Braun Corporation Under-Vehicle Lift NUVL855R Service Manual Download Page 19

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Page 17

FUNCTION

POSSIBLE CAUSE

REMEDY

4.11 Outer Barrier switch is not

activated or defective.

4.12 Full Out switch is not acti-

vated or defective.

4.13 Hand-held pendant not work-

ing properly.

4.00

LIFT WILL

GO UP WITH

OVERRIDE

SWITCH BUT

NOT WITH

HAND-HELD

PENDANT

Check diagnostic LCD for Outer Barrier switch sta-
tus. Barrier is down or barrier release pin partially
out. See Outer Barrier Occupied Calibration on
page 5. Replace switch as necessary.

Check diagnostic LCD for Full Out switch status.
Adjust or replace switch as necessary.

Check for hand-held pendant illumination and
continuity of the switches. Verify Door Open switch
is functioning correctly.

5.11 Hydraulic down valve bad

5.12 Dirty down valve (clogged)

5.00

LIFT WILL

NOT GO

DOWN WITH

MANUAL

OVERRIDE

OR WITH

HAND-HELD

PENDANT OR

GOES DOWN

SLOWLY

OR DRIFTS

DOWN BY

ITSELF

Check for power on red wire from P.C. board to
Down solenoid when pushing override button or
hand-held pendant button. Replace if necessary.

Flush valve by operating Up & Down manual
override buttons at same time for 4 to 5 seconds
several times.

Troubleshooting Diagnosis Chart

6.00

LIFT WILL GO

DOWN WITH

OVERRIDE

BUT NOT WITH

HAND-HELD

PENDANT

6.11 Full Out switch out of adjust-

ment or defective.

6.12 Door Full Close switch out of

adjustment or defective.

Check diagnostic LCD for Full Out switch status.
Adjust or replace switch as necessary.

Check switch for proper operation/adjustment.
Adjust or replace switch as necessary.

7.00

LIFT WILL NOT

GO OUT WITH

HAND-HELD

PENDANT

7.11 Missing shunt

7.12 Door Open switch out of adjust-
ment or defective

Verify shunt (jumper) is located in the Door Opera-
tor 4-conductor jack (jumper pins 3 & 4) on the
control board when door operators are not used.

Check switch for proper operation/adjustment.
Adjust or replace switch as necessary.

9.00

LIFT WILL NOT

STOW WITH

HAND-HELD

PENDANT

9.11 Stow switch out of adjustment

or defective.

9.12 Platform is occupied or out of
calibration.

Check diagnostic LCD for Stow switch status.
Adjust or replace as necessary.

Remove weight from platform. See Platform
Sense Calibration on page 5.

8.00

LIFT WILL NOT

GO OUT WITH
OVERRIDE OR

HAND-HELD

PENDANT

8.11 Poor plug connections

8.12 Bad in/out motor

8.13 Bad power and ground

Check harness connections A1, A2, B1 and B2

Check power at motor. Replace motor if necessary.

See 1.00

Summary of Contents for Under-Vehicle Lift NUVL855R

Page 1: ...A G Public Use Wheelchair Lifts 02 Series 02 Service Manual for 35076 October 2008 Patent 5 305 486 Patent 5 305 486 www braunlift com DOT Public Use Lift DOT Public Use Lift DOT Public Use Lift verifies that this platform lift meets the public use lift requirements of FMVSS No 403 This lift may be installed on all vehicles appropriate for the size and weight of the lift but must be installed on b...

Page 2: ... BRAUN CORPORATION OWNER STATE ZIP Sample Warranty Registration Card Two Braun Serial No Series No identiﬁcation tags shown below are posted on the lift One I D tag is posted on the left platform side plate outboard end A second I D tag is located inside of the pump module Both I D tags provide the product identiﬁcation information provided on the warranty registration card Record the information ...

Page 3: ...nts 7 11 Lubrication Diagram 12 Maintenance and Lubrication Schedule 13 15 Troubleshooting Diagnosis Chart 16 19 Lift Wiring Schematic 20 Notes 21 Hydraulics Hydraulics Parts List 22 Hydraulics Diagram 23 Repair Parts Pump Module Pump Module Parts List 24 Pump Module Diagram 25 Lift Exploded Views Complete Lift 26 Repair Parts List 27 Housing Detail 28 Carriage Detail 29 Platform Detail 30 Warrant...

Page 4: ... Uninte nded platfo rm deplo ymen t may result in seriou s bodily injury and o r prope rty dama ge Do not remo ve Outboard Right Left Inboard Lift Terminology Lift Mounting Brackets 6 Hydraulic Cylinders Lifting Arms Rolling Horizontal Arms Outer Barrier Actuator Outer Barrier Platform Cable activated Manual Release System Hand Held Attendant s Control Box Pump Module Inner Roll Stop Lift Housing ...

