Hilti FX 3-A Operating Instructions Manual page 24

Maintenance
WARNING
Danger of electric shock! Improper repairs to electrical components may lead to serious injuries including
burns.
▶ Repairs to the electrical section of the tool or appliance may be carried out only by trained electrical
specialists.
• Check all visible parts and controls for signs of damage at regular intervals and make sure that they all
function correctly.
• Do not operate the product if signs of damage are found or if parts malfunction. Have it repaired
immediately by Hilti Service.
• After cleaning and maintenance, fit all guards or protective devices and check that they function correctly.
• Do not attempt care or maintenance work on the battery.
To help ensure safe and reliable operation, use only genuine Hilti spare parts and consumables. Spare
parts, consumables and accessories approved by Hilti for use with your product can be found at your
Hilti Store or online at: www.hilti.group
7.1 Cleaning air filter
The air filter has to be cleaned every 2 months.
1. Open the air-filter flap.
2. Remove the air filter from the air-filter flap.
3. Clean the air filter with a dry soft brush.
4. Place the air filter back in position on the air-filter flap.
5. Close the air-filter flap.
7.2 Checking wear parts
Vapors and sparks produced during welding lead to wear of the stud holder, shielding ring and brass ring.
7.2.1 Checking stud holder
1. Insert a stud into the stud holder.
Result 1 / 2
The stud is held in the stud holder and the stud holder is free of foreign matter.
▶ The stud holder can remain in use.
Result 2 / 2
Spatter is present on the stud holder or the stud holder shows signs of mechanical damage.
The stud is not held in the stud holder and drops out.
▶ The stud holder cannot remain in use.
2. Replace the stud holder.
Materials
Stud holder
X­SH F3 M6­1⁄4"
X­SH F3 M8­5⁄16"
X­SH F3 M10­3⁄8"
X­SH F3 M12­1⁄2"
14 English
14
15
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