Test The Key Switches - Genie S-105 Service Manual

June 2011
REV E
B-13

Test the Key Switches

Genie requires that this procedure be performed
every 250 hours or quarterly, whichever comes
first.
Proper key switch action and response is essential
to safe machine operation. Failure of either key
switch to function properly could cause a
hazardous operating situation.
There are two key switches on the machine - the
Main key switch and the Service Bypass/Recovery
key switch.
The Main key switch controls machine operation
from the ground or platform controls.
When the Service Bypass/Recovery key switch is
turned to the service bypass position, the primary
boom can be raised while the axles are retracted.
This feature of the machine is especially helpful for
storage purposes or when loading the machine for
transport.
Note: When the boom is raised with the axles
retracted, the boom cannot be rotated past either
circle-end wheel.
When the Service Bypass/Recovery key switch is
turned and held to the recovery position, the
auxiliary power units will turn on and fully retract the
boom and then lower the boom. This feature of the
machine is especially helpful if the operator in the
platform cannot lower the boom, if the platform
controls become inoperative or for returning the
machine to a safe position when the safety
switches have been tripped.
Note: Perform this procedure with the axles
retracted and the boom in the stowed position.
Part No. 102916
Section 3 • Scheduled Maintenance Procedures
1 Open the ground controls side turntable side
cover.
2 Pull out the red Emergency Stop button to the
on position at both the ground and platform
controls.
3 At the ground controls, turn the service
bypass/recovery key switch to the run position.
4 Turn the main key switch to ground control, start
the engine and then turn the key switch to
platform control.
5 Check any machine function from the ground
controls.
Result: The machine functions should not
operate.
6 Turn the main key switch to ground control.
7 Check any machine function from the platform
controls.
Result: The machine functions should not
operate.
8 Turn the main key switch to the off position.
Result: The engine should stop and no functions
should operate.
9 Turn the main key switch to ground control and
start the engine.
S-100 • S-105 • S-120 • S-125
CHECKLIST B PROCEDURES
STOP
00000
Run
Service
Bypass
Recovery
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