Hilti DX 5 Mode D'emploi Original page 17

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.
6.8 Cleaning and lubricating the single-fastener tool
1. Spray the piston rings lightly with oil and then use the flat brush to clean them using the flat brush until
the rings are free to move.
2. Use the flat brush to clean the thread on the fastener guide.
3. Use the large round brush to clean the inside of the housing.
4. Dismantle the exhaust gas piston return unit.
5. Clean the exhaust gas piston return unit.
6. Spray the cleaned parts with the supplied Hilti lubricant spray.
Note
Use only Hilti lubricant spray or a product of comparable quality. Use of other lubricants may
damage the tool.
7. Fit the exhaust gas piston return unit.
8. Assemble the tool.
6.9 Cleaning and lubricating the magazine tool
1. Spray the piston rings lightly with oil and then use the flat brush to clean them using the flat brush until
the rings are free to move.
2. Use the flat brush to clean the thread on the fastener guide.
3. Use the large round brush to clean the inside of the housing.
4. Dismantle the exhaust gas piston return unit.
5. Clean the exhaust gas piston return unit.
6. Spray the cleaned parts with the supplied Hilti lubricant spray.
Note
Use only Hilti lubricant spray or a product of comparable quality. Use of other lubricants may
damage the tool.
7. Fit the exhaust gas piston return unit.
8. Assemble the tool.
6.10 Assembling the single-fastener tool
1. Check whether there is a cartridge in the tool, and remove it if there is.
2. Fit the exhaust gas piston return unit.
3. Fit the piston.
4. Fit the buffer onto the fastener guide.
5. Screw on the fastener guide.
Printed: 16.03.2017 | Doc-Nr: PUB / 5292586 / 000 / 02
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