I know there is a law written somewhere, maybe not a Canadian law that every crane built after 1992 capable of lifting more than 3 ton(I think) must be equipped with an ATB and some form of LMI and any crane which is having maintenance performed on it must have an ATB retrofitted.
[ QUOTE ]
Straight from the little green book:
R.153.(2)(c)the crane,(vi) is equipped with an automatic limit switch that prevents the platform and load from reaching beyond the highest permissible position specified by the crane manufacturer O.Reg.631/94, s. 4; O.Reg. 527/00, s.5.
[/ QUOTE ]
Straight from the little green book - yes - yet totally out of context. Section 153 refers to hoisting a worker platform. The entire section of the Act is listed below (Section 153 underlined). Aside from Section 153 an operator is not regulated to employ an LMI if charts, boom length and boom angle indicator are visible, functional and clearly visible.
Strangely the Act doesnt even discuss the ATB function the wire provides.
[/ QUOTE ]
not out of context if the climber is being hoisted into the tree, also although I cannot find it in the little green book I know there is a law written somewhere, maybe not a Canadian law that every crane built after 1992 capable of lifting more than 3 ton(I think) must be equipped with an ATB and some form of LMI and any crane which is having maintenance performed on it must have an ATB retrofitted.
classictruckman
Participating member
- Location
- Ottawa Valley, Ontario, Canada
From the ASME 30.9-2010:
[image]http://www.treebuzz.com/forum/images/upload/384835-ASME.bmp[/image]
This is specifically from the synthetic rope sling section.
[image]http://www.treebuzz.com/forum/images/upload/384835-ASME.bmp[/image]
This is specifically from the synthetic rope sling section.
classictruckman
Participating member
- Location
- Ottawa Valley, Ontario, Canada
Asme b30.5-2004:
5-1.9.9 Operational Aids
The crane and/or device manufacturer's instructions
shall describe the purpose of the device. The crane and/
or device manufacturer shall provide recommendations
for continued operation or shutdown of the crane if
operational aids are inoperative or malfunctioning.
Without such recommendations and any prohibitions
from the manufacturer against further operation, the
requirements of para. 5-3.2.1.2(b) shall apply.
5-1.9.9.1 Two-blocking Features
(a) Telescopic boom cranes shall be equipped with an
anti-two-block device or a two-block damage prevention
feature for all points of two-blocking (i.e., jibs, extensions;
see Section N, New and Existing Installations).
(b) Lattice boom cranes shall be equipped with an
anti-two-block device or a two-block warning feature
that functions for all points of two-blocking (see Section
IV, New and Existing Installations).
5-1.9.9.2 Load Indicators, Rated Capacity Indicators,
and Rated Capacity Limiters. All cranes with a maximum
rated load capacity of 3 tons or more shall have a load
indicator, rated capacity indicator, or rated capacity
(load) limiter (see Section N, New and Exisiting Installations).
5-3.2.1.2 Operational Aids
(04) (a) In all cases, verified weights, measured radii, and
manufacturer's load/capacity chart capacities and
instructions shall take precedence over operational aids
when handling a load. If it is necessary to temporarily
override an operational aid to handle a rated capacity
load within the limits established by the manufacturer's
load capacity chart and instructions, the user shall comply
with paras. 5-3.2.1.1(a) through (c).
(b) When operational aids ate inoperative or malfunc- (04)
tioning, the crane and/ or device manufacturer's recommendations
for continued operation or shutdown of the
crane shall be followed until the problems are corrected.
Without such recommendations and any prohibitions
from the manufacturer against further operation, the
following requirements shall apply:
(1) Recalibration or repair of the operational aid
shall be accomplished as soon as is reasonably possible,
as determined by a qualified person.
(2) When a load indicator, rated capacity indicator,
or rated capacity limiter is inoperative or malfunctioning,
the designated person responsible for supervising
the lifting operations shall establish procedures for
determining load weights and for conducting the lifts
in accordance with paras. 5-3.2.1.1(a) through (c).
