Toro Reelmaster 3100-D Service Manual page 135

Steering/Lift/Sidewinder Circuit Testing − Relief Valve Pressure
Test (continued)
Reelmaster ® 3100-D/3105-D
20252SL Rev A
g345083
1. Gear pump
3. Install a T−connector with a pressure gauge between the gear pump and the
hydraulic hose connection on the gear pump (P2)
4. Make sure that the steering wheel is positioned so the rear wheel points
directly ahead.
5. Start the engine, and move throttle to full speed (2650 ±50 RPM).
6. Make sure that the hydraulic fluid is at normal operating temperature by
operating the machine for approximately 10 minutes.
7. Watch the pressure gauge carefully while turning the steering wheel
completely in one direction and holding.
Do not allow pressure to exceed 1500 PSI. Hold steering wheel at full
lock only long enough to get a system pressure reading. Holding the
steering wheel against the stop for an extended period may damage
the steering control valve.
8. System pressure should reach 65 to 70 Bar (940 to 1015 PSI) as the relief
valve opens.
9. Return the steering wheel to the center position and shut off the engine.
10. If specification is not met, repair or replace steering control valve.
11. Disconnect the T−connector with pressure gauge and reconnect hydraulic
hose to gear pump (P2).
Figure 59
2. To steering control valve
CAUTION
Page 5–59
(Figure 59).
Hydraulic System: Testing