Page 5: ...platfor m deploy ment Uninte nded platfor m deploy ment may result in seriou s bodily injury and or proper ty damag e Do not remo ve JKA DOOR STOW DOWN UP Barrier Down Limit Switch 73950RNA Below Stow Limit Switch 73950A Floor Level Limit Switch 73950A Floor Level Cam 73712 Below Stow Cam 73712 Pressure Transducer 30426 Full Out Cam 75776CN Lift Out Cam 73775 Lift Out Limit Switch 73950A Full Out ...

Page 6: ...ill not fold stow when occupied Refer to Platform Sense Calibration The inner roll stop will not raise if occupied Refer to Inner Roll Stop Occupied Sensor Adjustment The outer barrier will not raise if occupied Refer to Outer Barrier Occupied Calibration procedure Verify platform lighting when lift is deployed and pendant illumination when lift is powered 1 Replace bulb s in the light housing 2 C...

Page 7: ...ay diminish The eccentric shaft mounting plate allows height adjustment Remove eccentric plate mounting screw Using screwdriver or small rod rotate the shaft clockwise to increase carriage height Rotate the shaft coun terclockwise to decrease carriage height Reinstall mounting screw in nearest retainer hole Adjust left and right side eccentric shafts screw positions may vary from side to side Adju...

Page 8: ...ant Magnetic Remote Entry or 3rd Station Controls Moving Out Of Cassette Moving Up From Stow At Floor Level Moving Down From Stow Ground Level Ground Level OB Out STLV SW 1 1 LOUT SW 1 FOUT SW 1 1 1 1 1 FLV SW 1 OBAR SW 1 1 1 1 1 1 GND LVL 1 1 MAT SW 1 when mat is activated IBAR SW 1 when inner roll stop is activated DO SW 1 when door is full open or pin 3 and pin 4 are jumpered SBELT SW 1 when se...

Page 9: ... Level switch stops up ward travel of the platform during the Up function activated by the torque tube mounted Floor Level cam Position the bottom of the lift platform 1 1 2 above floor level Floor Level Switch Floor Level Cam Torque Tube A Cam depressing switch Instructions adjust only if neces sary The inner roll stop must rest properly on the vehicle floor for wheelchair entry and exit threshol...

Page 10: ...hould be a minimum of 1 clearance between the in ner roll stop and torque tube See photo I Adjust the inner roll stop as detailed in the following procedures Then adjust the linkage rod as detailed on page 9 only if necessary Inner Roll Stop Linkage Rod 1 Raise the lift platform fully floor level us ing the manual operation system Manual Operating Instructions detailed on Quick Reference Installat...

Page 11: ...r Do not continue to turn the adjustment screw once the inner roll stop is contacting the vehicle floor 6 Verify there is no gap between the inner roll stop and the roll stop catch See Photo F Turn the adjustment screw clockwise to bring the roll stop catch back in contact with the inner roll stop Do not remove the gap by adjusting the linkage rod 7 While holding the cam locking screw tighten the ...

Page 12: ... exceed the travel of the slider block resulting in damage to the cam fol lower bearing the cam and or other compo nents 1 Position the lift platform below stow level using the manual operation system Do not operate the lift with the electric pump during adjustment procedures 2 Loosen the jam nuts at each end of the linkage rod Adjust rod length as need ed Minimize adjustment To prevent in ner rol...

Page 13: ...is triggering the sensor while it is fold ing tighten the sensor nut 1 8 turn and cycle the lift several times to verify cor rect operation See Photo J 3 If the lift is not reacting to weight on the inner roll stop soon enough loosen the pressure adjusting nut 1 8 turn and cycle the lift several times to verify cor rect operation 4 If the inner roll stop occupied alarm continues to go off even whe...

Page 14: ...bearings LO Dual Outer Barrier tall Pivot Points LO Outer Barrier Detent Pin LO Dual Outer Barrier short and Lower Closure Pivot Points LO Eccentric Shaft and Carriage Rollers bearings LO Inner Roll Stop Linkage Pivot Points LO Lifting Arm Pivot Points LO Torque Tube Pivot Points LO Hydraulic Cylinder Pivot Points LO Inner Roll Stop Hinge Pivot Points and DOOR STOW DOWN UP Specified recommended Av...

Page 15: ...ed 4500 cycle maintenance procedures These inter vals are a general guide line for scheduling main tenance procedures and will vary according to lift use and conditions Lifts exposed to severe condi tions weather environ ment contamination heavy usage etc may require inspection and maintenance procedures to be performed more often than specified Maintenance Indicator The Lift Ready green LED mount...

Page 16: ...ow out housing Blow off platform also Deploy lift remove inboard and outboard lower pans and clean housing tracks Check drive chain tensioner jam nuts and con necting link for securement and or misalignment Inspect drive chain release latch mechanism for proper operation positive securement wear or other damage Inspect platform cable activated manual release system T handle cable assembly and carr...