(3) When a boom angle or radius indicator is inoperative
or malfunctioning, radii or boom angle shall be
determined by measurement.
(4) When an anti-two-block device, two-block
damage prevention device, or two-block warning device
is inoperative or malfunctioning, the designated person
responsible for supervising the lifting operations shall
establish procedures, such as assigning an additional
signal person, to furnish equivalent protection. This does
not apply when lifting personnel. Personnel shall not
be lifted when two-block devices are not functioning
properly.
(5) When a boom length indicator is inoperative or
malfunctioning, the designated person responsible for
supervising the lifting operations shall establish procedures
for conducting the lifts in accordance with paras.
5-3.2.2.1(a) through (c).
(6) When a level indicator is inoperative or malfunctioning,
other means shall be used to level the crane
within the level requirements specified by the manufacturer.
5-1.9.9 Operational Aids
The crane and/or device manufacturer's instructions
shall describe the purpose of the device. The crane and/
or device manufacturer shall provide recommendations
for continued operation or shutdown of the crane if
operational aids are inoperative or malfunctioning.
Without such recommendations and any prohibitions
from the manufacturer against further operation, the
requirements of para. 5-3.2.1.2(b) shall apply.
5-1.9.9.1 Two-blocking Features
(a) Telescopic boom cranes shall be equipped with an
anti-two-block device or a two-block damage prevention
feature for all points of two-blocking (i.e., jibs, extensions;
see Section N, New and Existing Installations).
(b) Lattice boom cranes shall be equipped with an
anti-two-block device or a two-block warning feature
that functions for all points of two-blocking (see Section
IV, New and Existing Installations).
5-1.9.9.2 Load Indicators, Rated Capacity Indicators,
and Rated Capacity Limiters. All cranes with a maximum
rated load capacity of 3 tons or more shall have a load
indicator, rated capacity indicator, or rated capacity
(load) limiter (see Section N, New and Exisiting Installations).
5-3.2.1.2 Operational Aids
(04) (a) In all cases, verified weights, measured radii, and
manufacturer's load/capacity chart capacities and
instructions shall take precedence over operational aids
when handling a load. If it is necessary to temporarily
override an operational aid to handle a rated capacity
load within the limits established by the manufacturer's
load capacity chart and instructions, the user shall comply
with paras. 5-3.2.1.1(a) through (c).
(b) When operational aids ate inoperative or malfunc- (04)
tioning, the crane and/ or device manufacturer's recommendations
for continued operation or shutdown of the
crane shall be followed until the problems are corrected.
Without such recommendations and any prohibitions
from the manufacturer against further operation, the
following requirements shall apply:
(1) Recalibration or repair of the operational aid
shall be accomplished as soon as is reasonably possible,
as determined by a qualified person.
(2) When a load indicator, rated capacity indicator,
or rated capacity limiter is inoperative or malfunctioning,
the designated person responsible for supervising
the lifting operations shall establish procedures for
determining load weights and for conducting the lifts
in accordance with paras. 5-3.2.1.1(a) through (c).
(3) When a boom angle or radius indicator is inoperative
or malfunctioning, radii or boom angle shall be
determined by measurement.
(4) When an anti-two-block device, two-block
damage prevention device, or two-block warning device
is inoperative or malfunctioning, the designated person
responsible for supervising the lifting operations shall
establish procedures, such as assigning an additional
signal person, to furnish equivalent protection. This does
not apply when lifting personnel. Personnel shall not
be lifted when two-block devices are not functioning
properly.
(5) When a boom length indicator is inoperative or
malfunctioning, the designated person responsible for
supervising the lifting operations shall establish procedures
for conducting the lifts in accordance with paras.
5-3.2.2.1(a) through (c).
(6) When a level indicator is inoperative or malfunctioning,
other means shall be used to level the crane
within the level requirements specified by the manufacturer.
BigWood
Participating member
- Location
- Toronto, Canada
James and mangoo don't have enough storm damage to clean up if they can type all that!
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