Section 3 • Scheduled Maintenance Procedures
REV B
November 2005
Part No. 84700
GR-12 • GR-15 • GR-20
3 - 21
CHECKLIST
B
PROCEDURES
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 motion alarm should sound when
the joystick is moved off center in either
direction.
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 motion alarm should sound when
the rocker switch is moved off center in either
direction.
B-17
Perform Hydraulic Oil Analysis
Replacement or testing of the hydraulic oil is
essential for good machine performance and
service life. Dirty oil 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.
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. If
the hydraulic oil is not replaced
at the two year inspection, test
the oil quarterly. Replace the oil
when it fails the test. See E-1,
Test or Replace the Hydraulic Oil.
