Operating Instruction DX 351-BT, DX 351-BTG (01)

11
en
The operator notices:
■ increased contact pressure
■ increased trigger force
■ power regulation stiff to adjust
■ cartridge strip is difficult to
remove
Fault Possible cause
■ Carbon build-up
Remedy
■ Clean the tool
■ Check that the correct cartridges
are used (see 1.2) and that they
are in faultless condition.
Threaded studs driven to different
depths or sealing washer pres-
sure/contact not constant
■ Hole not deep enough
■ Piston broken or damaged
■ Fastener guide damaged
■ Damaged protective cover
■ Tool misfires
■ Wrong driving power setting
■ Carbon build-up
■ 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.
Damage to the
painted surface on
the underside of the
base material
■ Stud driven too deeply
■ Dirt or foreign matter in the hole
■ Steel base material too thin
(< 8 mm)
■ Hole not deep enough
■ 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 .
Threaded stud doesn’t hold in the
base material when torque is
applied
■ Dirt or foreign matter in the hole
■ Hole not deep enough
■ Hole damaged or previously used
■ Wrong drill bit used
■ Too much torque applied
■ 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)
Printed: 20.08.2013 | Doc-Nr: PUB / 5126352 / 000 / 01