Toro Groundmaster 31900, Service Manual

Page: 182 / 355

Removing the Steering Control Valve (continued)
7. Support the steering control valve to prevent it from falling during removal.
8. Raise the rubber boot at the base of the steering column, then loosen and
remove the 4 fasteners securing the steering control valve to the steering
column.
9. Slide the steering control valve from the steering column, and remove the
steering control valve from the machine.
10. If necessary, remove the hydraulic fittings from the steering control valve and
discard the O-rings.
Installing the Steering Control Valve
1. If the hydraulic fittings were removed from the steering control valve, lubricate
new O-rings with clean hydraulic fluid, position the O-rings to the fittings, and
install the fittings to the steering control valve; refer to
Installing the Hydraulic
Fittings (SAE Straight Thread O-Ring Fittings) (page 5–9) .
2. Apply anti-seize lubricant to the splines of the steering control valve input
shaft.
3. Slide the steering control valve onto the steering column. Secure the steering
control valve to the steering column with the previously removed fasteners
and tighten the fasteners from
11 to 13 N·m (96 to 120 in-lb) .
4. Install the rubber boot to the base of the steering column.
5. Remove the caps and plugs then connect the hydraulic tubes to the control
valve fittings; refer to Installing Hydraulic Hoses and Tubes (O-Ring Face
Seal Fitting) (page 5–7) .
6. Install the steering cover.
7. Charge the hydraulic system; refer to Charging the Hydraulic System (page
5–62) .
Hydraulic System: Service and Repairs Page 5–96 Groundsmaster ® 3200, 3300 and 3310
19240SL Rev A