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Craftsman 917.389990 Owner's Manual page 9

4.0 horsepower 20" rear discharge rotary lawn mower

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MA,NTENA.CE
SCHEDULE
AS YOU COMPLETE
REGULAR SERVICE
/_0_*(_,_7S
E R ViCE
DATES
Check for Loose Fasteners
_
Clean!Inspect
Grass Catcher
(If Equipped)
_
_#_
M
Clean Lawn Mower
fi/
_,/
O
Clean Under Drive Cover
(Power-Propelled
Mowers)
_/
Check drive belt/pulleys
RE {Power-Propelled Mowers)
II/
Check/SharperVReplace Blade
_/
Lubrication Chart
_
Clean Battery/Rechar_
Electric Start Mowers
11/
V'4
E Check Engine Oil Level
N
Change Engine Oil
V_1.2
G
CleanAir Filter
_
=
I
Inspect Muffler
!#/
N
Clean or Replace Spark Plug
V _
E
Replace Air Filter Paper Cartridge
1,,/2
1
-
Ch_ltge tllo_e often when opecatingunder a heavy _oadot in high Rmbienl temperatures,
2. Sen/ice
more often when
operating
In dlrt'/or
dosly conditiolls.
3 - Replace blades mote often when rcowingin sandy soil.
4 - Charge 48 hoursat end of season,
GENERAL RECOMMENDATIONS
The warranty on this lawn mower does
not cover items that have been subjected
to operator abuse or negligence. To
receive full value from the warranty,
operator must maintain mower as
instructed in this manual.
Some adjustments will need to be made
periodically to properly maintain your
unit.
All adjustments in the Service and
Adjustments section of this manual
should be checked at least once each
season.
• Once a year, replace the spark plug,
clean or replace air filter element and
check blade for wear. A new spark
plug and clean/new air filter element
assure proper air-fuel mixture and help
your engine run better and last longer.
• Follow the maintenance schedule in
this manual.
LUBRICATION
CHART
(_ Wheel adjuster
BEFORE
EACH USE
1. Check engine oil level
2. Check for loose fasteners.
LUBRICATION
Keep unit well lubricated (See "LUBRI-
CATION CHART').
gine oil
Rear
(_) Handle bracket mounting pins
door hinge
(_) Spray lubricant
_) See "ENGINE" in Maintenance section.
9
IMPORTANT:
Do not oil or grease
plastic wheel bearings. Viscous
lubricants will attract dust and dirt that
will shorten the life of the self-lubricat-
ing bearings. If you feel they must be
lubricated, use only a dry, powdered
graphite type lubricant sparingly.

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