TM 5-3805-291-23-1
MECHANICAL GENERAL MAINTENANCE INSTRUCTIONS - CONTINUED
0023 00
WORK SAFETY - CONTINUED
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 specified:
a.
Machine must be parked on level ground with parking brake engaged.
b.
Work tool must be lowered to the ground.
c.
Transmission must be in N (Neutral).
d.
Engine must be off.
e.
Components which are hot at operating temperatures (i.e., cooling, exhaust, and hydraulic systems) must cool
down before they are removed.
f.
Components must, however, be at operating temperature to be tested.
g.
Battery disconnect switch must be in OFF position and/or batteries disconnected when performing electrical sys-
tem maintenance.
h.
Hydraulic system pressure must be relieved before disconnecting any hydraulic system line or fitting. Refer to
Relieving Hydraulic System Pressure in this work package.
RELIEVING HYDRAULIC SYSTEM PRESSURE
0023 00
WARN I N G
When servicing this machine, performing maintenan e, or disposing of hazardous materials, consult
c
your unit/local hazardous waste disposal center or safety office for local regulatory guidance. If further
information is needed, please contact The Army Environmental Hotline at 1-800-872-3845.
DO NOT disconnect or remove any hydraulic system lines or fitting unless engine is shut down and
hydraulic system pressure has been relieved. Tighten all connections before applying pressure. Escap-
ing hydraulic fluid under pressure can penetrate the skin, causing injury to personnel.
At operating temperature, hydraulic oil is hot. Allow hydraulic oil to cool before removing any hydrau-
lic fitting. Failure to follow this warning may result in injury to personnel.
To prevent injury to personnel, wear protective eye covering and gloves.
Sudden movement of machine can cause injuryto personnel on or near the machine.
1.
Relieving Hydraulic System Pressure.
a.
Park machine on a smooth, level surface.
b.
Lower work tool to ground.
c.
Engage parking brake.
d.
If locked, press bottom of hydraulic lockout (IMPLEMENT DISABLE) switch to unlock hydraulic controls.
e.
Shut down engine.
f.
Turn engine start switch to ON position without starting engine.
g.
Move loader control joystick and auxiliary hydraulic control lever through all positions. This will relieve any pres-
sure that may be present in hydraulic system.
h.
Slowly loosen hydraulic tank filler cap and allow any pressure to escape.
0023 00-2
