Dolmar MH-2556 Manuel D'instructions page 15

Blade adjustments
Extended use of the pole hedge trimmer will gradually wear down the blades.
Readjust the blades if cutting performance deteriorates noticeably. For adjustment
of the blades follow the instructions below.
1. Release nut .
2. Tighten screw lightly until resistance is felt. Then turn the screw in the
opposite direction for a quarter or half turn.
3. Hold screw in place with a screwdriver and tighten nut
4. After adjustment lubricate the blades with a thin film of light oil.
5. Start the engine and pull the throttle lever several times to set the blades in
motion. Continue for approx. one minute.
6. Stop the engine and wait until the blades come to a standstill. Cautiously touch
the blades with your bare hand. Adjustment is correct if the blades are warm,
but not too hot to touch. If the blades are too hot to be touched, release screw
for another quarter to half a turn and repeat steps 5~6 to confirm proper
adjustment.
NOTE: Always stop the engine and remove the spark plug cap before adjusting
the blades!
The blades have grooves around the truss screws
these grooves clean so that they can be inspected for possible damage.
Hexagonal U-nut
Truss screw
Flat washer
Blunt extension
Blade guide
Upper blade
Lower blade
Cleaning the air cleaner - Every 8 hours (daily)
- Remove the air cleaner cover.
- Remove the sponge element. Wash the sponge element in lukewarm water and
allow to dry completely.
- Replace the cleaned and dried sponge element and then replace the air cleaner
cover.
Note: Clean the air cleaner on a daily basis. A clogged air cleaner may make it
difficult or impossible to start and/or accelerate the engine.
Checking the spark plug - Every 8 hours (daily)
- Only use the universal wrench provided to remove and replace the spark plug.
- The spark plug gap should be 0.6~0.7 mm. Adjust the spark plug gap if it is too
wide or too narrow. Clean or replace the spark plug if contaminated and/or
clogged with carbon residue. Always replace with the same type of spark plug.
.
. Always keep
15
Element
Screw
Air cleaner cover