MAINTENANCE
Figure 16
Mounting Bolt
1111111
Trimmer Hou
sin
g
Trimmer Head
A WARNING
Before you remove the drive belt, disconnect the wire from
the spark plug.
IMPORTANT: Test the drive system. Start the engine and
move the throttle control to the FAST position. Engage and
disengage the trimmer head several times. When disen-
gaged, make sure the trimmer head completely stops when
resting on the ground. If the trimmer head continues to
rotate, take the trimmer to an authorized Service Center.
NOTE: Make sure you replace the drive belt only with a
replacement belt from the factory. The length of the belt is
45.67±0.1 in. [1160±2.5mm], the angle is
37", and the section
is 3L.
5. To assemble the drive belt, reverse the above steps.
6. The torque specs are 9.6-14.8 foot-pounds [13-20 Nm] for
the shield fasteners, 27-33 foot-pounds [36.6-44.7 Nml for
the drive pulley mounting bolt, and 18-25 foot-pounds
[24.4-34 Nm] for the trimmer head bolts.
7. Check the routing of the drive belt. Make sure the drive
belt is inside of all belt guides and that the belt is not
twisted. (See Figure 17)
To replace the drive belt, the trimmer head and shield must
be removed as follows.
1. Remove the two fasteners that hold the rear of the shield
to the trimmer housing. (See Figure 16)
2. Remove the four fasteners that hold the front of the shield
and trimmer head to the trimmer housing.
3. Remove the "V" Pulley from the idler bracket.
(See Figure 17)
4. Raise the front of the trimmer housing and remove the
drive belt. Do not bend the belt guides.
HOW TO REPLACE THE DRIVE BELT
Drive Pulley
NOTE: View is bottom of the unit
Figure 17
Page 16
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