TM-9-2350-256-10
RECOVERY VEHICLE, FULL TRACKED: MEDIUM, M88A1
OPERATOR'S MANUAL
OCTOBER 2014
TM-9-2350-256-10 - Page 322 of 796
MAIN HYDRAULIC SYSTEM
1.
Before operating main hydraulic system in cold weather conditions below 0°F (-18°C), perform the
following procedures:
a.
Start main engine (WP 0010).
b.
Close all doors and hatches to crew compartment, except operator's hatch.
c.
Start personnel heater (WP 0037) and set selector switch to HIGH position for approximately
30 minutes.
d.
Open all hinged floor access plates (WP 0027) in crew compartment to allow the heat to circulate
under the floor access plates to all mechanical components.
e.
Prepare main hydraulic system (WP 0073) for operation.
f.
Move SPADE operating lever (Figure 1, Item 1) to RAISE position and hold. This causes hydraulic oil
to spill over relief valve and warm hydraulic fluid faster.
g.
Continue to operate system as in Step "f" until hydraulic oil TEMP gauge (Figure 1, Item 5) needle
moves off 60°F (16°C), or the hydraulic oil low temperature light (Figure 1, Item 4) turns OFF,
indicating hydraulic oil temperature is at least 60°F (16°C).
2.
Operate the main winch lever (Figure 1, Item 2), and hoist winch (Figure 1, Item 3) at a slow speed forward,
then reverse several times to warm the oil in those units.
3.
Close hinged floor access plates (WP 0027) once hydraulic system has reached normal
operating temperature.
END OF TASK
AUXILIARY HYDRAULIC SYSTEM
Before operating auxiliary hydraulic system in cold weather conditions below 0°F (-18°C), perform the
following procedures:
a.
Start Auxiliary Power Unit (APU) (WP 0042).
b.
Move spade operating lever (Figure 1, Item 1) to RAISE position and hold. This causes hydraulic oil to
spill over relief valve and warm hydraulic fluid faster.
TM 9-2350-256-10
0060
0060-2
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