Toro Groundsmaster 3280-D Service Manual page 145

Test Procedure (continued)
Groundsmaster ® 3280-D/3320
05138SL Rev B
12. Record the reading on the pressure gauge (under load). The charge
pressure (under load) should not drop more than 20% when compared to
charge pressure (without load) recorded in step 10.
If specifications are not met, perform the hydraulic pump flow and traction
relief pressure test; refer to
Flow and Relief Pressure (Machine Serial Numbers above 316000000)
(page 5–62).
13. Release the traction pedal, move the throttle to low speed position, and shut
off the engine.
14. After you complete the charge pressure testing, ensure that the engine is
not running and then release hydraulic system pressure; refer to
Pressure from the Hydraulic System (page
pressure gauge, install the hydraulic tube to the fitting.
15. Install the seat plate, lower and secure the operator seat.
16. Start the engine, check for hydraulic-fluid leaks, repair any leaks as required,
and fill the hydraulic reservoir (front axle) with the correct quantity of new
hydraulic fluid before returning the machine to service.
Testing the Traction Circuit–Hydraulic Pump
Page 5–61 Hydraulic System: Testing the Hydraulic System
Releasing
5–6). Remove the tee fitting and