Echo DL12653 Owners Manual v.2 - Manual (Page 16)

12 Inch Debris Loader
12
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
1. Shut engine off and wait for all moving parts to come
to a complete stop.
2. Disconnect spark plug wire.
3. Remove the belt shield by removing the 8 bolts securing
the belt shield to the rotor weldment.
5.3 ADJUSTING THE DRIVE BELT - DL12720
Figure 5.1, Drive belt, DL12720
JAM
NUT
PUSH OFF
BOLT
CARRIAGE
BOLT
ENGINE
PLATE
Figure 5.2, Engine plate carriage bolts
SPAN LENGTH
FORCE
20 LBS
7/16" DEFLECTION
Figure 5.4, Belt tension
Figure 5.3, Jam nuts and push off bolts
JAM
NUT
PUSH OFF
BOLT
CARRIAGE
BOLT
ENGINE
PLATE
BELT
IDLER
PULLEY
3/8"
BOLT
NOTE
Before going through the steps below, first try adjust-
ing the eyebolt to gain the adjustment needed for
proper belt tension
4. Loosen the 3/8" bolt attaching the engine tie to the
vacuum housing.
5. Move the engagement lever to the START position.
6. To increase tension on the belt, do the following:
a. Loosen the four carriage bolts attaching the engine
plate to the deck (Figure 2).
b. Locate the engine plate push off bolts located on
side of machine.
c. Loosen the jam nuts (Figure 3).
d. Tighten the push off bolts to move the engine away
from the rotor housing until the belt deflection is
7/16" when a 20 lb. load while the belt engagement
lever is in the VACUUM position. (See Figure 4).
e. Tighten the four carriage bolts securing the engine
plate to the deck.
f. Tighten the jam nuts 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. Move the engagement lever to the VACUUM
position.
9. Adjust the lower belt guide so there is 1/8" clearance
between the belt and the belt guide.
10. Reinstall the belt shield.
11. Reconnect spark plug wire.