background image

Wiring Schematic

NUVL

PC

BOARD

#100419-001

 #100439-001

PENDANT

HAND

6

5

4

3

J2

3

P2

2

6

5

4

2

1

1

5
6

J4

3
4

2

1

YL
GN
RD
BK
WH

5
6

P4

3
4

2

1

BU

NOT USED
NOT USED

WH

GN

OR

BU/BK

NOT USED

BK

NOT USED

RD

BK/GY

WH/BK

BU

BK/RD

A1

A

J

G

C

H

L

K

B

I

F

D

E

RD

+
-

BK

CUSTOMER 

PLATFORM

LIGHTS

THRESHOLD

MAT

TO MCI

POWER

RELAY

#34392A

#33879A

1
2

WH
BK

LIGHTS
LIGHTS

1

2

U1

WH

BK

MAT

MAT

1

2

BEEPER / STROBE

ALARM

RD

BK

1

2

OR

BK/OR

ALARM

ALARM

1

2

T2

T1

LIFT DEVICES

RD
GN
OR
BU

BK
WH

GN / BK
OR / BK
BU / BK
BK / WH

RD / BK

BELOW STOW
FULL OUT
SW 1
LIFT OUT

SW PWR
IGN PWR

GND SENS
SAFETY

FLOOR LVL

BAR DN

BELOW STOW
FULL OUT
SW 1
LIFT OUT

SW PWR
IGN PWR

GND SENS
SAFETY

FLOOR LVL

BAR DN

INBRD BAR

INBRD BAR

1
2
3
4
5
6
7
8
9

10

11

12

RD
GN
OR
BU

BK
WH

GN / BK
OR / BK
BU / BK
BK / WH

RD / BK

1
2
3
4
5
6
7
8
9

10

11

12

BU / WH
BK / RD
NOT USED
NOT USED

RD / WH
GN / WH

WH / RD
OR / RD
BU / RD
RD / GN

NOT USED
NOT USED

MOT OUT PWR
MOT IN PWR
MOT IN PWR
MOT OUT PWR

BAR UP PWR
BAR DN PWR

BAR DN PWR
BAR UP PWR

MOT OUT PWR
MOT IN PWR
MOT IN PWR
MOT OUT PWR

BAR UP PWR
BAR DN PWR

BAR DN PWR
BAR UP PWR

BU / WH
BK / RD
WH / RD
OR / RD

RD / WH
GN / WH

BU / RD
RD / GN

POWER PACK / LIFT HOUSING

HARNESS #75910RMNA

D2

E2

BELOW STOW
FULL OUT
SW 1 
LIFT OUT

SW PWR
IGN PWR

GND SENS
SAFETY
INBRD BAR
FLOOR LVL

BAR DN

BAR UP

 PWR

BELOW ST

OW

FULL

 OUT

SW 1

BAR DN

SW PWR

BAR DN PWR

BAR UP

 PWR

BAR DN

SW PWR

BAR DN PWR

SAFETY

INBRD BAR

FLOOR L

V

L

SW PWR

IGN PWR

LIFT OUT

GND SENS

RD

RD

GN

GN

OR

OR

BU

BU

BK

BK

BK

WH

WH

1
2
3
4
5
6

GN / BK
OR / BK
BU / BK

BK / WH

SW 0

RD / BK

RD / BK

7
8
9
10
11
12

BU / WH

BU / WH

BK / RD

BK / RD

NOT USED
NOT USED

RD / WH
GN / WH

1
2
3
4
5
6

WH / RD

WH / RD

OR

OR

BK

BK

BK

OR / RD

OR / RD

BU / RD
RD / GN

NOT USED
NOT USED

7
8
9
10
11
12

LIFT HOUSING / CARRIAGE

HARNESS #75920RMNA

IN-OUT

MOTOR

M

