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Fault
The operator notices:
increased contact pressure
■
increased trigger force
■
power regulation stiff to adjust
■
cartridge strip is difficult to
■
remove
Threaded studs driven to different
depths or sealing washer pres-
sure/contact not constant
Damage to the
painted surface on
the underside of the
base material
Threaded stud doesn't hold in the
base material when torque is
applied
Possible cause
Carbon build-up
■
Hole not deep enough
■
Piston broken or damaged
■
Fastener guide damaged
■
Damaged protective cover
■
Tool misfires
■
Wrong driving power setting
■
Carbon build-up
■
Stud driven too deeply
■
Dirt or foreign matter in the hole
■
Steel base material too thin
■
(< 8 mm)
Hole not deep enough
■
Dirt or foreign matter in the hole
■
Hole not deep enough
■
Hole damaged or previously used
■
Wrong drill bit used
■
Too much torque applied
■
Remedy
Clean the tool
■
Check that the correct cartridges
■
are used (see 1.2) and that they
are in faultless condition.
Drill to correct depth
■
=> visible ring
.
Replace the piston.
■
Replace the fastener guide.
■
Replace the protective cover.
■
Change the cartridge strip (take a
■
strip from a new, dry package if
necessary). Clean the cartridge
strip guideway and cartridge
chamber.
Check driving power using the
■
power regulation guide.
Clean the tool.
■
Reduce driving power (power
■
regulation).
Remove liquids, debris, or other
■
foreign matter from the hole
before installing the stud.
Drive studs only on steel base
■
material ≥ 8 mm.
Drill to correct depth
■
=> visible ring
.
Remove liquids, debris, or other
■
foreign matter from the hole
before installing the stud.
Drill to correct depth => visible
■
ring
.
Drill new hole.
■
Use appropriate drill bit
■
Use appropriate amount of
■
torque (see 7.2.1 Recommended
torque)
en
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