6.
Press the catch into the opening in the ring and then
rotate the ring back through 45 degrees.
NOTE The catch can be removed when pivoted out
and subsequently reinserted.
10 Troubleshooting
WARNING
The tool must be unloaded before taking any steps to remedy faults.
Fault
Higher force required to cycle
the tool.
Higher force required to press
the tool against the surface.
Trigger resistance increases.
Stiff movement of power regula-
tion wheel.
The cartridge strip is difficult to
remove.
The tool cannot be fired.
Tool jams.
9.3.8 Checking
After carrying out care and maintenance, check that all
protective and safety devices are fitted and that they
function faultlessly.
NOTE
The tool can be checked, as follows, to determine
whether it is ready to fire: Press the nose of the un-
loaded tool (i.e. no cartridges or fastener in the tool)
firmly against a hard surface and pull the trigger. A clearly
heard click from the trigger mechanism indicates that the
tool was ready to fire.
Possible cause
Build-up of combustion residues.
Build-up of combustion residues.
Build-up of combustion residues.
Build-up of combustion residues.
Build-up of combustion residues.
The tool is not cycled. The cartridge
has already been fired.
The tool was not pressed fully against
the working surface.
The tool needs to be cleaned.
The piston is damaged.
The tool is damaged.
Remedy
Service the tool (see 9.3)
Service the tool (see 9.3)
Service the tool (see 9.3)
Service the tool (see 9.3)
Service the tool (see 9.3)
Cycle the tool (see 8.5)
Remove the used cartridge and load
an unused cartridge.
Press the tool fully against the work-
ing surface.
Clean the tool.
Check the piston (see 9.3.2) and re-
place it if necessary.
If the problem persists, contact your
local Hilti Center.
en
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