NOT USED

BU

A

B

C

A

B

C

BK

BK

W

RR

NO

NC

C

NOT USED

BU

A

B

C

A

B

C

BK

BK

WH

WH

RD

RD

NO

NC

C

BK

BK / WH

NOT USED

A

B

C

A

B

C

BK

BK

WH

WH

RD

RD

NO

NC

C

BK

NOT USED

GN / BK

A

B

C

BK

GN

A

B

C

A

B

C

BK

BK

WH

WH

RD

RD

NO

NC

C

BK

NOT USED

RD

RD

A

B

C

A

B

C

BK

BK

WH

WH

RD

RD

NO

NC

C

LIFT OUT

FLOOR LVL

FULL OUT

BELOW STOW

RD / BK

BK

RD / WH
GN / WH

RD / BK

BK

RD / WH

GN / WH

BK / WH

BU / BK

WH

BK

BU

OR

GN

RD

OR / BK

GN / BK

RD / BK

BK

RD / WH

GN / WH

BK / WH

BU / BK

WH

BK

BU

OR

GN

RD

OR / BK

GN / BK

RD / BK

RD / BK

BK

BK

RD / WH

GN / WH

BK / WH

BU / BK

WH

BK

BU

OR

GN

RD

OR / BK

GN / BK

RD / WH

GN / WH

BK / WH

BU / BK

WH

BK

BU

OR

GN

RD

OR / BK

GN / BK

1
2
3
4

BK / W

BK

BK

OR

GN

GN

RD

RD

GN / BK

BELOW STOW

BELOW STOW

FULL OUT

FULL OUT

SW 1 

FLOOR LVL

SW PWR

IGN PWR

LIFT OUT

GND SENS

H1

J1

L1

N1

G1

E1

F1

D1

H2

J2

L2

N2

M1

M2

G2

 #75960NA

NOT USED

NOT USED

A

B

C

BK (+IN)

RD (-OUT)

STOW / GND SENS

A

B

C

A

B

C

RD
GN
OR
BU

BK

WH

1
2
3
4
5
6

GN / BK
OR / BK
BU / BK

BK / WH

WH / BK

RD / BK

7
8
9
10
11
12

1
2
3
4
5
6
7
8
9

10

11

12

RD
GN

YL / WH

BU

BK
WH

BK / GY
OR
BU / BK
WH / BK

DK BU

BK / RD

BU / WH

BK / RD

WH / RD

OR / RD

RD / WH
GN / WH

1
2
3
4
5
6

BU / RD
RD / GN

7
8

1
2
3
4
5
6
7
8

GN
OR
BU
WH / BK

BK
WH

OR / RD
BK / GY

A2

A1

B2

B1

1
2

OR
LT BU / BN

3
4

BK

WH

BAR UP

LIFT OUT

BAR DN

LIFT IN

R

W

SER

VICE / INTERLOCK LED

Y2

#31235RMA

OR

LT BU / BN

BK
WH

WH

1

2

RD

OR/RD

PUMP

VA

LV

E

GND
24V-B

BK
RD

BK

BK

WH

PUMP

HYDRAULIC

PUMP MOTOR

M

MOTOR

SOLENOID

WH

RD

RD

RD

CIRCUIT
SENTRY

GROUND

GROUND

GROUND

BATTERY

DOWN

SOLENOID

1

2

RD

RD

WH

BU

BU

HIGH OUTPUT 

24V INPUT

LOW OUTPUT

WAKE UP

1
2
3
4

1
2
3
4

YL / BK

YL / WH

GY / PK

DK BU

RD

INTERLOCK

LIFT POWER SWITCH

7

8

9

6

5

4

3

2

1

#31730A

(LIFT ST

OWED SIGNAL

 +12V OUTPUT)

