Troubleshooting - Hilti DX E?72 Operating Instructions Manual

NOTE
The tool can be checked, as follows, to determine
whether it is ready to fire: Press the nose of the un-

10 Troubleshooting

en
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.
The tool cannot be cycled.
The tool cannot be fired.
Tool jams.
26
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.
The stop ring is damaged.
Driving power is too high. The piston
jams as a result.
No fastener inserted. The piston jams
as a result.
The tool is fouled with combustion
residues.
The tool was not pressed fully against
the working surface.
Bad cartridge.
The tool is fouled with combustion
residues.
The tool is not cycled.
The tool needs to be cleaned.
The piston is damaged.
The tool is damaged.
Remedy
Service the tool.
See section: 9.3 Servicing the tool
Service the tool.
See section: 9.3 Servicing the tool
Service the tool.
See section: 9.3 Servicing the tool
Change the stop ring.
Release the jammed piston.
Use a less powerful cartridge or a
longer nail.
Release the jammed piston.
Load a nail.
Clean the tool.
If the problem persists, service the
tool.
WARNING
Never use force when attempting to
remove unused cartridges from the
tool.
See section: 9.3 Servicing the tool
Press the tool fully against the work-
ing surface.
Use a new cartridge.
Clean the tool.
If the problem persists, service the
tool.
WARNING
Never use force when attempting to
remove unused cartridges from the
tool.
See section: 9.3 Servicing the tool
Cycle the tool.
Clean the tool.
Check the piston (see 9.3.2) and re-
place it if necessary.
If the problem persists: contact Hilti