Echo DCS-3500 Operator's Manual page 34

Maintenance and care
Sprocket
* Worn out: 0.5 mm
Cooling system
1.Air outlet
1.Bolt
2.Top cover
1.Air filter
Replacement guide bar and chain
Length cm
35 C35S90-52SA- ET
1.Brake drum
3.Two hooks
2.Hook
Guide bar
1. The damaged sprocket will cause premature damage or
wear of saw chain. - When the sprocket has worn out 0.5 mm
or more, replace it.
2. Check sprocket when you install new chain. Replace it if
worn.
3. Check brake drum, if it not rotates by hand, ask your dealer
for repair.
1. Check periodically.
2. Remove dirt and dust of various sorts blocking the air outlet.
Air filter
1. Make sure battery is removed.
2. Remove the bolt from top cover.
3. After lifting the back side of the top cover, pull it back to re-
move it.
4. Push in the two hooks on the side and remove the air filter.
5. Remove the remaining chips with compressed air.
6. Brush dirt from air filter or wash it in a suitable cleaner. If filter
is excessive dirty or no longer fits properly, replace it.
7. Completely dry the air filter.
8. After attaching the air filter to the hook, install it in the reverse
procedure.
Chain
90PX-52E
32
Sprocket (Part number)
(A556-001800)