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PRODUCT SPECIFICATIONS
MODEL NUMBER 917.388153
SERIAL NUMBER
DATE OF PURCHASE
HORSEPOWER: 5.0
DISPLACEMENT: 11.5 CU. IN.
GASOLINE CAPACITY/TYPE: 1.5 QUARTS
UNLEADED REGULAR
OIL TYPE (API-SF/SG/SH): SAE 30 (ABOVE 32°F)
SAE 5W-30 (BELOW 32°F)
OIL CAPACITY: 20 OZS.
SPARK PLUG(GAP: .030") CHAMPION RJ19LM
VALVECLEARANCE: INTAKE: .004" - .008"
EXHAUST: .004" - .008"
SOLID STATE IGNITION
AIR GAP: .0125 IN.
BLADE BOLT TORQUE: 35-40 FT. LBS.
• The model and serial numbers will be found on a decal attached to the rear of the
lawn mower housing.Record both serial number and date of purchase in space
provided above.
LAWNMOWER
Always observesafety ruleswhen performing
any maintenance.
TIRES
• Keep tiresfree ofgasoline, oil,or insect
controlchemicalswhichcan harm rubber.
* Avoidstumps, stones,deep ruts,sharp
objects and other hazards that may cause
tire damage.
BLADE CARE
Forbest results,mower blade mustbe kept
sharp. Replace bentor damaged blades.
TO REMOVE BLADE
• Disconnect spark plugwire from spark plug
and place wirewhere itcannot come in
contactwith sparkplug.
• Turn lawn mower on itsside. Make sureair
fitterand carburetorare up.
• Use a woodblock between blade and
mower housingto prevent bladefrom
turningwhen removing blade bolt.
• Protectyour handswith gloves and/or wrap
blade with heavy cloth.
• Remove blade boltbyturningcounter-
dock'wise.Use a 9/16" box or open-end
wrench.
• Remove blade and attaching hardware
(bolt,lock washer and hardened washer).
NOTE- Remove the blade adapter and
checkthe key inside hubof blade adapter.
The key must be in good conditionto work
properly.Replace adapter ifdamaged.
TO REPLACE BLADE
• Positionthe blade adapter onthe engine
crankshaft.Be sure key in adapter and
keyway in crankshaftare aligned.
• Positionblade onthe blade adapter
aligningthe two (2) holes inthe blade with
the raised lugsonthe adapter.
• Be sure the trailingedge isuptoward the
engine.
• Installthe blade boltwith the lockwasher
and hardened washer into blade adapter
and crankshaft.
• Use blockofwood between blade and
lawnmower housingand tightenthe blade
bolt,turningclockwise.
• The recommended tighteningtorque ls35-
40 ft. Ibs.
IMPORTANT."Blade boltisgrade8 heat
treated.
11
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