GY

 / RD

GY

 / PK

X1

X2

7

8

9

6

5

4

3

2

1

YL

 / WH

YL

 / BK

L

T

 GN / GN

RD / WH

DK BU

GROUND

YL

 / L

T

 BL

GY

 / RD

GY / RD

GY / RD

1

2

3

1

2

3

4

DOOR OPERATOR

INTERLOCK

HAND - 1

#33470A

#33486A

#34247A

#33476A

#33487A

#34219A

2

1

4

3

5

7

6

9

8

10

11

12

A

B

MAT

POWER

1

2

WH

BK

1

2

#33488RMA

CARRIAGE / PLATFORM

HARNESS #75930RMNA

 #34040A

1
2
3
4

BK
BK

BK

BK

BK

BK
BK

F2

P1

P2

N1

N2

R2

J2

Q1

RD

NOT USED

NOT USED

BK
GN

BU

A

B
C

BK

BK

WH

WH

RD

RD

BK
BK

1
2

1
2

RD
BK

BK

RD

BK

BARRIER ACTUATOR

MOTOR 74340-24V-RMN

SEAT BELT

SWITCH

M

BK

WH

RD

NO

NC

C

A

B
C

BAR DN

BAR UP PWR

SW PWR

SAFETY

BAR DN SW

INBRD BAR

BAR DN PWR

BU

BK

1
2

1
2
3

A
B
C

R1

WH

NOT USED

BU

1
2
3

 #73950RMNA

 #33197A

RD

BK
GN

SWITCH

INBRD BAR OCC

S2

S1

NOT USED

BK
BK

1
2
3

1
2
3

NOT USED

3

Q2

RD

BK
GN

1
2
3

RD

BK
GN

1
2
3

 #34032A

 #34031A

WH / BK

WH / BK

SW 0

SW 0

NOT USED

WH / BK

WH / BK

WH / BK

WH / BK

SW 0

WH / BK

SW 0

A

B

C

NOT USED

WH / BK

A

B

C

BK

A

B

C

NOT USED

OR

A

B

C

BK

1

2

THRESHOLD

MAT

#33880A

WH

BK

MAT

MAT

1

2

1

2

J1

OR / BK

NOT USED

1
2

BU / BK

3

INBRD BAR

SAFETY

OR / BK
BU / BK

DK BU

YL / WH

SW 1 / SW 0 PORT

NOT USED

GY / RD

1

2

3

GY / RD

DK BU

YL

 / WH

DK BU

YL

 / WH

SW 0

SW 1

BK

BIT_0

BIT_1

FULL_CLOSED

1

2

3

#34231A

YL

 / BK

YL

 / WH

WH

BK

1

2

TO MCI 

DOOR

OPEN/CLOSE

1

2

3

4

#34232A

A

B

C

BK

BK

WH

WH

RD

RD

NO

NC

C

SWITCH 1 OPEN

I1

A

B

C

BK

BK

WH

WH

RD

RD

NO

NC

C

SWITCH 0 CLOSE

I2

GY

 / PK

RD / WH

RD / WH

RD / WH

RD
BN

1
2

1

2

RD
BK

RD
BK

BN

TO MCI 

BIT 0/1

NO

NC

C

BU
BK

1
2
3

GY

BU

GY

1

2

1

2

PUMP

VA

LV

E

ALARM

LIGHTS

1
2
3
4

2

1

Lift:

DATE:

03.31.2009

       NUVL855RM24  (MCI)

100419-001 CONTROL BOARD WIRING SCHEMATIC

M

SYMBOL

DESCRIPTION

BATTERY

CHASSIS GROUND

CIRCUIT BREAKER

CONNECTORS

JUNCTION

MOTOR

SOLENOID

OR RELAY

SWITCH

MICROSWITCH

SOLENOID

RELAY

86
87

87A

85

30

FUSE

DIODE

PRESSURE

TRANSDUCER

LED

BEEPER

LAMP

NO

NC

C

K E Y

TO MCI 

DASH MOUNTED

INTERLOCK SWITCH

Page 20A

Page 19A

Summary of Contents for Under-Vehicle Lift A1 Series

Page 1: ...NUVL855RM24 NUVL855RM24 Public Use Wheelchair Lifts A1 Series A1 Service Manual for 34807 Rev C May 2012 www braunlift com DOT Public Use Lift DOT Public Use Lift DOT Public Use Lift verifies that thi...

Page 2: ...tion card Record the information in the space provided or document on a copy This information must be provided when ling a warranty claim or ordering parts Warranty and Registration Instructions Immed...

Page 3: ...nts 7 11 Lubrication Diagram 12 Maintenance and Lubrication Schedule 13 15 Troubleshooting Diagnosis Chart 16 19 Lift Wiring Schematic 19A 20A Contact Removal 19B Hydraulics Hydraulic Parts List 20B H...

Page 4: ...ft handr ail latch handl es deplo y handr ails up to vertic al positi on and lower latch handl es fully 3 Lift outer barrie r to vertic al positi on 4 Latch handr ail belt 5 Press UP switc h until pla...

Page 5: ...ed fully inside yellow bound aries Wheel chair brakes must be locked Inner roll stop and outer barrie r must be up Failur e to follow these rules may result in seriou s bodily injury and or prope rty...

Page 6: ...on wires going out to lights A visual and audible warning will activate if the threshold area is occupied when the platform is at least 1 below floor level 1 Make sure connectors to threshold mat are...

Page 7: ...side jam nut to eliminate visible chain sag but do not overtighten 5 Lock jam nuts together Unlock and push the manual cable in fully Lock release cable Move the platform in and out until platform cha...

Page 8: ...TLV SW 1 1 LOUT SW 1 FOUT SW 1 1 1 1 1 FLV SW 1 OBAR SW 1 1 1 1 1 1 GND LVL 1 1 MAT SW 1 when mat is activated IBAR SW 1 when inner roll stop is activated DO SW 1 when door is full open or pin 3 and p...

