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Husqvarna K750 Operator's Manual: Maintenance; Tensioning The Drive Belt; Replacing The Drive Belt; Adjusting Idle Speed; Belt Pulley And Clutch; Carburettor

Husqvarna cut-off saw operator's manual.
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Tensioning the drive belt

The drive belt is fully enclosed and well protected from
dust and dirt.
When the drive belt is to be tensioned, release the bolts
holding the cutting arm.
Screw the adjuster screw so that the square headed nut
comes opposite the marking on the cover. This
automatically ensures that the belt has the correct
Tighten both of the screws holding the cutting head using
a T-wrench.
IMPORTANT INFORMATION The tension of a new drive
belt must be readjusted after one or two tanks of fuel have
been used.

Replacing the drive belt

First release the two bolts and then the adjuster screw to
release the belt tension.
Now unscrew the bolts and dismantle the belt guard.
Remove the belt from the belt pulley.
16 –


The cutting head is now loose and can be removed from
the machine. Remove the rear belt guard by releasing the
two screws holding the guard.
Replace the drive belt.
Assemble in the reverse order as set out for dismantling.
Check that the 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.


The carburettor is equipped with fixed needles to ensure the
machine always receives the correct mixture of fuel and air.
When the engine lacks power or accelerates poorly, do the
Check the air filter and replace if necessary.
When this does not help, contact an authorised service
Adjusting the idle speed
Adjust the idle speed using the T screw. When an adjustment
is necessary, first turn the screw clockwise until the blade
starts to rotate. Now turn the screw anti-clockwise until the
blade stops rotating.
Rec. idle speed: 2700 rpm
WARNING! Do not start the machine without
the cutting arm or cutting head fitted.
Otherwise the clutch could come loose and
cause personal injuries.
WARNING! If the idle speed cannot be
adjusted so that the cutting attachment
stops, contact your dealer/service
workshop. Do not use the machine until it
has been correctly adjusted or repaired.


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