CIRCUIT
BREAKER
20 A
SELF
RESTING
BATTER
Y
12 V
SHOP
BATTER
Y
APPLY KNOWN GOOD POWER
DIRECT TO MOTOR
APPLY KNOWN GOOD
POWER DIRECT
TO PLUG ON LIFT
OPERATE HAND
CONTROLLER
APPLY KNOWN GOOD
POWER DIRECT
THRU VEHICLE HARNESS
OPERATE HAND
CONTROLLER
DID
MOTOR
RUN
?
DID
MOTOR
RUN
?
DID
MOTOR
RUN
?
YES
YES
YES
NO
NO
NO
REPLACE
MOTOR
INSPECT /
REPLACE
LIFT WIRING
INSPECT or
REPLACE
VEHICLE
HARNESS
SHOP
BATTER
Y
BATTE
RY
12 V
WIRIN
G IN
LIFT
WIRIN
G IN LIF
T
SHOP
BATTER
Y
BATTER
Y
BATTER
Y
12 V
12 V
REPLACE
VEHICLE
BATTERY
BATTER
Y
12 V
HARMAR STRONGLY RECOMMENDS TROUBLESHOOTING
ELECTRICAL PROBLEMS WITH KNOW GOOD / FULLY CHARGED
12 V AUTOMOTIVE BATTERY or KNOW GOOD / FULLY
CHARGED POWER CHAIR/SCOOTER BATTERY
BAD ELECTRICAL CONNECTIONS / CIRCUIT BREAKER
PROCEDURE:
CHECK / CLEAN
ALL
CONNECTIONS THAT MIGHT BE LOOSE OR DIRTY
THIS IS THE #1 CAUSE OF A POORLY PERFORMING LIFT.
THE MOTOR ON THE LIFT REQUIRES QUALITY ELECTRICAL CONNECTIONS
TO OPERATE AT FULL CAPACITY. ANY BREAK IN THE WIRING WILL
SLOW DOWN THE MOTOR, OR CAUSE IT TO OPERATE INTERMITTENTLY.
WHICH IN TURN WILL PREMATURELY DETERIORATE THE MOTOR.
THE LIFT’S VEHICLE POWER HARNESS RUNNING THROUGH OR UNDER
THE VEHICLE IS SUBJECT TO ROAD DEBRIS, AND RUBBING AGAINST THE
VEHICLE’S FRAME, CAUSING A SHORT. INSPECT THE FULL LENGTH
OF THE HARNESS TO BE SURE THE JACKET OF INSULATION IS NOT TORN.
VOLTAGE
METER
AUTOMOTIVE
TEST LIGHT
THESE INSTRUMENTS WILL DETECT VOLTAGE, BUT MAY NOT
INDICATE A TEAR OR POOR CONNECTION IN THE WIRING
EXAMPLE:
LIFT WILL NOT OPERATE,
OPERATES SLOWLY, or OPERATES INTERMITTENTLY.
PROBLEM:
PROBLEM:
LIFTING STRAP OPERATES IN REVERSE
PROBLEM:
SCOOTER OR CHAIR TIPS FRONT OR BACK WHILE BEING LIFTED
PROBLEM:
LIFTING ARM IS HARD TO ROTATE
REASON:
BE CAREFUL WHEN TROUBLESHOOTING WITH A TEST LIGHT, OR
VOLTAGE METER. THEY MAY GIVE FALSE INDICATION AS SHOWN
ABOVE. THEY WILL ONLY INDICATE THERE IS
SOME
WIRE
CONNECTION--NOT NECESSARILY--ENOUGH.
BE CAREFUL WHEN TROUBLESHOOTING WITH A TEST LIGHT, OR
VOLTAGE METER. THEY MAY GIVE FALSE INDICATIONS
THE CIRCUIT BREAKER IS LOCATED ABOUT 6”
FROM THE CONNECTIONS TO THE VEHICLE’S
BATTERY. THE BREAKER WILL SELF RESET IF
OVER-LOADED. HOWEVER, VERIFY
(
w/ OHM METER or TEST LIGHT
)
THE BREAKER IS FUNCTIONING, OR
REPLACE IT WITH A NEW / KNOWN GOOD
CIRCUIT BREAKER, AND
PERFORM THE
FOLLOWING TESTS.
SHOP
SHOP
THIS SECTION IS RESERVED
FOR THE INSTALLER / DEALER
HARMAR DOES NOT RECOMMEND
THESE PROCEDURES BE ATTEMPTED
BY ANYONE WITHOUT PROPER
KNOWLEDGE OF AUTOMOTIVE
ELECTRICAL CIRCUITRY
REASON:
BUTTON WAS HELD TOO LONG AND UNWOUND LIFTING STRAP
LIKE A YO-YO, THE LIFTING STRAP WOUND IN REVERSE
REASON:
CHAIR or SCOOTER IS BEING LIFTED OFF CENTER
REASON:
DRY / DIRTY BUSHINGS
PROCEDURE:
PRESS WHICH EVER BUTTON EXTENDS STRAP, AND
CONTINUE TO HOLD UNTIL STRAP RETURNS TO PROPER DIRECTION
PROCEDURE:
ADJUST FOR CENTER OF GRAVITY ON DOCKING DEVICE. CHECK TO
SEE IF PROPER DOCKING DEVICE IS BEING USED
PROCEDURE:
CLEAN AND LUBRICATE GREY BUSHINGS IN BASE WITH
WHITE/LITHIUM GREASE OR EQUIV.
TROUBLESHOOTING
BATT
ERY
12 V
EXAGGERATED
TEAR OR CHAFF
MOTOR
DEAD
THE TEST INSTRUMENTS SHOW
VOLTAGE AVAILABLE, BUT WILL
DROP TOO LOW WHEN THE LOAD
OF THE MOTOR IS APPLIED.
BUT
BATT
ERY
12 V
INSULATION
REMOVED FOR
CLARITY
MOTOR
DEAD
BATTE
RY
12 V
INSULATION
REMOVED FOR
CLARITY
MOTOR
RUNS
12 V READING
( )
0 V READING
12 V READ
ING
OPEN
1
1
1
2
2
2
TEST
FIRST
TEST
FIRST
TEST
FIRST
THEN
CONNECT
TO
POWER
THEN
CONNECT
TO
POWER
THEN
CONNECT
TO
POWER
12
