Braun A5 User Manual

Service Manual for:

CKA

Vista

HZg^Zh

Public Use Wheelchair Lifts

Series A5

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 multipurpose passenger vehicles other than motor homes with a gross vehicle weight rating (GVWR) that exceeds 4,536 kg (10,000 lb).

R N I N G

Man

ual

"Providing Access to the World"

International Corporate Hdqrs: P.O. Box 310 Winamac, IN 46996 USA

1-800-THE LIFT

33917 Rev. A

February

2008

(574) 946-6153 FAX: (574) 946-4670

Patent #5,261,779

Patent #6,065,924

Patent #6,238,169

Patent #6,464,447

Patent #6,599,079

Patent #6,692,217

Patent #6,739,824

Patent #6,837,670

® ®

Patents Pending

Read manual before installing or servicing lift. Failure to do so may result in serious bodily injury and/or property damage.

Braun NVL Series

OWNER'S WARRANTY REGISTRATION

PURCHASED FROM

DATE INSTALLED

NAME

ADDRESS

CITY

TELEPHONE

TO VALIDATE WARRANTY

REGISTRATION CARDS MUST BE RETURNED TO THE BRAUN CORPORATION.

OWNER

STATE ZIP

Congratulations

We at The Braun Corporation wish to express our fullest appreciation

on your new purchase. With you in mind, our skilled craftsmen have designed and assembled the ﬁnest lift available. This manual provides service-related material. Refer to the FMVSS No. 403 Quick Reference Installation Sheet for installation instructions, operating instructions and maintenance procedures. Braun Vista Series™ lifts are built for dependability and will provide years of pleasure and independence as long as the lift is installed and serviced as speciﬁed by a Braun certiﬁed technician, and the lift is operated by an instructed person.

Sincerely, THE BRAUN CORPORATION

Ralph W. Braun Chief Executive Ofﬁcer

Warranty and Registration Instructions

Immediately upon receiving the lift, examine the unit for any damage. Notify the carrier at once

Series No. Pump Code

Serial No.Model No. Cylinder Code

with any claims.

NVL917IB A5-00025 55 14CG

Two warranty/registration cards (shown right) are located in the lift-mounted manual storage pouch. The sales representative must process one of the cards. The consumer must ﬁll out the other card and mail it to The Braun Corporation. The warranty is provided on the back cover of this manual. The warranty cards must be processed to

Sample Warranty/Registration Card

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 opposite pump side vertical arm. A second I.D. tag is located on the opposite pump side tower. Both I.D. tags provide the product identiﬁcation information provided on the warranty/registration card. Record the information in the space provided (or document on a copy). This information must be provided when ﬁling a warranty claim or ordering parts.

The Braun Corporation

1-800-THE LIFT™

BRAUNLIFT.COM™

DOT Public Use Lift MODEL#

NVL917IB

Max. Lifting Capacity - 800 lbs.

SERIAL NUMBER

A5-00025

PUMP CODE CYLINDER

55 14CG

MFG DATE

09/20/06

e5*72/245*95/54*0110*00

PATENT

5,261,779-6,065,924-6,238,169-6,46

PENDING-

4,447-6,599,079-6,692,217-6,739,824

Model No.

Series No.

Serial No.

Pump Code

Cylinder Code

Sample Serial No./Series No. Identiﬁcation Tag

Date of Manufacture

Contents

Troubleshooting and Maintenance

Lift Terminology............................................................. 2

Switch and Sensor Locations ..................................... 3

Certiﬁcation Checklist Diagnostic Procedures ......... 4

Platform Fold Pressure Adjustment ............................ 5

Platform Angle Adjustment ....................................... 6-7

Platform Stop Blocks .................................................... 7

Platform Foor Level Adjustment .................................. 8

Bridging Microswitch Adjustment ............................... 9

LCD Lift Codes ....................................................... 10-11

Lubrication Diagram .................................................... 12

Maintenance and Lubrication Schedule ............... 13-16

Lift Electrical Schematic ............................................ 17

Lift Wiring Diagram .................................................... 18

Hydraulics

Hydraulic Schematic .................................................. 19

Hydraulics Parts List .................................................. 20

Hydraulics Diagram .................................................... 21

Repair Parts

Pump Module

Pump Module Parts List ....................................... 22

Pump Module Diagram ......................................... 23

Lift Exploded View

Repair Parts List .................................................... 24

Exploded View ........................................................ 25

Notes ............................................................................ 26

