Procedure for Cutting Deck Circuit Pressure Test
Make sure hydraulic oil is at normal operating tem-
1.
perature by operating the machine under load for
approximately ten (10) minutes. Make sure the hydrau-
lic tank is full.
2
2.
lowered and off. Make sure engine is off and the parking
brake is engaged.
Parkmachineonalevelsurfacewiththecuttingdeck
CAUTION
1
Figure 37
Center deck hydraulic manifold
Center deck circuit pressure test port
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.
2.
3.
draulic hose attached to PTO manifold test port for the
deck to be tested (Fig. 37, 38 or 39).
Install 5000 PSI (350 bar) pressure gauge with hy-
4.
at idle speed. Check for hydraulic leakage at pressure
gauge location and correct before proceeding with test.
After installing pressure gauge, start engine and run
1
CAUTION
Cutting deck blades will rotate with PTO switch
inONposition. Keepawayfromcutting deckdur-
ing test to prevent personal injury from rotating
blades. Do not stand in front of the machine.
Figure 38
1.
Right wing deck circuit pressure test port
5.
(2870
Move throttle so engine is running at high idle speed
RPM). Engage the cutting deck.
6.
Watch pressure gauge carefully while mowing with
the machine.
7.
and will vary depending on mowing conditions:
Cutting deck circuit pressure should be as follows
1
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
Figure 39
with hose from manifold test port.
1. Left wing deck circuit pressure test port
Groundsmaster 4100--D/4110--D
Page 4 -- 51
Hydraulic System
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