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Braun UVL SERIES Under-Vehicle Lift NUVL855SM Service Manual

Public use wheelchair lifts
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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
35087 Rev. A
June 2010
Service Manual for:
Under-Vehicle Lift
Public Use Wheelchair Lifts
Series
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 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
®
02
02
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 UVL SERIES Under-Vehicle Lift NUVL855SM

  • Page 1 Service Manual for: ® Under-Vehicle Lift Public Use Wheelchair Lifts Series 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 buses, school buses, and multi- purpose passenger vehicles other than motor homes with a gross...
  • 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 .......... 22 Pump Module Diagram .........23A, 24A Lift Exploded Views Complete Lift ..........23B, 24B Repair Parts List ............. 25 Housing Detail............26 Carriage Detail ............27 Platform Detail ............28 Warranty ® Braun Limited Warranty .......... 29-31 Page 1...

  • Page 4: Lift Terminology

    Lift Terminology Lift Mounting Brackets (6) Hand-Held Attendant's Hydraulic Control Box Cylinders Inner Roll Stop Lift Housing Lifting Arms Outer Barrier Actuator IN G h T-ha uall ndle lock y mov fully Fail befo e plat form resu lt in lock driv plat...

  • 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 73775 75776CN 73950A Pressure Transducer 30426 W AR Push T-ha ually ndle lock Failu befo enga e platf fully resu depl lt in drivi lock...

  • 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 terclockwise to decrease carriage height. Reinstall travel of the carriage/platform during Stow function mounting screw in nearest retainer hole.

  • 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 Inner Roll Stop Adjustments

    Floor Level and Inner Roll Stop Adjustments Achieving proper floor level posi- and the inner roll stop must rest CAUTION tioning of the platform and inner solidly on vehicle floor with 7° roll stop requires a combination maximum angle (relative to the Do not adjust inner of Floor Level switch adjustment platform).
  • Page 10 Floor Level and Inner Roll Stop Adjustments Floor Level Switch Adjustment 4. If the inner roll stop does not rest solidly on ve- Floor Level Requirements: When the lift is hicle 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...
  • Page 11 Floor Level and Inner Roll Stop Adjustments Inner Roll Stop Cam Adjustment 5. Rotate the cam so the cam follower bearing engages the cam notch (saddle). See Photos E and F. 6. Reinstall the cam securement bolt in one of the three lifting arm holes that aligns best with one of the nine cam holes.
  • Page 12 Floor Level and Inner Roll Stop Adjustments Usable Platform Length Do not adjust Linkage rod adjustment affects angle CAUTION of inner roll stop (vertical position). the inner roll stop linkage Improper inner roll rod unless stop linkage rod extra usable adjustment may platform length result in lift damage.
  • Page 13 Floor Level and Inner Roll Stop Adjustments Inner Roll Stop Occupied Sensor Adjustment Adjustment Nut The optimum setting for the inner roll stop occupied sensor adjustment nut is to have just enough pressure to fold and unfold the inner roll stop without triggering the inner roll stop occupied sensor.

  • Page 14: Lubrication Diagram

    Hinge Rollers Lower Closure Pivot Points (bearings) Pivot Points 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. LO - Light Oil...

  • Page 15: Maintenance And Lubrication Schedule

    Specified lubricants are available from operation. Contact your sales representative or call The Braun Corporation (part numbers below). The Braun Corporation. One of our national Product Support representatives will direct you to an autho- All listed inspection, lubrication and maintenance rized service technician who will inspect your lift.
  • 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 inner roll stop 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

    Power pack must be mounted vertically. PLATFORM 2.13 No oil (low) Use Braun 87010R (5606 aviation fluid). Do not mix with Dextron III or other hydraulic fluids. Check fluid level with platform lowered fully. Fill to maximum fluid level indicated on reservoir (speci- fied on decal).
  • 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 GO UP WITH 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

    Lift Wiring Schematic 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 USED OR / BK NOT FULL OUT LIFT OUT LIFT OUT BU / BK LIFT OUT NOT USED NOT USED...

  • Page 22: Contact Removal

    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 23: Hydraulics Diagram

    Hydraulic Diagram Arrow must face pump Arrow must face pump Page 21...

  • Page 24: 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 25: Pump Module Diagram

    Pump Module Diagram DOWN SOLENOID CIRCUIT SENTRY DOWN SOLENOID LIFT STOWED SIGNAL (OUTPUT) VEHICLE SECURE SIGNAL (INPUT) Page 23A Page 24A...

  • Page 26: Complete Lift

    Complete Lift Exploded View 31 27 31 27 Page 23B Page 24B...

  • Page 27: Repair Parts List

    Repair Parts List Item Qty. Description Part No. Item Qty. Description Part No. Housing Weldment 75101NW Plug, 1 1/2" x 2" x 11 Gauge Tube 81582 Clamp, Lift Mounting (5 Shown) 73733 Clamp, 1/4" I.D. Nylon Loop, Black 84396 Pin, Lower Cover 75736ESM Bracket, In/Out Switch Mounting 73719...

  • Page 28: Housing Detail

    Lift Housing Detail Exploded View 31 27 Page 26...

  • Page 29: Carriage Detail

    Lift Carriage Detail Exploded View 31 27 Page 27...

  • Page 30: Platform Detail

    Lift Platform Detail Exploded View Page 28...

  • Page 31: 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 32 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 33 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 34 NOTES This page intentionally left blank. Page 32...
  • Page 35 "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 36 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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