Echo HCAS-235ES-LW Operator's Manual page 27

1. Outer tube
2. Gearcase clamp bolt
1. Drive shaft
50-Hour Maintenance
1. Fuel filter
3. Gearcase
4. Index bolt
2. Fuel line
Maintenance and care
Drive shaft lubrication
1. Loosen the gearcase clamp bolt.
2. Remove the index bolt from gearcase.
3. Remove the outer tube from the gear housing.
4. Pull the drive shaft from the outer tube, and wipe clean. Re-
coat with a thin coating 15 mL of grease.
5. Slide the drive shaft back into the outer tube, being careful
not to get dirt on the drive shaft.
6. Align the screw hole in gear case with the locating hole in
outer tube, install and tighten index bolt, and tighten gear-
case clamp bolt.
Cylinder cooling fins
Remove and clean the cylinder cover and clean dirt and debris
from the cylinder cooling fins.
Remove and replace the fuel filter
Use a piece of metal wire or the like to pick up fuel filter
through fuel tank opening.
Pull old filter from fuel line.
Install new fuel filter.
NOTE
If filter is excessive dirty or no longer fits properly, replace it.
25