Braun Corporation UVL Series Service Manual

Public use wheelchair lifts

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Service manual (32 pages)

Service manual (38 pages)

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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

33392 Rev. A

May

2007

Service Manual for:

Under-Vehicle Lift

Public Use Wheelchair Lifts

Series

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

Patent #4,958,979

Read manual

before installing

or servicing lift.

Failure to do so

may result in

serious bodily

injury and/or

property damage.

W A R N I N G

Table of Contents

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Summary of Contents for Braun Corporation UVL Series

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 STATE must ﬁll out the other card and mail it to The Braun TO VALIDAT WARRANTY R GISTRATION CARDS MUST B R TURN D TO TH BRAUN CORPORATION. Corporation. The warranty is provided on the back Sample Warranty/Registration Card cover of this manual. The warranty cards must be processed to activate the warranty.
Page 3: Table Of Contents
Contents Troubleshooting and Maintenance Lift Terminology ............2 Switch and Sensor Locations ........3 ..4 Adjustments and Calibration ........5 ......6 Floor Level and Inner Roll Stop Adjustments ..6-9 ........... 10 Maintenance and Lubrication Schedule....11-13 ......14-17 Notes ................
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 W AR NI NG h T-ha uall ndle lock y mov fully Fail befo e plat form resu lt in lock driv...
Page 5: Switch And Sensor Locations
Switch and Sensor Locations Lift Out Limit Switch 73950A Full Out Cam Full Out Lift Out Cam 73775 Limit Switch 75776CN 73950A Pressure Transducer 30426 W AR Push T-ha ually ndle lock Failu befo enga e platf fully resu lt in drivi lock platf...
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 at ® signal.
Page 7: Adjustments And Calibration
Adjustments and Calibration The Lift Out Switch stops inward travel of the carriage/platform during Stow function 1. There must be no weight on platform. (activated by the housing-mounted Lift Out Cam). 2. Press handheld pendant UP switch to raise plat- Move cam in to increase inward travel.
Page 8: Floor Level And Inner Roll Stop Adjustments
Terminal Strip and Door Operators Terminal Strip To Door Openers Install optional power The pump-mounted terminal “Open” Trigger C_SW Orange O_RL door operators as strip provides additional inputs detailed in the instruc- and outputs that can be used IN_LK tions supplied with 12_V for optional door operators, Black...
Page 9 Floor Level and Inner Roll Stop Adjustments Inner Roll Stop Adjustment Inner Roll Stop inner roll stop Link- age rod adjust- ment is not ment may result in required unless lift damage. extra usable platform length is needed. If the angle of the inner roll stop (when in the vertical position) restricts the usable platform length for the wheelchair passenger, adjustment of...
Page 10 Floor Level and Inner Roll Stop Adjustments Inner Roll Stop Adjustment 3. Remove the 1/4 lock nut se- " curing the lifting arm cam bolt. See Photos D and E. Do not remove the bolt. level) using the manual op- eration system.
Page 11 Floor Level and Inner Roll Stop Adjustments Linkage rod adjustment affects angle of inner roll stop (vertical position). inner roll stop Improper inner roll less extra usable platform length is adjustment may needed. See Photo result in lift damage. H. If the angle of the inner roll stop (when in the vertical position) restricts the usable platform length for the...
Page 12 Maintenance and Lubrication Lubrication Diagram Drive Chain and Rollers Drive Chain Hydraulic Release Latch Cylinder Eccentric Shaft Pivot Points Rollers Torque (bearings) Tube Rolling Pivot Horizontal Points Carriage Arm Slot Area Lifting Arm Pivot Points Eccentric Shaft Rollers (bearings) Platform Cable-activated W AR NI NG h T-ha...
Page 13: Maintenance And Lubrication Schedule
Contact your sales representative or call The Braun Corporation (part numbers below). ® . One of our national Product Support representatives will...
Page 14 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 15 Maintenance and Lubrication Schedule Inspect limit switches for securement and proper Resecure, replace or adjust as needed. See adjustment Switch Adjustment. Correct, replace damaged parts and/or relubricate. Inspect carriage, lifting arm and eccentric shaft Correct, replace damaged parts and/or relubricate. rollers (bearings) for wear or damage, positive securement and proper operation Inspect external snap rings (e-clips):...
Page 16 Diagram, Electrical Sche- Troubleshooting and yourself. Contact your dealer matic, Hydraulic Diagram and repair procedures or call The Braun Corporation at Hydraulic Schematic are provided must be performed ® . One of our to aid in troubleshooting.
Page 17 Troubleshooting Diagnosis Chart FUNCTION POSSIBLE CAUSE REMEDY 4.11 Barrier down LED (D29) illuminated Barrier is down, barrier release pin partially out or barrier switch out of adjustment. Make adjust- 4.00 ments as necessary. LIFT WILL GO UP WITH Check full out switch for proper operation/adjust- OVERRIDE ment.
Page 18 Troubleshooting Diagnosis Chart FUNCTION POSSIBLE CAUSE REMEDY 9.11 Bad circuit breaker Check for proper operation of below stow switch. 9.00 Remove weight from platform. 9.12 Poor plug connections BARRIER WILL NOT OPERATE Check harness connectors A1 and A2, E1, N1, UP OR DOWN actuator out of adjustment WITH REMOTE...
Page 19 Troubleshooting Diagnosis Chart CONTACT REMOVAL 1. Remove orange wedge using 2. To remove the contacts, gently pull 3. Hold the rear seal in place, as needle nose pliers or a hook shaped wire backwards, while at the same removing the contact will displace wire to pull wedge straight out.
Page 20: Notes
NOTES This page intentionally left blank. Page 18...
Page 21: Lift Wiring Schematic
Wiring Schematic SW PWR SW PWR SW PWR C_SW O_RL IGN PWR IGN PWR IGN PWR BELOW STOW BELOW STOW BELOW STOW FULL OUT FULL OUT FULL OUT IN_LK 12_V NOT FULL OUT NOT FULL OUT NOT FULL OUT NOT USED LIFT OUT LIFT OUT LIFT OUT...
Page 22 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 Hydraulic Diagram Arrow must face pump Arrow must face pump Page 21...
Page 24 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 "VALVE T" WIRE ON ELECTRICAL BOARD DOWN VALVE "PUMP T" WIRE ON ELECTRICAL BOARD DOWN VALVE "12V" WIRE ON "GROUND" WIRE ON ELECTRICAL ELECTRICAL BOARD BOARD INLINE FUSE HOLDER "12V PWR" WIRE ON ELECTRICAL BOARD INLINE FUSE HOLDER INLINE FUSE HOLDERS Page 23...
Page 26: Complete Lift
Complete Lift Exploded View 31 27 31 27 Page 24...
Page 27 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 Lift Housing Detail Exploded View 31 27 Page 26...
Page 29 Lift Carriage Detail Exploded View 31 27 Page 27...
Page 30 Lift Platform Detail Exploded View Page 28...
Page 31 "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 32 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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