Opening Width
Maximum Floor-to-Ground
B
A
C
Figure B
Minimum Clear Door
Opening Height
A
B
C

NUVL855RM24

NA
43½"
62½"
DOT - Public Use Lift verifies 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 ve-
hicle weight rating (GVWR) that exceeds 4,536 kg (10,000 lb).
WARNING
Engage manual
release before
attempting to install
(raise, tilt or move)
lift. Failure to do so
may result in serious
bodily injury and/or
property damage.
Figure C
Locate Lift Mounting Brackets
Braun Corporation FMVSS No. 403
Alternative
floor structures
are allowed
providing the
installed lift
system passes
all FMVSS 403
requirements.
Lift Mounting Brackets
(typical both sides)
Right
Left
Inboard
Outboard
Quick Reference Installation Sheet 34274
Rev: A
Vehicle Floor
Chassis Members
DOOR OPENING
90
CENTER IN
DOOR OPENING
CENTER
ACROSS
VEHICLE FRAME
L
C
22-3/8"
22-3/8"
44-3/4"
All-Thread
Mounting Studs
Locate Lift Mounting Brackets
1. Open door(s) fully (min. 90°).
2. Locate center of door opening.
Mark the center point.
3. Transfer center point to the
vehicle frame. Using a front-
to-rear framing member as a
guide, transfer the center point
across chassis to opposite side
front-to-rear framing member
(must be 90° to door opening).
Lift mounting bracket positions
are based on this center line.
4. Measure 22-3/8" to left and
right of the center line to
achieve the 44-3/4" center-to-
center spacing of all-thread
mounting studs.
5. Clamp the mounting brackets
securely in place (all-thread
studs must be vertical).
Engage Platform Manual
Release System: The lift
cable-activated platform
manual release is disengaged
during shipment to prevent
potential drive chain stretch.
Handle the lift with
care. Engage manual
release before at-
tempting to install
(raise, tilt or move)
the lift. Braun Corporation FMVSS No. 403 Quick Reference Installation Sheet 34274 Rev. A
2
Secure Lift

1. Attach Mounting Brackets to
Vehicle Framing Members
Position lift mounting brackets as
detailed in Step 1 (see Figures C, D
and F). Oval slotted mounting holes
are provided in the mounting brackets
to allow adjustment. Carefully drill
21/64" (.328") diameter mounting
holes at the center of the oval mount-
ing slots (holes may be present).
Twenty 5-16-18 x 1" hex bolts are
supplied for bolting the lift mounting
brackets to the vehicle framing mem-
ber (four per inboard bracket and six
per outboard bracket).
Place a flat washer onto each mount-
ing bolt. Insert bolts through mount-
ing bracket, vehicle floor and fram-
ing member as shown in Figure D.
Installation is typical for all brackets
(outboard brackets require 6 mount-
ing bolts each).
All fasteners must meet FMVSS
571.403 Section 6.3.
2. Position and secure lift.
Thread two 3/4" hex jam nuts fully onto each mounting
bracket all-thread stud. Place one large diameter flat
washer onto each all-thread stud. See Figures G and H.
Carefully position lift in vehicle (aligned with mounting
brackets). Position (slide) the six lift mounting clamps
along the sides of the lift housing until aligned with
mounting bracket all-thread studs. See Figure F. Lower
lift onto mounting bracket studs
3. Height Adjustment
The lift outer barrier must be aligned
with

the vehicle access hole.
The lift housing must be aligned
with vehicle chassis (level). Adjust
the 3/4" hex jam nuts on the all-
thread mounting studs at all 4 corners
of the lift until dimensions A, B, C
and D are equal (within 1/16"). See
Figure G.
Place one large diameter flat washer
onto each mounting bracket all-
thread stud. Thread two 3/4" hex jam
nuts fully onto each all-thread stud
(against lift mounting clamp).
In-Out Positioning
Position the lift to achieve a 2 over-
lap between the deployed inboard
barrier and the vehicle floor.
Figure F
4. Horizontial Adjustment
Shift lift and mounting brackets left-to-right as
needed (lift must be centered in door opening).
Tighten the 5/16" bolts securing mounting
brackets (shown in Figure D) to the frame.

Torque Specifications: 20 foot pounds.
Tighten upper set of 3/4" hex jam nuts (with
flat washer) down to the lift mounting clamps.
Tighten jam nuts.
Torque Speci cations: 100 to 120 foot pounds.
Shipping Block Removal:
Wood blocks are placed in the lift housing to
prevent lift damage during shipment. Remove
shipping blocks from platform and carriage
before running (activating) lift. Refer to Ship-
ping Block Removal Instruction 28942.
Figure E
Figure H
Figure G
Dimensions A, B, C and D
must be equal (within 1/16
"
).
Vehicle
Framing
Members
5/16-18 x 1"
Hex Bolt
Flat
Washer
(typical)
Nylock Hex Nut
(typical)
All-Thread
Stud
Figure D
Lock Washer
(typical)
Inboard
Mounting
Bracket
Flat Washer
Jam Nuts
Lift Clamp
Jam Nuts
All-Thread
Stud
10¼
Lift Housing
Mounting
Bracket
Jam Nuts
Flat Washer
Lift Clamp
Flat Washer
Jam Nuts
All-Thread
Mounting
Stud
A
D
B
C
2-1/2"
5-3/8" Braun Corporation FMVSS No. 403 Quick Reference Installation Sheet 34274 Rev. A
Main Lift
Wiring
Harnesses
Strobe
Alarm
Platform Lights
Threshold Mat 1
Main Lift W
iring
Harnesses
Threshold Mat 2
MCI Door Operator
MCI Full Closed
To Lift
1
Disconnect
and remove
eye terminal
2
Connect vehicle
interlock signal wires
To Vehicle Interlock
Vehicle Secure Signal
To Jumper #31730A
Power Switch
3
Electrical, Hydraulic and Interlock

