Procedure for Cutting Deck Circuit Pressure Test
1.Make sure hydraulic oil is at normal operating tem- perature by operating the machine for approximately 10 minutes. Make sure the hydraulic tank is full.
2.Park machine on a level surface with the cutting deck lowered and off. Make sure engine is off and the parking brake is engaged.
CAUTION
Prevent personal injury and/or damage to equip- ment. Read all WARNINGS, CAUTIONS and Pre- cautions for Hydraulic Testing at the beginning of this section.
3.Install 5000 PSI (350 bar) pressure gauge with hy- draulic hose attached to deck manifold test port for the deck to be tested (Fig. 31, 32 and 33).
4.After installing pressure gauge, start engine and run at idle speed. Check for hydraulic leakage and correct before proceeding with test.
CAUTION
Keep away from deck during test to prevent per- sonal injury from the cutting blades.
5.Operate engine at full speed (2870 RPM). Engage the cutting deck.
6.Watch pressure gauge carefully while mowing with the machine.
7.Cutting deck circuit pressure should be as follows and will vary depending on mowing conditions:
LH Wing Deck: 1000 to 3000 PSI (69 to 207 bar)
Center Deck: 1000 to 3000 PSI (69 to 207 bar)
RH Wing Deck: 1000 to 2000 PSI (69 to 137 bar)
8.Disengage cutting deck and shut off engine. Record test results.
9.When testing is completed, disconnect test gauge with hose from manifold test port.
2
1
Figure 31
1.Center deck hydraulic manifold
2.Center deck circuit pressure test port
System
Hydraulic
1
Figure 32
1. Right wing deck circuit pressure test port
1
Figure 33
1. Left wing deck circuit pressure test port
Groundsmaster | Page 4 | Hydraulic System |
