Hydrostatic Transmission Neutral Arm Assembly - Toro Groundsmaster 3280-D Service Manual

Hydrostatic Transmission Neutral Arm Assembly

71 to 89 in- -lb
(8 to 10 N- -m)
10
9
8
7
1. Transmission housing
2. Cap screw
3. Mounting plate
4. Neutral return spring
5. Neutral return arm
6. Bushing
Disassembly (Fig. 30)
1. Disassemble neutral arm components on hydrostat-
ic transmission as needed using Figure 30 as a guide.
NOTE: To remove trunnion cam (item 17) from hydro-
static transmission, transmission has to be disas-
sembled.
Assembly (Fig. 30)
1. Assemble neutral arm components to hydrostatic
transmission using Figure 30 as a guide. If eccentric pin
(item 8) was removed, make sure that mark on eccentric
pin is orientated to top of transmission. Note fastener
torque specifications shown in Figure 30.
2. Lubricate grease fitting on eccentric pin (see Trac-
tion Unit Operator's Manual).
3. Check and adjust neutral position (see Traction Unit
Operator's Manual).
Groundsmaster 3280--D/3320
28 to 36 in- -lb
(3.3 to 4.1 N- -m)
16
15
71 to 89 in- -lb
(8 to 10 N- -m)
14
11
13
9
12
5
6
Figure 30
7. Grease fitting
8. Eccentric pin
9. Retaining ring
10. Jam nut
11. Socket head screw
12. Pin
Page 5 - - 39
18
17
2
3
15 to 17 ft- -lb
4
(20 to 24 N- -m)
13. Bearing
14. Socket head screw (4 used)
15. Socket head screw
16. Neutral proximity switch
17. Trunnion cam
18. Seal
4. Check for correct operation of neutral switch and ad-
just if needed (see Traction Neutral Switch adjustment
in the Components section of Chapter 6 -- Electrical Sys-
tem).
Figure 31
1. Eccentric pin
1
2
1
2. Alignment mark
Hydraulic System