Toro Groundsmaster 4300-D Service Manual page 136

Test Procedure (continued)
Hydraulic System: Testing the Hydraulic System
D. The system pressure should be approximately 6,900 kPa (1,000 psi) as
the relief valve lifts.
E. Return the steering wheel to the N
and record the test results.
6. If the specification is not met, repair or replace the steering control valve;
refer to Servicing the Steering Control Valve (page
7. After you complete the testing, shut off the engine, and then release hydraulic
system pressure; refer to
(page 4–6). Disconnect the pressure gauge, and connect removed hydraulic
hose to the steering cylinder.
8. Start the engine, check for hydraulic-fluid leaks, repair any leaks as required,
and fill the hydraulic tank with the correct quantity of new hydraulic fluid
before returning the machine to service.
EUTRAL
Releasing Pressure from the Hydraulic System
Page 4–74
position, shut off the engine,
4–154).
Groundsmaster
16226SL Rev C
® 4300-D