3-29. CLEANING HYDRAULIC SYSTEM (CONT)
b. Flushing Water from Hydraulic System (Sheet 1 of 3). This task covers removal
of water from hydraulic system oil.
TOOLS: Chain hoist
MATERIAL REQUIRED: Lubricating oil (Appendix C, item 15)
PERSONNEL REQUIRED: Two Construction Equipment Mechanics MOS 62B
REFERENCES: TM 5-3805-262-20
Start engine and operate at 1500 rpm.
(2) Fully retract all hydraulic cylinders:
(a) Hold LIFT ARM control lever in LOWER position until bucket is fully low-
ered, then return LIFT ARM control lever to NEUT. position.
(b) Hold BUCKET control lever in CROWD position until bucket is fully rolled
back, then return BUCKET control lever to NEUT. position.
(c) Hold CLAM control lever in OPEN position until clam assembly is fully
open, then return CLAM control lever to HOLD position.
When using chain hoist to
support parts, be sure chain
hoist is securely fastened
to part and that all slack
chain is taken up.
Failure to do so could cause
serious injury due to part
falling on you. If you are
i n j u r e d
f a l l i n g
ipment, obtain medical
Connect chain hoist to clam
assembly. Take up all slack in
chain hoist to support clam
assembly in fully open posi-
tion as shown.
Turn off engine.
Drain, clean, and refill hy-
draulic reservoir (refer to TM