Page 44
W
A
RNING
Troubleshooting and
repair procedures
must be performed
as specified by an
authorized service
technician only.
Failure to do so may
result in serious
bodily injury and/or
property damage.
Troubleshooting Diagnosis Chart
1.10
No Power
To Lift
(Circuit Problem)
Fix overload and reset-turn RESET lever
Clean and tighten
Clean and tighten. See Chassis Ground
Notice on page 15.
Replace
Charge battery
Replace
Check for loose terminals or broken wire
Correct or replace
Reset or replace
Clean and tighten
Repair
Crimp tightly to wire
Replace
Replace
Adjust or replace.
See Microswitches in
Systems Descriptions for details (pages
36-39)
Connect, repair or replace
Replace
Check for loose connection or replace.
See Systems Descriptions for Quick-
Check Procedure
Press Fold switch until lift is fully folded,
then unfold platform
Replace worn bushings and/or pins.
Lubricate platform pivot pin and fold
axles.
See Maintenance and Lubrication
Schedule and Diagram
1.11 Circuit Sentry (100 ampere circuit
breaker) tripped. Note: 70 ampere
circuit sentry for 24 volt systems.
1.12 Battery terminals dirty
1.13 Chassis ground connection
(mounting bolt ground)
1.14 Battery defective
1.15 Battery discharged
1.16 Circuit Sentry defective (See 1.11
note)
1.17 Power cable
1.21 Interlock (optional) circuit incomplete
1.22 5 ampere circuit breaker tripped or
defective
1.23 Loose connection
1.24 Broken wire
1.25 Wire terminal
1.26 Solenoid defective
1.27 Switch defective
2.11 See 1.00
2.12 Unfold/Down Microswitch out of
adjustment or defective
2.13 Unfold/Down Microswitch harness
disconnected, damaged or otherwise
defective
2.14 Cylinder flow control valve(s)
defective
2.15 Unfold, Bridging and/or Down
solenoid/valves: Poor connection,
bent shaft or contaminated filter
2.16 Lift platform has drifted against
Lift-Tite™ latches
2.21 Lack of lubrication (parallel arm pivot
pins, rotating pivot slide arm pivot
pins, platform pivot pin, handrail
pivot pins and platform fold axles)
FUNCTION SYMPTOM POSSIBLE CAUSE REMEDY
1.20
Power to
Lift But
No
Operation
(Switches)
1.00
NO
OPERATION
2.10
No
Operation
2.20
Faulty or
Sluggish
Operation
2.00
PLATFORM
UNFOLD
(Out)
If a problem occurs with your lift,
discontinue operation immedi-
ately! Do not attempt repairs
yourself. Contact your sales
representative or call The Braun
Corporation at 1-800-THE LIFT.
One of our national Product
Support representatives will direct
you to an authorized service
technician who will inspect your
lift.
The cause of the problem can be
determined by locating the lift
function and related symptom in
the Troubleshooting Diagnosis
Charts. The specific cause and
remedy can then be determined
by process of elimination. A
Wiring Diagram, Electrical
Schematic, Hydraulic Diagram
and Hydraulic Schematic are
provided to aid in troubleshooting.
A Repair Parts section with
exploded views and correspond-
ing parts lists is also provided.
Correct the problem if possible. If
the problem continues, contact
The Braun Corporation.
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