Echo CH4400 Owners Manual v.2 - Manual (Page 21)

4 INCH CHIPPER
17
ENGLISH
SERVICE & MAINTENANCE
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.
WARNING
Check the condition of the drive belt(s) annually or after
every 25 hours of operation, whichever comes first. Replace
a cracked, frayed, worn or stretched drive belt. Only replace
drive belt with original banded type belt. Do not use single
type belts. To adjust the drive belt(s), proceed as follows:
1. Place the chipper engagement lever in the START
position (see Figure 5.3).
5.8 DRIVE BELT ADJUSTMENT
2. Shut engine off.
3. Remove the seven 5/16 x 3/4" bolts securing the
belt shield to the shield weldment. Remove the belt
shield.
4. To increase tension on the belt, do the following:
a. Move the engagement lever to the CHIPPING
position (see Figure 5.4).
Figure 5.5 Adjustment bolts
Figure 5.3 Engagement handle in START position
Figure 5.4 Engagement handle in CHIPPING position
b. Loosen the four carriage bolts attaching the engine
plate to the trailer.
c. Locate the two 5/16 x 3" bolts and 5/16" flange
nuts located on the side of the chipper between the
trailer and the engine plate (see Figure 5.5).
d. Tighten both 5/16" bolts equally to move the
engine away from the chipper housing until the
belt deflection is about 7/16" when a 20 lb. load is
placed against the belt (see Figure 5.6).
e. Tighten the four carriage bolts securing the engine
plate to the trailer.
f. Tighten both 5/16" flange nuts to ensure the proper
deflection is maintained.
6. To loosen tension on the belt, do the following:
a. Move the engagement lever to the CHIPPING
position.
b. Loosen the four carriage bolts attaching the engine
plate to the trailer.
c. Loosen both 5/16" flange nuts.
d. Loosen both 5/16 x 3" adjustment bolts equally and
push the engine plate against the bolts. Loosen
bolts until the belt deflection is about 7/16" when
a 20 lb. load is placed against the belt (see Figure
5.6).
e. Tighten the four carriage bolts securing the engine
plate to the trailer.
f. Tighten both 5/16" flange nuts to ensure the proper
deflection is maintained.