Braun RA500 - Manual (Page 40)

Page 38
WARNING
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.
If a problem occurs with your
ramp, discontinue operation
immediately! Contact your sales
representative or call The Braun
Corporation at -800-THE LIFT ® .
One of our national Product Sup-
port representatives will direct you
to an authorized service techni-
cian who will inspect your ramp.
The cause of the problem can
be determined by locating the lift
function and related symptom in
the Troubleshooting Diagnosis
Chart. The specific cause and
remedy can then be determined
by process of elimination. A
Wiring Diagram and Electrical
Schematic are provided to aid in
troubleshooting.
A Repair Parts section with an
exploded view and corresponding
parts list is also provided. Correct
the problem if possible. If the
problem continues, contact The
Braun Corporation.
FUNCTION SYMPTOM POSSIBLE CAUSE REMEDY
Troubleshooting Diagnosis Chart
TROUBLESHOOTING
1.10
No Power
To Controller
1.20
Power to
Controller But
No Function
1.00
NO
OPERATION
Clean and tighten
Clean and tighten. See Chassis Ground
Corrosion on page 28.
Replace
Charge battery
Replace controller fuse or vehicle fuse
Check for loose terminals or broken wire
Correct or replace
Disconnect harness from controller.
Using volt meter test for proper voltage:
Pin  = + 2/24 V
Pin 2 = - Ground
Check harness for loose or broken
connections.
Check harness for loose or broken
connections.
See Controller Diagnostic Guide
Correct or replace
Correct or replace
Check that manual release is re-engaged
. Battery terminals dirty
.2 Bad chassis ground
.3 Battery defective
.4 Battery discharged
.5 25 ampere in-line fuse faulty
.6 Power cable
.7 Vehicle Interlock(s) circuit incomplete
.8 Vehicle-to-controller power harness
.2 Ramp to controller wiring harness
.22 Vehicle to controller data harness
.23 Faulty Controller
.24 Ramp enable circuit incomplete
.25 Parking brake interlock inactive
.26 Manual release disengaged