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BEFORE INSPECTING OR SERVICING ANY PART OF THIS MACHINE, SHUT OFF POWER SOURCE, DISCONNECT SPARK PLUG
WIRE FROM SPARK PLUG AND MAKE SURE ALL MOVING PARTS HAVE COME TO A COMPLETE STOP.
5.6 TRANSMISSION BELT/CHAINS TENSIONING AND REPLACEMENT
See Figure 5.1 for illustration.
1. Shut off the engine. Disconnect the spark plug wire.
2. Remove the front cover (1).
3. Loosen the four bolts (2) fastening the spindle hub to
the trimmer bottom frame. This will allow the spindle
hub with the attached trimmer pulley to move freely.
4. Remove the four bolts (3) and washers (4) attaching
the transmission cover (5) to the transmission
mount bracket (6). Remove cover (5) to expose the
transmission and gain access to the belts.
5. Remove drive belt from engine pulley.
6. Remove worn or broken transmission belt.
7. Install new transmission belt and reinstall drive belt.
8. Install cover (5) using four bolts (3) and washers (4).
9. Move spindle hub forward to apply belt tension.
Tighten four bolts (2).
The transmission belt and chains are tensioned by moving
the transmission front to back.
10. Remove the transmission cover (5) as described in
step 4.
11. Loosen the nuts (10) on each end of the transmission
as well as the two on the bottom side of the axle base.
The nuts should be loosened just enough to allow
movement.
12. Increase/decrease tension as needed. Tighten nuts
(10) that were loosened in step 11.
13. Reinstall cover (5) using four bolts (3) and washers (4).
WARNING
●
A belt that is too tight will damage bearings/spindle
shaft/belt
●
A belt that is too loose will slip and cause premature
failure.
●
The engine should be placed under load while in
thick grass, if not the belt may be slipping.
10
WHEELED TRIMMER
SERVICE & MAINTENANCE
NOTE
10
10
11
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