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Groundsmaster 5900/5910 Hydraulic SystemPage 4 -- 51
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
decks lowered and off. Make sure engine is off and the
parking brake is applied.
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 todeck manifoldtest portG forthe
deck to be tested (Fig. 33, 34 and 35).
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 cutting decks during test to pre-
vent personal injury from t he cutting blades.
5. Siton seat and operate theengineatfullspeed(2750
RPM). Release parking brake and engage the c utting
decks.
6. Watch pressure gauge carefully while mowing with
the machine.
7. Cutting deck circuit pressure should be from 1000 to
3200 PSI (69 to 220 bar) (1000 to 2100 PSI (69 to 144
bar) for RH wing deck) and will vary depending on
mowing conditions.
8. Disengagecutting decksandshutoffengine.Record
test results.
9. Disconnect pressure gauge with hose from manifold
test port.
1. Center deck circuit pressure test port G
Figure 33
1
1. Right wing deck circuit pressure test port G
Figure 34
1
1. Left wing deck circuit pressure test port G
Figure 35
1
Hydraulic
System