Toro Groundsmaster 5900 Series Service Manual page 140

Procedure for Traction Circuit Charge Pressure Test (continued)
Hydraulic System: Testing
g287734
1. Steering/lift manifold
1
g287735
1. Piston pump
4. Connect a 70 Bar (1000 PSI) pressure gauge with hydraulic hose attached to
test fitting on steering/deck lift manifold port CH1
hose to allow operator to view the gauge.
5. After installing pressure gauge, start engine and run at low idle speed. Check
for hydraulic leakage at tester connections and correct before proceeding
with test.
6. Make sure hydraulic oil is at normal operating temperature (54 to 66 ºC (130
to 150 ºF)) by operating the machine for approximately ten (10) minutes.
7. Operate the engine at high idle speed (2530 RPM) with no load on the
hydraulic system.
GAUGE READING TO BE: 25 to 27 bar (370 to 390 PSI)
8. Stop engine and record test results.
Figure 49
2. Port CH1 test fitting
2
Figure 50
2. Charge relief valve
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1
2
(Figure 49). Route gauge
Groundsmaster ® 5900 & 5910
16227SL Rev B