Maintenance - Hilti DX 5 Original Operating Instructions

◁ Have the tool checked and, if necessary, repaired by Hilti Service.
Note
Dirt and residues build up in the tool under normal operating conditions and functional parts are
also subject to wear.
Carry out regular inspections and servicing. Servicing must be carried out after 30,000 fasteners
have been driven.
Clean the tool after every 2,500 - 3,000 fastenings. The fastener counter shows how many fasteners
have been driven since the cleaning indicator was last reset. One bar stands for 500 fasteners.
Check the piston and the buffer daily when the tool is subjected to intensive use, or at the very
least, before the end of the recommended regular cleaning interval of 2,500 - 3,000 fastenings.
The inspections, service intervals and cleaning intervals are based on typical tool use. If you find
that the tool is not functioning correctly before a scheduled interval is reached, service the tool
immediately.
6 Care and maintenance
6.1 Care of the tool
WARNING
Cleaning Pay attention to the following points when cleaning the tool:
▶ Do not clean with a spray system or pressure jet washer.
▶ Do not permit foreign objects to enter the interior of the tool.
WARNING
Risk of injury due to deflagration Powder residue in the tool may ignite and cause uncontrolled
triggering or fragmentation.
▶ Clean the tool regularly. Comply with all maintenance and cleaning information and instructions in
this documentation.
▶ If inferior-quality cartridges are used, cleaning the tool will not reduce the risk of powder
residue inside the exhaust gas piston return unit igniting and causing uncontrolled triggering or
fragmentation. This can only be reduced by having the tool taken to Hilti Service for maintenance.
▶ Clean the exterior of the tool with a slightly damp cloth at regular intervals.

6.2 Maintenance

WARNING
Dangerous substances The deposits inside DX tools contain substances that may present a health
hazard.
▶ Do not inhale dust or dirt while cleaning.
▶ Keep dust and dirt away from foodstuffs.
▶ Wash your hands after cleaning the tool.
▶ Never use grease to clean or lubricate tool components. This may lead to malfunctions. To avoid
malfunctions caused by the use of unsuitable cleaning agents, use Hilti spray.
1. Regularly check all external parts of the tool for damage.
2. Regularly check all operating controls to ensure that they work properly.
3. Use the tool only with the recommended cartridges and at the recommended power settings.
◁ Use of the wrong cartridges or excessively high power settings may lead to premature failure of the
tool.
6.3 Servicing the tool
▶ Service the tool in the following situations:
◁ If power fluctuations occur.
◁ If cartridge misfires occur.
◁ If the tool becomes noticeably less easy to operate.
◁ If the required contact pressure increases noticeably.
Printed: 29.09.2017 | Doc-Nr: PUB / 5292579 / 000 / 01
English 7