English
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ASSEMBLY
Assembling the cutting head
Remove the bolt (1) and nut (2). Remove the guard. Fit the
drive belt on the clutch drum. Fit the guard and tighten the
screws.
Run the drive belt over the cutting head’s belt pulley (2).
Position the belt guard and secure the cutting head together
with the belt guard. Tighten both bolts (4) by hand.
Screw in the tension screw (3) so that the square nut aligns
with the arrow on the belt guard. Shake the head to ensure
the spring can tension the belt. This automatically adjusts the
belt to the correct tension. Tighten both bolts (4) using the
combination spanner. NOTE! When a belt is fitted the belt
tension must be readjusted after the first two tanks of fuel
have been used.
Checking the drive axle and flange
washers
Check that the threads on the drive shaft are undamaged.
Check that the contact surfaces on the blade and the flange
washers are undamaged, of the correct dimension, clean,
and that they run properly on the drive axle.
Do not use warped, notched, indented or dirty flange
washers. Do not use different dimensions of flange washers.
Fitting the cutting blade
Husqvarna cutting blades are manufactured and approved for
freehand cutting. The paper labels on each side of the blade
are there to distribute the pressure from the flange washer
and prevent the blade from slipping.
The blade is placed on the bushing (C) between the inner
flange washer (A) and the flange washer (B). The flange
washer is turned so that it fits on the axle.
The shaft can be locked using a screwdriver, steel pin or the
like. This is slid in as far as possible. The blade is tightened
clockwise.
Tightening torque for the bolt holding the blade is: 15-25 Nm
(130-215 in.lb).
Guard for the blade
The guard must always be fitted on the machine. The guard
for the cutting equipment should be adjusted so that the rear
section is flush with the work piece. Spatter and sparks from
the material being cut are then collected up by the guard and
led away from the user.
!
WARNING! A 16 inch blade guard should
only be used on power cutters initially
equipped with a 16 inch blade guard. If a
guard obtained as a spare part is fitted on a
power cutter which is equipped with a 12 or
14 inch guard, a 16 inch blade will run too
fast. A cutting blade running at a too high
speed can break or cause serious damage.
Summary of Contents for VentMaster 3120K
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