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March 2022
Service Manual
Checklist B Procedures
Part No. 1312899GT
GR
™
-20J • GR
™
-26J
25
6 Press and hold the function enable switch on
the joystick. Move the joystick off center, hold
for a moment and then release it. Move the
joystick off center in the opposite direction,
hold for a moment and then release it.
Result: The alarm should sound.
7 Press the drive function select button.
8 Press and hold the function enable switch on
the joystick. Move the joystick off center, hold
for a moment and then release it. Move the
joystick off center in the opposite direction,
hold for a moment and then release it.
Result: The alarm should sound.
9 Press and hold the function enable switch on
the joystick. Press and hold the thumb rocker
switch for a moment to the left position and
then release it. Press and hold the thumb
rocker switch for a moment to the right
position and then release it.
Result: The alarm should sound.
B-9 Visual I nspec tion of th e Hyd raulic Oil
B-9
Visual Inspection of the Hydraulic
Oil
Genie specifications require that this procedure be
performed every 250 hours or quarterly, whichever
comes first.
Replacement or testing of the hydraulic oil is
essential for good machine performance and
service life. Dirty oil and a clogged suction strainer
may cause the machine to perform poorly and
continued use may cause component damage.
Extremely dirty conditions may require oil changes
to be performed more often. For hydraulic oil
specifications, Refer to Specifications,
Hydraulic
Specifications
.
Note: Before replacing the hydraulic oil, the oil
may be tested by an oil distributor for specific
levels of contamination to verify that changing the
oil is necessary. Replace the oil when it fails the
test. Refer to Maintenance Procedure,
Test or
Replace the Hydraulic Oil
.
Summary of Contents for Genie GR-20J
Page 77: ...March 2022 Service Manual Function Manifold Part No 1312899GT GR 20J GR 26J 65 ...
Page 113: ...March 2022 Service Manual 101 Electrica l Schemati cs Electrical Schematic GRJ from GRJL 2298 ...
Page 116: ...Service Manual March 2022 104 Electrical Schematic GRJ from GRJL 2298 ...
Page 117: ...March 2022 Service Manual 105 GCON LED Panel GRJ from GRJL 2298 ...
Page 120: ...Service Manual March 2022 108 Temperature Sensor Harness GRJ from GRJL 2298 ...
Page 121: ...March 2022 Service Manual 109 Options GRJ from GRJL 2298 ...
Page 127: ......