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Check for dirt and foreign matter. Clean if necessary.
Check that the controls function correctly. Have repairs
carried out if necessary.
Check that the cut-off wheel is in perfect condition.
Replace if necessary.
Check that all externally accessible nuts and screws are
securely tightened.
Check that the fuel filter is clean. Replace it if neces-
sary.
Replace the air filter if the product does not start or
engine performance fades noticeably.
Clean or replace the spark plug if the product does not
start or is difficult to start.
Adjust the idling speed if the cut-off wheel does not
slow to a standstill when the engine is idling.
Have the product repaired by Hilti Service if the drive
belt slips when a load is applied to the cut-off wheel.
7.2
Cleaning or replacing the air filter
ATTENTION
Risk of damage. Entry of dust causes irreparable damage to the product.
▶ Never operate the machine if the air filter is damaged or missing.
▶ When changing the air filter, the product should stand upright and should not be laid on its side. Take
care to ensure that no dust finds its way onto the underlying filter screen.
Change the air filter if engine performance drops noticeably or if the engine becomes difficult to start.
1. Release the securing screw on the air filter cover and remove the cover.
2. Carefully remove the dust adhering to the air filter and the filter chamber (use a vacuum cleaner).
3. Release the four screws retaining the filter holder and remove the air filter.
4. Fit the new filter and secure it with the filter holder.
5. Fit the air filter cover and tighten the retaining screws.
7.3
Replacing a broken starter cord
ATTENTION
Risk of damage. The housing may suffer damage if the starter cord is too short.
▶ Never continue to use a broken starter cord. Replace it immediately.
1. Unscrew the three securing screws and remove the starter assembly.
2. Remove the remaining pieces of the starter cord from the spool and the starter handle.
3. Make a secure knot in the end of the replacement starter cord and then pass the free end of the cord
through the hole in the spool from above.
4. Pass the end of the cord through the opening in the starter housing from below, also through the starter
handle from below, and then make a secure knot in the end of the cord.
5. Pull a length of the starter cord out of the housing as shown in the illustration and pass it through the slot
in the spool.
6. Hold the cord securely close to the slot in the spool and then rotate the spool in a clockwise direction as
far as it will go.
7. Rotate the spool back from its end point at least a ½ revolution, max. 1 ½ revolutions, until the slot in the
spool is in alignment with the opening in the starter housing.
8. Hold the spool securely and pull the free end of the cord out of the housing towards the starter handle.
9. Hold the cord under tension, release the spool and allow the starter cord to be pulled in.
36
English
Before use
✓
✓
✓
✓
10
11
2271384
Every 6
If necessary
months
✓
✓
✓
✓
✓
✓
✓
✓
*2271384*
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