MAINTENANCE PROCEDURES
AB18EJ&18HJ Maintenance Manual 5-27 © Oct 2020
3. Move and hold the emergency power switch on the
ground controller.
4. Move the corresponding boom function switch on
the platform controller to lower the platform.
B-23 Test Tilt Protection
Figure 5-22
1. Turn the Ground/Platform select switch to the
ground control position.
2. Pull out the emergency stop button on the ground
controller to the ON position.
3. With the machine in non-operating position, flip the
level switch to exceed 5°in X (left-to-right)/Y (front-
to-back) direction.
4. The tilt alarm sounds and the chassis tilt indicator
light flashes, no fuctions are restricted.
5. With the machine in operating position, flip the level
switch to exceed 5°in X (left-to-right)/Y (front-to-
back) direction.
6. The tilt alarm sounds and the chassis tilt indicator
light flashes, some functions are restricted, but the
boom retracting, lowering and turntable rotating are
allowed.
7. With the machine in non-operating position, place
two wooden blocks under the two wheels on the left
or right side of the machine, and then drive the
machine onto the two wooden blocks. The wooden
block should measure 750×250×218mm (29.5
in.×9.8 in.×8.6 in.).
8. The tilt alarm sounds and the the chassis tilt
indicator light flashes, no functions are restricted.
9. Drive the machine off, and remove the wooden
blocks.
10. With the machine in operating position, place two
wooden blocks under the two wheels on the front or
back side of the machine, and then drive the
machine onto the two wooden blocks. The wooden
block should measure 750×250×262mm (29.5
in.×9.8 in.×10.3 in.).
11. The tilt alarm sounds and the chassis tilt indicator
light flashes, some functions are restricted, but the
boom retracting, lowering and turntable rotating are
allowed.
12. Retract and lower the boom, drive off the machine
in non-operating position and remove the wooden
blocks.
CHECKLIST C
PROCEDURES
C-1 Replace Fuel Filter Element
(AB18HJ only)
Regularly replacing fuel filter element is vital to good
engine performance and extending service life. A dirty
or blocked filter may fail the engine and continued use
may result in component damage. The flter element
should be replaced more often if operating the mahine
in hostile environment.
EXPLSION AND FIRE HAZARD
• Diesel is an inflammable material.
This procedure must be performed
outdoors in well-vented area and far
away from flames.
• Ensure that a conforming fire
extinguisher is readily accessible
when performing this inspection
procedure.
NOTICE
Shut off the engine before inspection.
1. Open the right side cover of turntable and locate the
fuel filter.
2. Disconnect and cap the line between fuel tank and
fuel filter.
3. Remove the fuel fiter element.
4. Clean the inside of flter head.
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