Braun FMVSS NO. 403 Manuel D’Utilisation

90

Alternative floor structures are allowed 
providing the installed lift system pass-
es all FMVSS 403 requirements.  

All-thread 

Mounting 

Brackets

A maximum distance of 16

"

 from the 

outermost mounting bracket to the 
end of the cassette.

All four mounting brackets must be 
connected to the framerails.   

All vehicles with a GVW over 6000 lbs. 
and with unmodified OEM framerails.

Vehicle lift access door opening 
must meet specified dimensions.

NA

43-1/2"

50"

“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 vehicle weight rating 
(GVWR) that exceeds 4,536 kg (10,000 lb).

All-Thread 

Mounting 

Brackets

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.  En-
gage manual release before 
attempting to install (raise, tilt 
or move) the lift. 

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.

1.  Open both doors to 90°.

2.  Locate center of door opening 

(between doors).  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).