Page 9: ...adjust ment may result in lift damage Achieving proper floor level posi tioning of the platform and inner roll stop requires a combination of Floor Level switch adjustment and inner roll stop cam adju...

Page 10: ...ot rest solidly on ve hicle floor or the angle is more than 7 open the hand pump valve turn counterclockwise to lower platform slightly 1 4 to 1 2 Close valve See Figure A 5 Reset the floor level swit...

Page 11: ...ivated cam depresses switch Tighten the clamp securing the cam 8 Using the control pendant check floor level position by lowering the platform to stow level and then pressing the UP but ton until the...

Page 12: ...block resulting in damage to the cam follower bearing the cam and or other components F Floor Level and Inboard Locator Adjustments Usable Platform Length Inner Roll Stop Linkage Rod G H 1 1 2 Minimu...

Page 13: ...position turn the sensor activation bolt clockwise until alarm is not activated See Photo J The optimum setting for the inner roll stop occupied sensor adjustment nut is to have just enough pressure t...

Page 14: ...unfold s to floor level TO UNLO AD PASS ENGE R 1 Load passe nger onto platfo rm and lock whee lchair brake s 2 Press DOWN switc h until platfo rm stops 3 Close bus door fully 4 Press DOWN switc h unt...

Page 15: ...500 cycles maintenance pro cedures These intervals are a general guideline for scheduling mainte nance procedures and will vary according to lift use and conditions Lifts exposed to severe condi tions...

Page 16: ...low off platform also Deploy lift remove inboard and outboard lower pans and clean housing tracks Check drive chain tensioner jam nuts and con necting link for securement and or misalignment Inspect d...

Page 17: ...spect eccentric shaft pins bearing mounting screw washers and securement hardware for wear or damage positive securement and proper operation Inspect torque tube cams for securement wear or damage Ins...

Page 18: ...asure 7 8 from the bottom of fill tube to locate fluid level 3 11 Up Solenoid 3 12 Bad power and ground 3 00 PUMP DOES NOT RUN WITH OVERRIDE SWITCH OR HAND HELD PENDANT Check for power on pump black w...

Page 19: ...veral times Troubleshooting Diagnosis Chart 6 00 LIFT WILL GO DOWN WITH OVERRIDE SWITCH BUT NOT WITH HAND HELD PENDANT 6 11 Full Out switch out of adjustment or defective 6 12 SW0 and or Door Full Clo...

Page 20: ...Calibration on page 5 Latch handrail belt Check connectors F1 F2 N1 and N2 11 00 BARRIER OPERATES WITH OVER RIDE SWITCH BUT WILL NOT GO DOWN WITH HAND HELD PENDANT 11 11 Faulty Pressure Transducer 11...

Page 21: ...N1 G1 E1 F1 D1 H2 J2 L2 N2 M1 M2 G2 75960NA NOT USED NOT USED A B C BK IN RD OUT STOW GND SENS A B C A B C RD GN OR BU BK WH 1 2 3 4 5 6 GN BK OR BK BU BK BK WH WH BK RD BK 7 8 9 10 11 12 1 2 3 4 5 6...

Page 22: ...g Hydraulic Quick Connect x 1 4 Female NPT 87614 22 1 Nipple Hydraulic Quick Connect x 1 4 Female NPT 87615 23 1 Elbow 90 1 4 NPT Street 10114 24 1 Nut 9 16 18 Hex Jam 83077 25 1 Fitting Assembly Bulk...

Page 23: ...raulic Diagram 34 28 29 30 32 35 35 31 26 18 25 33 33 19 21 22 23 24 17 34 27 28 29 Front Cylinder Rear Cylinder 14 1 2 3 6 5 4 16 9 10 11 15 7 12 8 11 13 36 37 38 17 Arrow must face pump Arrow must f...

Page 24: ...SOLENOID 73907A 1 29 30 JUMPER ASSY 12GA X 4 73943A 1 31 ADAPTER 1 4M TO 7 16M JIC 37 10130 2 32 HOSE ASSY 202 1 4 DIA 32785A 202 1 33 COUPLING HYDRAULIC QUICK1 4NPT 87614 1 34 FITTING 90 DEG 1 8PX1...

