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 engaged.
Park machine on a level surface with the cutting
CAUTION
2
1
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.
Figure 22
1.
2.
Center deck hydraulic manifold
Center deck circuit pressure test port
3.
tached to deck manifold test port for the deck to be
tested (Fig. 22, 23, and 24).
Install test pressure gauge with hydraulic hose at-
4.
at idle speed. Check for hydraulic leakage and correct
before proceeding with test.
After installing pressure gauge, start engine and run
1
CAUTION
Keepawayfromdecksduringtesttopreventper-
sonal injury from the cutting blades.
5.
gage the cutting decks.
Operate engine at full speed (2730 + 30 RPM). En-
Figure 23
1.
Right wing deck circuit pressure test port
6.
Watch pressure gauge carefully while mowing with
the machine.
7.
3000
Cutting deck circuit pressure should be from 1000 to
PSI (1000 to 2000 PSI for RH wing deck) and will
vary depending on mowing conditions.
8.
Disengagecuttingdecksandshutoffengine.Record
test results.
9.
Disconnect test gauge with hose from manifold test
port.
1
Figure 24
1.
Left wing deck circuit pressure test port
Groundsmaster 4100--D
Page 4 -- 29
Hydraulic System
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