Husqvarna 331R Operator's Manual page 10

8. Adjust the cable adjuster sleeve (C).
a) Make sure the stop on the carburettor throttle
cam touches the throttle stop correctly.
b) Make sure the cable position keeps 1-2 mm
between cable lug (F) and slot fitting when the
throttle trigger is fully pushed.
1-2mm
9. When the throttle cable (A) is adjusted correctly,
tighten the locknut (G).
10. Connect the stop switch wires (H) with the
connectors from the engine.
H
11. Install the air filter cover.
To install a blade guard and grass
blade
CAUTION: Only use the approved guard for
the blades. See
1. Attach the blade guard/cutting attachment guard (A)
onto the shaft and tighten with the bolt (L).
L
10
Accessories on page 22 .
A
C
A
2. Install the drive disc (B) on the output shaft.
3. Turn the output shaft until one of the holes in the
drive disc aligns with the related hole in the gear
housing.
4. Put the locking pin (C) in the hole to lock the shaft.
5. Put the blade (D), support flange (G) and support
cup (F) on the output shaft.
6. Put the support cup (F) on the output shaft with the
not flat side against the blade.
7. Install the nut (E). Hold the shaft of the wrench near
the blade guard as much as possible. To tighten the
nut, you must turn the wrench in the opposite
direction of rotation. Tighten the nut to a torque of
35-50 Nm (3.5-5 kpm).
Note: Left hand thread.
To install blades and trimmer heads
WARNING: Only use the approved guard for
the blades. See
can cause injury.
WARNING: If you operate the product with a
grass blade, first install the correct
handlebar, blade guard and harness .
WARNING: If you do not install the the
blades correctly, it can cause injury.
1. Make sure that the lifted section on the drive disc/
support flange engages correctly in the center hole
of the blades.
B
E
F
D
A
B
C
page 22 . A defective guard
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