Toro Groundsmaster 4500-D Series Service Manual page 166

Procedure for Cutting Deck Circuit Pressure Test (continued)
Hydraulic System: Testing
5. After installing pressure gauge, start engine and run at low idle speed. Check
for hydraulic leakage and correct before proceeding with test.
Keep away from decks during test to prevent personal injury from
the cutting blades.
6. Increase engine speed to high idle speed. Engage the cutting decks.
#6 Deck
(GM4700)
g308386
7. Watch pressure gauge carefully while mowing with the machine.
8. Cutting deck circuit pressure should be from 69 to 241 bar (1000 to 3500
PSI) and will vary depending on mowing conditions.
9. Disengage cutting decks. Shut off engine. Record test results.
10. After testing is complete, disconnect pressure gauge from manifold test port.
11. Lower and secure hood.
CAUTION
#4 Deck #1 Deck
#2 #3
Deck Deck
Figure 75
CUTTING DECK LOCATIONS
Page 5–64
#5 Deck
#7 Deck
(GM4700)
Groundsmaster ® 4500-D/4700-D
19245SL Rev A