Toro Groundmaster 31900, Service Manual, Page: 127 / 355

If cutting unit lift operation is unsatisfactory, check lift control cartridge valve
(SV2) and/or lift cylinders; refer to
Cartridge Valve Service (page 5–93) and/or
Testing the Steering and Lift Circuit – Lift Cylinder Internal Leakage (page 5–47) .
Special Equipment Required:
•
Flow meter with pressure gauge that has at least a 16 L/minute (5
gallons/minute) capacity.
•
2 Hydraulic Hoses
Test Procedure
1. Park the machine on a level surface, lower the cutting unit (or attachment),
engage the parking brake, and set the key switch to the O
FF
position.
2. Read and adhere to the information provided in Testing the Hydraulic System
(page 5–22) .
3. Ensure that the traction pedal is correctly adjusted for the N
EUTRAL
position;
refer to Adjusting the Traction System for Neutral (page 5–50) .
4. Clean the fittings and the hydraulic tube at the gear pump shown; refer to
Figure 38 .
g299959
Figure 38
1. Hydraulic pump (P2) 2. Hydraulic tube
5. Remove the steering cover fasteners and raise the steering cover.
6. Clean the fittings and the hydraulic tube at the steering control valve P port
shown; refer to Figure 39 .
Groundsmaster ® 3200, 3300 and 3310 Page 5–41 Hydraulic System: Testing the Hydraulic System
19240SL Rev A