Test No. 1: Traction Circuit Charge Pressure - Toro Reelmaster 6500–D Service Manual

TEST NO. 1: Traction Circuit Charge 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 1000 PSI gauge onto charge 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) with no load on the system.
5. Also take a gauge reading while operating the ma–
1
chine in forward and reverse. Start the engine and put
throttle at full engine RPM. Apply the brakes and push
the traction pedal forward, then reverse.
Figure 12
GAUGE READING: 180 +/– 30 PSI.
1. Charge pressure test port
6. Stop the engine. If pressure is low, inspect charge re-
lief valve and valve seat. Charge pressure can be ad-
justed by changing shim thickness behind the spring.
Hydraulic System Reelmaster 6500–D/6700–D
Page 4 – 30 Rev. B