Page 1

Hand-Held

Pendant

Control

9 1 8 2 3

OWN D

L O F UN

0 2 8 2 3

FOLD

Visual

Threshold

Warning

Threshold

Audible

Warning

(not visible)

Lift Terminology

Towers (2)

Lift-Tite™ Latches (2)

Top Parallel Arms (2)

Main Cylinders (2)

Unfold Assist Compression Springs (2)

Adjustable Quiet-Ride Stow Blocks (2)

Platform Lights

Vertical Arm Covers (4)

Pump

Module

(Rear)

Base Plate

Bottom Parallel

Arms (2)

Upper Fold Arm (2)

Lower Fold Arm (2)

Saddle (2)

Pump Side Vertical Arm

Threshold

Warning

Plate

Platform Side Plates (2)

Handrails (2)

Opposite Pump Side Vertical Arm

Inner Roll Stop

Inboard

Platform

Outboard

Platform

Outer Barrier

(Automatic Outboard Roll Stop)

Page 2

Inboard

Left

Right

Outboard

Switch and Sensor Locations

Inboard

Right

Threshold Strip Switch 31221A (Qty. 2)

*Stow Microswitch

23184 (Qty. 2)

*Rotary Position Sensor

31194A

Left

9 1

8 2 3

W O D

P U

LD FO N

2 8 2 3

Outboard

*Ground Detect

Magnet 31664

*Ground Detect

Magnetic Sensor 30433A60

*IB Occupancy

Microswitch Assy. 31643A

*Note: Mirror image for right (front) pump lifts.

*Bridging

Microswitch 975-0443RNA 975-0443FNA (Front Pump)

(Rear Pump)

*Outer Barrier Raised

Magnetic Sensor 30433A60

*Outer Barrier

Raised Magnet 31664

Page 3

Certiﬁcation Checklist Diagnostic Procedures

The following operations and conditions must be functionally veriﬁed in order for the lift to be FMVSS 403/404 compliant. If an operation does not function as described or a condition is not met, follow the referenced procedures to correct the problem or contact a Braun Corporation Product Support representative at 1-800-THE LIFT

• Vehicle movement is prevented unless the lift door is closed, ensuring the lift is stowed.

1. Verify on the pump module mounted interlock connector that the lift not stowed signal (pin 5) has an open signal - OR - lift stowed signal (pin 7) has a +12 volt signal - OR - (pin 9) has a ground signal (depends on interlock used).

2. Refer to the interlock installation instructions.

• Lift operation shall be prevented unless the vehicle is stopped and vehicle movement is prevented.

1. Verify vehicle secure signal (pin 6) has a +12 volt signal.

2. Refer to the interlock installation instructions.

• The platform will not fold/stow if occupied.

- Refer to Platform Fold Pressure Adjustment procedures.

• The inner roll stop will not raise if occupied.

- Call Product Support

• The outer barrier will not raise if occupied.

- Call Product Support

• Verify platform lighting when lift is deployed and pendant illumination when lift is powered.

1. Replace bulb(s) in the light housing.

2. Check fuse (5 amp fuse on circuit board; F13)

• A visual and audible warning will activate if the threshold area is occupied when the platform is at least 1"

below ﬂoor level.

1. Remove the threshold warning plate

2. Verify the threshold strip switch connectors are connected

3. Replace the threshold strip switch

4. Reinstall the threshold warning plate

• Platform movement is prohibited beyond the position where the inner roll stop is fully deployed (up).

