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Craftsman 675 Series Operator's Manual page 61

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FLEXIBLE PUMP COUPLER
The flexible pumpcoupleris a nylon"spider"insert,locatedbetween
the pumpand theengine shaft.Overtime,the couplerwill hardenand
deteriorate.
Replacethecouplerif you detectvibrationor noisecomingfrom the
areabetweenthe engineand the pump.If thecouplerfails completely,
youwill experiencea loss of power.
IMPORTANT: N everhit the engineshaft in any manner,as a blow will
causepermanentdamageto the engine.
1. Removethreenuts that securethe pumpto thecouplingshield.
Twonuts are at the bottomcornersand one is in the top center.
See Figure5-2.
2. Removethepump.
3. Rotatethe engineby slowlypullingstarterhandleuntil engine
couplinghalf set screwis visible.Loosenset screwusingallen
wrenchand slidecouplinghalfoff engineshaft.
4. Loosenset screwon pumpcouplinghalfand removecouplinghalf.
5. Slide newenginecouplinghalf ontothe engineshaft untiltheend of
the shaftis flush with the innerportionof the couplinghalf. (There
mustbe space betweenthe end of the enginesupportbracketand
couplinghalf). Tightenset screw.
6. Installpumpcouplinghalfand key on pumpshaft. Rotatecoupling
half untilset screwfacesopeningin shield. Do nottightenset
screw.
7. Installnylon"spider"onto enginecouplinghalf.
8. Align pumpcouplinghalfwith nylon"spider"by rotatingengine
usingstarterhandle.Slide couplinghalf intoplacewhileguiding
threemountingbolts throughholesin pumpsupportbracket.
9. Securewith nutsremovedearlier.
10.Set.010"to.060"clearance/gapbetweenthe nylon"spider"and
the enginecouplinghalf byslidinga feelergaugeor matchbook
coverbetweenthe nylon"spider"and the enginecouplinghalfand
movingpumpcouplinghalfas needed.Securepumpcouplinghalf
with set screw.See Figure5-2.
//
/
/
Screw
_,,
,J
Figure 5-2
TIRES
Seesidewallof tire for recommended pressure.Underany circum-
stancesdo notexceed manufacturer's recommended psi. Maintain
equal pressureon all tires.
Excessivepressurewhenseatingbeadsmaycause tire/rimassembl_,
to burst with forcesufficientto causeseriousinjury. Referto sidewall
of tire for recommended pressure.
NOTE:Makecertain properclearance/gapis obtainedbeforetighten-
ing set screw.
13

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