Operating Instruction DX 5 (01)

English 11
6.6 Checking the piston and buffer for wear
WARNING
Checking the buffer and piston for wear Check the buffer and piston for wear.
▶ Check the buffer and piston for wear. Do not tamper with or modify the piston.
1. The piston must be replaced in the following cases:
◁ The piston is broken.
◁ The piston is badly worn or chipped (e.g. a 90° segment broken away).
◁ The piston rings are cracked or missing.
◁ The piston is bent (check by rolling the piston on a smooth, flat surface).
2. The buffer must be replaced in the following cases:
◁ The metal ring of the buffer is loose or broken.
◁ The buffer no longer holds on the fastener guide.
◁ The rubber is badly worn at certain points under the metal ring.
6.7 Checking the fastener guide for wear
1. Check the fastener guide for wear and replace it if part of it is damaged (e.g. broken, bent, widened or
cracked).
2. Contact Hilti Service if necessary.
Printed: 29.09.2017 | Doc-Nr: PUB / 5292580 / 000 / 01