Operator's Manual

Table Of Contents
Thefollowingexampleillustratestheprocessgivenaninstallationusingthemachineatan18%pitchon
levelground:
g218952
Figure45
1.18%pitch3.96cm(38inches)5.119cm(47inches)
2.53cm(21inches)4.114cm(45inches)6.10.6m(35ft)
Youinserttherst3m(10ft)ofdrillbit/pipeinto
thegroundwithnosteering.Theendofthedrillbit
is53cm(21inches)deep(Figure45).
Youbeginsteeringupforthenext3m(10ft),
pushingthepipesinatthemaximumpitchchange
of8%.Thisresultsinachangeofpitchfrom18%
atthebeginningofthe3m(10ft)to10%atthe
endofthe3m(10ft)foranaveragepitchof14%.
Giventhat,thedrillheadlowersanother43cm(17
inches)andisnow96cm(38inches)deep.
Continuingsteeringupforthenext3m(10ft)at
an8%pitchchange,yourpitchchangesfrom10%
to2%foranaveragepitchof6%.Giventhat,the
drillheadlowersanother18cm(7inches)andis
now114cm(45inches)deep.
Levelingthedrillheadfrom2%to0%takesless
than1.5m(5ft)moreforanaldepthof119cm
(47inches).Reachingthisnalpointtook3anda
half,3m(10ft)pipes.Soforthisexample,your
entrypointshouldbe10.6m(35ft)backfromthe
beginning-at-depthpointofyourinstallation.
Important:Youcanusetheinformationcontained
inthissectiontodetermineboththespaceneeded
tosteeruptotheexitpointifneededandalsoto
steeraroundobstacles.
MappingtheBorePath
Withtheinformationyougatheredpreviously,mapout
thepathofthebore,identifyingthefollowingsothat
youcanmarkthesitelater:
Entrypoint
Locationofthemachineandsupportingequipment
Beginningofbore-at-depth
Anyobstaclesthatyouneedtosteeraroundand
thelocationswhereyouneedtostartsteeringto
getaroundorunderthem
Anyutilitylinesyouwillneedtocross
Slopeandsoilchangesalongthepaththatwill
affectthebore
Endofthebore-at-depth
Exitlocationifitisdifferentthantheendofthebore
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