Echo 73050 Owners Manual v.1 - Manual (Page 12)

10
Engine Maintenance
Maintenance is essential in preserving engine life.
The engine should be cleaned periodically to
remove grass and build-up. The engine owners
manual addresses cleaning the air filter and
changing the oil. Service engine according to the
maintenance schedule in your engine owners
manual.
Service & Maintenance-Cont.
9. Replace front cover and secure with bolts.
10. Replace the handle support channel (back
cover with handlebar adjustment tabs). The bolts
should be secured with the bolt head beneath and
the nuts and washer above the trimmer body.
Check the condition of the drive belt annually or
after 30 hours of operation, whichever comes first.
If the belts are cracked, frayed, or worn, replace
them by following the steps below.
Belt Replacement Requirements: Belt Replacement Requirements: Belt Replacement Requirements: Belt Replacement Requirements: Belt Replacement Requirements:
• One (1) 1/2” wrench or one (1) 1/2”
socket/ ratchet
1. Shut off the engine. Disconnect the spark
plug wire.
2. Remove the front cover weldment. Requires
loosening and removing three bolts.
3. Loosen the four bolts fastening the spindle
hub to the trimmer bottom frame. This will allow
the spindle hub with the attached trimmer pulley
to move freely.
4. Remove the handle support channel (back
cover with tabs to adjust the handlebar). Re-
quires loosening and removing four bolts.
5. Loosen the two bolts attaching the flap to the
trimmer bottom frame.
6. Remove worn or broken belt. If the belt is
badly worn and will not be used again, cut for
ease in removal.
7. Install new belt from the front to the back.
Feed belt above the front trimmer pulley and
below the rear pulley.
8. Move the spindle hub by inserting a screw-
driver in the slot on the rear side of the spindle
hub and applying pressure forward until belt is
tight. Tighten bolts.
Belt Replacement Steps:
Drive Belt Checking and Replacement