Toro Reelmaster 3100-D Service Manual page 129

Reel Circuit Testing − Gear Pump (P1) Flow Test (continued)
Reelmaster ® 3100-D/3105-D
20252SL Rev A
g345071
1. Gear pump (P1)
3. Disconnect the hose connection on the gear pump (P1) leading to port (P1)
on the mow control manifold
4. Install the tester in series with reel drive pump and the disconnected hose
leading to port (P1) of the hydraulic manifold.
5. Make sure that the flow control valve on the tester is fully open.
6. Make sure backlap knob on the hydraulic manifold is in the mow position
and reel speed is set to maximum.
7. Sit in the operator's seat and start the engine. Move the throttle to full speed
(2650 ±50 RPM).
8. Make sure hydraulic fluid is at normal operating temperature by operating the
machine for approximately 10 minutes.
9. Verify with a phototach that the pump speed is approximately 3100 RPM.
10. Verify pump flow at No Load as follows:
Record tester pressure and flow reading at no load. Unrestricted pump
output should be approximately 23.8 LPM (6.3 GPM).
11. Verify pump flow Under Load as follows:
Do not close tester valve fully when performing this test. In this test,
the hydraulic tester is positioned before the manifold relief valve.
Pump damage can occur if the fluid flow is fully restricted by fully
closing the tester flow control valve.
A. Watch flow meter pressure gauge carefully while slowly closing the flow
control valve until 137.9 Bar (2000 PSI) is obtained on gauge.
B. Record the tester pressure and flow readings under load.
12. Set throttle to low speed and shut off engine.
Figure 55
2. To manifold port (P1)
(Figure 55).
CAUTION
Page 5–53 Hydraulic System: Testing