Braun VISTA Series Installation & Service Manual

Braun VISTA Series Installation & Service Manual

Commercial wheelchair lift
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Summary of Contents for Braun VISTA Series

  • Page 3 Disregard this supplement if you have a Series 01 product information available at the time of VL917IB Vista Series™ lift model. If you have a publication. The Braun Corporation reserves Series 02 lift model, read this supplement as well...
  • Page 4 Series VL917IB Supplement 29682 Series VL917IB Electrical Schematic Note: Shown with lift in stowed position. Revised: May 21, 2003 DRAWING SHOWN WITH DESCRIPTION SYMBOL LIFT IN STOWED POSITION BATTERY NOTE: ALL NON-CIRCUIT BOARD CHASSIS GROUND MOUNTED WIRES ARE 20 GA. UNLESS OTHERWISE NOTED.
  • Page 5 Series VL917IB Supplement 29682 Series VL917IB Wiring Diagram Note: Shown with lift in stowed position. Revised: May 21, 2003 Switch Box (As Viewed From Terminal Side of Switch) 9-COND WIRE CODE Power / Interlock COLOR BLACK - 6 COND. YELLOW - 6 COND. BROWN - 6 COND.
  • Page 6 Series VL917IB Supplement 29682 Series VL917IB Lift Interlock Installation The VL917 can be configured for use with a cus- tive logic mode. Below are the instructions for tomer supplied remote interlock with either a +12V proper negative logic (grounded) interlock installa- signal (positive logic) or a ground signal (negative tion.
  • Page 7 Series VL917IB Supplement 29682 Series VL917IB Lift Interlock Installation The VL917 can be configured for use with a cus- tive logic mode. To convert to a positive logic tomer supplied remote interlock with either a +12V interlock mode, follow the instructions below. See signal (positive logic) or a ground signal (negative supplement page 4 for negative logic mode hookup.
  • Page 8 (items 41 and 42) if a blue nylon patch is not present on the bolts when retrofitting an M268 pump assembly. Loctite ® is available from The Braun Corporation under part number 11522. Revised: May 21, 2003...
  • Page 9 (items 41 and 42) if a blue nylon patch is not present on the bolts when retrofitting an M258 pump assembly. Loctite ® available from The Braun Corporation under part number 11522. Not applicable for Control Box 6D and Harness 7D.
  • Page 10 Series VL917IB Supplement 29682 Series VL917IB Repair Parts List Revised: May 30, 2003 Part Numbers of Items Dedicated per Lift Model Item Qty. Description VL917IB VL917FIB Weldment, Base, Rear Pump 975R2148W33 975F2148W33 Plate, Pump Backing 975R0501 975F0501 Cover, Pump, 2-Piece, Back-Bottom 915R5513B 915F5513B Cover, Pump, 2-Piece, Top-Front, Assembly (Note: See Pump Module section for breakdown)
  • Page 11 Series VL917IB Supplement 29682 Revised: May 30, 2003 Series VL917IB Lift Exploded View Page 9 Series 02 VL917IB Supplement 29682 Page 9...
  • Page 12: Table Of Contents

    Contents Lift Terminology Systems Descriptions Lift Terminology Illustration ..........2 General Operation ............35 Introduction ..............3 Electrical ..............35-37 Direction ................3 Microswitches ............36 Lift Components .............. 3 Hydraulics ..............38-41 Lift Installation Troubleshooting Installation/Service Safety Precautions ....4, 5 Troubleshooting Diagnosis Chart ......
  • Page 13 Lift Terminology A left side (rear) pump-equipped mirrored image of left side (rear) terminology, direction and lift lift model is depicted in the pump models (pump module components are provided on illustration below. Right side located on opposite end of base page 3.
  • Page 14: Lift Terminology

    Direction: The terms "left Platform Assembly: The fold-in- (rear)," "right (front)," "inboard," half lift platform assembly is made Braun VL917 Vista Series lifts are and "outboard" will be used up of an inboard platform section ADA compliant and commercial throughout this manual to...
  • Page 15: Installation/Service Safety Precautions

