Groundsmaster 4100--D Hydraulic SystemPage 4 -- 29
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 w ith the cutting
decks lowered and off. Make sure engine is off and the
parking brake is engaged.
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 test pressure gauge with hydraulic hose at-
tached to deck manifold test port for the deck to be
tested (Fig. 22, 23, and 24).
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 decks during test to prevent per-
sonal injury from the cutting blades.
5. Operate engine at full speed (2730 + 30 RPM).En-
gage the cutting decks.
6. Watch pressure gauge carefully while mowing with
the machine.
7. Cutting deck circuit pressure should be from 1000 to
3000 PSI (1000 to 2000 PSI for RH wing deck) and will
vary depending on mowing conditions.
8. Disengage cutting decks and shut off engine. Record
test results.
9. Disconnect test gauge with hose from manifold test
port.
1. Center deck hydraulic manifold
2. Center deck circuit pressure test port
Figure 22
1
2
1. Right wing deck circuit pressure test port
Figure 23
1
1. Left wing deck circuit pressure test port
Figure 24
1
Hydraulic
System
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