8-2. STEERING SYSTEM MAINTENANCE (CONT)
d. Hydraulic Oil Cooler.
This task covers removal, cleaning, inspection, and in-
s t a l l a t i o n o f h y d r a u l i c o i l c o o l e r.
TOOLS: No. 1 Common Organizational Maintenance Tool Kit
Socket wrench set, 3/8 inch drive
Fixed open end wrench set
Pipe plug, 1-15/16-12 thread size
MATERIALS/PARTS: Clean cloths (Appendix C, item 1)
Cleaning solvent P-D-680 (Appendix C, item 2)
Detergent (Appendix C, item 3)
Hydraulic oil (Appendix C, item 13)
PERSONNEL REQUIRED: Two Construction Equipment Mechanics MOS 62B
PRELIMINARY PROCEDURE: Engine left and right side panels removed (page
9-14), engine top hood removed (page 9-11), and heater hose (30, page
10-38) disconnected from engine (page 10-37).
REMOVAL (SHEET 1 OF 3)
Draining oil from hydraulic reservoir is not necessary if a vacuum pump
i s a v a i l a b l e.
If a vacuum pump is not available,
drain hydraulic oil from hydraulic
reservoir then go to step (4) below .
If a vacuum pump is available, go to
step (2) below.
If vacuum pump is available, slowly
loosen hydraulic reservoir fill cap
to relieve air pressure. Remove hy-
d r a u l i c r e s e r v o i r f i l l c a p.
Connect vacuum pump to hydraulic res-
ervoir fill cap opening. Then turn
vacuum pump on.