Test No. 3: Steering Circuit Pressure - Toro Reelmaster 6500–D Service Manual

TEST NO. 3: Steering Circuit Pressure

1. Make sure hydraulic oil is at normal operating temper-
ature before doing test.
2. Park the machine on a level surface, engage the
parking brake and stop the engine.
3. Connect a 5000 PSI gauge onto steering pressure
test port.
4. Start the engine and put throttle at full engine RPM
(approx. 2500 RPM for 6500–D and 2750 RPM for
6700–D).
5. Turn steering all the way in one direction and momen-
1
tarily hold the steering wheel against resistance.
GAUGE READING: 1350 +/– 100 PSI.
Figure 14
6. Stop the engine.
1. Steering circuit pressure test port
7. If pressure is too high or low, check charge pressure
and adjust as necessary (charge pressure affects steer-
ing pressure). If pressure is low, inspect relief valve. If
relief valve is operating properly, steering pump should
be suspected of wear and inefficiency. If steering wheel
continues to turn at end of cylinder travel (with lower
than normal effort), cylinder or steering valve should be
suspected of wear or damage.
NOTE: Steering pump also provides pressure and flow
for lift of no. 6 and 7 cutting units on Reelmaster 6700–D.
Hydraulic System Reelmaster 6500–D/6700–D
Page 4 – 32 Rev. B