Paccar BRADEN HP125B, Installation Maintenance And Service Manual

13

NOTE:

During typical winching operations, it is generally 

recommended to operate the vehicle engine at high idle 
RPM and use the winch control valve to control oil fl ow, 
and thus winch line speed as needed.

Position the vehicle such that the centerline of the winch 
drum is perpendicular to the winch load whenever pos-
sible. The wire rope fl eet angle must not exceed 1½°. If 
the fl eet angle exceeds 1½°, the wire rope will not spool 
correctly eventually resulting in damaged wire rope and 
prematurely worn winch components.

Either power out the wire rope using the hydraulic system, 
or disengage the drum clutch and pull the wire rope off the 
drum by hand (freespool). 

Securely attach the wire rope to the load in such a manner 
as to avoid damaging the load or rigging. Fully engage the 
drum clutch (see Drum Clutch Operation).

Ensure the band brake is released and engage the winch 
control lever. Operate the winch controls smoothly to avoid 
“jerking” the load and maintain good load control. 

Observe the winch operation carefully to make certain all 
ground personnel remain clear of the wire rope and load, 
and that the load does not shift, which may require reposi-
tioning the wire rope or the vehicle. 

Once the load is positioned properly, move the lever back 
to neutral to stop the winch. Secure the load as required. 
Pay out just enough wire rope to remove all tension on the 
cable drum. Disengage the drum clutch and disconnect 
the wire rope from the load.

Re-engage the drum clutch. Ensure the drum clutch is 
fully engaged. 

Wind the wire rope onto the cable drum while maintaining 
the minimum fl eet angle and suffi cient tension to allow the 
wire rope to spool properly, being careful to keep hands 
and clothing away from the cable drum and/or fairlead roll-
ers. 

The band brake on the clutch end of the cable drum 
is used to control drum overspin or “birdnesting” ONLY 
when operating in freespool mode with the drum clutch 
disengaged. DO NOT attempt to control any winch load 
using the band brake. Attempting to control or hold any 
load with the band brake may result in loss of load, 
property damage, injury or death.

When operating the winch in the pay-out direction, 
ALWAYS bring the load to a complete stop BEFORE 
attempting to shift the motor into high speed mode. 
“Shifting-on-the-fl y”, or attempting to shift while the load 
is still moving, will result in pressure intensifi cation be-
tween the brake valve and the hydraulic motor, which 
can damage the motor, brake valve, or other hydraulic 
components. Failure of these components may cause 
loss of load control which could lead to personal injury 
or death.