Page 28
WARNING
Troubleshooting and
repair procedures
must be performed
as speci
À
ed 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 1-800-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 speci
À
c cause and
remedy can then be determined
by process of elimination. Wiring
Diagrams, Electrical Schematics,
Hydraulic Diagrams and Hydrau-
lic Schematics 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.
continued
continued
1.10
No Power
To Ramp
(Circuit Problem)
Clean and tighten
Clean and tighten. See
Chassis Ground
Corrosion
on page 18.
Replace
Charge battery
Replace fuse
Check for loose terminals or broken wire
Correct or replace
Disconnect harness from ramp. Using
volt meter, test (probe) 8-pin Deutsch
male plug terminals as follows:
Pin A = +12/24 V
Pin B = -Ground
Pin C = V (when Stow switch is activated)
Pin D = V (when Deploy switch is acti-
vated)
Remove relays from sockets. Using volt
meter, test (probe) wires/terminals at
relay sockets:
Red = +12/24 V
Black = -Ground
Blue = V (when Stow switch is activated)
Orange = V (when Deploy switch is
activated)
Replace
Clean and tighten
Repair
Crimp tightly to wire
See Microswitches in Systems Descrip-
tions for details
Connect, repair or replace
Contact Braun Product Support - replace
pump
1.11 Battery terminals dirty
1.12 Chassis ground connection (frame
ground cables)
1.13 Battery damaged
1.14 Battery discharged
1.15 30 ampere in-line fuse faulty
1.16 Power cable
1.17 Vehicle Interlock(s) circuit incomplete
1.18 Vehicle-to-ramp wiring harness
1.21 Ramp wiring harness
1.22 Faulty relay(s)
1.22 Loose connection(s)
1.24 Broken wire(s)
1.25 Wire terminal(s)
2.11 See 1.00
2.12 Drift Out Microswitch out of adjust-
ment or damaged
2.13 Drift Out Microswitch harness dis-
connected, damaged or otherwise
damaged
2.14 Pump motor brushes worn
1.20
Power to
Ramp But
No Pump
Operation
1.00
NO
OPERATION
2.10
No
Operation
2.00
DEPLOY
(Out)
FUNCTION
SYMPTOM
POSSIBLE
CAUSE
REMEDY
Troubleshooting Diagnosis Chart
TROUBLESHOOTING
Summary of Contents for BF3255Y-12V
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