4 adjusting the drive belt on model dl12670 – Echo DL10570 Owners Manual v.2 User Manual
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Debris Loader Owner’s Manual
16
SERVICE & MAINTENANCE
BEFORE INSPECTING OR SERVICING ANY PART OF THIS MACHINE, SHUT OFF POWER SOURCE,
AND MAKE SURE ALL MOVING PARTS HAVE COME TO A COMPLETE STOP.
WARNING
Check the condition of the drive belt annually or after every
25 hours of operation, whichever comes first. Replace a
cracked, frayed, worn or stretched drive belt. To adjust
the drive belt, proceed as follows:
1. Move the engagement lever to the start position.
2. Shut engine off and wait for all moving parts to come
to a complete stop.
3. Disconnect spark plug wire.
4. Remove the belt shield by removing the 11 bolts
securing the belt shield to the rotor weldment.
5. Loosen the 5/16" bolt attaching the belt guide to the
engine (Figure 1).
6. Move the engagement lever to vacuum position.
7. To increase tension on the belt, do the following:
a. Loosen the four carriage bolts attaching the engine
plate to the trailer (Figure 2).
5.4 ADJUSTING THE DRIVE BELT ON MODEL DL12670
Figure 1, Drive belt, DL12670 (75124)
Figure 2, Engine plate carriage bolts
SPAN LENGTH
FORCE
20 LBS
7/16" DEFLECTION
Figure 4, Belt tension
b. Locate the engine plate push off bolt located above
the gas tank. If needed, the gas tank can be
removed for better access to the push off bolt.
c. Loosen the jam nut (Figure 3).
d. Tighten the push off bolt to move the engine away
from the rotor housing until the belt deflection is
7/16" when a 20 lb. load is placed against the belt
(Figure 4).
e. Tighten the four carriage bolts securing the engine
plate to the trailer.
f. Tighten the jam nut to ensure the proper deflection
is maintained.
7. Replace the belt if the engine cannot be adjusted any
further and the idler arm comes in contact with the
engagement lever rollers when in the run position.
8. Adjust the lower belt guide so there is 1/8" clearance
between the belt and the belt guide.
9. Move the engagement lever to the start position.
10. Reinstall the belt shield.
11. Reconnect spark plug wire.
Figure 3, Jam nut and push off bolt