- Call Product Support.

• Lift platform movement shall be interrupted unless the outer barrier is deployed (up).

- Call Product Support.

Page 4

Platform Fold Pressure Adjustment

1. Position the platform at the ﬂoor level loading position.

2. Loosen the hex nut on the adjustment screw (do not remove hex nut).

3. Turn the adjustment screw counter clockwise until the platform does not fold when the Fold button is pressed.

4. Turn the adjustment screw clockwise in 1/4 turn increments and press the Fold button until the platform folds completely (Note: Return the platform to ﬂoor level position after each attempt to fold the platform).

5. Turn the adjustment screw an additional 1/8 turn after the platform folds successfully.

6. Tighten the hex nut without moving the adjustment screw.

7. Verify the platform will not stow while occupied.

DO NOT adjust this valve!

Platform Fold Adjustment Allen Screw

(located beside solenoid valves)

Note: Secure adjustment screw and tighten hex nut following adjustment.

Page 5

Platform Angle Adjustment

Adjusting the platform angle based on the relationship of the platform at ground level directly affects the angle of the platform when positioned at ﬂoor level.

Unfold the lift and visually examine the angle of the platform when positioned at ﬂoor level. Lower the platform fully and note the angle of the platform when it reaches ground level also. The outboard

end of the platform (toe) must contact the ground ﬁrst when the platform is

lowered (all lift models).

Millennium “NL” Series:

The platform angle should be adjusted so there is a balance between the angle at both positions (equal amount of angle). Angle A should equal angle B as shown in Figure C.

Century “NCL” Series: Vista “NVL” Series:

The platform angle must be adjusted so the outboard end of the platform (toe) is angled down slightly when positioned at ﬂoor level. See Figure D. The outboard end of the platform must contact the ground ﬁrst to ensure the spring-loaded outer barrier unfolds fully.

Adjustment Procedures: Adjustment Allen screws are provided on each side of the lift platform for adjusting the platform angle. Details and photos are provided on the opposite page.

Wedges

Approximately

1” Clearance

Inboard

Millennium “NL” Series

Figure C

Angle A

equals

Angle B.

✓

Floor Level

Outboard

Century “NCL” Series

Vista “NVL” Series

Figure D

Base Plate Wedges: Installations where base plate wedges are used require more platform angle adjustment than normal.

Platform Stop Blocks: When adjusting platform angle, ensure both

stop blocks are making full contact with the vertical arms (details on

opposite page).

Floor Level Adjustment: Following platform angle adjustment, set ﬂoor level positioning as detailed in

Platform Floor Level Adjustment

(details on page 8).

Page 6

Wedges

Inboard

Toe must

angle down

slightly.

Floor Level

Barrier

must

unfold

fully.

Outboard

Platform Angle Adjustment

Adjustment Allen screws are provided on each side of the lift platform for adjusting the platform angle. Adjust platform angle as speciﬁed on previous page.

Platform Angle

Adjustment Screws

To raise the outboard end of platform - turn adjustment screw clockwise.

To lower the outboard end of platform - turn adjustment screw counterclockwise.

Turn

counter-

clockwise

to lower

outboard

end of

platform

Turn

clockwise

to raise

outboard

end of

platform

Note: Both adjustment screws must be adjusted equally.

Apply Loctite

to adjustment

screws following adjustment.

Adjustment Screw Allen Head

Platform Stop Blocks

Right Wrong

Must make full contact.Gap not permitted.

Stop Block Guideline

All Lift Models

Both stop blocks must make full contact with

Vertical

Arm

Stop

Block

the edge of vertical arms.

Vertical

Arm

When adjusting platform angle, setting ﬂoor level position or adjusting bridging microswitch -

ensure both stop blocks are making full contact with the vertical arms.

Stop

Block

Page 7

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