Husqvarna K1250 Manual Do Utilizador

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16 – 
English
MAINTENANCE
Tensioning the drive belt
The drive belt is fully enclosed and well protected from 
dust and dirt.
When tensioning the drive belt, slightly loosen the nuts (A) 
holding the cutting head and belt guard.
Turn the tension screw so that the nut (B) aligns with the 
arrow on the guard. Shake the head to ensure the spring 
can tension the belt. The belt now automatically has the 
right tension.
Tighten the nuts holding the cutting head.
Replacing the drive belt
Loosen the two screws (A).
Turn the tension screw (B) until tensioning stops.
Remove the two screws (A).
Remove the front belt guard (C)
Remove the belt from the belt pulley.
Remove the cutting head.
Remove the screw (D). Remove the side cover.
Replace the drive belt.
Assemble in the reverse order as set out for dismantling.
Check that the blade guard over the cutting blade is not 
cracked or damaged in any other way. Replace when 
damaged.
Belt pulley and clutch
Never start the engine when the belt pulley and clutch are 
removed for maintenance.
Carburetor
Your Husqvarna product has been designed and 
manufactured to specifications that reduce harmful 
emissions. After the engine has used 8-10 tanks of fuel the 
engine will be run-in. To ensure that it continues to run at peak 
performance and to minimise harmful exhaust emissions 
after the running-in period, ask your dealer/service workshop 
(who will have a rev counter at their disposal) to adjust your 
carburettor.
Function
The carburettor governs the engine speed via the throttle. 
Air and fuel are mixed in the carburettor.
High speed jet
The carburetor is equipped with fixed H-jet to ensure the 
engine always receives the correct fuel air mixture.
If the engine lacks power or accelerates poorly do the 
following:
Check the air filter and replace if necessary.
When this does not help, contact an authorised service 
workshop.
Low speed jet L
Apply full throttle a couple of times and check that the saw is 
accelerating without hesitation.
Basic setting L: 1 1/4 turn open.
If an adjustment is necessary, try to reach the maximum idle 
speed, by slowly closing the low speed needle L clockwise 
until the engine starves from fuel. Then open (counter-
clockwise) 1/8 of a turn.
Check the engine acceleration.
CAUTION!  A too lean adjusted low speed needle (the L-
needle closed too much) results in starting difficulties.
IMPORTANT INFORMATION The tension of a new drive 
belt must be readjusted after one or two tanks of fuel have 
been used.
!
WARNING! Never use the power cutter 
without a blade guard over the cutting blade.
!
WARNING! Do not start the machine without 
the cutting arm or cutting head fitted. 
Otherwise the clutch could come loose and 
cause personal injuries.