BOOM EXTEND CYLINDER REPLACEMENT/REPAIR - continued

TM 10-3930-673-34

16-18. BOOM EXTEND CYLINDER REPLACEMENT/REPAIR (CONT)

a. Removal.

WARNING

Hydraulic oil in the system can be under

pressure over 5,000 psi (34475 kPa) with the

engine and pump OFF. ALWAYS relieve

pressure in hydraulic lines before attempting to

remove any component in the hydraulic system.

With the engine OFF and hydraulic attachments

TR01767

on the ground, move control levers through all

operating positions several times to relieve line

pressure. Relieve pressure in hydraulic oil tank

by loosening filler cap very slowly. Failure to

follow these precautions could result in serious

personal injury.

CAUTION

Wipe the area clean around all hydraulic

connections to be opened during removal

and disassembly. Cap oil lines and plug holes

after removing lines. Contamination of the

hydraulic system could result in premature

failure.

TR01765

Retract cylinder before removal. Failure to

follow this precaution will cause part

damage.

NOTE

If more than one hydraulic line is removed,

identify lines to assure proper installation. Use

suitable container to catch any hydraulic oil that

may drain from system.

(1)

Tag, mark, and disconnect two hoses (1)

from boom extend cylinder (2).

TR01434

16-98