CHAPTER 12: MAINTENANCE OF MAIN HYDRAULIC SYSTEM
TM 9-2350-256-20
12-1 REPLACE MECHANICAL TRANSMISSION AND HYDRAULIC PUMP
HYDRAULIC LINES AND FITTINGS-Continued
a. REMOVAL
WARNING
Hydraulic fluid under pressure can penetrate skin or damage eyes. Fluid leaks under pressure
may not be visible, use a piece of cardboard or wood to find leaks, but do not use bare hand. Wear
safety goggles for protection. If fluid enters skin or eye, get immediate medical attention.
Do not attempt to loosen or tighten hydraulic fittings or lines when the system is pressurized.
Ensure that the boom is in the stowed position before doing any maintenance on the hydraulic
system.
Do not move under any hydraulically controlled implement when making adjustments or repairs
to hydraulic system. Lower implement and work from above. If implement must be raised for
access, always block to support. If implement drops, injury to personnel can result.
Remove lines and fittings as required using legends, locator views, Table 12-1 for equipment conditions,
Table 12-2 for port routing and the line/fitting illustration as a guide.
1
Hose assembly Code No. 75A
4
Hose assembly Code No. 73
7
Hose assembly Code No. 71
2
Hose assembly Code No. 62
5
Hose assembly Code No. 74
8
Hose assembly Code No. 75
3
Hose assembly Code No. 70
6
Hose assembly Code No. 72
9
Hose assembly Code No. 76
12-2
