Toro Multi Pro 1750 Service Manual page 87

Removing the Steering Cylinder (Fig. 30)
1. Park the machine on a level surface, stop spray
pump, engage the parking brake and stop the engine.
Remove key from the ignition switch.
2. Label all hydraulic connections for assembly pur-
poses. Clean hydraulic hose ends prior to disconnecting
the hoses from steering cylinder.
CAUTION
Before disconnecting components or perform-
ing any work on hydraulic system, all pressure in
the system must be relieved (see Relieving Hy-
draulic System Pressure in this chapter).
3. Disconnect hydraulic hoses from steering cylinder.
Allow hoses to drain into a suitable container. Put caps
or plugs on disconnected hoses and fittings to prevent
contamination.
4. Remove cotter pins and castle nuts from cylinder ball
joints. Carefully pry cylinder with ball joints from frame
and pitman arm with a ball joint "pickle" fork and remove
steering cylinder from machine.
5. If hydraulic fittings are to be removed from steering
cylinder, mark fitting orientation to allow correct assem-
bly. Remove fittings from cylinder and discard O−rings
(Fig. 31).
6. Remove retaining rings and press ball joints from
cylinder trunnions if necessary.
Installing the Steering Cylinder (Fig. 30)
1. If ball joints were removed from cylinder, press ball
joints into cylinder trunnions and install retaining rings.
2. If fittings were removed from steering cylinder, lubri-
cate and place new O−rings onto fittings. Install fittings
into cylinder openings using marks made during the re-
moval process to properly orientate fittings. Tighten fit-
tings (see Hydraulic Fitting Installation in this chapter).
Multi Pro 1750
1. Steering cylinder
2. Elbow fitting (2)
3. Position cylinder ball joints in frame and pitman arm
and install castle nuts. Tighten nuts from 80 to 90 ft−lbs
(109 to 122 N−m) and install cotter pins.
4. Remove caps and plugs from disconnected hoses
and fittings.
5. Connect hydraulic hoses to steering cylinder
(Fig. 31). Tighten hose connections (see Hydraulic
Hose and Tube Installation in this chapter).
6. Check fluid level in transaxle and adjust as required
(see Operator's Manual).
7. Test for proper steering operation before returning
machine to service.
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3
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3
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Figure 31
3. O−ring (2)
4. O−ring (2)
Hydraulic System
4