Note:
Remove
plug from
vent tube.
Connect red positive
(+) power cable here
(from Circuit Sentry).
Chassis
5/16"
External Tooth
Star Washer
9/32"
Diameter
Pilot Hole
Thread
Cutting
Screw
Figure J
Ground Cable Mounting
Pump Ground Cable:
One ground cable is pump mount-
ed. Connect cable to a vehicle
framing member (see Figure J).
Vehicle Battery Ground Cable:
A ground cable (minimum 2 gauge)
must be connected from vehicle
battery negative post to the same
vehicle framing member the pump
ground cable is attached to.
Ground Cable Corrosion:
When mounting ground
cables, remove undercoat-
ing, dirt, rust, etc. from
framing member around
mounting holes. Apply
protective coating to mount-
ing holes to prevent corro-
sion. Failure to do so will
void warranty of certain
electrical components.
Pump Module Mounting
Mount the pump module
case to the inner wall
of the adjacent storage
compartment as shown
in Figure I.
Check for obstructions
before drilling, cut-
ting holes or installing
mounting hardware.
Note: Locate and drill
hydraulic hose, wiring
harness and manual
release cable access
holes before mounting
pump. A 3" diameter
plastic grommet may be
used (supplied).
Figure L
Note: All
wiring harness
connections
must be in-
side the pump
module box.
Vehicle and Lift Interlocks
The pump module is
equipped with a lift interface
9-circuit connector (female
socket). A mating 9-circuit
connector (male plug) is
supplied. To meet mini-
mum NHTSA requirements,
connect to vehicle interlock
harness as outlined in
Figure L (Steps 1-4).
Power Cable
Aux.
Bat.
Pos.
Neg.
1/8" x 4" x 4"
Plastic
12"Max.
Circuit
Sentry
Lead
Cable
Hydraulics:
Remove the plug
from 1/4" diameter
clear vent tube.
See Figure L.
Route hydraulic
hose assembly
through compart-
ment wall to quick-
disconnect fitting at
lift. Connect hose.
Circuit Sentry:
Install Circuit
Sentry as shown
in Figure K. At-
tach power cable
and lead cable as
detailed.
Figure K
Calibration and
Floor Level
Adjustment
Following electri-
cal, hyrdaulic
and interlock
installation, check
calibration and
floor level adjust-
ments as defined
in Panel 4.
Pump
Mounting
Bracket
Figure I
Adjacent
Compartment
Wall
1/4-20 x 3/4"
Hex Bolts
(Typical)
3/8"-16 x 1" Hex Bolts with Flat
Washer and Nylock
®
Hex Nuts
Beeper/Strobe
Alarm and Plat-
form Lights:
Connect har-
nesses to mating
harnesses at
pump module.
Housing/Carriage
Harnesses:
Route two main wir-
ing harnesses from
lift to pump module.
Connect to mating
harnesses at pump.
Threshold Warning Sensor:
Connect both threshold sen-
sor mat harnesses to mating
Y-harness at pump module
(labeled). Both mats must
be installed on a flat rigid
surface.
Inboard edge of inboard
mat must be minimum 18"
from edge of finished floor
or stepwell. Braun Corporation FMVSS No. 403 Quick Reference Installation Sheet 34274 Rev. A
K
MP916
0.010
.5% R
321
321
321
LCD MODULE
8.00M
L_DN
B_UP
L_OUT
L_UP
B_DN
L_IN
50# CAL
O_BAR
D14
J27
U
?
CYCLE
DIAG
U15
U1
1
U10
U2
J9
J1
1
J10
J17
J16
J14
J8
J5
J21
J19
J20
D9
D6
D8
D7
D13
D11
8
3
J
9
3
J
K7
K10
D12
D10
100 VHA
C12
220
CFK
C18
100 VHA
C13
MAG_SW
HAND-1
HAND-2
INT
D/S
U/D
J29
J30
J22
J25
10
9
8
7
6
5
J4
SVC LIGHT
2
3
2
J
4
2
J
2
3
3
3
1
4
2
45
R55
Y2
8.00MY2
R54
R57
R60
R61
R52
R42
Lift_Out Floor_SW
R41
R40
R39
R27
R77
R53
R68
C10
C5
C8
C4
C17
C14
C11
J37
J
I
H
G
L
A
B
C
D
4 3 2 1
RL1
1
RL1
1
220
35A
220
35A
B - UP
B - DN
L
- OUT
L -
I
N
100419-001 REV
HI
LO
GND
PWR
LIGHTS
ALARM
VALVE
PUMP
R31
R30
C2
R21
R32
R34
R33
R35
R46
R58
R49
R51
R44