Service
3 - 2
Checks Before Operation
Check that the wire rope and hook are not worn or
damaged beyond serviceable condition. Check that the
periodic inspection and maintenance have been done
at the recommended operating hours. See Table 3-1,
Maintenance Schedule.
Checks During Operation
The Troubleshooting Charts in Section 2 can be used
by the operator to identify a problem with the winch
operation. A trained service person is needed for additional
troubleshooting and repair that requires disassembly of
parts of the winch.
FREESPOOL Drag Adjustment
(See Figure 3-2)
The preload on the bearings of the intermediate shaft
controls the resistance to rotation of the drum during
FREESPOOL
operation. The resistance to rotation is
correct when the drum can be rotated by hand, but will
not rotate more than one-half revolution after the hand
is removed.
An adjusting setscrew is located in the center of the cover
for the intermediate shaft. This screw can be tightened or
loosened to adjust the preload on the intermediate shaft.
The jam nut will maintain the
FREESPOOL
setting. This
adjustment is normally only necessary if the winch has
had an overhaul.
Hydraulic System Pressure Checks
The hydraulic oil and fi lter(s) should be maintained as
indicated in the dozer Service Manual. If any problems
are found, they should be corrected before operating the
winch.
Preparation
1. These tests should be performed with a bare drum (no
wire rope) since the drum will rotate during the tests.
Always wear gloves when handling wire
rope.
Dozer engine must be shut OFF before
disconnecting drum wire rope. Be careful
when you remove the wire rope from the
drum. The end of the wire rope can move
like a compressed spring, causing an
injury when the ferrule is released from
the drum.
2. Start the engine and place the winch in
LINE-OUT
to raise the oil temperature. Another way to elevate
the reservoir temperature is to hold the dozer blade
over relief. The oil temperature in the winch or dozer
reservoir must be at least 70°F (20°C).
3. Remove any dirt from the right side of the winch.
Remove access plate.
4. Stabilize engine speed at high free idle for all tests.
5. Leave test plugs securely installed unless testing
that port.
6. After completing all pressure checks and making
the necessary adjustments ensure that all plugs and
hoses are securely installed.
7. Install side covers and tighten capscrews.
1. Adjusting
Nut
2. Jam
Nut
Figure 3-2 Freespool Adjustments
Summary of Contents for H5C Series
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Page 48: ...General 1 40 Notes...
Page 59: ...Troubleshooting 2 6 Notes...
Page 77: ...Service 3 18 Notes...
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