    W ARNING manual or if the area prior to beginning installation procedures. instructions are not fully understood, contact The Braun Install lift and power platform to fully folded position before W ARNING Corporation immedi- removing shipping straps. ately. Failure to do...
  • Page 16 Disconnect the power cable at the battery prior to servicing. W ARNING Keep hands, arms and all other body parts clear of moving parts. W ARNING Never modify (alter) a Braun Corporation lift. W ARNING Replacement parts must be Braun authorized replacements. W ARNING Never install screws or fasteners (other than factory equipped).
  • Page 17: Pre-Installation Notes

    If the viced by a Braun authorized for the base plate to overhang seat is removed, keep all mount- service representative who has the stepwell.
  • Page 18 Pre-Installation Notes tion of the dual-cylinder VL917 Lift Ground area). Apply a protective coating Series, hydraulic fluid expansion, of grease to mounting hole to contraction or seepage may Two ground cables are provided. prevent corrosion. Failure to do occur. Any of these conditions One ground cable is connected to so will void warranty of certain can result in platform drift (failure...
  • Page 19: Lift Installation Instructions

    Lift Installation Instructions Installation Parts Please check the Installation Parts List and Tools List to see that you have everything needed to begin. Report any missing items. Part Number Item Qty. Description 12 Volt 24 Volt Installation Parts Package (complete) Includes all following items 29256A 29257A Bracket, Underfloor, Reinforcement...
  • Page 20 Lift Installation Instructions Figure A Position star washers and underfloor mounting hardware as specified (per chassis and floor configuration). Through Floor Only: Position star washer Star Washers between floor and 2-1/2" diameter body washer. Through Reinforcement Star Washer Brackets: Position star 2-1/2"...
  • Page 21: Lift Positioning

    Lift Installation Instructions Note: Read all Pre- Lift Positioning Installation Notes prior to installation. The lift towers (upright supports) and the vertical arms must be parallel (aligned) with the vertical sides of the door jamb and should be perpendicular (90˚) to the vehicle floor. W ARNING Install lift and power platform to fully...
  • Page 22 Lift Installation Instructions Clearance: Visually center the unit in the opening. Position the base plate parallel to (aligned with) the vehicle lift door sill or stepwell as shown in Figure D. Close the Lift must clear vehicle door(s). From inside, door mounted position the unit as close to the control box.
  • Page 23 Lift Installation Instructions Lift Positioning (continued) Rear Door and Extensive Floor-to-Ground Installations: Figure G Position the lift in the rear door Rear Door and 1/2" opening as outlined on page Extensive Minimum 10. Depending on the particu- Floor-to-Ground Clearance lar lift model installed and the Installations particular vehicle configuration, the top of the lift may need to...
  • Page 24: Lift Securement

    Lift Installation Instructions Lift Securement Base Plate Mounting Optimum Bolt Locations There must be a total of eight Mounting Mounting 3/8"-16 x 4" carriage bolts (or 8" Figure I Bolts Bolts bolts) securing the base plate Inboard through the floor. Two 3/8"-16 x 8"...
  • Page 25 Lift Installation Instructions Lift Securement (continued) Underfloor Reinforcement Brackets (continued) Two base plate mounting bolts must secure Technical Assistance: If the reinforcement brack- each bracket. ets will not work as detailed for your particular installation, call 1-800-THE LIFT for technical Underfloor reinforcement brackets must reach assistance.
  • Page 26 Lift Installation Instructions External Tooth Star Washers Eight 3/8" external tooth star washers are supplied between the chassis and the bar (see Figure L). with each lift. Position star washers as follows. Through Chassis: When securing base plate Through Floor Only: When base plate mounting mounting bolts through chassis subframe members, holes penetrate the floor only, position a star washer position a star washer between the chassis and the...
  • Page 27 Lift Installation Instructions Lift Securement (continued) Bolt Tightening Tightening of the base plate alignment of towers and vertical Mounting Bolt Torque Speci- arms while tightening. See Figure fications: 28 to 31 foot mounting bolts directly affects pounds. Adjustment to mount- vertical arm alignment and base M.
  • Page 28 Lift Installation Instructions Power Cable and Ground Cable Installation VL917 pump modules feature a pump mounted ground CAUTION cable and an external stud for connection of the lift power cable. A 1" I.D. plastic grommet is provided for Position and secure the power cable and ground cable access hole.
  • Page 29: Power Cable And Ground Cable

