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Groundsmaster 4000--D/4010--D 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 under load for
approximately ten (10) minutes. Make sure the hydrau-
lic 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 to manifold test port for the deck
to be tested (Figs. 38, 39 and 40).
CAUTION
Cutting deck blades will rotate when lowered
with PTO switch in ON position. Keep away from
cutting decks during test to prevent personal in-
jury from rotating blades. Do not stand in front of
the machine.
4. Start engine and move throttle to high idle speed
(2870 RPM). Engage the cutting decks.
5. Watch pressure gauge carefully while mowing with
the machine.
6. Cutting deck circuit pressure should be as follows
and will vary depending on mowing conditions:
LH Deck: 1000 to 3000 PSI (69 to 207 bar)
Front Deck: 1000 to 3000 PSI (69 to 2 07 bar)
RH Deck: 1000 to 2000 PSI (69 to 137 bar)
7. Disengage cutting decks. Shut off engine and record
test results.
8. When testing is completed, disconnect pressure
gauge with hose from manifold test port.
1. Front deck circuit pressure test port
Figure 38
1
1. Right deck circuit pressure test port
Figure 39
1
1. Left deck circuit pressure test port
Figure 40
1
Hydraulic
System