Operator's Manual

5.Whenthediggingchainhasclearedthedrivesprocket,
movethetrencherdrivecontroltotheNEUTRAL
position,turnthemachineoff,andremovethekey
(Figure43).
6.Wraptheliftingstraparoundthediggingchainat
theidlerwheel,andattachthestraptothelifting
equipment(Figure43).
7.Raisetheliftingequipmentandremovethedigging
chainfromtheboom(Figure43).
InstallingtheDiggingChain
PreparingtoInstalltheDiggingChain
1.Startthemachineandmovetheboomtothefullup
position.
2.Settheparkingbrake,turnthemachineoff,and
removethekey.
3.Removethebleedplugfromthechaintensionerofthe
boom;refertoCheckingtheChainTension(page18).
4.Movetheidlerwheeloftheboomforwardanddown.
5.Installthebleedcap.
6.Startthemachine,movetheboomtothehorizontal
position,turnthemachineoff,andremovethekey.
7.Laythediggingchainonthegroundinastraightline,
belowtheliftingequipmentsuchasahoist,andwith
thecuttingfaceoftheteethpointingtowardthepath
whereyouwillmovethemachine(forward)toposition
itoverthediggingchain(Figure44).
Figure44
1.Liftingstrap2.Diggingchain(teethdown
andforward)
8.Attheforwardendofthechain,loopa3.65m(12
foot)liftingstrapwithaliftingcapacityof181.4kg
(400lb)aroundthechainatthediggingtoothofthe
thirdorfourthlinkofthechain(Figure44).
9.Startthemachineandpositionitwithtrencheroverthe
diggingchainandwiththeliftingstrapforwardofthe
drivesprocketofthetrencher(Figure44).
Note:Whenpositionedcorrectly,theboomofthe
trencherisalignedwiththediggingchain.
10.Turnthemachineoffandremovethekey.
AligningtheDiggingChain
Thisprocedurerequires2peopletoalignthediggingchainto
themachine.
1.Routetheendsoftheliftingstrapforwardofthe
sprockethub,oneithersideofthedrivesprocket,and
uppastthedirtdeector(Figure45).
Note:Movethedirtdeectorupandawayfromthe
liftingstrap.
Figure45
1.Liftingstrap
4.Drivesprocket
2.Dirtdeector
5.Upperwearstrip
3.Diggingchain
2.Connecttheendsoftheliftingstraptothelifting
equipment,andraisetheendofthechainuntilthe
drivepinsengagethedrivesprocket(Figure45).
3.Startthemachineandmovethetrencherdrivecontrol
totheslowforwardchainspeedposition.
Important:Ifthechainisnotalignedorengaged
withthedrivesprocket,turnthemachineoff,
removethekey,andalignthechaintothedrive
sprocket.
Note:Themachinedrivesthechainontotheupper
wearstripoftheboom.
Note:Maintaintensiononthestrapuntiltheendof
thechainisontheupperwearstrip.
4.Lowertheliftingstrapasthechainmovesaroundthe
sprocketandintopositionontheupperwearstrip.
5.MovethetrencherdrivecontroltotheNEUTRAL
positionwhentheendofthechainispositionedontop
oftheidlerwheeloftheboom(Figure46).
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