Maintenance, Safety lock, Reduction gearbox – Husqvarna 226HD75S User Manual

Page 17: Anti-vibration system, Muffler, Spark arrester

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17

English

SAFETY LOCK

• Stop operation when the safety lock is defective.
• Safety lock is the device not to accelerate the throttle

lever without intention. While pushing the safety lock,
you can accelerate the throttle lever.

1. Check if the throttle lever does not move when you do

not push the safety lock.

2. Check if the throttle lever moves when you grasp or

release it while pushing the safety lock.

3. Check if the safety lock returns to its original position

when you release your hand from safety lock.

• If you find any defects at the checks above, contact your

nearest servicing dealer for repair.

REDUCTION GEARBOX

Refill gear housing every 50 working hours.
Use greese pump. Feed greese until it comes out of the

base of blades.

• Grease nipple : A type

ANTI-VIBRATION SYSTEM

The deformed or damaged anti-vibration system may

cause of the breakages like getting rickety or falling off of
engine and/or blade

• Check periodically if the rubber cushions are not

deformed or damaged.

PROCEDURES TO BE PERFORMED

AFTER EVERY 100 HOURS OF USE

1. Tighten all screws, bolts, and fittings.
2. Check to see if any oil or grease has worked its way in

between the clutch lining and drum, and if it has wipe it
away using oil-free, lead-free gasoline.

3. Remove the muffler, insert a screwdriver into the vent,

and wipe away any carbon buildup. Wipe away any
carbon buildup on the muffler exhaust vent and cylinder
exhaust port at the same time.

MUFFLER

• Inspect periodically, the muffler for loose fasteners, any

damage or corrosion. If any sign of exhaust leakage
is found, stop using the machine and have it repaired
immediately.

• Note that failing to do so may result in the engine

catching on fire.

• Before starting operation, always make sure to check if

the muffler is properly held by three bolts. (Fastening
Torque : 8 to 12 N·m)

• Also make sure that the speak arrester and the diffuser

are properly attached with four bolts. (Fastening Torque :
2 to 3 N·m)

• Even if one of seven bolts is loose, it may result in engine

catching on fire.

SPARK ARRESTER

• Some mufflers may be equipped with a spark arrester to

prevent sparks from flying out from the exhaust outlet.
If your machine has this type of muffler, periodically
inspect and clean as necessary with a wire brush.

Maintenance

(1)

(1) Safety lever

IMPORTANT

WARNING

(1)

(2)

(1) Bolt
(2) Spark arrester

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