Steering Control Valve - Toro GroundsmasterR 4300-D Service Manual

Steering Control Valve

Antiseize
Lubricant
84 to 120 in- -lb
(9.5 to 13.5 N- -m)
Antiseize
Lubricant
8
2
22
7
13
15
1. Steering column
2. Hydraulic fitting (4 used)
3. Steering wheel
4. Steering wheel cover
5. Gear pump
6. Socket head screw (4 used)
7. Flange nut
8. O- -ring
Removal (Fig. 97)
1. Park the machine on a level surface, engage the
parking brake, lower the cutting decks and stop the en-
gine. Remove the key from the ignition switch.
2. Remove fasteners that secure shroud to front of ma-
chine (Fig. 98). Remove shroud from machine to allow
access to steering control valve. Locate and retrieve two
(2) rubber bushings and spacers.
3. Slide rubber bellows up from bottom of steering col-
umn. Support steering column to prevent it from falling.
Hydraulic System
1
6
17
19
14
19
7
9. Hydraulic tube
10. Hydraulic tube
11. Hydraulic tube
12. Hydraulic tube
13. Column brace
14. Steering control valve
15. Flange head screw (2 used)
16
5
10
9
18
Figure 97
4. Loosen and remove four (4) screws and flange nuts
that secure steering column brace (item 13) to machine.
Remove brace.
5. Read the General Precautions for Removing and
Installing Hydraulic System Components at the begin-
ning of the Service and Repairs section of this chapter.
6. Label all hydraulic connections for assembly pur-
poses. Note port designations on steering control valve
(Fig. 99). Thoroughly clean hydraulic connections prior
to loosening hydraulic lines.
Page 4 - - 108
4
20 to 26 ft- -lb
20
(28 to 35 N- -m)
21
3
11
12
16. Flange head screw (2 used)
17. Socket head screw (4 used)
18. Flange nut (2 used)
19. Tube clamp
20. Lock nut
21. Flat washer
22. O- -ring
Groundsmaster 4300--D
RIGHT
FRONT