Echo CH8670H Owners Manual v.2 - Manual (Page 22)

18 TURNTABLE CHIPPER
SERVICE & MAINTENANCE
BEFORE INSPECTINg OR SERVICINg ANy PART OF THIS MACHINE, SHuT OFF POWER SOuRCE,
DISENgAgE THE HyDRAulICS, OPEN SHIElD AND MAkE SuRE All MOVINg PARTS HAVE COME TO A COMPlETE STOP.
WaRNING
5.9 TRaILER SERvIcE TIpS 5.8 cLEaRING a pLuGGEd dISk
If the machine becomes plugged, lift the engagement
handle, shut off the engine, disconnect the spark plug
wire and allow the machine to come to a complete
stop before clearing debris. Do not operate the ma-
chine without proper guards and shields in place.
WaRNING
Feeding too large or too much material at once may plug
the chipper. To clear a plugged disk, proceed as follows:
lift the engagement handle and turn off engine key switch. 1.
allow all moving parts to come to a complete stop.
Remove the two 3/8" retaining bolts holding the access
2.
cover to the chipper frame and lift up access cover.
Remove the lock pin from storage position (see below).
3.
Turn check valve clockwise to engage the jack pump. 4.
Pump the handle to raise the feed roller until the lock pin 5.
position aligns with one of the support bracket holes.
Secure the position by putting the lock pin through the
6.
support bracket and lock pin position.
Clean the debris away from the chipper disk. Turn the disk
7.
by hand to be sure it is free to rotate. Be careful to avoid
the chipper blades when cleaning out the debris.
remove the lock pin and put it back in storage
8.
position. lEAVINg THE lOCk PIN IN ANy OTHER
POSITION MAy INTERFERE WITH FEED ROllER
OPERATION.
turn the check valve counterclockwise to disengage
9.
the pump and lower the jack.
Close access cover and replace bolts.
10.
Start the engine. lower the engagement handle 11.
when engine is running to engage drive belt. resume
operation at 1/4 throttle.
LOCK PIN IN
STORAGE
POSITION
LOCK PIN
POSITION
SUPPORT
BRACKET
FEED
ROLLER
JACK
CHECK
VALVE
Figure 5.4 - Feed Roller Jack
5.10 dRIvE bELTS
5.10.1 REpLacING dISk dRIvE bELT
Check the condition of the drive belt annually or after ev-
ery 25 hours of operation, whichever comes first. If the
belt is cracked, frayed, worn or stretched, replace it. Re-
place belt with original banded type belt only. Do not use
single type belts.
lift engagement handle to disengage drive belt. 1.
loosen bolt on engine tie. DO NOT REMOVE. 2.
loosen the bolts securing the belt kicker to the 3.
engine (located above the small sheave). DO NOT
REMOVE.
assure the belt tensioning bolts on the engine mount
4.
plate are tight against the engine mount.
Turn each of the two bolts eight revolutions
5.
counterclockwise.
loosen the four engine mount bolts and slide engine
6.
towards chipper housing.
Remove the large idler pulley.
7.
using a wrench, pull the small idler pulley away from 8.
the hydraulic belt to release the tension.
Remove the hydraulic drive belt from the drive pulley 9.
on the engine.
remove the old disk drive belt and install new disk
10.
drive belt on engine and large pulley.
Install large idler pulley
11.
lower engagement handle to engage drive belt 12.
Alternately turn each of the belt tension bolts clockwise 13.
an equal number of turns until the belt deflection at the
center of the belt is 7/16” when a 20 lb load is placed
against the belt (Figure 5.6).
If belt does not easily install, turn the two belt tension bolts
counterclockwise an equal number of turns and slide en-
gine closer to chipper until belt can be installed.
NoTE
Check wheel bolt torque monthly. 1.
Check air pressure in tires monthly. 2.
Check and repack wheel bearings with grease every 3.
12 months.
When towing, always connect the safety chains. Make
4.
sure trailer hitch bolts are tight.
Check trailer lights periodically.
5.