#
Functional
Failure
Possible
Cause(s)
Suspect Component(s)
Location
(page refer-
ence)
Corrective Action
7
Unit only
moves in
the down
direction
Handle failure
Handle mother board failure
Replace handle mother
board
Linear transducer failure
Replace linear transducer
Coil cord or
pendant
cable
Broken conductor
Repair or replace coil cord
or pendant cable
Actuator
wiring
Broken conductor
Repair or replace cable
Up limit
switch
Limit switch failure
Replace up limit switch
Operator
error
Falsely programmed upper virtual limit,
under dual VL setup
Check / reset virtual limits
Falsely activating a custom feature
that stops all upward movement
Avoid this condition
Float Mode: loadcell maximum capac-
ity reached
Decrease load
8
Load contin-
ues to drop
after handle
is released
Handle linear
transducer
Linear transducer failure
Replace linear transducer
Linear transducer adjustment
Adjust linear transducer
Handle
mother
PCB
Damaged / defective handle mother
board
Replace slide or pendant
handle mother board
Handle
operator
present
sensor
Damaged operator present sensor:
falsely keep unit running
Replace operator present
sensor
Motor brake
Damaged / defective motor brake
Replace motor
Operation
Custom feature: input to Auto Move
falsely turned on
Avoid this condition
9
Jog
switches
not
functioning
Actuator PCB
Damaged / defective actuator PCB
Replace actuator main PCB
Drive module
Damaged / defective drive module
Replace ACOPOS drive
module
Module cable
Damaged / defective drive cable
Replace the cable
Cable
connection
Loose or disconnected cable (80163)
Replace motor drive cable
10
Unit moves
noticeably
faster in
one direc-
tion than
the other
Handle linear
transducer
Linear transducer failure
Replace linear transducer
11
Float Mode
is not
smooth and/
or weight
readout is
inaccurate
Coil cord
wear
ring is bind-
ing inside
actuator
opening
Coil cord bracket is bent or out of
position
Replace or reform coil cord
bracket
G-Force® & Easy Arm Q2 - iQ2 Service Manual
Gorbel Inc.
Revised 5/21
6 - 5
