BraunAbility Millennium 2 NL Series User manual

405417 Rev. A
November
2019
W
ARNING
Read manual
before installing
or servicing lift.
Failure to do so
may result in
serious bodily
injury and/or
property damage.
ual
Man
“DOT — Public Use Lift” veries 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).
DOT — Public Use Lift
www.braunability.com
631 West 11th Street, Winamac, IN 46996, USA
Phone: [phone] • Fax: [phone]
Service Manual
Manufacturing Revision Level: Rev. G
Millennium 2
NL

Warranty and Registration Instructions
Immediately upon receiving the lift, examine the unit
for any damage. Notify the carrier at once with any
claims.
Login to BraunAbility portal to submit warranty
registration. A copy of the warranty is provided in
the back of this manual.
Sample Serial Number Identication Tag
Model No.
Serial No.
Rev.
Date of Manufacture
BraunAbility®
INDIANA, USA
BRAUNABILITY.COM
REV
XXXXXXX
SERIAL NUMBER
XXXX Use Lift
Max. Lifting Capacity - XXX lb
XXXXXXX
MODEL NUMBER
MFG DATE
XXXXXXX X
Two BraunAbility® Serial No. identication 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. I.D. tags have the product
identication information needed to le a warranty
claim or to order parts. Record the information in
the space provided below.

Page 1
Contents
Troubleshooting and Maintenance
Lift Terminology................................................................ 2
Switch and Sensor Locations ......................................... 3
Certication Checklist Diagnostic Procedures................. 4
Platform Fold Pressure Adjustment................................. 5
Outer Barrier Fold Pressure Adjustment.......................... 5
Platform Angle Adjustment .......................................... 6-7
Platform Stop Blocks ...................................................... 7
Tower Microswitch Adjustment ........................................ 8
Lubrication Diagram ........................................................ 9
Maintenance and Lubrication Schedule.....................10-13
Lift Electrical Schematic ............................................... 15
Lift Wiring Diagram ....................................................... 16
Hydraulics
Hydraulic Schematic ..................................................... 17
Hydraulics Parts List ..................................................... 18
Hydraulics Diagram ...................................................... 19
Repair Parts
Pump Module
Rear Pump Module Parts Lists & Diagrams ....... 20-23
Front Pump Module Parts Lists & Diagrams ...... 24-27
Lift Exploded Views and Parts Lists
Base Plate Assembly ......................................... 28-33
Top Parallel Arm Assembly....................................... 34
Bottom Parallel Arm Assembly ............................ 35-36
Hydraulic Cylinder Assembly - Main......................... 37
Vertical Arm Assembly.............................................. 38
Arm Cover Assembly................................................ 39
Handrail Assembly ................................................... 40
Platform Assembly....................................................41-44
Warranty
BraunAbility®Limited Warranty................................. 45-47

Page 2
UP
DOWN
32819
FOLD
UNFOLD
32820
Pump Module (Front)
Hand-Held Pendant Control
Base Plate
Top Parallel Arms (2)
Adjustable Quiet-Ride Stow Blocks (2)
Main Cylinders (2)
Vertical Arm Covers (4)
Pump Side Vertical Arm
Handrails (2)
Outer Barrier Cylinder
(not visible - underside of platform)
Outer Barrier
(Automatic Outboard Roll Stop)
Saddle (2)
Inner Fold Arm (2)
Opposite Pump Side
Vertical Arm
Bottom Parallel
Arms (2)
Platform Lights (2)
Rear
Front
Outboard
(passenger's side)
Inboard
(driver's side)
“Arrows/30°-30°”6-13-90
(of vehicle)
(of vehicle)
Outboard
Right (Front)
Lift-Tite™
Latches (2)
Unfold Assist Compression Springs (2)
Outer Barrier Latch
Platform Side Plates (2)
Platform
Left (Rear)
Inboard
Towers (2)
Threshold
Warning
Plate
Audible Threshold Warning
(not visible)
Visual Threshold Warning
Inner Roll Stop
Lift Terminology
Outer Fold Arm (2)

Page 3
Inboard
Outboard
Right (Front)
Left (Rear)
Threshold Strip Switch
33337A
Ground Detect
Microswitch
33434A
Outer Barrier
Raised Microswitch
33434A
*Pump Side
IB Occupied
Microswitch
*Stow Interlock
Microswitch
*Pump Side
IB Occupied &
Stow Interlock Assy.
403685AKS
IB Raised Switch
32519A
*Threshold / Alarm
Microswitch
*Threshold / Alarm
& Partial Fold
Microswitch Assy.
975-4121A
*Partial Fold
Microswitch
*Note: Mirror image for
left (rear) pump lifts.
Bridging
Microswitch
33689A
*Up Microswitch *Unfold Microswitch
*Up & Unfold Microswitch Assy.
975-4121A
*Opposite
Pump Side
IB Occupied
Microswitch
*Opposite Pump Side
IB Occupied &
Stow Interlock Assy.
403685AKS NL917IB3751-2 &
NL917FIB3751-2
UP
DOWN
32819
FOLD
UNFOLD
32820
Switch and Sensor Locations

