Braun NUVL855RM24 service manual Lift will

Page 19

Troubleshooting Diagnosis Chart

FUNCTION

 

POSSIBLE CAUSE

REMEDY

 

 

 

 

 

4.11

Outer Barrier switch is out of

Check diagnostic LCD for Outer Barrier switch sta-

4.00

 

adjustment or defective.

tus. Barrier is down or barrier release pin partially

LIFT WILL

 

 

out. Adjust or replace switch as necessary.

GO UP WITH

4.12

Full Out switch is not activated or

 

OVERRIDE

Check diagnostic LCD for Full Out switch status.

SWITCH BUT

 

defective.

Adjust or replace switch as necessary.

NOT WITH

 

 

 

HAND-HELD

4.13

Hand-held pendant not working

Check for hand-held pendant illumination and con-

PENDANT

 

properly.

tinuity of the switches. Verify SW1 and Door Open

 

 

 

switches are functioning correctly.

 

 

 

 

 

 

 

 

5.00

5.11

Hydraulic Down valve bad

Check for power on red “valve” wire from P.C.

LIFT WILL

NOT GO

 

 

board to Down solenoid when pushing override

DOWN WITH

 

 

switch or hand-held pendant button. Replace if

OVERRIDE

 

 

necessary.

SWITCH

 

 

 

OR WITH

5.12

Dirty Down valve (clogged)

Flush valve by operating Up and Down manual

HAND-HELD

 

 

override switches at same time for 4 to 5 seconds

PENDANT,

 

 

 

 

several times.

GOES DOWN

 

 

 

 

 

SLOWLY OR

 

 

 

LIFT DRIFTS

 

 

 

DOWN BY

 

 

 

ITSELF

 

 

 

 

 

 

 

 

 

 

 

6.00

 

 

Check diagnostic LCD for Full Out switch status.

LIFT WILL GO

6.11

Full Out switch out of adjustment or

DOWN WITH

 

defective.

Adjust or replace switch as necessary.

OVERRIDE

 

 

 

SWITCH BUT

6.12

SW0 and/or Door Full Close switch-

Check switches for proper operation/adjustment.

NOT WITH

 

es out of adjustment or defective.

Adjust or replace switch as necessary.

HAND-HELD

 

 

 

PENDANT

 

 

 

 

 

 

 

7.00

 

 

 

LIFT WILL NOT

7.11 Poor plug connections

Check harness connections A1, A2, B1 and B2

EXTEND WITH

 

 

 

OVERRIDE

7.12

Bad In/Out motor

Check power at motor. Replace motor if necessary.

SWITCH OR

 

 

 

HAND-HELD

7.13 Bad power and ground

See 1.00

PENDANT

 

 

 

 

 

 

 

 

 

 

 

 

8.11

Stow Level switch out of adjust-

Check diagnostic LCD for Stow Level switch sta-

 

 

ment or defective.

tus. Adjust or replace switch as necessary.

8.00

8.12

Platform is occupied or out of

Remove weight from platform. See Platform

LIFT WILL NOT

 

calibration

Sense Calibration on page 5.

STOW WITH

8.13

SW0 and/or Door Full Closed

Check switches for proper operation/adjustment.

HAND-HELD

PENDANT

 

switches out of adjustment or

Adjust or replace switch as necessary.

 

 

defective.

 

 

8.14

Handrail Belt

Belt must be latched until platform is at stow level

 

 

 

and must be unlatched before platform will stow.

 

 

 

 

Page 17

Image 19
Contents Series Congratulations Warranty and Registration InstructionsContents Lift Terminology Switch and Sensor Locations Certification Checklist Diagnostic Procedures Adjustment Procedures Adjustments and CalibrationStlv LCD Diagnostic CodesFloor Level Switch Adjustment Floor Level and Inner Roll Stop AdjustmentsFigure a Inner Roll Stop AdjustmentFloor Level and Inner Roll Stop Adjustments Inner Roll Stop Linkage Rod Torque Tube Minimum Clearance Inner Roll Stop Occupied Sensor Adjustment Lubrication Diagram Maintenance and Lubrication750 Maintenance and Lubrication Schedule1500 4500 Cycles Function Possible Cause Remedy Troubleshooting Diagnosis ChartLift will Barrier will Contact Removal This page intentionally left blank Symbol Description Wiring SchematicQty Description Hydraulic Parts ListHydraulic Diagram Pump Module Parts List Pump Module Diagram Housing Assembly Parts List Exploded Views and Parts ListsHousing Assembly Carriage Assembly Parts List Carriage Assembly Platform Assembly Parts List Main Platform Assembly Main Platform Assembly Outer Barrier Platform Assembly Inner Roll StopPlatform Assembly Rear Handrail Platform Assembly Front HandrailPlatform Assembly Rear Handrail Lock Platform Assembly Front Handrail LockProviding Access to the World CJKA-**GB
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