18
A3-P
7. DIAGNOSTIC
7.1 SAFETY WARNINGS
The interventions must be executed by personnel properly trained for this specific machine and they must take
all precautions in order to avoid accidental starts.
During the tests, it is suggested to remove the vertical clamp assembly or position it to its full upwards position.
TABLE 7. 2 - A
TROUBLE
POSSIBLE CAUSE
REMEDY
Pressing the foot pedal the Wedges
ejection is discontinuous (sometimes
it goes off)
Insufficient working pressure
• Check that the minimum value indicated
from main gauge is higher than 2,5 Bar
Wedges wrongly positioned into
the magazine
• Check that the Wedges sharpened side
(glue side) faces up
• Check that Wedges V vertex is pointing
toward machine’s external side
Guide channels damaged or
jammed
• Check that the guide channels are not dirty
or jammed
Claw pusher has insufficient
thrust
• Check that the pressure of the regulator
feeding the claw pusher cylinder is at least
1,0 Bar. If necessary, increase it by 10%.
Claw head not suitable with
Wedges size
• Check that the number engraved on the
wedge claw head match the Wedges size
Faulty Wedges
• Replace the Wedges (from a different
packaging)
Insufficient working pressure
• Check that the air pressure line.
Opened Wedges magazine
• Close the magazine by means of the
special lever
Faulty valves
• Replace the foot pedal valve
• Replace the control valves
Pressing the foot pedal for several
times the machine’s working cycle
that was correct at the beginning
becomes irregular later
Jammed valves because of
surplus of oil or condensation
liquid in the actuation hoses Ø
4mm
• Remove the surplus of oil and condensation
from the valves by disconnecting the
hoses/pipes one by one. This will force out
the oil or condensation liquid.
Pressing the foot pedal the working
pressure indicated on the regulator
deeply decreases (over 1,0 bar)
Faulty pressure regulator
• Replace the regulator
Air supply line too long or of
inadequate diameter
• Replace the air line with a new one of
bigger size
Pressing the foot pedal the machine
works properly, but once the pedal is
released you can note a certain delay
in the re-positioning of the driver
blade and/or vertical clamp cylinders
Faulty or jammed valves
• Remove the surplus of oil and/or
condensation
• Replace the foot pedal valve
• Replace the faulty control valves
Wishing to insert several Wedges
one upon the other in the same
position, they do not stack properly
or tilt during their insertion
Unsuitable Wedges
• Replace the Wedges with suitable ones
Unsuitable frames clamping (the
frame moves during the Wedge
insertion)
• Check and reposition the vertical clamp
• Increase the pressure by using the
pressure regulator
• Replace the pressure pad with the proper
one
Wore and torn driver blade
• Replace the driver blade
Jammed driver blade
• Revive and clean the driver blade’s upper
part by removing any material jamming the
upper profile
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