EarthQuake 9050140 ユーザーズマニュアル

Regular Maintenance

Service Interval: every 25 Hours, or As Necessary
The chipping knives of this unit can be rotated or sharpened 

to provide a new cutting surface as required.  When 

inspecting the knives be careful to avoid touching the 

sharpened edges.  To inspect the chipping knives:
 1.  Disconnect the spark plug wire and secure it away from 

the spark plug.

 2.  See Figure 8.  Remove the nuts securing the chipper 

cone to the front of the chipper.  Remove the chipper 

cone (A) to access the knives.

 3.  Using the recoil starter, slowly pull the starter rope to 

rotate the rotor into position so the blades can be seen.

To sharpen or replace the chipper knives, see the 

Troubleshooting and Repair section.

Service Interval: every 25 Hours
The engine air cleaner assembly should be opened, 

inspected, and the filter element replaced every 25 hours, or 

as required if debris has built up in the assembly.
To replace the air filter and pre-cleaner assembly:
 1.  Loosen the screw (A, Figure 9) and remove the filter 

cover (B).

 2.  Inspect the pre-cleaner (C) and air filter element (D).  If 

either are soiled, then replace.

 3.  Insert the new pre-cleaner (C) and air filter element (D) 

inside the filter cover (B).  Make sure the arrows on the 

filter element are pointed up, and the lip of the pre-

cleaner covers the bottom filter pleats.

 4.  Insert the cover tabs (F) into the filter base slots.
 5.  Tilt the cover up into place and tighten the screw (A).

Please contact your authorized dealer to perform this 

service.