
T20K
GENERAL MAINTENANCE
• Goodmaintenanceisyourresponsibility.Poormaintenanceisaninvitationtotrouble.
• Alwaysusepropertoolsorequipmentforthejobathand.
• Useextremecautionwhenmakingadjustments.
• Neveruseyourhandstolocateahydraulicleakonattachments.Useasmallpieceofcardboardorwood.Hydraulicuid
escapingunderpressurecanpenetratetheskin.
• Hydraulicuidescapingunderpressurecanpenetrateskinandcauseinjury.
• Fluidaccidentallyinjectedintotheskinmustbesurgicallyremovedwithinafewhoursbyadoctorfamiliarwiththisform
ofinjuryorgangrenemayresult.
• Whendisconnectinghydrauliclines,shutoffhydraulicsupplyandrelieveallhydraulicpressure.
• Cleanhydraulicoildailyforcontamination.Ifcontaminationispresent,determinethesourceandcorrecttheproblem.
• Whenreplacingboltsrefertothismanual.
• Cleantheexterioroftheunitwithamilddetergentandwatertoremoveanydebrisandgrime.
• Paintallscratchedorbaremetalsurfaces.
• Checkandtightenallbolts,nuts,andscrews.
• Repairorreplaceanycuttingheadcomponentsthataredamagedorworn.
• Checkthegearboxforsufcientamountofoil.
• CheckthePRO-DIG™AugerDriveoutputshaftforbends,cracks,breaks,orwear.Replaceifanyoftheseconditionsappear.
• Wherereplacementpartsarenecessaryforperiodicmaintenanceandservicing,genuinefactoryreplacementpartsmust
beusedtorestoreyouunittooriginalspecications.PRO-DIG™willnotclaimresponsibilityforuseofunapprovedpartsor
accessoriesandotherdamagesasaresultoftheiruse.
• Ifequipmenthasbeenalteredinanywayfromitoriginaldesign,PRO-DIG™doesnotacceptanyliabilityforinjuryorwarranty.
CHECKING AND CHANGING THE GEAR OIL
e Planetary gearbox used on your PRO-DIG™Drive Head uses a gear oil to keep the internal gears lubricated.
To check and or replace the oil, follow these simple steps.
CHECKING THE GEAR OIL:
1. MakesurethePRO-DIG™AugerDriveunitisinanupright
positionwhencheckingtheoil.
2. Slowlyloosentheoilll-drainpluglocatedontheunder
sideofthegearbox.Asyoureachtheendofthethreadson
theplug,oilshouldstarttocomeout.
3. Ifyouseeoilstartingtopouroutoftheport,quicklyretighten
theplug.Thisisanindicationthattheoillevelisadequate,but
inordertocorrectlymeasuretheamountofoil,thegearbox
shouldbedrainedandthecorrectamountofoilreplenished.
See“ChangingGearOil”sectionforoilcapacity.
CHANGING THE GEAR OIL:
1. PositionthePRO-DIG™AugerDriveunitinapositionin
whichtheoilcanowfreelyfromthegearboxoncethe
plugisremoved.
2. Placeadrainpanunderthedrainportthatwillholdat
leastonegallonofoil.
3.
Removethedrainplugandallowtheoiltocompletelydrainout.
4. Positionthegearboxforllingbyorientatingtheunitsothat
thesameportusedfordrainingcannowbeusedtoll.
5. Fillthegearboxwith0.75Gallons/2.84Litersofgearoil.
Seeoilspecicationsbelow.
LUBRICATION RECOMMENDATIONS:
Mobil Delvac Synthetic Gear Oil 75W-90
Density@15°C 0.859 ViscosityIndex: 140
Viscosity@40°C 120 FlashPoint°C: 205
Viscosity@100°C15.9 PourPoint°C: -48
LUBRICATION AND MAINTENANCE
Theoilshouldbechangedaftertherst50hrs.ofuseandat
500hr.intervalsthereafter.Geardrivesinaugerdrivesrequire
GL-5gradeEP80/90gearoilforlubrication.PRO-DIG™recom-
mendsthattheunitbepartiallydisassembledtoinspectgears
andbearingsat1000hr.intervals.
MAINTENANCE
Belowyouwillndsomegeneralmaintenanceinstructions.Forfurtherinformationcontactyourauthorizedservicedealer.
• Cleantheexterioroftheunitwithamilddetergentandwatertoremoveanydebrisandgrime.
• Checkandtightenallbolts,nutsandscrews.
• Repairorreplaceanycuttingheadcomponentsthataredamagedorworn.
• Cleantheexteriorandsurroundingareanearthehydraulicmotor.
• Paintallscratchedorbaremetalsurfaces.
TROUBLESHOOTING
IntheeventyourPRO-DIG™AugerDriveunitmalfunctionsordoesnotappeartohaveenoughspeedorpower,pleasereferto
thesectionbelowtoidentifythecauseoftheproblemandpossibleremedy.Iftheproblempersists,contactyourAuthorized
servicedealerforassistance.
SLOW SPEED RPM OR INSUFFICIENT DIGGING POWER:
• Lowoilow.
Checkparentmachinespecications.
• PRO-DIG™AugerDriveistoolargeformachine.
ContactyourAuthorizedServiceDealer.
• Checkaugerandteethforexcessivewear.
Replacewornaugercomponents.
NO OUTPUT ROTATION:
• Quickreleasecouplersnotengaged.
Checkconnections.
• Quickreleasecouplerisfaulty.
Replacefaultycoupler.
• Hydraulicoiltankislow.
Filloiltanktomaximumlevel.
• Planetarygearfailure.
ContactyourAuthorizedServiceDealer.
• Machineorhydraulicpumpfailure.
Refertoparentmachinemanual.
BAIL HOUSING LEAKING OIL:
• Hose(s)oftting(s)leaking.
Tightenorreplace.
• MotorO-ringfailure.
ReplacedamagedO-ring.
OUTPUT SHAFT LEAKING OIL:
• Oilsealfailure.
ContactyourAuthorizedServiceDealer.
• Hydraulicmotorfailure.
ContactyourAuthorizedServiceDealer.
AUGER BIT WILL NOT ENGAGE OR DIG:
• Augerbigiswornordamaged.
Replacecuttingheadorentireaugerbit.
NO TORQUE:
• Oilpressureistoolow.
ContactyourAuthorizedServiceDealer.
• Driveunitistoosmallforparentmachine.
ContactyourAuthorizedServiceDealer.
• Hydraulicsystemisoverheating.
Seethe“OilOverheating”sectionbelow.
HYDRAULIC OIL OVERHEATING:
• Oilpressureistoolow.
Setreliefvalvetomachinespecications.
• Hydrauliclineisrestricted.
Inspectandrepair.
• Augercontinuallystalling.
Limitdownpressurelevel.
• Hydraulicoiltankislow.
Filloiltanktomaximumlevel.
• Insufcientoilcapacity.
Checkoilcooler.
• Parentmachineistoosmall.
CouplePRO-DIG
™
AugerDrivetolargermachine.
WWW.PRODIGUSA.COM 785.856.2661
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