Page 4
The following operations and conditions must be functionally veried 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 refer-
enced procedures to correct the problem or contact a BraunAbility Aftersales representative.
• Vehicle movement is prevented unless the lift door is closed, ensuring the lift is stowed.
1. Verify on the pump module mounted interlock connecter that the lift stowed signal - pin 9 has a
ground signal OR lift not stowed signal - pin 5 has an open 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.
• The outer barrier will not raise if occupied.
- Refer to Outer Barrier Fold Pressure Adjustment procedures.
• Verify platform lighting when lift is deployed and pendant illumination when lift is powered.
• A visual and audible warning will activate if the threshold area is occupied when the platform is greater
than 1" below oor level.
1. Verify Tower 3 (Alarm) Switch Adjustment on page 8.
2. Remove the threshold warning plate.
3. Verify the threshold strip switch connector is securely connected.
4. Reinstall threshold warning plate.
5. Test threshold warning (push down on plate). If warning is not activated, see Step 5.
6. Remove the threshold warning plate and replace non-functioning threshold switch.
7. Repeat Step 4. If warning is still not activated, call BraunAbility Aftersales.
• Platform movement is prohibited beyond the position where the inner roll stop is fully deployed (up).
• Platform movement shall be interrupted unless the outer barrier is deployed (up).
Certication Checklist Diagnostic Procedures

Page 5
1. Lower the platform to the ground level load-
ing position.
2. Loosen the hex nut on the adjustment screw
(do not remove hex nut).
3. Turn the adjustment screw counter clockwise
until the outer barrier does not raise when
the Up button is pressed.
4. Turn the adjustment screw clockwise in 1/4
turn increments until the outer barrier raises
and fully locks in position when the Up button
is pressed.
5. Turn the adjustment screw an additional 1/8
turn after the outer barrier folds successfully.
6. Tighten the hex nut without moving the ad-
justment screw.
7. Verify the outer barrier will not raise when oc-
cupied.
Outer Barrier Fold Pressure Adjustment
Outer Barrier
Fold Adjustment
Allen Screw
Note: Secure adjustment
screw and tighten hex
nut following adjustment.
Platform Fold
Adjustment
Allen Screw
1. Verify Tower 4 (Fold) Switch Adjustment on
page 8.
2. Position the platform at the oor level loading
position.
3. Loosen the hex nut on the adjustment screw
(do not remove hex nut).
4. Turn the adjustment screw counter clockwise
until the platform does not fold when the Fold
button is pressed.
5. 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 oor level position after each at-
tempt to fold the platform.
6. Turn the adjustment screw an additional 1/8
turn after the platform folds successfully.
7. Tighten the hex nut without moving the adjust-
ment screw.
8. Verify the platform will not stow while occupied.
Platform Fold Pressure Adjustment
Figure A
Figure B
Note: Secure adjustment
screw and tighten hex
nut following adjustment.

Page 6
Platform Angle Adjustment
Figure C
Lowering Sequence Requirements
Adjustment Procedure:
Platform angle adjustment Allen
screws are provided on each side
of the platform (see photo at right
and details on following page).
Turn adjustment screws clock-
wise to raise the outboard end
of the platform. Turn adjustment
screws counterclockwise to lower
the outboard end of the platform.
Both adjustment screws must be
adjusted equally. Apply Loctite®
to adjustment screws following
adjustment.
Platform Stop Blocks: When
adjusting platform angle, en-
sure both stop blocks are mak-
ing full contact with the vertical
arms (see photo at right and
details on following page).
Floor Level Adjustment: Fol-
lowing platform angle adjust-
ment, set platform oor level
positioning as detailed in Tower
Microswitch Adjustment.
Stop
Block
Vertical
Arm
Adjustment Screw
Stop blocks must
make full contact.
(Heel) Inboard Outboard (Toe)
Rear
Front
Outboard
(passenger's side)
Inboard
(driver's side)
“Arrows/Direction
(of vehicle)
(of vehicle)
Heel
Ground Level
Barrier must
unfold fully.
Platform heel
must lower fully.
Barrier
Floor
Level
Wedges (option)
Figure D
2 1
1. The outboard end (toe)
of the platform must contact
the ground rst to ensure the
spring-loaded outer barrier
unfolds fully. See Figure C.
2. The inboard end (heel) of
the platform must lower fully
(vertical arms must contact
ground when fully lowered).
See Figure C.
The angle of the platform at
ground level directly affects
the angle of the platform when
positioned at oor level.
Raise the platform to oor
level. Note the angle of the
platform.
The platform at oor level
should have a slight upward
angle as shown in Figure D.
Adjust platform angle as de-
tailed below.
A

