Procedure for Cutting Deck Circuit Pressure Test
Make sure hydraulic oil is at normal operating tem-
1.
perature by operating the machine for approximately 10
minutes. Make sure the hydraulic tank is full.
2.
decks lowered and off. Make sure engine is off and the
parking brake is applied.
Park machine on a level surface with the cutting
1
CAUTION
Figure 33
Center deck circuit pressure test port G
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.
1.
3.
draulichoseattachedtodeckmanifoldtestportGforthe
deck to be tested (Fig. 33, 34 and 35).
Install 5000 PSI (350 Bar) pressure gauge with hy-
1
4.
at idle speed. Check for hydraulic leakage and correct
before proceeding with test.
After installing pressure gauge, start engine and run
CAUTION
Figure 34
1.
Right wing deck circuit pressure test port G
Keep away from cutting decks during test to pre-
vent personal injury from the cutting blades.
5.
RPM). Release parking brake and engage the cutting
Sitonseatandoperatetheengineatfullspeed(2750
1
decks.
6.
Watch pressure gauge carefully while mowing with
the machine.
7.
3200
Cutting deck circuit pressure should be from 1000 to
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.
test results.
Disengagecuttingdecksandshutoffengine.Record
Figure 35
Left wing deck circuit pressure test port G
1.
9.
Disconnect pressure gauge with hose from manifold
test port.
Groundsmaster 5900/5910
Page 4 -- 51
Hydraulic System
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