Toro Groundsmaster 5900 Series Service Manual page 235

Removal (Figure 118) (continued)
Groundsmaster ® 5900 & 5910
16227SL Rev B
4. Read the General Precautions for Removing and Installing Hydraulic System
Components (page
5. To prevent contamination of the hydraulic system during steering control
valve removal, thoroughly clean the exterior of the control valve and fittings.
6. For assembly purpose, label all the hydraulic connections. Note the port
designations on the steering control valve.
Before opening the hydraulic system, operate all hydraulic controls
to release system pressure and avoid injury from the pressurized
hydraulic fluid: refer to
5–3).
7. Disconnect the hydraulic lines from the steering control valve. Allow the
lines to drain into a suitable container.
8. Install the clean cap or plugs on the hydraulic lines and fittings to prevent
contamination.
9. Remove the steering control valve from the machine using
a guide.
10. If the hydraulic fittings are to be removed from the steering control valve, mark
the fitting orientation to allow correct assembly. Remove the fittings from the
steering control valve and discard O-rings; refer to
g278283
1. Steering control valve
2. 45º hydraulic fitting
5–73).
CAUTION
Relieving Hydraulic System Pressure (page
Figure 119
3. Straight fitting (3 used)
4. 90º hydraulic fitting
Page 5–135
Figure 118
Figure 119 and Figure
Hydraulic System: Service and Repairs
as
120.