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Craftsman 917.374821 - Handle and Engine Adjustments; Adjusting the Handle Height; Engine Speed and Carburetor Service

Craftsman 917.374821
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4. Installnewdrive belt into idlerarm
assembly,thenaroundthe drive pulley.
Be surebelt is insideof belt keepers.
5. Reattachidlerarm assemblywith hex
nut previouslyremoved.
6. Turnlawn moweron itsside.Make
sureairfilter andcarburetorare up.
7. Reattachdebris shieldto housingwith
tab ofdebris shieldin housinghole.
8. Positionbladeonthe bladeadapter
aligningthe two (2) holesin the blade
with the raisedlugson the adapter.
9. Be surethe trailingedgeof blade(op-
positesharp edge)is up towardthe
engineas shown.
10.Installthe bladeboltwiththe lock
washer andhardenedwasher into
bladeadapterand crankshaft.
11.Useblockof woodbetweenbladeand
lawnmower housingand tighten the
bladebolt,turningclockwise.
The recommendedtighteningtorqueis
35-40ft. Ibs.
IMPORTANT:Bladeboltis heattreated.
If bolt needsreplacing,replaceonly with
approvedboltshownin the RepairParts
sectionofthis manual.
12.Returnmowerto uprightposition.
13.Reattachdrivecablespring to the idler
arm assembly,thenreattachdrive
cableto anchor.
14.Reattachdrivecoverwith screwsprevi-
ouslyremoved.
15.Connectspark plugwire to sparkplug.
TO ADJUST HANDLE
The handle on your lawn mower has three
(3) height positions - adjust to the height
that suits you.
Squeeze the bottom ends of lower
handle towards each other until the pin
in handle can be inserted into one of the
three height adjustment holes.
SQ
bracket
pin
-High
Medium
Low
ENGINE
ENGINE SPEED
Your engine speed has been factory set. Do
not attempt to increase engine speed or it
may result in personal injury. If you believe
that engine is running too fast or too slow,
take your mower to a Sears or other qualified
service center for repair and adjustment.
CARBURETOR
Your carburetor has a non-adjustable fixed
main jet for mixture control. If your engine
does not operate properly due to suspected
carburetor problems, take your lawn mower
to a Sears or other qualified service center
for repair and/or adjustment.
IMPORTANT: Never tamperwith the engine
governor, which is factory set for proper en-
gine speed. Overspeeding the engine above
the factory high speed setting can be danger-
ous. If you think the engine-governed high
speed needs adjusting, contact a Sears or
other qualified service center, which has
proper equipment and experience to make
any necessary adjustments.
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