- Location
- CT
Hi All,
Long time lurker, I love the forum, its helped me make the decision to purchase a '99 Freightliner truck with a 55' Holan bucket. The truck has been well serviced and cared for by a large electrical contractor, it has a joystick and three extras hydraulically actuated jib, winch and bucket tilt.
I'm running into an issue with the controls for the three extras. All of the other controls work both from the joystick and lower controls. I have lower controls for the winch (which works) but not for the bucket tilt and jib actuation).
Since its a Holan, obviously theres limited support or info available but I'm hoping someone here has advice where to look.
The truck has one large PTO Muncie pump, no other aux pumps and no electronics. The upper Husco control valve 6480-142-2 (joystick) has a hose running off of it to the 3 spool mini valve (6060-59-201) which controls the winch and jib.
Theres a line coming out of the unused 3rd spool connecting to a block(?) and going to the bucket tilt spool.
Since the winch works from the lower controls but not the upper I assume theres an issue with not getting pressure from the main control valve into the 3 spool mini. When I operate any of these three controls I can feel a slight pulsing in the hydraulic line connected to each unit, but not enough to work anything. Does that make sense? Any suggestions on what to start with?
Thank you in advance!
Long time lurker, I love the forum, its helped me make the decision to purchase a '99 Freightliner truck with a 55' Holan bucket. The truck has been well serviced and cared for by a large electrical contractor, it has a joystick and three extras hydraulically actuated jib, winch and bucket tilt.
I'm running into an issue with the controls for the three extras. All of the other controls work both from the joystick and lower controls. I have lower controls for the winch (which works) but not for the bucket tilt and jib actuation).
Since its a Holan, obviously theres limited support or info available but I'm hoping someone here has advice where to look.
The truck has one large PTO Muncie pump, no other aux pumps and no electronics. The upper Husco control valve 6480-142-2 (joystick) has a hose running off of it to the 3 spool mini valve (6060-59-201) which controls the winch and jib.
Theres a line coming out of the unused 3rd spool connecting to a block(?) and going to the bucket tilt spool.
Since the winch works from the lower controls but not the upper I assume theres an issue with not getting pressure from the main control valve into the 3 spool mini. When I operate any of these three controls I can feel a slight pulsing in the hydraulic line connected to each unit, but not enough to work anything. Does that make sense? Any suggestions on what to start with?
Thank you in advance!
Attachments
Last edited:
