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Braun Under-Vehicle Lift NUVL855C Service Manual

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www.braunlift.com
®
"Providing Access to the World"
International Corporate Hdqrs: P.O. Box 310
1-800-THE LIFT
®
(574) 946-6153
35185 Rev. A
June 2010
Service Manual for:
Under-Vehicle Lift
Private Use Wheelchair Lifts
Series
DOT — Private Use Lift
DOT — Private Use Lift
"DOT — Private Use Lift" verifies that this platform lift meets only
the "private use lift" requirements of FMVSS No. 403. This lift may
be installed on all vehicles appropriate for the size and weight of
the lift, except for buses, school buses, and multi-purpose
passenger vehicles other than motor homes with a gross vehicle
weight rating (GVWR) that exceeds 4,536 kg (10,000 lb).
®
®
Winamac, IN 46996 USA
FAX: (574) 946-4670
®
03
03
Read manual
before installing
or servicing lift.
Failure to do so
may result in
serious bodily
injury and/or
property damage.
W ARNING

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Summary of Contents for Braun Under-Vehicle Lift NUVL855C

  • Page 1 Service Manual for: ® Under-Vehicle Lift Private Use Wheelchair Lifts Series DOT — Private Use Lift DOT — Private Use Lift “DOT — Private Use Lift” verifies that this platform lift meets only the “private use lift” requirements of FMVSS No. 403. This lift may be installed on all vehicles appropriate for the size and weight of the lift, except for buses, school buses, and multi-purpose passenger vehicles other than motor homes with a gross vehicle...
  • Page 2 The warranty cards must be processed to activate the warranty. 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.

  • Page 3: Table Of Contents

    Pump Module Parts List .......... 24 Pump Module Diagram .........25A, 26A Lift Exploded Views Complete Lift ..........25B, 26B Repair Parts List ............27 Housing Detail............28 Carriage Detail ............29 Platform Detail ............30 Warranty Braun ® Limited Warranty ........31-33 Page 1...

  • Page 4: Lift Terminology

    Lift Terminology Lift Mounting Brackets (6) Hydraulic Cylinders Hand-Held Attendant's Control Box Bridge Plate Lift Housing Rolling Horizontal Arms W AR NI NG h T-ha uall ndle lock y mov e plat fully Fail resu befo form lt in lock driv plat form...

  • Page 5: Switch And Sensor Locations

    Switch and Sensor Locations Full Out Limit Switch 73950A Lift Out Lift Out Cam Full Out Cam Limit Switch 75776CN 73775 73950A Pressure Transducer 30426 W AR h T-ha ually ndle lock fully Failu befo e plat form resu lt in lock driv plat...

  • Page 6: Certification Checklist Diagnostic Procedures

    403/404 compliant. If an operation does not function as described or a condition is not met, follow the refer- enced procedures to correct the problem or contact a Braun Corporation Product Support representative. • Vehicle movement is prevented unless the lift door is closed, ensuring the lift is stowed.

  • Page 7: Adjustments And Calibration

    Adjustments and Calibration Remove eccentric plate mounting screw. Using Adjustment Procedures screwdriver or small rod, rotate the shaft clockwise to increase carriage height. Rotate the shaft coun- Lift Out Switch: The Lift Out Switch stops inward travel of the carriage/platform during Stow function terclockwise to decrease carriage height.

  • Page 8: Lcd Diagnostic Codes

    Repeat the harness diagnostic procedure. If an incorrect value is still present after checking the harness and connections, contact The Braun Corporation Product Support Department. 243R OBAR S 1 W diag Button...

  • Page 9: Floor Level And Inboard Locator Adjustments

    Floor Level and Inboard Locator Adjustments Achieving proper floor level and the inboard locator must CAUTION positioning of the platform and rest solidly on vehicle floor with inboard locator requires a com- 7° maximum angle (relative to Do not adjust inboard bination of Floor Level switch the platform).
  • Page 10 Floor Level and Inboard Locator Adjustments Floor Level Switch Adjustment 4. If the inboard locator does not rest solidly on Floor Level Requirements: When the lift is vehicle floor or the angle is more than 7°, open positioned at floor level (raised fully), the bot- the hand pump valve (turn counterclockwise) to tom of the platform must be above floor level lower platform slightly (1/4"...
  • Page 11 Floor Level and Inboard Locator Adjustments Inboard Locator Cam Adjustment 5. Measure the angle of inboard locator and verify the slope is a maximum of 7° (rela- tive to the platform). If correct, tighten the serrated flange nut and screw secur- "...
  • Page 12 Floor Level and Inboard Locator Adjustments Usable Platform Length Do not adjust Linkage rod adjustment affects angle CAUTION of inboard locator (vertical position). the inboard locator link- Improper inboard age rod unless locator linkage rod extra usable adjustment may platform length result in lift damage.
  • Page 13 Floor Level and Inboard Locator Adjustments Inboard Locator Occupied Sensor Adjustment Adjustment Nut The optimum setting for the inboard loca- tor occupied sensor adjustment nut is to have just enough pressure to fold and unfold the inboard locator without triggering the inboard locator occupied sensor.

  • Page 14: Lubrication Diagram

    Inboard locator Catch Lower Closure Eccentric Shaft Pivot Points Rollers (bearings) See the Maintenance/Lubrication Schedule for recommended applications per number of cycles. Specified (recommended) Available Braun Lubricant Type Lubricant Amount Part No. Light Penetrating Oil LPS2, General Purpose 16 oz.

  • Page 15: Maintenance And Lubrication Schedule

    Specified lubricants are available there is any sign of wear, damage or improper operation. from The Braun Corporation (part numbers provided on Contact your sales representative or call The Braun Cor- previous page). poration. One of our national Product Support represen-...
  • Page 16 Maintenance and Lubrication Schedule Inspect lift for rattles Correct as needed. Check drive chain tension. Pull out and lock manual release cable. Adjust chain tension as needed. See Drive Chain Adjustment. Inspect inboard locator and linkage for: Resecure, replace or correct as needed. See •...
  • Page 17 Inspect power cable Resecure, repair or replace if needed. Hydraulic Fluid (Pump) - Check level. Note: Fluid Use Braun 87010R (5606 aviation fluid). Do should be changed if there is visible contamina- not mix with Dextron III or other hydraulic fluids.

  • Page 18: Troubleshooting Diagnosis Chart

    PUMP RUNS Power pack must be mounted vertically. BUT WILL 2.13 No oil (low) Use Braun 87010R (5606 aviation fluid). Do NOT LIFT not mix with Dextron III or other hydraulic fluids. PLATFORM Check fluid level with platform lowered fully. Fill to maximum fluid level indicated on reservoir (speci-...
  • Page 19 Troubleshooting Diagnosis Chart FUNCTION POSSIBLE CAUSE REMEDY 4.11 Outer Barrier switch is not Check diagnostic LCD for Outer Barrier switch sta- activated or defective. tus. Barrier is down or barrier release pin partially 4.00 out. See Outer Barrier Occupied Calibration on LIFT WILL page 5.
  • Page 20 Troubleshooting Diagnosis Chart FUNCTION POSSIBLE CAUSE REMEDY 10.11 Poor plug connections Check harness connectors A1 and A2, E1, N1, 10.00 N2, E1, F1 and F2. BARRIER WILL NOT OPERATE 10.12 Faulty barrier actuator motor or Check power at motor. Adjust or replace actuator UP OR DOWN actuator out of adjustment if necessary.

  • Page 21: Lift Wiring Schematic - Main

    Lift Wiring Schematic - Main SW PWR SW PWR SW PWR IGN PWR IGN PWR IGN PWR BELOW STOW BELOW STOW BELOW STOW FULL OUT FULL OUT FULL OUT NOT FULL OUT NOT USED OR / BK LIFT OUT LIFT OUT LIFT OUT BU / BK NOT USED...

  • Page 22: Lift Wiring Schematic - Lift Accessories

    #86476 REMOTE & RECEIVER #86483 DOWN STOW DOOR CLOSE #86477 CONTACT REMOVAL THE BRAUN CORPORATION 86478 TAILLIGHT MAGNETIC SWITCHES-FORD #33576K 1. Remove orange wedge using 2. To remove the contacts, gently 3. Hold the rear seal in place, as needle nose pliers or a hook shaped...
  • Page 23 NOTES This page intentionally left blank. Page 21...

  • Page 24: Hydraulics Parts List

    Hydraulic Parts List Item Qty. Description Part No. Pump Assembly (M259 with Reservoir/with Back-up pump) 87060 Motor, Pump 14785-IS Valve, “Down” (with Solenoid) 14901 Clamp, Reservoir - H-48 17069 Reservoir Replacement Kit (Includes Item #10) 88188K O-Ring (only), Hand Pump Mounting 17351 Hand Pump (Backup) with O-Rings (Includes Item #6) 87065...

  • Page 25: Hydraulics Diagram

    Hydraulic Diagram Arrow must face pump Arrow must face pump Page 23...

  • Page 26: Pump Module Parts List

    Pump Module Parts List Item Qty. Description Part # Pump Assembly, M259 87060 Adapter, 1/4” Male NPT x 7/16-20 Male JIC 37° 10130 Hose Assembly, 1/4”- F. Swivel 7/16-20 JIC 37° 32785A-202 Fitting, 90° - 7/16-20 Male JIC 37° x 1/4” Male NPT 87569 Coupling, Hydraulic Quick Connect x 1/4”...
  • Page 27 Pump Exploded View DOWN SOLENOID CIRCUIT SENTRY DOWN SOLENOID LIFT STOWED SIGNAL (OUTPUT) VEHICLE SECURE SIGNAL (INPUT) PUMP GROUND Page 25A Page 26A...

  • Page 28: Complete Lift

    Complete Lift Exploded View 50 48 42 81 Page 25B Page 26B...

  • Page 29: Repair Parts List

    Repair Parts List Item Qty. Description Part No. Item Qty. Description Part No. Housing Weldment 75101RNW Rod End, 5/16-24 LH Male x 1 1/2" LG 31773 Bearing, Outer Race Assembly 75230A Chain Release Weldment 73760A Rod End, 5/16-24 Male x 1 1/2" LG 31772 Cover, Lower 75732-2...

  • Page 30: Housing Detail

    Lift Housing Detail Exploded View Page 28...

  • Page 31: Carriage Detail

    Lift Carriage Detail Exploded View 50 48 42 81 38 112 Page 29...

  • Page 32: Platform Detail

    Lift Platform Detail Exploded View Page 30...

  • Page 33: Braun Limited Warranty

    first retail purchaser by an independent, authorized dealer of Braun, or, if the dealer places the product into any type of service prior to retail sale, on the date the dealer first places the product in such service.
  • Page 34 You must inspect the product for this type of damage when you take delivery. If you find any such defect or damage you must notify the selling dealer, or Braun, at the time of delivery to have these items covered by this limited warranty and to have work performed on the items at no cost to you as provided by this limited warranty.
  • Page 35 Braun will do and does not guarantee anything about the product for any time period. Nothing in this warranty, or any action of Braun, or any agent of Braun, shall be interpreted as an extension of any warranty period or the filing limitation period in this paragraph. Some states do not allow a reduction in the statute of limitations, so this reduction may not apply to you.
  • Page 36 NOTES This page intentionally left blank. Page 34...
  • Page 37 "Providing Access to the World" ® Over 300 Braun Dealers Worldwide ® "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 All illustrations, descriptions and specifications in this manual are based 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. at the time of publication. The Braun Corporation reserves the right to make changes at any time without notice.

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