Makita DPC7321HD Brush Cutter User Manual


 
21
Replacing the spark plug
CAUTION
:
Do not touch the spark plug or plug cap if the engine is
running (high voltage).
Switch off the engine before starting any maintenance
work.
A hot engine can cause burns. Wear protective gloves!
The spark plug must be replaced in case of damage to the
insulator, electrode erosion (burn) or if the electrodes are very
dirty or oily.
Turn the cover lock (6) to the ”Unlocked ” position and care-
fully remove the lter cover (7).
Flip up the spark-plug cover (8).
Pull the plug cap (8) off the spark plug. Use only the combination
wrench supplied with the saw to remove the spark plug.
Electrode gap
The electrode gap must be 0.5 mm.
Pre-lter (foam) and inner lter
If the pre-lter (1) and inner lter (3) are dirty, wash them out in
lukewarm water with regular dishwashing liquid.
Dry pre-lter and inner lter thoroughly.
NOTE: The pre-lter needs cleaning at least daily, or more often
if the Power Cut is used in very dusty conditions. If cleaning on-
site is not possible, keep a replacement pre-lter on hand.
Replace the pre-lter after every 20 operating hours at the
latest.
To improve ltration, wet the pre-lter with air lter oil. Before
doing this, carefully clean the pre-lter with air lter cleaner. Be
sure to follow manufacturer’s instructions.
When inserting the pre-lter in the lter cover, align it with the
cover opening and press it into the cover (5).
Filter insert (paper cartridge)
The air lter insert (2) lters the intake air through a very ne
paper fan lter system, so it must never be washed. Clean the
lter insert once weekly.
To do so, open it slightly and carefully tap it out against a clean
surface.
Replace the lter insert every 100 operating hours. Replace it
immediately if there is loss in power, loss in speed, or smoke
develops in the exhaust.
Before installing the lter system, check the intake opening for
any dirt particles that may have fallen in. If so, remove them.
CAUTION:
If the air lter becomes damaged, replace immediately!
Pieces of cloth or large dirt particles can destroy the en-
gine!
1
5
2
3
4
A
B
6
7
8
9
0,5 mm
CAUTION:
Never clean out the air lter with compressed
air! Do not clean the pre-lter and inner lter
with fual.