Procedure for Cutting Deck Circuit Pressure Test:
Make sure hydraulic oil is at normal operating tem-
1.
1
perature.
2.
lowered and off. Make sure engine is off and the parking
brake is engaged.
Parkmachineonalevelsurfacewiththecuttingunits
2
3.
Read Precautions for Hydraulic Testing.
Figure 20
WARNING
1.
Hydraulic manifold
2.
Manifold port (G1)
Before disconnecting or performing any work
on the hydraulic system, all pressure in the
system must be relieved. See Relieving Hy-
draulic System Pressure in the General Infor-
mation section.
1
4.
5.
Remove plug from hydraulic manifold port (G1).
Install hydraulic pressure gauge with hydraulic hose
attached to the manifold port (G1).
CAUTION
2
Keepawayfromdecksduringtesttopreventper-
sonal injury from the cutting blades.
Figure 21
2.
6.
50
Start engine and move throttle to full speed (3050 +
RPM). Engage the cutting units.
1.
Hydraulic manifold
Manifold port (G1)
7.
Watch pressure gauge carefully while mowing with
the machine.
8.
PSI and will vary depending on mowing conditions.
Cutting circuit pressure should be from 1000 to1500
9.
Disengage cuttingunits.Shutoffengine.Recordtest
results.
10.Relieve
hydraulic system pressure (See Relieving
Hydraulic System Pressure in the General Information
section). Disconnect pressure gauge with hose from
manifold block. Reconnect plug to the hydraulic man-
ifold port (G1).
Groundsmaster 3505--D
Page 4 -- 35
Hydraulic System
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