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MAINTENANCE
_
ARNING: TEMPERATUREOF MUFFLER AND NEARBY I
AREASMAY EXCEED150OF (65°C).AVOIDTHESE AREAS.
CHECK OIL LEVEL:
Check oil level every five (5) operating hours or each time engine
is used. See "2 CHECK OIL LEVEL" in "BEFORE STARTING" on
Page 1.
@
CHANGE
OIL:
Change oil after first two (2) operating hours and every 25
operating hours thereafter, more often if operated in extremely
dusty or dirty conditions.
Change oil while engine is still warm from recent running.
_IA.
DISCONNECT SPARK PLUG WIRE FROM SPARK PLUG 1
AND KEEP IT AWAY FROM SPARK PLUG,
|
B. Clean area around drain plug (see Figure 1).
C. Positionequipmentso engine oildrain plugis lowest pointon
engine,
D. Remove oil drain plug and oil fill plug to drain oil
E. Replace oil drain plug and tighten securely,
F. Fill oil sump with recommended oil. See "OIL & FUEL REC-
OMMENDATIONS" and =CHECK OIL LEVEL" on Page 1.
G. Replace oil fill plug and tighten securely.
H. Wipe up any spilled oil.
(_AIR
CLEANER
IMPORTANT:
NEVER RUN ENGINE WITHOUT COMPLETE
AiR CLEANER INSTALLED ON ENGINE.
A. TO SERVICE FILTER(S) (see Figure 4):
1. FOAM FILTER:
Clean and re-oil every 3 months or every 25 operating
hours. Clean and re-oil daily if used in extremely dusty or
dirty conditions.
a, Wash in water and detergent solution and squeeze
(don't twist) until all dirt is removed.
b. Rinse thoroughly in clear water.
c. Wrap in a clean cloth and squeeze (don't twist) until
completely dry.
d. Saturate with engine oil and squeeze (don't twist) to
distributeoil and remove excess oil.
2. PAPER FILTER:
DO NOT ATTEMPT TO CLEAN OR OIL FILTER.
Replace once a year or every t 00 operating hours,more
often if used in extremely dusty conditions.
Replacement filters are available at any Sears Roebuch
and Co. (or Sears Canada, Inc.) Service Center.
B. TO REMOVE AND INSTALL RLTER:
1. Remove wing nut and cover.
2. Slide foam filteroff paper filter..
3. Inspect filters for discolorationor dirtaccumulation. If
either is present, serviceper preceding"TO SERVICE
FILTER(S)" instructions.
4. Remove nut and paper filter (if service is necessary).
5. Clean topside of base and inside of cover thoroughly.
6. Install paper filter and nut. Tighten nut fingertightand
then turn it one (1) more complete turn.
7. Slide foam filter over paper filter,
8. Install cover and wing nut. Tighten wing nut.
Page 3
MAINTENANCE (Continued)
_WING
NUT
NUT
BASE--
Figure 4
(_ SPARK PLUG (see Figure5)=
This spark ignitionsystem meets al[ requirementsof the Cana-
dian Interference-Causing Equipment Regulations. This engine
complieswith all currentAustralian and New Zealand limitatiOns
regardingelectromagneticinterference. Check spark plugyeady
or every 100 operating hours.
A.
Clean area around spark plug.
B. Remove and inspect spark plug.
C.
Replace spark plugif electrodes are pitted, burned or por-
celain is cracked. For replacement use Champion RJ17LM
or equivalent.
NOTE: A resistorspark plug must be usedfor replacement.
D. Check electrode gap with wire feeler gauge and set gap at
.030 if necessary.
E.
Install spark plug, tighten securely.
ELECTRODES
.030 GAP
Figure5
(_ COOLING SYSTEM (see Figure1):
IMPORTANT: Frequentlyremovegrass clippings,dirtand debris
from cooling fins, air intake screen and levers and linkage. This
will help ensure adequate cooling and correct engine speed.
(_)'CHECK
ENGINE AND EQUIPMENT OFTEN FOR LOOSE]
_1=
NUTS, BOLTS AND AI"FACHMENTS, AND KEEP THESE_
I
ITEMS TIGHTENED.
ADJUSTMENTS
DO NOT MAKE UNNECESSARY ADJUSTMENTS. FACTORY SET
TINGS ARE SATISFACTORY FOR MOST APPLICATIONS AND
CONDITIONS. IF ADJUSTMENTS ARE NEEDED, PROCEED AS
FOLLOWS:
(_
CARBURETOR
(see Figure 6):
If you think your carburetor needs adjusting, see your nearest
SEARS, ROEBUCK AND CO. (OR SEARS CANADA, INC.)
SERVICE CENTER. Engine performanceshouldnotbe affected
at altitudes up to 7,000 feet. For operation at higher elevation,
contactyour nearest SEARS, ROEBUCK AND CO. (OR SEARS
CANADA, INC.) SERVICE CENTER.
18t-1202-11
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