Piston (Traction) Pump Service

 

 

100 to 110 ft--lb

 

 

27 to 31 ft--lb

 

 

 

 

(136 to 149 N-m)

16

 

(37 to 42 N-m)

 

 

 

 

 

 

20

 

 

 

100 to 110 ft--lb

 

 

 

 

 

 

 

 

 

 

150 to 160 in--lb

18

38

 

15

 

(136 to 149 N-m)

4 to 6 ft-lb

 

 

 

(17 to 18 N-m)

 

 

 

 

 

 

(5 to 8 N--m)

 

 

 

 

 

 

14

 

 

 

 

 

 

 

 

 

 

 

1

29

 

 

 

 

26

 

 

40 to 48 in-lb

4

 

 

 

 

 

(4.5 to 5.4 N--m)

 

 

 

45

 

22

 

 

 

 

 

 

27

 

 

 

 

 

10

 

17

 

 

 

 

 

 

28 23

 

 

 

 

 

33

 

 

 

8

 

 

 

 

 

7

30

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

34

 

 

43

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

35

 

 

 

 

 

 

31

 

36

 

44

 

 

32

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

6

40 to 48 in-lb

 

 

 

 

 

 

 

 

 

 

 

 

25 to 28 ft--lb

(4.5 to 5.4 N--m)

 

37

 

 

 

 

 

 

 

 

 

 

 

42

(34 to 38 N-m)

 

 

 

 

 

 

 

 

 

 

 

 

 

19

 

40

 

41

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

31

 

 

 

 

39

 

 

 

5

40 to 48 in-lb

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

37

 

 

(4.5 to 5.4 N--m)

 

 

 

21

 

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

 

 

33

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

3

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

 

 

 

 

 

 

 

 

 

24

 

 

 

 

 

 

 

2

 

25

 

 

 

 

 

 

 

 

 

 

 

 

Figure 55

1.

Jam nut

16.

Relief valve (Reverse)

31.

Flat washer

2.

Retaining ring

17.

Socket head screw

32.

Housing gasket

3.

Retaining ring

18.

Valve plate

33.

Cover plate gasket

4.

Seal washer

19.

Pump housing

34.

Control assembly gasket

5.

Socket head screw

20.

Backplate assembly

35.

Plug

6.

Rotating kit assembly

21.

Drive shaft

36.

O-ring

7.

Servo piston assembly

22.

Nut

37.

Seal sub-assembly

8.

Piston follower

23.

Lock washer

38.

Roll pin

9.

Cover plate

24.

Washer

39.

Bearing

10.

Cover plate

25.

Shaft seal

40.

Dowel bushing

11.

Camplate assembly

26.

Relief valve (Forward)

41.

Cradle sub-assembly

12.

Thrust race

27.

Control arm

42.

Cap screw

13.

Thrust bearing

28.

Servo control assembly

43.

Button head cap screw

14.

Bypass valve

29.

Washer

44.

Bushing

15.

Cap screw

30.

Orifice plate (3 used)

45.

Bearing

NOTE: For service of the piston (traction) pump (includ- ing the servo control (item 28), see the Eaton Model 72400 Servo Controlled Piston Pump Repair Informa- tion at the end of this chapter.

Hydraulic System

Page 4 -- 76

Groundsmaster 4100--D

Page 110
Image 110
Toro 4100-D service manual Piston Traction Pump Service