Page 7
Platform Angle
Adjustment Screws
Adjustment Screw Allen Head
B
C
Platform Angle Adjustment
Adjustment Allen screws are
provided on each side of the lift
platform for adjusting the platform
angle. Adjust platform angle as
specied on previous page.
Platform Stop Blocks
Must make full contact. Gap not permitted.
Both stop blocks must
make full contact with the
edge of vertical arms.
DE
Stop Block Guideline
All Lift Models
Right Wrong
Turn
clockwise
to raise
outboard
end of
platform
When adjusting platform
angle, setting oor level
position or adjusting
bridging microswitch -
ensure both stop blocks
are making full contact
with the vertical arms.
Stop
Block
Vertical
Arm Stop
Block
Vertical
Arm
Turn
counter-
clockwise
to lower
outboard
end of
platform
To raise the outboard end of
platform - turn adjustment
screw clockwise.
To lower the outboard end
of platform - turn adjustment
screw counterclockwise.
Note: Both adjustment screws
must be adjusted equally.
Apply Loctite® to adjustment
screws following adjustment.

Page 8
TOWER
1
TOWER
2
31130
TOWER
3
TOWER
4
31131
TOWER
2
TOWER
1
32942
TOWER
4
TOWER
3
32943
Tower 3 (Alarm) Switch Adjustment
Threshold Alarm Switch
1. Position platform at the fully raised
(oor level) position using the pen-
dant control.
2. Place pressure on the threshold
warning plate (base plate). Con-
tinue applying pressure to threshold
plate and turn switch adjustment
screw clockwise until alarm sounds.
If alarm sounds when pressure is
rst applied go to Step 3.
3. Continue applying pressure to
threshold plate and slowly turn
switch adjustment screw coun-
terclockwise until the alarm stops
sounding.
Tower 4 (Fold) Switch Adjustment
Partial Fold
1. Position platform at 45˚ angle using
the manual hand pump or pendant
control.
2. View the Tower 4 microswitch inside
the lift tower (see Photo G). Turn
the switch adjustment screw in or
out as needed until the radius of the
microswitch blade rides on the apex
of the activation plate.
3. Verify proper adjustment. Criteria
below must be met.
Proper Adjustment Criteria:
• Apply pressure (push down) on out-
board end of platform. By pressing
the hand pendant FOLD switch,
the platform should not fold (stow)
with light pressure applied.
• When folding fully, the platform
should stow tightly (snug with stow
blocks).
Figure E Note: Left (rear) pump lift
depicted. Right (front) pump
lift is a mirrored image.
Note: Review adjustment
procedures below and adjust
as needed only.
Tower 1 (Unfold) Switch Adjustment
Floor Position from Stow
1. Position platform at the fully stowed
position using the manual hand
pump or pendant control.
2. Turn switch adjustment screw clock-
wise 3 full turns.
3. Press pendant UNFOLD switch (con-
tinue pressing switch until platform
stops unfolding).
4. When platform stops unfolding, turn
switch adjustment screw coun-
terclockwise while pressing the
pendant UNFOLD switch. Platform
position will change. Repeat adjust-
ment until criteria below is met.
Proper Adjustment Criteria:
• Bridge plate should just rest on
threshold plate (base plate).
• Should be an approximate 1/8˝
clearance between outboard end of
rotating pivot slide arm saddle and
the lower parallel arm. See Photo
F.
Tower 2 (Up) Switch Adjustment
Floor Position from Below Floor
1. Lower platform a minimum of 6˝
below oor level position using the
manual hand pump or pendant
control.
2. Turn switch adjustment screw coun-
terclockwise 3 full turns.
3. Press pendant UP switch (continue
pressing switch until platform stops).
4. When platform stops, turn switch
adjustment screw clockwise while
pressing the pendant UP switch.
Platform position will change. Ad-
just platform to meet criteria listed
for Tower 1 Switch "Proper Adjust-
ment Criteria".
F
G
Radius of Tower 4 Micro-
switch Blade activated by
Apex of Activation Plate.
1/8"
TOWER
2
TOWER
1
32942
TOWER
2
TOWER
1
32942
TOWER
4
TOWER
3
32943
TOWER
4
TOWER
3
32943
Tower Microswitch Adjustment