FormNo.3394-809RevB
12inBoomExtension
RT1200Trencher
ModelNo.25513
ModelNo.25513E
InstallationInstructions
WARNING
CALIFORNIA
Proposition65Warning
ThisproductcontainsachemicalorchemicalsknowntotheStateofCaliforniato
causecancer,birthdefects,orreproductiveharm.
WARNING
Whentheengineisoff,attachmentsintheraisedpositioncangraduallylower.Someonebelowthe
attachmentmaybepinnedorinjuredbytheattachmentasitlowers.
Alwayslowertheattachmenteachtimeyoushutoffthetractionunit.
Installation
1
PreparingtoInstalltheBoom
Extension
NoPartsRequired
PreparingtheMachine
1.Movethemachinetoalevelsurfacethatisbelowthe
liftingequipment.
2.Lowerallattachments.
3.Ensurethatthetiltfeatureofthemachineisleveland
thetilt-lockoutpinissecuretothechassis-lockout
bracket;refertotheOperator’sManualforthemachine.
PreparingaNewCenterTrencher
Note:Refertothefollowingsetupproceduresinthecenter
trencherOperator’ sManualfortheRT1200tractionunit.
1.PreparingtoInstalltheTrencher
2.InstallingtheSpeed-ShiftSwitch
3.InstallingtheTrencherAttachment
4.PreparingtheHydraulicMotor
5.ConnectingtheLiftCylinderHoses
6.InstallingtheHydraulicHoses
7.ConnectingtheWiringHarnesstotheHydraulicMotor
8.PurgingAirfromtheHydraulicMotorandLift
9.InstallingtheSprocket
10.InstallingtheAuger
Cylinder
4.Shutoffthemachine,settheparkingbrake,and
removethekeyfromthekeyswitch.
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OriginalInstructions(EN)
PrintedintheUSA
AllRightsReserved
*3394-809*B
2
3
RemovingtheDiggingChain
NoPartsRequired
Procedure
Machineswithaninstalledtrencher
Restraintbarweightfora
122cm(48inch)rockboom
Restraintbarweightfora
152cm(60inch)rockboom
Crumberweightfora122
cm(48inch)rockboom
Crumberweightfora152
cm(60inch)rockboom
1.Useliftingequipmentasneededtosupporttherestraint
barorcrumber.
2.Removethe4bolts(5/8x11inch)and4locknuts
(5/8inch)thatsecuretherestraintbarorcrumber,and
removethebar(Figure1).
11kg(24lb)
14kg(30lb)
60kg(125lb)
68kg(151lb)
RemovingtheBoom
NoPartsRequired
Procedure
Machineswithaninstalledtrencher
122cm(48inch)rockboom
weight
152cm(60inch)rockboom
weight
1.Starttheengineofthemachine;refertothetraction
unitOperator’sManual.
2.Usetheattachment-elevationswitchtomovethe
boom-mountttingofthetrenchertothehorizontal
position.
3.Attachtheliftingequipmenttotherockboom,and
supporttheboom(Figure2).
Important:Ensurethattheliftingequipmenthas
aliftcapacityofatleast293kg(645lb)forthe122
cm(48inch)rockboomor320kg(705lb)fora152
cm(60inch)rockboom.
212kg(466lb)
239kg(526lb)
Figure1
1.Locknut(5/8inch)
2.Bolt(5/8x1 1inch)4.Restraintbar(shown)
3.Removethediggingchain;refertotheRemovingthe
DiggingChainprocedureintheMaintenancesection
ofthecentertrencherOperator’sManualfortheRT1200
tractionunit.
3.Bar-mountingplates
Figure2
4.Removethe2hex-headbolts(3/4x2-1/2inch),2
washers,and2serrated-angenutsattheverticalholes
inthemountingplateandtheboom-mounttting
(Figure3).
2
Figure3
1.Locknut(3/4inch)6.Washer(1inch)
2.Serrated-angenut(3/4
inch)
3.Hex-headbolts(3/4x
2-1/2inch)
4.Washer(3/4inch)9.Hex-headbolts(1x2-1/2
5.Flangelocknut(1inch)
7.Boom-mounttting
(trencher)
8.Mountingplate(rock
boom)
inch)
5.Removethe2hex-headbolts(3/4x2-1/2inch),2
washers,and2locknutsatthehorizontalholesinthe
mountingplateandtheboom-mounttting(Figure3).
