Section 4
4 - 1
Repairs
General
This section includes the removal and disassembly of
all major assemblies, inspection of components, and
reassembly and installation. The wear points detailed in
Figure 4-7 should be inspected at the time of disassembly
so that worn parts may be ordered and replaced prior to
reassembly. If the winch is to be completely overhauled,
perform the removal, disassembly, inspection and
reassembly procedures in the sequence of the following
paragraphs.
NOTICE
A l w a y s u s e t h e t r o u b l e s h o o t i n g
procedures given in Section 2 to locate
a malfunction before performing a major
overhaul of the unit. Make all checks in a
systematic manner. Haphazard checking
wastes time and can cause further
damage.
Review and perform any adjustments that may be the
cause of a malfunction (refer to Section 3).
Use new seals, gaskets and O-rings when installing
components.
NOTICE
Cleanliness is of extreme importance in
the repair and overhaul of any hydraulic
unit. Before attempting any repairs, the
exterior of the winch must be thoroughly
cleaned to reduce the possibility of
contamination.
Disconnected hoses should be plugged,
and open manifold fittings should be
capped.
Winch Disassembly
Most repairs require disassembly of the winch, although
many major assemblies can be removed from the winch
with the winch still on the tractor. The procedures in this
section describe a complete unit overhaul with the winch
removed from the tractor.
Winch Removal
1. Remove the wire rope from the drum. Clean the
outside of the winch and the area where the winch
contacts the tractor.
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. Drain the gear oil from the winch. Dispose of used oil
in accordance with local regulations.
3. Remove the fairlead from the winch. If left on the
winch, the winch will not remain level when lifted from
the tractor.
4. Disconnect hoses and wire harness from tractor.
5. Connect slings and a crane or lifting device to the
winch.
The slings and crane used to lift the winch
must have a minimum lifting capacity of
5,000 lb (2,268 kg).
6. Remove the mounting hardware securing winch to
tractor.
Содержание H12E
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