Blades; Gear Case; Cooling System; Maintenance Schedule - Jonsered HT2122T Owner's Manual

Blades

The blades have been fitted
in the blade guide with four
resp. five screws. These
screws must be tightened so
that the clearance is
sufficient for the blades to
move freely.
When there is not
enough clearance:
The blades cannot move
freely. There is too much
friction on the sliding
surfaces.
When there is too
much clearance:
The blades do not cut
efficiently.
Adjusting the
clearance:
1. Release the nuts on the
blades.
2. Tighten the screws as far
as possible, and then
release the screws a half
turn.
3. Tighten the nuts without
turning the screws.
Replace the screws in the
blade guide as soon as they
have been worn or damaged.
Replace the blades as soon as
they have been damaged.
NOTE!
Lubricate the sliding surfaces
of the blades with machine
oil.
WARNING!
Gloves should always be worn when
handling the blades.

Gear case

Apply a good quality lithium
based grease through the
grease fitting until a small
amount comes out between
the cutter blades and the gear
case. Lubrication shold be
applied at 50 hour intervals
and more frequent at heavy
use.
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Maintenance
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Cooling system

To maintain as low an
operating temperature as
possible the engine is
equipped with a cooling
system.
The cooling system consists
of:
1. An air intake on the
starte unti.
2. Cooling fins on the
flywheel.
3. Cooling fins on the
cylinder.
4. Cylinder cover (leads
cold air onto the
cylinder).
Clean the cooling system using a brush at least once a week,
in difficult conditions more often.
A dirty or blocked cooling system leads to the
engine overheating resulting in damage to the
cylinder and piston.

Maintenance schedule

Below you will find some general maintenance instructions.
For futher information please contact your service dealer.
Daily maintenance
• Clean the exterior of the hedge trimmer.
• Check the blade guard and hand guard for damage or
cracking.
• Check that the teeth on the blades are sharp and
undamaged.
• Check that the blade nuts are sufficiently tightened.
• Check that nuts and screws are sufficiently tightened.
Weekly maintenance
• Check the starter, especially cord and return spring.
• Clean the exterior of the spark plug.
• Remove the spark plug and check the electrode gap. Adjust
it to 0.5 mm, or change the spark plug.
• Clean the cooling fins on the cylinder and check that the
air intake at the starter is not clogged.
• Clean the air filter.
• Check that the gear case is filled with grease.
Monthly maintenance
• Rinse the fuel tank with gasoline.
• Clean the exterior of the carburettor and the space around
it.
• Clean the fan and the space around it.
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