6.Removethe2horizontalbolts(1x2-1/2inch),
4washers(1inch),and2locknuts(1inch)atthe
horizontalholesinthemountingplateandthe
boom-mounttting(Figure3).
4
AssemblingtheBoom
ExtensiontotheRockBoom
Partsneededforthisprocedure:
1Boomextension
2
Bolt(1x2-1/2inch)
2
Washer(1inch)
2
Locknut(1inch)
4
Bolt(3/4x2-1/2inch)
4
Washer(3/4inch)
4
Locknut(3/4inch)
Procedure
Boom-extensionweight:81kg(179lb)
Note:Usethebolts,washers,andnutsfromthe
boom-extensionkittoassembletheboomextensiontothe
rockboom.
1.Aligntheholesintheboomextensionwiththeholes
intherockboomasshowninFigure4.
Note:Retaintheboltswashersandnutsforinstalling
theassembledrockboomandextension.
7.Movetheboomawayfromthetrenchertoprovide
clearanceforattachingtheboomextensiontothe
boom.
Figure4
1.Washer(3/4inch)—12
inchboomextensionkit
2.Bolt(3/4x2-1/2inch)—12
inchboomextensionkit
3.Locknut(3/4inch)—12
inchboomextensionkit
4.Mountingplate(boom
extension)
5.Boom-mounttting
(trencher)
2.Applythread-lockingcompoundtothethreadsofthe
4bolts(1x2-1/2inch)and2bolts(1x2-1/2inch).
3.Assemblethe2bolts(3/4x2-1/2inch),2washers
(3/4inch),and2locknuts(3/4inch)atthevertical
holesinthemountingplatefortheboomextension
andthemountingplatefortherockboom(Figure4).
4.Assemblethe2bolts(3/4x2-1/2inch),2washers
(3/4inch),and2locknuts(3/4inch)atthehorizontal
3
holesinthemountingplatefortheboomextension
andthemountingplatefortherockboom(Figure4).
5.Assemblethe2bolts(1x2-1/2inch),4washers(1
inch),and2locknuts(1inch)atthehorizontalholesin
themountingplatefortheboomextensionandthe
mountingplatefortherockboom(Figure4).
6.Tightentheboltsandlocknutsbyhand.
5
InstallingtheBoomExtension
andRockBoom
NoPartsRequired
Procedure
122cm(48inch)Rockboom
weightwithextension:
152cm(60inch)Rockboom
weightwithextension:
Note:Ifyouareinstallingacentertrencheralongwiththe
12-inchboomextension,usethebolts,washers,andnuts
fromthecenter-trencherkittoassemblethe12-inchboom
extensionandrockboomtothetrencher;refertotheoperator’s
manuallforthecentertrencher.Ifyouremovedtherock
boomfromanexistingtrencherinstallation,usethehardware
youremovedin3RemovingtheBoom(page2)toinstallthe
12-inchboomextensionandrockboom.
1.Starttheengineofthemachine;refertothetraction
unitOperator’sManual.
2.Ensurethattheboommountttingforthetrencheris
inthehorizontalposition(Figure5).
Note:Ifneeded,usetheattachment-elevationswitch
tomovethemounttting.
293kg(645lb)
320kg(705lb)
Figure5
1.Boom-mountingttingonthetrencher
3.Ensurethattheextensionandrockboomarelevel
(Figure6).
Important:Ensurethattheliftingequipmenthas
aliftcapacityofatleast293kg(645lb)forthe122
cm(48inch)rockboomor320kg(705lb)fora152
cm(60inch)rockboom.
Figure6
1.Boom-mountttingonthe
trencher
4.Positiontheboomextensionandrockboomsothat
themountingplateoftheextensionisushwiththe
boom-mountttingonthetrencher,andtheholesin
theplatearealignedwiththeholesinthetting(Figure
6).
2.Mountingplateonthe
boom
5.Applymedium-gradethread-lockingcompoundtothe
4hex-headbolts(3/4x2-1/2inch).
Note:Formachineswithanexistingtrencherinstalled,
refertosteps4and5of3RemovingtheBoom(page
2).
6.Install2hex-headbolts(3/4x2-1/2inch),washers,
andnutsintotheverticalholesinthemountingplate
andtheboom-mounttting(Figure7).
4