Sakai SW800 Series, Shop Manual

Page: 38 / 159

2-024
Description and Operation of Hydraulic System
2-3-4. Propulsion circuit
FRONT ROLL REAR ROLL
IN
OUT
T2
A
B A
B A
DR
B A
PB
DR
B T
P
OUT IN
T P
P.T.O
S D
PB
h
h
8
7
10
9
i i
f
g
11
6
e
d
c c
b
a
4
2
1
3
15
k
14
13
12
SW8002016
5
1. Engine
2. Coupling
3. Propulsion pump ass’y
a. Control valve
b. Servo cylinder
c. High pressure relief valve
d. Charge relief valve
e. Cut-off valve
4. Return filter
5. Unloader valve
6. Vibrator pump ass’y
7. Rear propulsion motor ass’y
f. Shuttle valve
g. Flushing valve
h. Negative brake
i. Gear reducer
8. Front propulsion motor
h. Negative brake valve
i Gear reducer
9. Front drum
10. Rear drum
11. Brake release valve
12. Suction filter
13. Steering pump ass’y
14. Orbitrol ass’y
k. Relief valve
15. Line filter (charge circuit)