Page 25: ...Page 23 Pump Module Diagram 30 52 30 6 42 38 39 31 29 28 41 35 9 2 11 4 50 43 44 24 27 12 16 46 40 25 47 47 53 45 1 18 26 21 20 22 23 55 19 14 13 10 15 36 37 33 32 34 3 8 7 48 54 49 53 5 51 17...

Page 26: ...W 1 4 20 X 1 1 2 WSHER HD TYP F 4 24750 14 32 82755 SCREW 10 32 X 3 8 PHP ZP THD CUT HOUSING WMT 855RM 22 1 75101RMNW PART NO QTY ITEM DESCRIPTION CHAIN RELEASE ASSY 24 23 1 73760A CAM REAR BARRIER FO...

Page 27: ...Assembly 20 37 16 27 5 5 40 38 23 38 27 39 2 14 8 4 25 39 15 15 22 17 19 31 14 42 42 42 27 14 14 14 9 36 14 14 18 14 14 14 14 14 14 14 30 14 41 41 41 38 40 13 13 7 21 12 6 3 28 35 40 27 40 12 34 1 40...

Page 28: ...PIN 4 25 31137 4 29515 BEARING 75 ID X 625 LG 12DU10 COVER IDLER ARM WIRING 75742 1 26 PIN CYLINDER ROD MOUNTING BLACK OXIDE 2 29 75701N CYLINDER ASSEMBLY FRONT NUVL855CFST 1 30 75801CFNA 27 26948 5...

Page 29: ...12 2 17 23 24 14 21 40 42 2 28 20 14 54 54 54 36 15 46 4 21 49 34 32 33 53 2 22 46 43 46 51 13 1 12 38 35 19 15 15 16 2 12 17 18 22 48 24 30 5 49 48 47 12 8 27 44 48 45 48 49 47 47 15 6 18 6 45 9 52 5...

Page 30: ...AR BARRIER SLIDER 74408CN 1 32 26 SCREW 5 16 24 X 1 1 2 FHSC SS 2 29 28006 30 27 33197A 1 ASSY SWITCH NUVL INBOARD BARRIER BLOCK NYLON SLIDER INSIDE 22 1 74410 BLOCK NYLON SLIDER OUTSIDE 24 23 1 74409...

Page 31: ...pages 30 32 for other platform assembly breakdowns 33 10 17 42 21 13 36 26 34 3 12 11 43 5 4 13 6 2 35 8 22 23 32 15 20 45 40 41 38 39 7 1 28 13 14 37 29 13 27 9 9 4 14 18 25 46 6 28 16 16 44 30 19 19...

Page 32: ...EASE 8 1 32881 SCREW 3 8 X 1 2 SHLD SKT HD X 3 8 16 SS 9 1 11390 RING CLEVIS PIN 15 16 10 1 84382 CLIP HAIRPIN 5 16 DIA SHAFT 73335 1 SPRING LOWER CLOSURE TORSION 9 4 1 6 4 8 7 2 10 5 3 HINGE WMT REAR...

Page 33: ...WG NOTES 1 THREAD ITEM 16 INTO ITEM 12 UNTIL THERE IS 5 16 BETWEEN HANDRAIL AND HEAD OF BOLT 2 USE LOCTITE RED 271 B C 11522 1 ON ALL FASTENERS 3 CABLE TIE SAFETY BELT WIRE TO SAME SIDE THAT BELT IS M...

Page 34: ...WASHER 5 ID X 1 003 OD X 057 067 THK PTFE 1 82348 BOLT 5 16 24 X 1 SKT BTN PLTD 2 2 29942 BOLT 3 8 16 X 1 2 FLBHSCS 6G8 PATCH 84384 1 ROD END 5 16 24 MALE 2 3 1 4 7 WASHER 507 ID 1 OD X 025 15328 8 4...

Page 35: ...lity to complete any work and to make parts and design changes from time to time without notice to anyone Braun reserves the right to make changes in the design or material of its products without inc...

Page 36: ...any material component or part of the product that is warranted by another entity Note the written warranty provided by the manufacturer of the material component or part LV WKH GLUHFW UHVSRQVLELOLW R...

Page 37: ...6RPH VWDWHV GR QRW DOORZ D UHGXFWLRQ in the statute of limitations so this reduction may not apply to you WARRANTY REGISTRATION and MISCELLANEOUS Your warranty registration records should be complete...

Page 38: ...Page 36 NOTES This page intentionally left blank...

Page 39: ...Over 300 Braun Dealers Worldwide Providing Access to the World 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 40: ...d 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 34807 Rev C May 2012 34807 Rev C May 2012 S...

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