    Lift Installation Instructions Power Cable and Ground Cable Installation (continued) Power Cable: W ARNING A red rubber boot is supplied in the installation package to insulate the Route power cable power cable connection. Slip the boot onto the power cable end (with clear of exhaust terminal).
  • Page 30: Installation

    Lift Installation Instructions Mount the circuit breaker to the mounting bracket. Four .191" diameter holes spaced 1" apart are 100 Amp. Flush Mount provided in each mounting bracket. The holes Circuit Bracket match the pattern of circuit breaker mounting holes. Breaker 28755 Place the bracket securely in a vice gripping the...
  • Page 31: Control Box And Harness Installation

    Lift Installation Instructions Control Box and Harness Installation Groove Guide Quick-Disconnect Harness: “Quick-disconnect” hand-held controls are available with four types of cable (standard, armored and coiled). VL917 Series lifts are shipped without the control box harness installed. All harnesses are equipped with the same quick-disconnect sockets.
  • Page 32 Lift Installation Instructions Control Box Mounting: The control box mounts to storage clip bracket to the door as shown in Figure the inside face of the lift cargo door as shown in the Q on page 20. Insert control box storage clip in center photo below.
  • Page 33: Design Lifting Capacity

    Lift Installation Instructions Design Lifting Capacity Vista Series lifts are rated at a ration must support the lift and Positioning and Clearance design lifting capacity of 800 the lift load. Checklist and corresponding pounds. The combination of lift illustrations. Note: Refer to the...
  • Page 34 Lift Installation Instructions ✓ Positioning and Clearance Checklist Figure R Alignment: "Side" to "Side" Alignment: As viewed from outside the vehicle, the lift vertical arms and platform (when stowed) should be perpendicular (90°) to the vehicle floor and parallel (aligned) with the sides of door jamb (see points 8 and 9).
  • Page 35: Decal Application

    Lift Installation Instructions Platform Angle Adjustment and Floor Level Adjustments The platform angle and floor Note: When adjusting the Adjust the platform angle, level positioning of the bridge platform angle, the platform platform cables and bridge plate plate (inboard roll stop) must cables may require adjust- floor level positioning as de- be properly adjusted before...
  • Page 36: Quiet-Ride Adjustment Instructions

    Quiet-Ride Adjustment Instructions Adjustable Quiet-Ride Guided Stop Blocks and fixed installation procedures can result in potential rattles rubber bumpers mounted at key locations aid in also. If lift rattles occur, review the details in this eliminating or reducing potential rattles. Improper section for possible source(s) and remedies.
  • Page 37: Platform Angle Adjustment Instructions

    Platform Angle Adjustment Instructions W ARNING Outboard end of platform Adjust platform angle must contact as detailed here. ground first. Failure to do so may result in serious bodily injury and/or property damage. Wrong Adjusting the platform angle based on the relationship of the platform at ground level Wedges directly affects the angle of the platform when...
  • Page 38 Platform Angle Adjustment Instructions Adjustment Allen screws are end of the platform. Turn adjust- equally. Adjust platform angle ment screws counterclockwise as needed. See Figure T on provided on each side of the lift platform for adjusting the platform to lower the outboard end of the previous page.
  • Page 39: Floor Level Guideline Adjustments

    Floor Level Guideline Adjustments Wrong Must make full contact. Gap not permitted. Stop Block Guideline Stop blocks must make full contact with the edge of the vertical arms. Stop Block Vertical Arm Unfold/Down and Up/Fold Microswitches: The Floor Level Guideline Adjustments: The Unfold/ Unfold/Down and Up/Fold microswitches (limit Down and Up/Fold microswitches control platform switches) are located in the pump side tower.
  • Page 40 Floor Level Guideline Adjustments Wrong W ARNING Improper microswitch adjustment may Bump result in serious bodily injury and/or property damage. When adjusting microswitches, stop block positioning and bridge plate positioning must be viewed. A combination of adjustments may be required to achieve a proper balance. Platform too high.
  • Page 41 Lubrication Diagram Specified (Recommended) Lubricants Note: Lubricants specified in the Maintenance and Lubrication Schedule are available from The Braun Corporation (part numbers and details provided on page 34.) Page 29B Page 30B...
  • Page 42: Fold Arm Adjustments

