Braun NUVL855RM24 service manual Troubleshooting Diagnosis Chart, Function Possible Cause Remedy

Page 18

Troubleshooting Diagnosis Chart

WARNING

Troubleshooting and repair procedures must be performed as specified by au- thorized service per- sonnel only. Failure to do so may result in serious bodily injury and/or property damage.

If a problem occurs with your lift, discontinue operation imme- diately! Do not attempt repairs yourself. Contact your dealer or call The Braun Corporation at 1-800-THE LIFT®. One of our national Product Support repre- sentatives will direct you to an authorized service repairman 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 Electrical Schematic, Hydraulic Diagram and Hydraulic Schemat- ic are provided to aid in trouble- shooting.

A Repair Parts section with ex- ploded views and corresponding parts lists is also provided. Cor- rect the problem if possible. If the problem continues, contact The Braun Corporation.

FUNCTION

POSSIBLE CAUSE

REMEDY

 

1.11

Low battery

Check vehicle battery

 

1.12 Bad ground

Check for good ground between vehicle chassis

 

 

 

and 3/8” bolt on back of power pack.

1.00

1.13

Poor plug connections

Check all plugs for proper contact.

NO

 

 

 

OPERATION

1.14

Blown fuse

Check fuses on P.C. board.

 

1.15

Circuit Sentry

Reset circuit breaker.

 

1.16

Defective Interlock

Check for voltage on red wire with gray stripes in

 

 

 

interlock plug connected to P.C. board.

 

 

 

 

 

 

 

 

2.11 Hydraulic Down valve open

Flush valve by operating Up and Down manual

 

 

 

override switches at same time for 4 to 5 seconds

2.00

 

 

several times.

 

 

 

PUMP RUNS

2.12

Pump mounted horizontal

Power pack must be mounted vertically.

BUT WILL

NOT LIFT

2.13

No oil (low)

Check fluid level. Use 5606 aviation fluid only (part

PLATFORM

 

 

 

87010R). Check fluid level with platform lowered

 

 

 

fully. Fill to within 1-1/2" of the bottom of the fill

 

 

 

tube (neck).

 

 

 

 

 

 

3.00

3.11 Up Solenoid

Check for power on pump black wire going from

 

 

solenoid to motor.

PUMP DOES

 

 

 

 

 

NOT RUN WITH

3.12 Bad power and ground

See 1.00

OVERRIDE

 

 

 

SWITCH OR

 

 

 

HAND-HELD

 

 

 

PENDANT

 

 

 

 

 

 

 

Page 16

Image 18
Contents Series Warranty and Registration Instructions CongratulationsContents Lift Terminology Switch and Sensor Locations Certification Checklist Diagnostic Procedures Adjustments and Calibration Adjustment ProceduresLCD Diagnostic Codes StlvFloor Level and Inner Roll Stop Adjustments Floor Level Switch AdjustmentInner Roll Stop Adjustment Figure aFloor Level and Inner Roll Stop Adjustments Inner Roll Stop Linkage Rod Torque Tube Minimum Clearance Inner Roll Stop Occupied Sensor Adjustment Maintenance and Lubrication Lubrication DiagramMaintenance and Lubrication Schedule 7501500 4500 Cycles Troubleshooting Diagnosis Chart Function Possible Cause RemedyLift will Barrier will Contact Removal This page intentionally left blank Wiring Schematic Symbol DescriptionHydraulic Parts List Qty DescriptionHydraulic Diagram Pump Module Parts List Pump Module Diagram Exploded Views and Parts Lists Housing Assembly Parts ListHousing Assembly Carriage Assembly Parts List Carriage Assembly Platform Assembly Parts List Main Platform Assembly Main Platform Assembly Inner Roll Stop Platform Assembly Outer BarrierPlatform Assembly Front Handrail Platform Assembly Rear HandrailPlatform Assembly Front Handrail Lock Platform Assembly Rear Handrail LockProviding Access to the World CJKA-**GB
Related manuals
Manual 52 pages 60.97 Kb