Groundsmaster 3500--D Hydraulic System (Rev. D)Page 4 -- 7
Check Hydraulic System Fluid
1. Position machine on a level surface, lower cutting
units, and stop engine.
2. Clean area around filler neck and cap of the hydraulic
tank. Remove cap from the filler neck.
3. Remove dipstick from the filler neck and wipe it with
a clean rag. Insert dipstick into the filler neck; then re-
move it and check level of the fluid. Fluid level should be
within 1/4 inch (6 mm) of the mark on the dipstick.
4. If level is low, add appropriate fluid to raise the level
to full mark. DO NOT OVERFILL.
5. Install dipstick and cap onto the filler neck.
1. Hydraulic Tank 2. Cap
Figure 8
2
1
Relieving Hydraulic System Pressure
Before disconnecting or performing any work on the
Groundsmaster 3500--D hydraulic system, all pressure
in the hydraulic system must be relieved. Park machine
on a level surface with the cutting units lowered and off.
Turn key switch to OFF and allow engine to stop.
To relieve hydraulic pressure in traction circuit, move
traction lever to both forward and reverse directions. To
relieve hydraulic pressure in steering and lift circuits, ro-
tate steering wheel in both directions.
To relieve cutting unit system pressure, turn key switch
to ON (engine not running). Move PTO switch to engage
which will energize the solenoid valve on hydraulic man-
ifold to relieve circuit pressure. Move PTO switch to dis-
engage, return key switch to OFF and remove key from
the ignition switch.
NOTE: Moving steering wheel with engine off may un-
seat implement relief valve. If steering or lift circuits ap-
pear weak or inoperative after machine is returned to
service, repeat relieving hydraulic system pressure pro-
cedure.
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