Craftsman 247.77641 Operator's Manual page 21

Beforeperforming anytype of maintenance/service, disengageall controlsand stopthe engine.Wait [
untilall movingparts havecome to a completestop.Disconnectspark plugwire and groundit againstthe [
engineto preventunintendedstarting.Alwayswear safetyglassesduringoperationor whileperformingawl
[adjustmentsor repars.
This section addresses minor service issues. To locate the nearest Sears Service Center or to schedule service, simply contact Sears
at 1-800-4-MY-HOME®.
Will notsplit logs
Slowcylindershaftspeed
whileextendingand retracting.
Engineruns butwoodwill not
split or wood splitstoo slowly
Enginewill notturn or stalls
under lowload conditions
Wedge continues to move forward
whencontrol handle released
Controlhandledoes notreturn
to neutralwhen releasedfrom
forwardposition
Leakingpumpshaft seal
1. Reservoirfluid levellow.
1. Gear sectionsdamaged.
2. Excessivepumpinletvacuum.
3. Slowenginespeed.
4. Damagedreliefvalve.
5. incorrectoil level.
6. Contaminated oil.
7. Directional v alve leakinginternally.
8. [nternallydamaged cylinder.
1. Smallgear sectiondamaged.
2. Pumpcheckvalve leaking.
3. Excessivepumpinletvacuum.
4. incorrectoil level.
5. Contaminated oil.
6. Directional v alve leakinginternally.
7. Overloadedcylinder.
8. [nternallydamaged cylinder.
1. Engine/pump misalignment.
2. Frozenor seizedpump.
3. Lowhorsepower/weak engine.
4. Hydrauliclines blocked.
5. Blockeddirectionalvalve.
1. DamagedControlValve
1. Hydraulicfluidtoo cold.
2. Hydraulicfluidtoo thick.
3. Hydraulicfluid contaminated.
4. Damagedcontrolvalve.
1. Brokendriveshaft.
2. Engine/pump misalignment.
3. Gear sectionsdamaged.
4. Poorlypositionedshaftseal.
5. Pluggedoil breather.
1. Refilltransmissionfluid.
1. Returnunitto Searsservicecenter.
2. Makecertainpump inlethosesare clearand
unblocked.Use short,large diameterinlet hoses.
3. Returnunitto Searsservicecenter.
4. Returnunitto Searsservicecenter.
5. Checkoil level. Refillif necessary.
6. Drainoil,clean reservoir,and refill.
7. Returnunitto Searsservicecenter.
8. Returnunitto Searsservicecenter.
1. Returnunitto Searsservicecenter.
2. Returnunitto Searsservicecenter.
3. Makecertainpump inlethosesare clearand
unblocked.Use short,large diameterinlet hoses.
4. Checkoil level. Refillif necessary.
5. Drainoil,clean reservoir,and refill.
6. Returnunitto Searsservicecenter.
7. Do notattemptto split woodagainstthe grain.
8. Returnunitto Searsservicecenter.
1. Correctalignmentas necessary.
2. Returnunitto Searsservicecenter.
3. Returnunitto Searsservicecenter.
4. Flushand cleanhydraulicsystem.
5. Returnunitto Searsservicecenter
1. Returnunitto Searsservicecenter.
1. Warmup the engine.
2. Replacehydraulicfluid.
3. Replacehydraulicfluid.
4. Returnunitto Searsservicecenter.
1. Returnunitto Searsservicecenter.
2. Correctalignmentas necessary.
3. Returnunitto Searsservicecenter.
4. Returnunitto Searsservicecenter.
5. Makecertain reservoiris properlyvented.
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