Hilti DX A40 Mode D'emploi page 7

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Cleaning and servicing the X-A40/CM polyurethane marking head
1
Remove the cartridge strip from the tool.
Unscrew the marking head as described in
«Changing the piston».
5
Remove the breech from the marking head.
Printed: 07.07.2013 | Doc-Nr: PUB / 5069863 / 000 / 00
2
©
Withdraw the piston from the marking head.
6
Remove and individually check for wear and
tear, the impact extractor with O-ring and
the absorber. If it is necessary, insert a drift
punch through the bore.
The polyurethane marking head should be cleaned: after a large number of markings (20,000) /
when problems occur e.g. impact extractor damaged / when marking quality disimproves
3
Remove the marking characters by turning
the locking lever to the unlocked position.
7
©
Remove the locking lever with axle by turn-
ing it to the unlocked position and applying
some force.
4
Unscrew the locking screw M6×30 approxi-
mately 15 times with an Allen key.
8
Before reassembling the head pay special
attention to the wear on the impact extractor.
Failure to replace a worn or cracked impact
extractor can cause premature breakage and
poor marking quality.
7

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