Echo 7812086 Owners Manual v.3 - Manual (Page 20)

12 INCH CHIPPER 16
SERVICE & MAINTENANCE
BEFORE INSpECTINg OR SERvICINg ANY pART OF ThIS MAChINE, ShuT OFF pOwER SOuRCE, REMOvE kEY,
DISCONNECT ThE BATTERY CABLES AND MAkE SuRE ALL MOvINg pARTS hAvE COME TO A COMpLETE STOp.
WarninG
The four chipping blades should clear the chipping anvil by
3/16" to 3/8". If damage or uneven wear occurs on the anvil
edge, the other three edges can be used before the anvil
needs to be replaced. To adjust the blade clearance
:
with the chipper motor running and the engagement
handle DISENgAgED, raise and secure the feed
roller (Section 4.5).
Shut the engine off, remove the key, and allow the
rotor to come to a complete stop.
Lift the knife access cover and secure with the lockup
pin (Sec. 4.6).
Rotate the disk until a chipping blade is even with
the anvil.
Secure disk to prevent movement during adjustment
(for example, by wedging a piece of wood between a
rotor paddle and the housing).
Loosen the three 1/2" x 1-1/2" bolts that secure the
anvil to the chipper housing (access is from under-
neath machine, see picture below).
Loosen the two 3/8" adjustment nuts located inside the
anvil backplate (access is from underneath machine,
see picture below).
1.
2.
3.
4.
5.
6.
7.
If the anvil edge is damaged or worn unevenly, remove
anvil and use one of the other three edges. If all edges
are damaged or worn unevenly, replace the anvil.
note
5.6..SettinG.blaDe.ClearanCe
Ensure that the feed roller is raised and secure before
entering the feed chute. Failure to do so can result in
serious injury or death.
DanGer
Adjustment
Nuts
Anvil
Bolts
Blade
Anvil
Measure
Here
Measure the clearance between the chipping blade and
the anvil from inside the feed chute. Adjust both nuts
equally until there is a minimum 3/16" to 3/8" clearance
between the chipping blades and anvil.
Rotate the disk to ensure there is proper clearance
between all four chipping blades and the anvil; adjust
anvil if necessary.
Once proper clearance is achieved, tighten the three
1/2" x 1-1/2" bolts to secure the anvil to the frame.
Tighten the two 3/8" adjustment nuts located inside
the anvil backplate.
Lower the knife access cover by removing the lock pin,
and turning the wing nut on the jack to the left.
Remove the feed roller lock up pin, lower the feed roller
and resume operation.
8.
9.
10.
11.
12.
13.
View of anvil bolts and adjustment nuts from
underneath machine
Measuring clearance between blade and anvil