Test The Safety Envelope And Circuits - Genie S-105 Service Manual

Section 3 • Scheduled Maintenance Procedures
B-16
Test the Safety Envelope and
Circuits
Genie requires that this procedure be performed
every 250 hours or quarterly, whichever comes
first.
Testing the machine safety envelope is critical to
safe machine operation. If the boom is allowed to
operate when a safety switch is not functioning
correctly, the machine stability is compromised and
may tip over.
Note: Refer to Repair Section 8-2, Limit Switch and
Level Sensor Locations for diagram showing the
location of switches in this procedure.
1 Start the engine from the ground controls.
2 Raise the boom to approximately 60°.
Note: For S-100 or S-105 models, proceed to step
30.
101 feet / 30.8 m Length Safety Switch, LSB2RS:
3 Extend the boom to more than 80 feet / 24.4 m.
Machines before SN 2710:
4 Proceed to step 8.
Machines after SN 2709:
5 Push in the red Emergency Stop button to the
off position.
6 Plug in the LSB2RS test jumper between the
lower limit switch and the function manifold (J2
and J4 connectors on the ground control box).
3 - 32
7 Pull out the red Emergency Stop button to the
on position and restart the engine.
8 Disconnect the 68° proximity switch LSB14AO
and install a wire jumper between pin 3 and pin
4 of the Deutsch connector.
Result: ">68
display screen at the ground controls.
9 Activate the function enable/high RPM button
and extend the boom to 101 feet / 30.8 m.
Result: The engine should stop and the boom
extend function should be disabled.
Result: If the engine does not stop and the
boom continues to extend, the LSB2RS switch
is out of adjustment or the wiring circuit is faulty
and will need to be replaced or repaired. See
Repair Section.
10 Using auxiliary power, retract the boom until the
boom is extended to approximately 95 feet
/ 29 m.
11 Remove the wire jumper installed in step 8 and
connect the Deutsch connector to LSB14AO.
S-100 • S-105 • S-120 • S-125
" should be present on the
DEG
Bodily injury hazard. If the boom
extends to more than 101 feet /
30.8 m without stopping the
engine, stop immediately and
retract the boom until the boom is
extended to less than 100 feet /
30.5 m. Failure to retract the boom
could result in death or serious
injury.
Part No. 102916
June 2011
REV E