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MAINTENANCE/SERVICE
Gasoline Engine: Air
Intake
System
AIR
CLEANER
IMPORTANT: Do not run engine with air
cleaner
disconnected or disassembled.
The air cleaner is equipped with a
vacuator
valve
which removes dust continuously from the air
cleaner housing.
Check
~
that system is functioning proper1y:
1.
Remove air cleaner end cap
(A).
2. Check for
dust
inside
the
canister.
3.
If
dust
or debris is present, clean canister and
check for the source of the contamination.
Possibilities
are:
a)
Obstruction
in vacuator valve (B). Clean or
replace
if necessary.
b) Loose connection at any air-intake hose
clamp. Tighten hose clamp.
4.
Replace air cleaner end cap.
ALTER ELEMENTS
-
CLEANING AND INSPECTION
The
air cleaner is equipped with a
restriction
gauge (A) which
signals red
when the primary filter
element requires cleaning. Check restriction gauge
~
with
engine
running at full speed. Never clean
filter element unless restriction gauge signals red.
Excessive cleaning will
shorten
element life. After
cleaning, re-set restriction gauge by pushing
button
on top of
gauge.
IMPORTANT:
The
air
cleaner is a
dual element
type.
Clean
the
primary (outer)
element only.
Do
not
attempt
to clean the secondary (inner)
element.
If
there
is
visible dirt
on the secondary
element,
replace
both primary and
secondary
elements.
See "Filter Elements
- Replacement"
for
normal change interval.
To clean air filter element:
1.
Remove element
from air cleaner canister.
2. Clean inside of canister and cover with a cloth.
3. Inspect element as follows:
-
Hold a bright light (8) inside element and
check carefully for holes. Discard any element
which shows the slightest hole.
-
Be sure outer screen
(C)
is not dented.
Vibration would quickly wear a hole in the filter.
-
Be sure
filter
gasket (D)
is
in good condition.
If gasket
is
damaged
or
missing,
replace
element.
4. Pat sides of element gently to loosen dirt. Do
not tap element against a hard
surface.
59
AIR
CLEANER
RESTRICTION GAUGE
INSPECT ELEMENT
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