HART HTMS01 - Maintenance; General Maintenance; Brush Replacement

30 – English
WARNING:
Whenservicing,useonlyidenticalreplacementparts.
Useofanyotherpartscancreateahazardorcause
productdamage.
WARNING:
Alwaysweareyeprotectionwithsideshieldsmarked
to comply with ANSI Z87.1. Failure to do so could
resultinobjectsbeingthrownintoyoureyes,resulting
inpossibleseriousinjury.
WARNING:
Beforeperforminganyadjustment,makesurethetool
isunpluggedfromthepowersupply.Failuretoheed
thiswarningcouldresultinseriouspersonalinjury.
GENERAL MAINTENANCE
Avoidusing solvents whencleaningplastic parts. Most
plasticsaresusceptibletodamagefromvarioustypesof
commercialsolventsandmaybedamagedbytheiruse.Use
cleanclothstoremovedirt,dust,oil,grease,etc.
WARNING:
Donotatanytimeletbrakefluids,gasoline,petroleum-
basedproducts,penetratingoils,etc.,comeincontact
withplasticparts.Chemicalscandamage,weakenor
destroyplastic which can result in serious personal
injury.
Electrictoolsusedonfiberglassmaterial,wallboard,spack-
lingcompounds,orplasteraresubjecttoacceleratedwear
andpossibleprematurefailurebecausethefiberglasschips
andgrindingsarehighlyabrasivetobearings,brushes,com-
mutators,etc.Consequently,wedonotrecommendusing
thistoolforextended work on these typesofmaterials.
However,ifyoudoworkwithanyofthesematerials,itis
extremelyimportanttocleanthetoolusingcompressedair.
LUBRICATION
Allofthebearingsinthistoolarelubricatedwithasufficient
amountofhighgradelubricantforthelifeoftheunitunder
normaloperatingconditions.Therefore,nofurtherlubrica-
tionisrequired.
BRUSH REPLACEMENT
See Figure 35.
Thesawhasexternally accessiblebrushassembliesthat
shouldbeperiodicallycheckedforwear.
Proceed as follows when replacement is required:
 Unplugthesaw.
 Removebrushcapwithascrewdriver.Brushassemblyis
springloadedandwillpopoutwhenyouremovebrush
cap.
 Removebrushassembly.
 Checkforwear.Replacebothbrusheswheneitherhas
lessthan1/4in.lengthofcarbonremaining.Do not re-
placeonesidewithoutreplacingtheother.
 Reassemble using new brushassemblies.Makesure
curvatureofbrushmatchescurvatureofmotorandthat
brushmovesfreelyinbrushtube.
 Makesurebrushcapisorientedcorrectly(straight)and
replace.
 Tightenbrushcapsecurely.Do notovertighten.
BRUSH
CAP
BRUSH
CAP
BRUSH
ASSEMBLY
BRUSH
ASSEMBLY
MAINTENANCE
FIG. 35