Toro Reelmaster 5010- H Service Manual page 77

5. Thoroughly clean junction of hydraulic hose and
right side fitting on bottom of piston (traction) pump (Fig.
38). Disconnect hose from right side pump fitting.
IMPORTANT: Make sure that the oil flow indicator
arrow on the flow meter is showing that the oil will
flow from the pump, through the tester and into the
disconnected hydraulic hose.
6. Install tester with pressure gauge and flow meter in
series between piston pump fitting and disconnected
hose to allow flow from piston pump to tester. Use hy-
draulic hose kit (see Special Tools in this chapter) to con-
nect tester to machine. Make sure that fitting and hose
connections are properly tightened. Also, make sure the
flow control valve on tester is fully open.
CAUTION
Drive wheels will be off the ground and rotating
during this test. Make sure machine is supported
so it will not move and accidentally fall to prevent
injuring anyone near the machine.
7. Start engine and run at idle speed. Check for any hy-
draulic leakage from tester and hose connections. Cor-
rect any leaks before proceeding.
8. Increase engine speed to high idle speed (3000
RPM). Make sure hydraulic oil is at normal operating
temperature by operating the machine under load for
approximately ten (10) minutes. Make sure the hydrau-
lic reservoir is full.
9. Slowly push traction pedal to fully forward position.
Keep pedal fully depressed in the forward position dur-
ing the flow test.
10.Have second person watch pressure gauge on test-
er carefully while slowly closing the tester flow control
valve until 1000 PSI (69 bar) is obtained. Verify with the
InfoCenter Display that the engine speed is still 3000
RPM.
Reelmaster 5010- H
11. Observe flow gauge. For a piston pump in good con-
dition, flow indication should be approximately 26 GPM
(98 LPM).
12.Open flow control valve on tester, release traction
pedal to the neutral position and shut off engine. Record
test results.
13.If measured flow is less than 23 GPM (87 LPM), con-
sider the following:
A. The piston (traction) pump swash plate is not be-
ing rotated fully (e.g. traction pedal linkage may need
adjustment, mow speed limiter is not in the transport
position).
B. The piston (traction) pump needs to be repaired
or replaced as necessary.
C. Make necessary repairs before performing addi-
tional hydraulic tests on the traction system.
14.When testing is complete, disconnect tester and
hose kit from pump fitting and machine hydraulic hose.
Reconnect hose to pump fitting.
2WD MACHINE SHOWN
RIGHT
FRONT
1. Piston (traction) pump
2. RH elbow fitting
3. Hyd hose (forward)
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3
1
2
5
4
Figure 38
4. LH elbow fitting
5. Hyd hose (reverse)
Hydraulic System