6-56 4203780 First Edition
HYDRAULICS
6
Lift/Steer Pump Test
See Figures 6-58 and 6-59.
NOTE
Before performing this test perform field test procedures.
(See “Field Test Procedures” on page 6-24.)
!
WARNING
1. Park the mower safely. (See “Park Mower Safely” on
page 1-6.)
2. Raise the seat.
Figure 6-58
3. Disconnect hose (1) from fitting (2).
Figure 6-59
4. Connect flow meter inlet test hose (5) to fitting (2).
5. Connect flow meter outlet test hose (3) to hose (1).
6. Open flow meter valve (4) completely.
Figure 6-60: Lift Steer Pump Test
7. Set park brake.
NOTE
Verify engine rpm is within specification (2800 rpm ± 50)
to ensure accurate hydraulic test results.
8. Start engine and run at full throttle (2800 rpm ± 50).
The hydraulic system is under pressure, and the
oil will be hot.
• Always relieve pressure in the hydraulic
system before performing service.
• Failure to follow appropriate safety
precautions may result in death or serious
injury.
Required Tools and Materials
• Flow Meter
• -10 ORFS Test Hose 2000 psi (138 bar)
TN1862
2
1
5
TN1359
4
3
TN2121
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