    Fold Arm Adjustments Fold arm adjustment (length) controls the stow position of the platform sections and the outboard roll stop (see Photo K). The platform sections should fold together tightly and the outboard roll stop should rotate to the vertical position when the platform Platform stows.
  • Page 43: Maintenance And Lubrication

    Platform components exposed to there is any sign of wear, damage or improper operation. contaminants when lowered to the ground may Contact your sales representative or call The Braun require extra attention. Corporation at 1-800-THE LIFT. One of our national...
  • Page 44 Maintenance and Lubrication Schedule Perform all procedures listed in previous section also Roll stop foot pivot bearings (Item 3) Apply Light Grease - See Lubrication Diagram Upper/lower fold arm telescoping area (Item 8) Apply Light Grease - See Lubrication Diagram Platform pivot pin bearings (Item 9) Apply Light Oil - See Lubrication Diagram Platform fold axle bearings (Item 10)
  • Page 45 Maintenance and Lubrication Schedule continued Inspect external snap rings: Resecure or replace if needed. • Platform pivot pins (2 per pin) • Platform pivot/slide pivot pins (2 per pin) • Platform fold axles (1 per axle) • Inboard roll stop lever and bracket pins (1 per pin) ™...
  • Page 46 Repeat all previously listed inspection, lubrication Consecutive and maintenance procedures at 4 week or 400 4 Week or cycle intervals. 400 Cycle Intervals Specified (recommended) Available Braun Lubricant Type Lubricant Amount Part No. Light Penetrating Oil LPS2, General Purpose 11 oz.
  • Page 47: Systems Descriptions

    Systems Descriptions General Operation Braun VL917 Fully Automatic lifts Pressing the UNFOLD switch W ARNING are powered by an electric/ unfolds the platform from the hydraulic system operating two stowed position to floor level. Maintenance and single-acting hydraulic main The platform stops automatically repair procedures at floor level when fully unfolded.
  • Page 48 Systems Descriptions Electrical (continued) 5 Ampere Circuit Breaker: This circuit breaker is a Down solenoid/valve. When the platform reaches single pole, manual reset, thermally-operated circuit floor level, the solenoid/valve is de-energized by the protection device rated at 5 amperes that protects a Unfold/Down microswitch circuit.
  • Page 49: Microswitches

    Systems Descriptions Microswitches: Two mi- stowed position, the Unfold/Down Raise and Fold (In) Sequence: croswitches (limit switches) are microswitch is deactivated. When the platform is below floor incorporated in the VL917 electri- Current to the UNFOLD (Out) level, the Up/Fold microswitch is cal system (Unfold/Down and Up/ switch circuit energizes the Down activated.
  • Page 50: Hydraulics

    2100 psi. The platform. Fluid flows through the internal manifold Braun Pump Code for front or rear mounted 12 volt valve before reaching the Down valve. The Unfold/ M258 pumps is 33. Note: 24 Volt pumps are...
  • Page 51 Systems Descriptions Hydraulic Platform Sensor The platform sensor pressure Hydraulic 3/32" Hex Drive Pressure Switch: VL917 lift switch is mounted to the hy- Pressure Switch Adjustment Screw models are equipped with a draulic pump. This switch is hydraulic platform sensor activated when weight is on the pressure switch.
  • Page 52 (will adjustment on the pump unit not lift load) and then, only after Contact The Braun limits the maximum oil pressure in contacting The Braun Corpora- Corporation before the system to a safe level. It also tion. adjusting hydraulic keeps the amp draw and battery pressure relief valve.
  • Page 53: Troubleshooting

    Systems Descriptions Manual Backup Pump: The manual hydraulic Priming and Flushing Procedure: backup pump system is used to unfold, lower, raise and fold the platform in the event of electrical failure. a. Lower platform fully. See the lift posted Manual Operating Instructions b.
  • Page 54: Troubleshooting Diagnosis Chart

