Bralo BNT - Troubleshooting

BNT
17
www.bralo.com
TROUBLESHOOTING
SYMPTOM POSSIBLE CAUSE SOLUTION
EN
The riveter is not working.
More than one press of
the trigger is needed to
place a rivet.
After a period of inactivity, the valve
sticks to the inside.
Pull the trigger and adjust the air intake cutoff
valve several times.
The air supply is depleted or was
removed.
Connect and verify that the feed pressure of
compressed air is between 6 and 7 bar.
The trigger button is damaged. Replace it with a new one.
Other causes. Send the tool to the dealer or to BRALO for
repair service.
Low oil or air is present in the
hydraulic circuit.
Perform an oil fill operation and purge the
circuit in accordance with the procedure
described in the manual.
The tool performs the
riveting operation
successfully, but marks
appear on the installed
rivets.
The nozzle is too large. The edges of
the mandrel insertion hole rest on
curved areas of the rivet head,
causing deformation and unwanted
marks.
Identify the appropriate nozzle for the task at
hand and swap it, following the change
procedure described in the manual.
Slow operating cycle.
Lack of lubrication. Lubricate the jaw holder, nozzle holder and
housing.
The machine does not
grasp the shank of the
rivet.
The jaws are worn or broken. Replace of the jaws.
The jaws do not release
the broken shank/man-
drel or the rivet.
Loose jaw holder. Tighten jaw holder.
Broken or worn spring in the jaw
holder.
Install a new spring.
Incorrect replacement part(s). Identify and swap out the bad part(s).
Accumulation of dirt inside the
nozzle holder.
Perform maintenance cleaning.
Insufficient air pressure. Check the pressure of the compressed air
supply to ensure it is between 6 and 7 bar.
Air pressure under specs. Verify that the air supply pressure is set between
6 and 7 bars.
Accumulation of dirt inside. Perform maintenance cleaning.
Nozzle damaged by wear, impact or
improper handling.
Replace nozzle with a new one.
Dirt buildup on the nozzle. Service clean the nozzle.
Broken or worn spring. Replace with a new spring.
Low oil or air in the hydraulic circuit. Perform an oil fill operation and purge the
circuit in accordance with the procedure
described in the manual.
Some part is not tightened properly:
jaw holder, nozzle or nozzle holder.
Tighten all parts in the nozzle holder assembly.