Maintenance Manual November 2021
Annual Maintenance Procedures
54 Scissor Lifts Part No. 1305686GT
7 Using a volt meter, check for voltage by
connecting the positive lead to relay K11,
terminal 87 and connecting the negative lead
to the ground strip terminal.
Result: The volt meter should read 0V DC.
Result: The volt meter reads 12V DC or
greater. Check the green wire on terminal
86 for voltage. If yes, the drive controller is
activated or the ECU needs to be replaced.
8 Press the drive speed button and select high
speed drive mode.
Result: The green LED should go off.
Result: The green LED stays on.
9 Raise the platform until the green LED comes
on.
10 Using a volt meter, check for voltage by
connecting the positive lead to relay K11,
terminal 30 and connecting the negative lead
to the ground strip terminal.
Result: The volt meter should read 0V DC.
Result: The volt meter reads 12V DC or
greater.
11 Using a volt meter, check for voltage by
connecting the positive lead to relay K11,
terminal 87 and connecting the negative lead
to the ground strip terminal.
Result: The volt meter should read 0V DC.
Result: The volt meter reads 12V DC or
greater. Check the relay K11 for an internal
short to power.
12 Lower the platform to the stowed position.
Oscillate Float Test
Note: The following procedure will require two
people.
13 Using a volt meter, check for voltage by
connecting the positive lead to terminals D2,
D3, D4 and D5. Connect the negative lead to
the ground strip terminal. Slowly move the
drive controller just off center.
Crushing Hazard. Stay clear of
the machine when performing
this procedure.
Movement of the
machine could result in death or
serious injury.
Result: The volt meter should read 12V DC or
greater.
Result: The volt meter reads 0V DC. Do not
proceed. Contact Genie Product Support for
assistance.
Test the Oscillating Axle Limit Switches
14 Using the jumper wire, jump from relay K12,
terminal 87A to terminal D3 below the white
wire.
Result: The right steer end oscillate cylinder
will extend causing the machine to tilt towards
you. This simulates closing the left rear limit
switch causing the right oscillate cylinder to
extend.
Result: No movement. Verify there is voltage
on the jumper wire. Check for voltage on relay
K12, terminal 30.
Oscillate operates in the incorrect direction.
Do not proceed. Contact Genie Product
Support.
Note: Remove the jumper wire from relay K12 and
terminal D3 after the limit switch activates the
oscillate in the opposite direction.
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