TM-5-2350-262-20-3
ARMORED COMBAT EARTHMOVER (ACE), M9
TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL; VOLUME 3 OF 3; HYDRAULIC TROUBLESHOOTING TEST PROCEDURES
TM-5-2350-262-20-3 - Page 51 of 319
3-16
TM 5-2350-262-20-3
The hydraulic control valves on the directional control valve bank are activated by mechanical linkages from the
operator’s compartment which then activate hydraulic functions of the vehicle.
NOTE
Perform this procedure only when all hydraulic functions are inoperative.
Refer to hydraulic schematic in appendix E.
WARNING
High pressure is present in the M9 hydraulic system. Do not disconnect any hydraulic
system component unless hydraulic system pressure has been relieved. Ensure each
hydraulic control lever is moved several times through all positions and hydraulic tank
dipstick is slowly loosened to relieve pressure. Failure to comply may result in severe
injury or death to personnel.
COMPONENTS:
1.
RETURN LINE FILTER
2.
MAIN ACCUMULATOR
3.
HIGH-PRESSURE FILTERS
4.
EJECTOR CYLINDER
5.
DIRECTIONAL CONTROL
VALVE BANK
6.
WINCH MOTOR
7.
SPRUNG/UNSPRUNG
VALVE
8.
APRON CYLINDER
9.
BILGE PUMP MOTOR
10.
HYDRAULIC RESERVOIR
11.
NO. 4 ACTUATOR, LEFT
HAND
12.
NO. 3 ACTUATOR, LEFT
HAND
13.
SUSPENSION RELIEF
VALVE (BEHIND)
14.
NO. 2 ACTUATOR, LEFT
HAND
15.
INTERMEDIATE WHEEL
VALVE
HYDRAULIC CIRCUIT
ALL HYDRAULIC FUNCTIONS INOPERATIVE
1
1
2
3
4
6
7
10
8
9
11
12
13
5
14
15
16
17
20
18
15
17
22
23
24
25
8
26
27
19
21
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