Toro Multi Pro 1750 Service Manual page 83

Removing the Steering Control Valve (Fig. 27)
1. Park the machine on a level surface, stop spray
pump, engage parking brake and stop engine. Remove
key from the ignition switch.
2. Remove cover (item 1) from steering wheel by care-
fully prying up on one of the cover spokes.
3. Remove lock nut and flat washer that secure steer-
ing wheel to steering column.
4. Remove steering wheel from steering column shaft.
Use a suitable puller if necessary.
5. Remove three (3) screws and flat washers (item 13
& 14) that secure hood to floor plate.
6. Remove ten (10) panel fasteners securing hood to
dash (item 6), machine frame, and center of dash to sup-
port tube. Remove hood and dash. If necessary, discon-
nect headlight wire harness connectors.
7. Remove cable ties and dust cover (item 9).
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).
8. Label all hydraulic hoses for assembly purposes
(Fig. 28). Clean hydraulic hose ends prior to disconnect-
ing the hoses from the steering control valve.
9. Disconnect hydraulic hoses connected to the steer-
ing control valve. Allow hoses to drain into a suitable
container. Cap or plug openings of control valve and
hoses to prevent contamination.
10.Support steering control valve to prevent it from fal-
ling during removal. Loosen and remove four (4) cap
screws (item 11) that secure steering column and steer-
ing control valve and remove steering control valve from
machine.
Installing the Steering Control Valve (Fig. 27)
1. Position steering control valve to frame. Secure
steering column and control valve to frame with four (4)
cap screws (item 11).
2. Remove caps and plugs from disconnected hoses
and fittings. Using labels placed during removal, con-
nect hydraulic hoses to steering control valve (Fig. 28).
Tighten hose connections (see Hydraulic Hose and
Tube Installation in this chapter).
Multi Pro 1750
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1. Steering wheel
2. T port (hose to oil filter)
3. P port (hose from hydraulic enable valve)
4. L port (hose to trunnion end of steering cylin-
der)
5. R port (hose to barrel end of steering cylinder)
6. E port (hose to boom lift control manifold)
3. Install dust cover (item 9) over hydraulic hoses and
secure with four (4) cable ties.
4. Position dash over steering control valve and secure
to support tube with one (1) panel fastener (item 5).
5. Connect headlight wire harness connectors and in-
stall hood to dash and machine frame with nine (9) panel
fasteners.
6. Install three (3) screws and flat washers (item 13 &
14) securing hood to floor plate.
7. Thoroughly clean tapered surfaces of steering wheel
and steering column.
8. Apply a thin coating of antiseize lubricant to splines
of steering column taking care to keep antiseize lubri-
cant from column taper. Slide steering wheel onto steer-
ing column.
9. Secure steering wheel to steering column with flat
washer and lock nut. Tighten lock nut from 20 to 26 ft−lb
(28 to 35 N−m).
10.Install steering wheel cover to steering wheel.
11. Check fluid level in transaxle and adjust as required
(see Operator's Manual).
12.Test for proper steering operation before returning
machine to service.
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(VIEW FROM BELOW)
Figure 28
Hydraulic System
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