Kunzle & Tasin Bona Belt Lite Manuel D'utilisation page 29

Emergency Situations (for the user)
PROBLEM
The thermal protection
intervenes too much
frequently
The drum release lever is
too hard or doesn't stop at
the high position
The drum doesn't come off
enough from the floor
The abrasive belt doesn't stay
in its position
The abrasive doesn't sand
enough or its speed is not
enough
The floor surface is not regularly
sanded
The floor surface turns
scorching
Insufficient dust collection
CAUSES
Wrong or unstable power supply
Excessive cable length
Too much weight on the machine
Dirty motor
The motor fan is not turning properly
Faulty thermal switch
Faulty motor
Release pin and spring not enough lubricated or
damaged
Lever sector plate or the lever stop pin dirty,
not enough lubricated, damaged, worn out or
broken
Wheels joint, between the two parts of the drum
lifting rod, not properly adjusted
Dust is locking the wheels support
Tensioner not properly adjusted
Spring of the tensioner not working properly
Excessively or irregularly worn tensioner
Worn-out or unsuitable abrasive
Drum pressure is not enough
Dust prevents adjusting the drum pressure
Driving belts at a wrong tension
Tensioner dirty or too worn-out
Worn-out driving belts or pulleys or bearings
Faulty abrasive belt
Not correct wheels position
Bearings, pulleys or shafts dirty or faulty
Driving belts and wheels dirty, badly adjusted or
faulty
Drum surface dirty or faulty
Worn-out or unsuitable abrasive
Excessive pressure on drum
Dust bag more than 1/3 full
Dust bag dirty or with blocked pores
Vacuum ducts and/or obstructed pipes
Suction bearings and shaft in bad conditions
SOLUTIONS
Try the machine on a different job-site
Use cables of suitable length and keep them well un-
wrapped while working
Remove any possible additional weight on the machine
Check if the motor is well clean and remove all the possible
dirt
Check if the motor fan is well screwed or contact an au-
thored Bona dealer for bearings replacement
Contact an authorized Bona dealer
Contact an authorized Bona dealer
Check it they need to be disassembled and lubricated or
contact an authorized Bona dealer for replacement
Check if they need to be cleaned or lubricated or contact
an authorized Bona dealer for replacement
Adjust it
Clean it
Adjust it (check the alignment with the rubber drum)
Contact an authorized Bona dealer
Contact an authorized Bona dealer for replacement
Replace it
Increase the drum pressure
Remove the dust
Set them at a right one
Clean it or contact an authorized Bona dealer for replace-
ment
Replace the driving belts or contact an authorized Bona
dealer for replacement of pulleys and bearings
Change it
Adjust the wheels at a right position
Clean or contact an authorized Bona dealer for replace-
ment
Clean, adjust or replace them
Clean, correct or replace the rubber-coated drum
Replace the abrasive
Decrease sanding pressure
Empty the bag
Shake out the dirt and wash the bag
Clean air ducts
Contact an authorized Bona dealer
Bona Belt Lite Manual
29
EN