Shindaiwa AH254, Owner'S/Operator'S Manual

Page: 17 / 32

17
Fuel filter maintenance
Fuel filter element
Hooked wire
Outer tube
Gearcase
Gearcase Clamp bolt
Index bolt
Remove the outer tube from the gearcase
Gearcase lubrication
Maintenance (continued)
50-hour maintenance
Every 50 hours of operation ; more
frequently in dusty conditions:
■
Remove and clean the cylinder
cover and clean dirt and debris from
the cylinder cooling fins.
Remove and replace the fuel filter
element.
■
Use a hooked wire to extract the fuel
filter from inside the fuel tank. Inspect
the fuel filter element. If it shows
signs of contamination, replace with a
genuine Shindaiwa replacement fuel
filter element.
CAUTION!
Make sure you do not pierce the
fuel line with the end of the hooked
wire. The line is delicate and can be
damaged easily.
Before reinstalling the new filter
element, inspect the condition of all
the fuel system components (fuel
pick-up line, fuel return line, tank vent
line, tank vent, fuel cap and fuel tank).
If damage, splitting or deterioration
is noted, the unit should be removed
from service until it can be inspected
or repaired by a Shindaiwa-trained
service technician.
NOTE:
Federal EPA regulations require all model year 2012 and later gasoline powered
engines produced for sale in the United States to be equipped with a special
low permeation fuel supply hose between the carburetor and fuel tank. When
servicing model year 2012 and later equipment, only fuel supply hoses certified
by EPA can be used to replace the original equipment supply hose. Fines up to
$37,500 may be enforced for using an un-certified replacement part.
CAUTION!
Do not remove the D-shaped shim
washer from the gearcase clamp!
The shim washer prevents damage
from over tightening the tube clamp
bolt.
Gearcase lubrication
To perform this operation, first remove
the gearcase from the outer tube as
follows:
1. Loosen the gearcase clamp bolt.
2. Remove the index bolt from the gearcase.