Walker H38i - Fuel Filter; Mower Blades

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Maintenance Instructions REPLACING/REPAIRING
Fuel Filter
Model H38i is equipped with a 10 micron inline fuel
lter between the fuel tank and the fuel pump (low
pressure pump). Replacement of this lter is recom
mended every 200 hours of operation or when con
tamination is suspected or found in the fuel.
InLine
Fuel Filter
Fuel
Pump
Fuel Filter Location
IMPORTANT: Replace the fuel lter only in a clean
area where the fuel line and connections will not be
contaminated by any dust and dirt.
DANGER
Gasoline is extremely ammable and can
be highly explosive. To minimize danger:
● Use only an approved fuel container for
gasoline.
● DO NOT allow open ames or sparks
near the machine while performing main-
tenance or refueling; DO NOT smoke while
working with fuel.
● Wipe up spilled gasoline immediately
and completely.
1. Expand and slide clamps on either side of the
lter away from lter and pull fuel lines off lter.
2. Replace lter, making sure that the arrow on the
lter is aligned with the fuel ow through the
lter.
3. Verify that the fuel lines and clamps are securely
attached, and that no fuel leaks are present.
Mower Blades
Mower blades are removed and remounted as
described in the Sharpen Mower Blades instruc
tions (refer to CHECKING/SERVICING to Sharpen
Mow er Blades in this section). During the course
of sharpening and inspecting mower blades, if there
are any of the following conditions of wear or
dam age, blades should be replaced for reasons
of safe ty and performance of the machine:
● An excessive amount of the at section of the
blade has been ground away (removed) when the
blade is sharpened. Replace the blade when less
than a 3/4 in. (19 mm) at section remains at the
blade tip.
● Examine ends of the blade carefully, especially
the intersection where the at section of the blade
turns up to form the “wing tip” (refer to Mower Blade
Pro le for Sharpening illustration in Sharpen
Mower Blades instructions). Since sand and abra
sive ma terial can wear metal away in this area, the
blade should be replaced when metal thickness
has worn to 1/16 in. (1.6 mm) or less.
DANGER
When blades are operated over sandy
soil, and if blades are allowed to wear, a
“slot” may be worn into the wing tip of
blade. Eventually a piece of the blade
may break off creating a serious potential
for injury or damage.
● Check the blades for straightness by marking
blade tip position inside the deck housing and then
ro tating the opposite end of the blade to the same
po sition and comparing. If the difference in blade tip
track is more than 1/8 in. (3 mm), the blade is bent
and should be replaced.
● Inspect the blade surface, especially in formed
areas, for cracks. Replace the blade if any cracks
are found.