1. Before starting a task, think about the risks and hazards to your safety as well as that of others. Wear
protective gear such as safety goggles or lenses, safety shoes, rubber apron, and gloves. Protect yourself
2. Observe all WARNINGs, CAUTIONs, and NOTEs.
3. When lifting heavy parts, have someone help you. Make sure lifting equipment is working properly, suitable for
the task assigned, of sufficient load capacity, and secured against slipping.
4. Always use power tools carefully.
5. Before beginning a procedure, ensure the following conditions have been observed, unless otherwise
a. Machine must be parked on level ground with parking brake engaged.
b. Work tool must be lowered to the ground.
Steering control lever must be in Neutral position.
d. Engine must be off.
e. Components that are hot at operating temperatures (i.e., cooling, exhaust, and hydraulic systems) must
cool down before they are removed.
Components must, however, be at operating temperature to be tested.
g. Batteries must be disconnected when performing system maintenance.
h. Hydraulic system pressure must be relieved before disconnecting any hydraulic system line or fitting. Refer
to Hydraulic System Pressure Release (WP 0186).
END OF TASK
1. Before beginning a task, find out how much repair, modification, or replacement is needed to fix equipment as
described in this manual. Sometimes the reason for equipment failure can be seen right away and complete
teardown is not necessary. Disassemble equipment only as far as necessary to repair or replace damaged or
2. All tags and forms attached to the equipment must be checked to learn the reason for removal from service.
Check all Modification Work Orders (MWOs) and Technical Bulletins (TBs) for equipment changes and
3. In some cases, a part may be damaged by removal. If a part appears to be good, and other parts behind it are
not defective, leave it on and continue the procedure. Here are a few simple rules:
a. Do not remove dowel pins or studs unless loose, bent, broken, or otherwise damaged.
b. Do not pull bearings or bushings unless damaged. If you must get at parts behind them, pull out bearings
or bushings carefully.
Replace all gaskets, seals, preformed packings, O-rings, cotter pins, spring pins, self-locking nuts, and
END OF TASK