TM 5-2350-262-20-3
12
REAR OF VEHICLE RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE
The rear of vehicle is raised by left and right actuators, interconnected by hydraulic circuit 8. The SPRUNG and
UNSPRUNG circuits operate left and right rear actuators through valves and mechanical controls. Circuit 9
operates SPRUNG mode and circuit 11 operates UNSPRUNG mode.
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.
HIGH-PRESSURE
1
CIRCUIT
3
2
RETURN
SUPPLY
4
5
18
6
COMPONENTS:
17
1. RETURN LINE FILTER
16
2. MAIN ACCUMULATOR
3. HIGH-PRESSURE FILTERS
4. DIRECTIONAL CONTROL VALVE
15
BANK
5. SPRUNG/UNSPRUNG VALVE
14
7
6. NO. 4 ACTUATOR, LEFT HAND
7. HYDRAULIC RESERVOIR
8. NO. 3 ACTUATOR, LEFT HAND
9. NO. 2 ACTUATOR, LEFT HAND
8
10. NO. 1 ACTUATOR, LEFT HAND
12
11. BUMP STOP CYLINDERS
9
12. COMPENSATING PUMP
13. CHECK VALVE
13
11
14. NO. 1 ACTUATOR, RIGHT HAND
10
15. NO. 2 ACTUATOR, RIGHT HAND
16. NO. 3 ACTUATOR, RIGHT HAND
11
17. MAIN HYDRAULIC PUMP
18. NO. 4 ACTUATOR, RIGHT HAND
SUSPENSION CIRCUIT
