Wheel Motor Service
8
7
6
10
5
4
2
3
11
1
9
19
12
23
13
14
15
16
17
18
16
20
16
21
FRONT WHEEL MOTOR SHOWN
24
16
16
22
Figure 39
1.
2.
3.
4.
5.
6.
7.
8.
Dirt seal
9.
Woodruff key
17. Commutator seal
18. Commutator ring
19. Commutator
20. Manifold
Housing assembly
Back–up washer
Seal ring
10. Cap screw (7 used)
11. Plug
12. O–ring
Shaft seal
13. Spring
21. Stator
Coupling shaft
Thrust bearing
Drive link
14. Ball
22. Wear plate
23. Rotor
24. Vane
15. End cover
16. Body seal (5 used)
NOTE: The wheel motors used on Sand Pro and Infield
Pro machines have the same basic construction. The
motors do however have internal differences.
The right and left rear wheel motors have the same dis-
placement (8.6 in3 (141 cm3) per revolution) but have
different rotation for the forward direction: the right rear
has a clockwise drive direction for forward and the left
rear has a counter–clockwise direction. Additionally, the
left rear motor has a hot oil shuttle to bleed off a small
amount of hydraulic fluid for cooling of the closed loop
traction circuit.
The front wheel motor (shown in Fig. 39) has a different
displacement (17.1 in3 (280 cm3) per revolution) than
the rear motors and has a clockwise direction for the for-
ward direction. The front motor is also equipped with a
check valve that allows the motor to over run during tight
turns in the forward direction and by–passes flow in re-
verse.
NOTE: For repair of the wheel motors, see the Parker
Torqmotor
TM
Service Procedure (TC, TB, TE, TJ, TF,
TG, TH and TL Series) at the end of this chapter.
Hydraulic System
Page 4 – 46
Sand Pro & Infield Pro 3040/5040
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| Document Type | Service Manual |
| Language | English |
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