Toro 04384 Service Manual page 127

Removal (Fig. 65)
1. Park the machine on a level surface, engage the
parking brake, lower the cutting units and stop the en-
gine. Remove key from the ignition switch.
CAUTION
Before continuing further, read and become fa-
miliar with General Precautions for Removing
and Installing Hydraulic System Components.
2. Remove screw (item 29) and then steering wheel
cap (item 28) from the steering wheel.
3. Remove nut (item 6) and flat washer (item 8) that se-
cure steering wheel to steering valve.
4. Remove screws (item 13) that secure steering valve
cover (item 16). Remove cover from the machine.
5. Label all hydraulic connections for assembly pur-
poses.
6. For hydraulic hoses that attach to fittings in steering
valve, disconnect hoses from fittings and remove O--
rings. Allow hoses to drain into a suitable container.
7. For remaining hydraulic hose that threads directly
into steering valve, disconnect opposite end of hose
from fitting on hydraulic manifold (ST port). Allow hose
to drain into a suitable container. Note routing of hydrau-
lic hose for assembly purposes.
8. Remove four (4) flange head screws (item 7) that se-
cure steering valve to steering mount. Carefully pull
steering valve with attached hydraulic hose from ma-
chine.
9. Remove hydraulic hose and O--ring from the steer-
ing valve.
10.If necessary, remove hydraulic fittings and O--rings
from steering valve.
11. Discard all removed O--rings from hoses and fittings.
Installation (Fig. 65)
1. If fittings were removed from steering valve, lubricate
and place new O--rings onto fittings. Install and tighten
fittings into steering valve ports (see Hydraulic Fitting
Installation in the General Information section of this
chapter).
2. Install new O--ring on hydraulic hose end that
threads directly into steering valve. Install hose into
steering valve port (see Hydraulic Hose and Tube Instal-
lation in the General Information section of this chapter).
Greensmaster 3250--D
3. While routing hydraulic hose to machine, position
steering valve to steering mount. Secure steering valve
to steering mount with four (4) flange head screws (item
7).
4. For hydraulic hose that threads directly into steering
valve, correctly connect opposite end of hose to fitting
on hydraulic manifold (ST port) (see Hydraulic Hose and
Tube Installation in the General Information section of
this chapter).
5. Using labels placed during steering valve removal,
lubricate new O--rings and connect hydraulic hoses to
fittings in steering valve. Tighten hose connections (see
Hydraulic Hose and Tube Installation in the General In-
formation section of this chapter).
6. Position steering valve cover (item 16) to the steer-
ing mount (item 14). Secure cover to assembly with
screws (item 13).
7. Install steering wheel to steering valve:
A. Apply antiseize lubricant to splines of steering
valve shaft taking care to keep antiseize lubricant
from tapered surface of shaft. Slide steering wheel
onto steering valve.
B. Secure steering wheel to steering valve with flat
washer and nut. Torque nut from 20 to 26 ft- -lb (28 to
35 N- -m).
C. Install steering wheel cap to steering wheel.
8. Check fluid level in hydraulic oil reservoir and adjust
as required.
9. After assembly is completed, rotate steering wheel
in both directions to verify that there are no leaks from
hydraulic connections.
1
1. T port
2. R port
3. E/Ls port
Page 4 - - 95
2
3
5 4
Figure 66
4. P port
5. L port
Hydraulic System