Toro Groundsmaster 3500 30807 Service Manual page 173

Removal (Fig. 75)
WARNING
Before disconnecting or performing any work
on the hydraulic system, all pressure in the
system must be relieved. See Relieving Hy-
draulic System Pressure in the General Infor-
mation section.
1. Remove Philips head screws and steering wheel cap
from steering wheel.
2. Remove the nut securing the steering wheel to the
steering control valve and pull the steering wheel from
the control valve.
3. Remove the steering cover.
4. To prevent contamination of hydraulic system during
steering valve removal, thoroughly clean exterior of
valve.
5. Disconnect hydraulic lines from steering valve. Put
caps or plugs on fittings and hoses to prevent contami-
nation of hydraulic system. Label hydraulic lines for
proper assembly.
6. Remove the four (4) flange screws securing the
steering control valve to the steering valve bracket and
remove the valve from the bracket (Fig. 76).
Installation (Fig. 75)
1. If fittings were removed from steering valve, lubricate
and place new O–rings onto fittings. Install and tighten
fittings (see Hydraulic Fitting Installation in the General
Information section of this chapter).
2. Apply blue Loctite 242 to flange hd. screws and in-
stall steering control valve to the steering valve bracket.
Groundsmaster 3500
2
1. Steering valve
2. Steering valve bracket
3. Remove caps or plugs from hydraulic fittings and
hoses. Connect hydraulic hoses to steering valve (see
Hydraulic Hose and Tube Installation in the General In-
formation section of this chapter).
4. Install steering wheel to the steering control valve.
Torque steering wheel nut from 20 to 26 ft−lb (28 to 35
N−m).
5. Secure steering wheel cap to the steering wheel with
philips head screws.
6. Operate the unit. Check for leaks and check steering
function. Make sure hydraulic tank is full and add hy-
draulic fluid if necessary.
7. Install the steering cover.
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3
1
Figure 76
3. Flange screw (4)
Hydraulic System