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INSTALLATION INSTRUCTIONS
The initial installation or mounting of a PULLMASTER planetary winch is critically important for proper operation and
performance. If the winch is mounted to an uneven surface, the centre line of the unit can be distorted to a point
where the winch will not operate in either direction. It is therefore very important that the following instructions are
observed when a PULLMASTER planetary winch is installed:
1) Make certain that the mounting platform is sufficiently strong in order to avoid deflection when a load is lifted.
2) Set the winch on the mounting platform and check for surface contact on all mounting pads of the winch.
3) If there is a space between the mounting surface and one of the mounting pads, the mounting surface is not
even and the space below the mounting pad must be shimmed. If this condition exists, proceed as follows:
a) Install mounting bolts snug tight on the three mounting pads which are in contact with the mounting
surface. For mounting bolt size and grade see INSTALLATION DIMENSIONS.
b) Measure the space underneath the fourth mounting pad with a feeler gauge and use shim stock of
equivalent thickness in the space between the mounting pad and the mounting surface.
c) Only after this procedure, should the fourth mounting bolt be installed. Tighten all four bolts as per BOLT
TORQUE CHART.
4) Fill the winch with lubricating oil. (See APPENDIX A for oil volume required).
5) Use recommended circuit components and hydraulic hoses.
6)
The circulation return line of the winch should be plumbed in such a manner that the brake housing remains full
of oil at all times. Connect the return line directly to reservoir. Do not connect to a common return line.
7) Before operating the winch with a load, verify adequate circulation flow through the circulation return line as
stated in TYPICAL HYDRAULIC CIRCUIT. Verify that pressure measured at the circulation supply port does
not exceed the permissible pressure stated in SPECIFICATIONS. Winches equipped with the internal
circulation option will supply circulation flow only when the winch is run in the lowering direction.
8) If, after new installation, the winch does not function properly, refer to the TROUBLESHOOTING section of
this manual.
FAILURE TO FOLLOW INSTALLATION INSTRUCTIONS WILL
RESULT IN PROPERTY DAMAGE, SEVERE INJURY OR DEATH.
271 REV.970407
DANGER
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