Husqvarna K750 User Manual

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English
 – 17
MAINTENANCE
Tensioning the drive belt
When the machine is equipped with a friction retarder, a 
scraping sound can be heard from the bearing housing 
when the blade is turned by hand. This is quite normal. 
Please contact an accredited Husqvarna workshop if you 
have any questions.
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 
tension.
Tighten both of the screws holding the cutting head using 
a T-wrench.
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.
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.
Carburetor
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 
following:
Check the air filter and replace if necessary.
When this does not help, contact an authorised service 
workshop.
IMPORTANT INFORMATION The tension of a new drive 
belt must be readjusted after one or two tanks of fuel have 
been used.
!
WARNING! Do not start the machine without 
the cutting arm or cutting head fitted. 
Otherwise the clutch could come loose and 
cause personal injuries.