Braun Corporation FMVSS No. 403 Manuale Utente

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Braun Corporation FMVSS No. 403 Quick Reference Installation Sheet 32553 Rev. A
Hydraulic Fluid (Pump) - Check level. Note:  Fluid 
should be changed if there is visible contamina-
tion.  Inspect the hydraulic system (cylinder, hoses, 
fittings, seals, etc.) for leaks if fluid level is low.
Inspect lifting arm bushings and pivot pins for vis-
ible wear or damage
Inspect outer barrier pivot pin mounting bolts (2)
Mounting
ecals and ntiskid
Use 5606 aviation fluid only (part 87010R-MILL).
Check fluid level with platform lowered fully.
Fill to within 1-1/2" of the bottom of the fill tube 
(neck).
Replace if needed. 
ighten or replace if needed
Check to see that the lift is securely anchored to 
the vehicle and there are no loose bolts, broken 
welds, or stress fractures.
Replace decals if worn, missing or illegible.  
Replace antiskid if worn or missing.
Repeat all previously listed inspection, lubrica-
tion and maintenance procedures at 750 cycle 
intervals.
Consecutive
750 Cycle 
Intervals
1500
Cycles
4500
Cycles
Apply Light Oil - See Lubrication Diagram
Apply Door Ease - See Lubrication Diagram.  Ap-
ply to the surface area around both slots and wipe 
off e cess
Apply Light Oil - See Lubrication Diagram
Apply Light Oil - See Lubrication Diagram
Apply Synthetic  rease - See Lubrication Diagram
Use compressor and nozzle to remove all debris 
from housing.  Clean outboard lower pan slot and 
apply Antisieze to slot before reinstalling pan.
Use clean cloth and solvent to clean tracks.  Clean
lower pan slot and apply Antisieze to slot before 
reinstalling pan.
Correct or replace damaged parts and/or relubri-
cate.  See Drive Chain Adjustment.
Correct or replace damaged parts and/or relubri-
cate.
Ensure T-handle release and cable assembly 
operate properly (see Manual Operation).  Ensure 
carriage can be manually e tended and retracted 
freely.
Resecure, replace or adjust as needed.  See 
Switch Adjustment.
Correct, replace damaged parts and/or relubricate.
Resecure, replace or correct as needed.
Resecure, replace damaged parts, lubricate or 
correct as needed.
Resecure, replace damaged parts, lubricate or 
correct as needed.  See Carriage Ride Height 
Adjustment.
Resecure, replace or correct as needed.
Resecure, replace or correct as needed.
Tighten, repair or replace if needed. 
Resecure, repair or replace if needed.
Carriage and eccentric shaft rollers (bearings) 
Lifting arm slots  in rolling horizontial carriage arm
tubes
Hydraulic cylinder pivot points (4 per cylinder)
Drive chain and chain rollers
Drive chain release latch mechanism
Deploy lift, remove inboard and outboard lower 
pans and blow out housing.  Blow off platform also.
Deploy lift, remove inboard and outboard lower 
pans and clean housing tracks
Check drive chain tensioner, jam nuts and connect-
ing link for securement and/or misalignment.
Inspect drive chain release latch mechanism for
proper operation, positive securement, wear or 
other damage
Inspect platform cable-activated manual release 
system (T-handle/cable assembly and carriage 
movement)
Inspect limit switches for securement and proper 
adjustment
Inspect carriage, lifting arm and eccentric shaft 
rollers (bearings) for wear or damage, positive 
securement and proper operation
Inspect e ternal snap rings (e-clips)
• Carriage roller bearings (4)
• Lower lifting arm pins (5)
• Eccentric shaft track roller bearing (1)
Inspect lower lifting arm pins for wear or damage, 
positive securement and proper adjustment
Inspect 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
Inspect housing cam brackets for securement, 
wear or damage
Inspect cylinder(s), hoses, fittings and hydraulic 
connections for wear, damage or leaks
Inspect power cable
Maintenance and Lubrication
Adjustments and Calibration
Adjustment Procedures
Lift Out Switch: The Lift Out Switch stops inward travel of 
the carriage/platform during Stow function (activated by the 
housing-mounted Lift Out Cam).  Move cam in to increase 
inward travel.  Move cam out to decrease inward travel.  LED 
D25 will be illuminated when the switch is not contacting the 
cam.
