Echo CH45540 Owners Manual v.5 - Manual (Page 16)

4.5 INCH CHIPPER 12
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. Move the engagement lever to the RELEASE
position.
2. Disengage PTO and shut off tractor engine.
3. Remove the PTO shaft from the tractor and disconnect
from the 3 point hitch.
4. Move the engagement lever to the CHIPPING
position.
5. Remove the 5/16" bolts to take off either the front or
rear belt shield.
6. Either tighten or loosen the eyebolt at the base of the
idler until the belt deflection is about 7/16" when a 20
lb. load is placed against the belt.
7. Reinstall belt shields.
5.8 DRIVE BELT ADJUSTMENT
Figure 5.3, Adjustment bolts
FRONT DRIVE BELT
1. Move the engagement lever to the RELEASE
position.
2. Disengage PTO and shut off tractor engine.
3. Remove the PTO shaft from the tractor and disconnect
from the 3 point hitch.
4. Remove the four 5/16 x 5/8" hex bolts and four 5/16
x 3/4" hex bolts securing the front belt shield to the
chipper housing. Remove the shield and set aside.
5. Remove the front bearing snap pin. Then, remove the
1/2 x 1-1/2" bolts that connect the front bearing to the
bearing support weldment.
6. Remove the four 3/8 x 1" carriage bolts, washers and
nylock nuts securing the bearing support weldment
to the chipper housing. Remove bearing support
weldment and set aside.
7. Loosen the eye bolt to release tension on the belt
(Figure 5.5).
8. Remove the 3/8 x 3-3/4" hex bolt, washers and nylock
nut securing the idler pulley to the idler bracket. Remove
the idler pulley.
9. Remove the old belt and install the new belt.
5.9 DRIVE BELT REPLACEMENT
Figure 5.5, Front belt drive replacement