Page 17: ...utive 750 Cycle Intervals 4500 Cycles Inspect limit switches for securement and proper adjustment Inspect carriage lifting arm and eccentric shaft rollers bearings for wear or damage positive securement and proper operation Inspect external snap rings e clips Carriage roller bearings 4 Lower lifting arm pins 4 Eccentric shaft track roller bearing 1 Inspect lower lifting arm pins for wear or damage...

Page 18: ...l If fluid level decal is not present measure 7 8 from the bot tom of fill tube to locate fluid level 3 11 Up Solenoid 3 12 Bad power and ground 3 00 PUMP DOES NOT RUN WITH MAN UAL OVER RIDE OR HAND HELD PENDANT Check for power on black wire going from solenoid to motor See 1 00 Troubleshooting and repair procedures must be performed as specified by au thorized service per sonnel only Failure to d...

Page 19: ... several times Troubleshooting Diagnosis Chart 6 00 LIFT WILL GO DOWN WITH OVERRIDE BUT NOT WITH HAND HELD PENDANT 6 11 Full Out switch out of adjust ment or defective 6 12 Door Full Close switch out of adjustment or defective Check diagnostic LCD for Full Out switch status Adjust or replace switch as necessary Check switch for proper operation adjustment Adjust or replace switch as necessary 7 00...

Page 20: ...essure Transducer 12 12 Stow switch out of adjust ment or defective 12 13 Full Out switch out of adjustment or defective Check Pressure Transducer Adjust or replace as necessary See Ground Sense Calibration on page 5 Check diagnostic LCD for Stow switch status Adjust or replace as necessary Check diagnostic LCD for Full Out switch status Adjust or replace as needed Troubleshooting Diagnosis Chart ...

Page 21: ... to pull wedge straight out 2 To remove the contacts gently pull wire backwards while at the same time releasing the locking finger by moving it away from the contact with a screwdriver 3 Hold the rear seal in place as removing the contact will displace the seal Troubleshooting Diagnosis Chart ...

Page 22: ... 1 NOT USED NOT USED WH GN OR BK BU BK NOT USED BK NOT USED RD GN BK BK WH BU RD BK A J G C H L K B I F D E THRESHOLD MAT 34422A V2 WH BK 1 2 1 2 1 2 LIFT DEVICES 1 3 5 7 9 2 4 6 8 10 REMOTE ENTRY RD GN GN BU BU BK WH GN BK OR BK OR BK BU BK BU BK BK WH RD BK BELOW STOW FULL OUT LIFT OUT SW PWR IGN PWR GND SENS SAFETY FLOOR LVL BAR DN BELOW STOW FULL OUT LIFT OUT SW PWR IGN PWR GND SENS SAFETY FLO...

Page 23: ...U n f o l d f o r L i f t W i r i n g S c h e m a t i c Page 21 This page intentionally left blank NOTES ...

Page 24: ...sembly 1 4 Female Swivel 7 16 20 JIC 37 32785A 202 20 1 Fitting 90 7 16 20 Male JIC 37 x 1 4 Male NPT 87569 21 1 Coupling Hydraulic Quick Connect x 1 4 Female NPT 87614 22 1 Nipple Hydraulic Quick Connect x 1 4 Female NPT 87615 23 1 Elbow 90 1 4 NPT Street 10114 24 1 Nut 9 16 18 Hex Jam 83077 25 1 Fitting Assembly Bulk Head 73777A 26 1 Hose Assembly 3 16 Female Swivel 7 16 20 JIC 37 915 5603 080 5...

Page 25: ...draulic Diagram 34 28 30 32 35 35 31 26 18 25 33 33 19 20 21 22 23 24 17 34 27 28 29 29 36 Front Cylinder Rear Cylinder 14 1 2 3 6 5 4 16 9 10 11 15 7 12 8 11 13 37 38 39 Arrow must face pump Arrow must face pump ...

Page 26: ... Self Tap Flat Head 82764 26 5 Bumper 1 2 Dia x 1 4 Tall Rubber 82064 27 1 Electrical Board Assembly w Program Chip 31414A NS 28 1 Hand Pendant Assembly NHTSA NUVL 32426A 29 1 Edge Liner 1 8 x 6 Q Trim 13910R006 30 1 Edge Liner 1 8 x 4 Q Trim 13910R004 31 1 Washer 328 x 562 x 042 83583 32 3 Screw 5 16 18 x 1 2 Serrated Washer Head Hex 82881 33 1 Plate Power Pack Mounting 73822 34 1 Bracket Power P...