    Troubleshooting and yourself. Contact your sales by process of elimination. A repair procedures representative or call The Braun Wiring Diagram, Electrical must be performed Corporation at 1-800-THE LIFT. Schematic, Hydraulic Diagram as specified by an...
  • Page 55 Troubleshooting Diagnosis Chart FUNCTION SYMPTOM POSSIBLE CAUSE REMEDY continued continued 2.22 Misalignment or damage to: Correct/Replace/Lubricate. See • Parallel arms and/or pivot pins Maintenance and Lubrication Schedule and Diagram • Rotating pivot slide arms and/ or pivot pins • Handrails and/or pivot pins •...
  • Page 56 Troubleshooting Diagnosis Chart FUNCTION SYMPTOM POSSIBLE CAUSE REMEDY continued 4.31 Platform not raised 2" above Raise platform minimum 2" 4.30 ground level 4.32 Roll stop torsion spring(s) dam- Correct or replace 4.00 Fold aged, detached or missing Operation OUTBOARD 4.33 See 4.23, 4.24, 4.25, 4.26, 4.27, ROLL STOP 4.28 and 5.00 4.40...
  • Page 57 Troubleshooting Diagnosis Chart FUNCTION SYMPTOM POSSIBLE CAUSE REMEDY 6.11 Platform not fully raised Raise platform 6.12 See 1.00 and 5.25 6.13 Up/Fold Microswitch defective or out Adjust or replace. See Microswitches in of adjustment Systems Descriptions for details (page 6.10 6.14 Platform Hydraulic Pressure Sensor Adjust or replace.
  • Page 58: Lift Interlock Installation

    Lift Interlock Installation The VL917 can be configured for use with a cus- tive logic mode. Below are the instructions for tomer supplied remote interlock with either a +12V proper negative logic (grounded) interlock installa- signal (positive logic) or a ground signal (negative tion.
  • Page 59 Lift Interlock Installation The VL917 can be configured for use with a cus- tive logic mode. To convert to a positive logic tomer supplied remote interlock with either a +12V interlock mode, follow the insturctions below. See signal (positive logic) or a ground signal (negative page 46 for negative logic mode hookup.
  • Page 60: Lift Electrical Schematic

    Lift Electrical Schematic Note: Shown with lift in stowed position. DRAWING SHOWN WITH DESCRIPTION SYMBOL LIFT IN STOWED POSITION BATTERY NOTE: ALL WIRES 20 GA. UNLESS CHASSIS GROUND OTHERWISE NOTED. CIRCUIT BREAKER LIFT CONNECTORS SWITCH BOX JUNCTION YL (16) UNFOLD MOTOR FOLD SOLENOID...
  • Page 61: Lift Wiring Diagram

    Lift Wiring Diagram Note: Shown with lift in stowed position. Switch Box (As Viewed From Terminal Side of Switch) 9-COND WIRE CODE COLOR BLACK - 6 COND. YELLOW - 6 COND. BROWN - 6 COND. WHITE - 6 COND. Fold/Unfold GREEN - 6 COND.
  • Page 62: Guage Lift Control Box Electrical Schematic

    18 Gauge Lift Control Box Electrical Schematic LIFT SWITCH BOX Note: Applicable for 18 gauge OR (18) wiring harness control box UNFOLD 900-5903AQD. See page 48 for 16 gauge harness control FOLD BK (18) box schematic. W (18) Note: All other elements of schematic on page 48 are applicable for all lifts.
  • Page 63: Hydraulic Schematic

    Hydraulic Schematic Description Symbol Description Symbol Pump, Fixed Pressure Compensated Displacement Flow Control 2 Way 2 Position Pump Motor Solenoid Valve Backup Pump Relief Valve Cylinder, Single Pressure Switch Acting Check Valve Filter Screen Manual Reservoir, Shutoff Valve Vented Hydraulic Port Pressure Flow Flow...
  • Page 64: Rear Pump Hydraulics Parts List

    Rear Pump Hydraulics Parts List Item Qty. Description Part # Pump Assembly (M258 with Reservoir/with Backup Pump - Non Bridging) 28493-12V Motor, Pump - 12 Volt 14785-IS Valve Assembly, “Down” (complete) 26076-12V Cartridge (only), “Down” Valve - (shown below) 26078 Coil (only), “Down”...
  • Page 66: Pump Module

    ® to the three pump mounting bolts (item 39) if a blue nylon patch is not present on the bolts when retrofitting an M268 pump assembly. Loctite ® is available from The Braun Corporation under part number 11522. Page 54...
  • Page 67: Rear Pump Module Diagram

