TM 5-3805-298-23-2
0172
RELIEVE HYDRAULIC SYSTEM PRESSURE CONTINUED
4. Lower work tool (bucket or forks) to ground.
5. Shut down engine.
6. Turn ignition switch to ON position without starting engine.
7. Move control levers through full range of travel several times. This will relieve any pressure that may be
present in hydraulic system.
8. Push and release service brake pedal 1520 times. This will relieve any pressure that may be present in brake
system.
9. Slowly loosen hydraulic tank filler cap and allow any pressure to escape.
10. Tighten filler cap on hydraulic tank.
11. Hydraulic system has been released and lines or components can be removed.
GENERAL INFORMATION
000172
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
tear down is not necessary. Disassemble equipment only as far as necessary to repair or replace damaged or
broken parts.
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
updates.
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.
c.
Replace all gaskets, seals, preformed packings, O-rings, cotter pins, spring pins, self-locking nuts, and
0172-3