Page 27: ...8 2 42 3 32 34 47 35 1 15 13 16 14 6 8 7 8 18 19 27 40 39 38 38 43 52 41 44 37 31 24 24 24 21 32 26 25 9 12 11 TO DOWN SOLENOID LIFT STOWED SIGNAL OUTPUT VEHICLE SECURE SIGNAL INPUT TO CIRCUIT SENTRY TO DOWN SOLENOID 22 36 24 23 28 45 DO OR ST OW DO WN UP 46 RD WH 25 25 35 35 35 52 ...

Page 28: ...3 51 52 53 53 120 79 119 164 64 66 122 139 69 106 10 53 53 53 113 66 110 98 145 66 108 108 101 100 92 98 118 100 125 100 113 40 31 41 104 104 87 161 161 87 161 161 116 32 38112 158 103 159 105 38 160 95 40 49 47 47 25 50 48 94 42 81 34 36 37 46 34 36 37 50 48 25 48 34 84 39 85 85 149 33 39 33 38 20 38 39 81 50 83 17 93 94 50 48 41 37 82 32 30 28 29 25 25 25 25 112 37 41 37 41 37 25 43 154 6 6 39 2...

Page 29: ...ylon 82773 82 1 Cam Rear Barrier Weldment 75408NW 83 3 Clamp Insulate 1 1 8 20535 84 1 Bracket Switch In Out Mounting 73719 85 3 Tape Limit Switch Mounting Pad 73747 Item Qty Description Part No Item Qty Description Part No 86 1 Rod End 5 16 24 LH Male x 1 1 2 LG 31773 87 2 Bearing Outer Race Assembly 75230A 88 1 Rod End 5 16 24 Male x 1 1 2 LG 31772 89 6 Washer 10 Internal Tooth 11540 90 4 Screw ...

Page 30: ...g Detail Exploded View 25 3 24 25 25 25 14 13 4 25 25 25 163 25 7 162 162 162 25 135 138 25 67 67 4 25 83 8 26 4 4 152 25 15 16 21 22 67 67 1 6 17 12 11 11 9 5 18 27 123 153 25 102 154 6 6 39 2 155 132 162 10 77 78 10 10 ...

Page 31: ...61 161 116 32 38112 158 103 159 105 38 160 95 40 49 47 47 25 50 48 94 42 81 34 36 37 46 34 36 37 50 48 25 48 34 84 39 85 85 149 33 39 33 38 20 38 39 81 50 83 17 93 94 50 48 41 37 82 32 30 28 29 25 25 25 25 112 37 25 43 92 46 34 35 35 39 39 42 102 57 59 25 83 12 25 150 150 149 137 137 89 89 105 12 ...

Page 32: ...1 90 69 69 69 122 54 55 58 58 53 127 128 53 53 53 121 130 53 53 51 52 53 53 120 79 119 164 64 66 122 139 69 106 10 53 53 53 113 66 110 98 145 66 108 108 101 100 98 118 100 125 100 113 41 37 41 37 90 90 141 25 143 143 157 157 117 143 142 148 156 60 162 162 162 162 162 144 142 142 115 53 53 53 53 53 53 53 151 85 80 86 129 76 88 134 65 129 147 131 23 65 101 100 125 100 99 100 113 118 118 100 98 100 1...

Page 33: ...ty to complete any work and to make parts and design changes from time to time without notice to anyone Braun reserves the right to make changes in the design or material of its products without incurring any obligation to incorporate such changes in any previously manufactured product Braun makes no war ranty as to the future performance of this product and this limited warranty is not intended t...

Page 34: ... not attributable to Braun any material component or part of the product that is warranted by another entity Note the written warranty provided by the manufacturer of the material component or part is the direct responsibility of that manufacturer items that are added or changed after the product leaves Braun s possession additional items installed at any dealership or other place of business or b...

Page 35: ...es do not allow a reduction in the statute of limitations so this reduction may not apply to you WARRANTY REGISTRATION and MISCELLANEOUS Your warranty registration records should be completed and delivered to the appropriate companies includ ing the Braun Delivery Checklist Warranty form That form must be returned to Braun within twenty 20 days of purchase The Braun warranty will not be registered...

Page 36: ...Page 34 NOTES This page intentionally left blank ...

Page 37: ...Over 300 Braun Dealers Worldwide Providing Access to the World Providing Access to the World International Corporate Hdqrs P O Box 310 Winamac IN 46996 USA 1 800 THE LIFT 574 946 6153 FAX 574 946 4670 ...

Page 38: ...d on the latest product information available at the time of publication The Braun Corporation reserves the right to make changes at any time without notice 35076 October 2008 35076 October 2008 Service Manual for 02 Series 02 Providing Access to the World CJKA G CJKA G The Braun Corporation The Braun Corporation International Corporate Hdqrs P O Box 310 Winamac IN 46996 USA 1 800 THE LIFT 574 946...

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