    (item 40) if a blue nylon patch is not present on the bolts when retrofitting an M258 pump ® assembly. Loctite available from The Braun Corporation under part number 11522. Not applicable for Control Box 6D and Harness 7D.
  • Page 68 Repair Parts - VL917IB Item Qty. Description Part No. Item Qty. Description Part No. Gas Spring, Fold Arm 27356 Weldment, Base, Rear Pump 977R0148W33 Ball Stud, Gas Spring, 13MM x 5/16-18 Female 26236 Grommet - I.D. 1.25/G.R./T.625 25916 Washer, 5/16", Lock 10068 Pin, Pivot, Parallel Arm 917-0403...
  • Page 69: Exploded View (Fold Out)

    VL917IB Lift Exploded View Note: Illustrations depict components as equipped when specified lift series was in production. Replacement components may reflect newer lift series configurations. 38 39 18 4 33 5 11-5-02 Update 11-5-02 Update Page 57A Page 58A...
  • Page 70: Decals And Antiskid

    This unit is designed to protect the electrical system on manual in lift pouch. Press FOLD switch until platform stops. Release switch. all Braun hydraulic wheelchair lifts. In the event of failure, 25674 CLOSE DOOR(S) wait 60 seconds. Then turn RESET lever to reset breaker. U.S. Patents: 5,261,779...
  • Page 71 MADE IN and Inspected By Decal #18229 AMERICA Actual Size: 1-11/16" W. x 1-3/16" T. 15641 Note: Made In MADE IN The Braun Corporation PO Box 310 Winamac, IN 46996 (574) 946-6153 LIFT MODEL # VL917IB SERIAL NUMBER America (only) 06-01003...
  • Page 72 WARNING 29051 Lift installation and servicing prohibited by anyone who has not been certified by The Braun Corporation Sales and Service School. Certified service technicians should call 1-800-THE LIFT to receive applicable installation/service manual. Failure to follow this policy may result in serious bodily injury and/or property damage.
  • Page 73 Decals and Antiskid Antiskid Inspect your lift for any missing or particular size and quantity of W ARNING worn antiskid. Call 1-800-THE antiskid is dependant on lift LIFT for replacements. Use of model. Order as needed. Replace missing or worn antiskid. Antiskid Failure to do so may result in serious...
  • Page 74: Warranty And Registration Policy

    ADDRESS CITY Serial No. Pump Code TELEPHONE STATE TO VALIDATE WARRANTY REGISTRATION CARDS MUST BE RETURNED TO THE BRAUN CORPORATION. Series No. Date of Manufacture Sample Warranty/Registration Card Sample Serial No./Series No. Identification Tag Model No. Pump Code Note: Retain this information for future use.
  • Page 75: Lift Specifications

    Lift Specifications The following specifications are basic to the electrical/hydraulics operations. Further technical specifications and details of components are provided in the Systems Descriptions and Troubleshooting sections located within this manual. Note: Lift weights applicable for rear and front pump lift models. Lift Model VL917IB Lift Weight...
  • Page 76 Lift Specifications OPERATIONS CYCLE TIME CHARTS POWERED OPERATIONS - 48" Floor to Ground Duration Average Average Length of Travel Operation Length of Travel Minimum to Maximum Duration per Duration Full Stroke Cycle 7.91 sec. to 10.24 sec. 9.075 sec. Full Stroke Cycle Platform Unfold 48"...
  • Page 77: Lift Dimensions

    The chart below provides dimensions of standard produc- Minimum Clear Door Opening Dimensions are defined tion Braun Vista Series Lift models. Refer to the illustra- as finished door opening, including any intrusive door tions on the opposite page and the chart below to jambs, headers, sills or hinges.
  • Page 78 Lift Dimensions Rear Pump Front Pump Lift Models Lift Models *Automatic Inboard Roll Stop (IB) *Automatic Inboard Roll Stop (IB) Important: Minimum Clear Door Opening Dimensions are defined as finished door opening, including any intrusive door jambs, headers, sills or hinges. Any intrusive obstructions within the Clear Door Rear Pump lift...
  • Page 79 "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...

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