Platform Down Function Inoperative - Genie GS-2046 Service Manual

Service Manual - First Edition
Platform Down
Function
Inoperative,
GS-2046 &
GS-2646
Be sure all other
functions operate
normally.
Be sure the circuit
breaker and fuse are
not tripped or blown.
Be sure the batteries
are properly connected.
Be sure the batteries
are fully charged.
Part No. 48339
With key switch in
platform position and the
platform raised slightly
and both Emergency
Stop buttons pulled out
to the on position at both
the ground and platform
controls and the lift/drive
switch in the lift position,
activate the controller in
the down direction and
check to see if the error
indicator light is on.
light is not on
Continued on the next
page.
Genie GS-2046 & Genie GS-2646 & Genie GS-3246
Section 5 - Troubleshooting Flow Charts
With the platform raised
and the safety arm
installed, label and
light is
disconnect the wires
on
from the coil on the
platform lowering valve
(item Q) at the platform
lift cylinder and check
the resistance. See
Repair Section.
23 to 25 ohms
Check continuity from
the brown ground wire
at the valve coil to
ground.
continuity
With the platform raised
and the safety arm
removed, pull the
manual platform
lowering handle at the
ground controls.
platform does
not lower
Check for mechanical
restrictions keeping
platform from lowering
OR repair or replace the
platform lowering valve
cartridge (item Q) OR
0.059" orifice inside the
cylinder is plugged OR
repair or replace lift
cylinder OR consult
Genie Industries Service
Department.
Chart 8
0 or
infinite
Replace platform
ohms
lowering valve coil
(item Q).
no
Repair open in brown
continuity
ground wire circuit from
the platform lowering
valve coil (item H) to
ground.
Repair open in white
platform
wire (B6-down coil) from
lowers
the platform lowering
valve coil (item Q) to the
ECM OR replace the
ECM OR repair or
replace the platform
lowering valve cartridge
(item Q) OR consult
Genie Industries Service
Department.
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