Full Out Switch: The Full Out Switch stops outward travel of 
the carriage/platform during Deploy (Up/Down) functions (ac-
tivated by the housing-mounted Full Out Cam).  Move cam 
in to decrease outward travel.  Move cam out to increase 
outward travel.  Carriage rollers must be inside housing a 
minimum 1/2".  The platform will not raise or lower until this 
switch is activated.  LED D26 will be illuminated when the 
switch is contacting the cam.
Floor Level Switch:  LED D28 will be illuminated when the 
switch is contacting the cam. Detailed on reverse side.
Below Stow Switch: The Below Stow Switch controls the 
height of the carriage/platform before it moves inward during 
the Stow function (activated by the torque tube-mounted 
Below Stow Cam).  Rotate the cam in to decrease platform 
height.  Rotate the cam out to increase platform height.  
Adjust cam so lifting arms are aligned.
iew the platform 
position in the housing.  LED D24 will be illuminated at stow 
level and below.
Barrier Down Switch: This platform-mounted switch pro-
hibits the platform from raising unless the outer barrier is in 
the full up position.  The Up function is prohibited if the outer 
barrier detent pin is not fully engaged also.  LED D2  will be 
illuminated when the switch is not contacting the outer barrier 
detent pin.
Drive Chain Adjustment
In event the drive chain sags 1/2" or more, adjust tension 
as detailed.  Tighten to eliminate visible sag but do not 
overtighten.
1. Remove bottom pan.
2. Pull the manual release cable and lock. 
. Remove adjustment bolt (tensioner) access cover.
4. Loosen inside jam nut.  Secure tensioner and tighten 
outside jam nut. Tighten to eliminate visible chain sag but 
do not overtighten.
5. Lock jam nuts together making sure the tensioner roller is 
horizontial.  Release and push the manual cable in fully.
Ensure platform is locked by moving the platform in and 
out until chain release assembly engages chain.
Calibration Procedures
Platform Sense Calibration
1. There must be no weight on platform.
2. Press hand-held pendant UP switch to raise platform a 
minimum  " above stow level.
. Remove pump cover and press and hold control board 
mounted CAL. 50 lb. button.  hi le pressing the CAL. 50 
lb. button, press and hold the hand-held pendant STO  
switch (button). The platform will lower to stow level (begin 
stow function), and then start to raise.  Release CAL. 50 lb. 
button immediately when platform starts to raise from stow 
level.
4. LED D18 will be illuminated when weight on plat   
form prevents stowing.
Ground Sense Calibration
1. Press hand-held pendant DO
 switch to lower platform 
fully to ground level.
2.  hi le continuing to press the pendant DO
 switch, press 
and then release control board mounted CALIB. 
SE /OB button.
. Release the pendant DO
 switch.
4. LED D2  will be illuminated when platform is at ground 
level.
Outer Barrier Occupied Calibration
1. Press hand-held pendant DO
 switch to lower platform 
    fully to ground level.
2. Once outer barrier is fully unfolded (ramp position), release 
    the pendant DO
 switch.
. Press and hold the control board mounted CALIB. 
SE /OB button.  hi le holding CALIB. 
D SE /OB button, 
press hand-held pendant UP switch to raise the outer bar-
rier. Be sure to release CALIB. 
D SE /OB button when 
outer barrier reaches appro imately half full up (vertical) 
position.
Carriage Ride Height Adjustment
The carriage horizontal arms move (roll) in and out of the 
housing tracks on roller bearings.  Following installation or 
e tensive lift operation, clearance between horizontal arms 
and tracks may diminish.  The eccentric shaft mounting plate 
allows height adjustment.
Remove eccentric plate mounting screw.  Using screwdriver 
or small rod, rotate the shaft clockwise to increase carriage 
height.  Rotate the shaft counterclockwise to decrease carriage 
height.  Reinstall mounting screw in nearest retainer hole.  
Adjust left and right side eccentric shafts (screw positions may 
vary from side to side).  Adjust height such that horizontal arms 
do not contact top or bottom of tracks (align center).