Inspections
16 Straighten the wheels.
17 Push the left side of the steer selector switch to
select crab steer.
18 Check the steering operation by turning the
steering wheel approximately ¼ turn in each
direction.
Result: The front wheels and rear wheels should
turn in the same direction as the steering wheel.
Test the Transmission and Brakes
19 Be sure the boom is fully lowered and
retracted.
20 Step on the service brake pedal.
21 Move the transmission control lever to forward.
Slowly let up on the service brake pedal. As
soon as the machine starts to move, push the
service brake pedal.
Result: The machine should move forward,
then come to an abrupt stop.
22 Move the transmission control lever to reverse.
Slowly let up on the service brake pedal. As
soon as the machine starts to move, push the
service brake pedal.
Result: The machine should move in reverse,
then come to an abrupt stop. The back-up
alarm should sound when the transmission
control lever is in reverse.
23 Move the transmission control lever to neutral.
24 Pull the parking brake lever upward.
Result: The parking brake indicator light should
come on, indicating the parking brake is on.
25 Move the transmission control lever forward,
then in reverse.
Result: The machine should not move.
26 Push the parking brake lever downward. The
parking brake is off when the indicator light is
off.
Test the Outiriggers
27 Using the buttons
55, 56, 57
and
58,
fully lower
and raise the stabilizers.
Result: The stabilizers should operate moothly.
28 Raise the boom over 10°.
Result: The stabilizers should not work.
Test the Sway Control
29 Using the buttons
52
and
53, sway the
machine
Result: The machine should sway moothly.
30 Raise the boom over 10°.
Result: The machine shouldn’t sway.
Test the Road Lights
31 Verify that all lights are functional.
58 GTH-4518ER - GTH-4020ER - GTH-6025ER Part No. 57.0009.0404
Operator’s Manual
First Edition - Third Printing
Summary of Contents for Genie GTH-4020 ER
Page 188: ......