Operator's Manual

Table Of Contents
RefertoPreparingtheJobSiteandthe
Machine(page44)forinstructionsonpreparing
thejobsiteandthemachine.
4.Drillthebore.
Drilltheborein3stages:
A.Entry
Intheentryphaseofthebore,pushthedrill
bitandheadintothegroundatanangle
ofupto16degrees.Afterpushinginone
ormorepipes,begindrillingdownand
forwarduntilyoureachthedesireddepthor
depth-gaugehole(ifused).
B.HorizontalReach
Afterreachingthedesireddepth,pushthe
bitforward,steeringthebittoahorizontal
depth.Thesondeemitsaradiosignal
fromthesondehousing,allowingthe
locating-equipmentoperatoronthesurface
totrackthelocationanddepthofthehead
usingthesondereceiverasyoudrilland
steeritalongaplannedpath..
C.Exit
Onceyouhaveattainedtheplanned
horizontalreach,steertheheadupatan
angle,similartoyourentryangle,bringing
thebitintotheexitholeortrench.
RefertoDrillingtheBore(page57).
5.Backreamtheboreandpullbackthecabling
orpipe.
Afterenteringtheexithole,acrewmember
detachesthedrillbitandsondehousingfromthe
drillpipe.Attachareamingbitandtheendof
thecableorpipetobepulledthroughthebore.
Thereamingbitisdesignedtoenlargethebore
asyoupullitback.Pumpdrillinguidthrough
thepipetothereamingbitasyoupullthecable
orpipebackthroughtheboretolubricatethe
reamerandallowthecableorpipetoslideeasily
throughthebore.Continuepullingthepipeback
untilthereamerreachesthedepth-gaugehole
orexitsattheentrypoint.Removethereamer
andproductfromthedrillpipe,pullingthepipe
therestofthewaybacktothemachine.
RefertoBackreamingandPullback(page60)
forinstructionsonbackreamingandpulling
cableorpipe.
6.Finishtheboreandleavethejobsite.
Aftercompletingtheoperation,disconnectand
cleanthemachine,andloaditonthetrailer;
refertoFinishingtheJob(page63).
GatheringSiteInformation
PlanningtheInitialPath
Beforedrilling,planthepathyouwillboreandprepare
asfollows:
Createabasicplanforthebore,mappingoutthe
proposedpath.
Noteanyobstacleswhichmayaffectthebore
suchaslargetrees,bodiesofwater,buildings,
etc.
Planthepathoftheboretoavoidasmany
obstaclesaspossible.
Determinethedepthofanybodiesofwaterto
becrossedtoensurethatyoucangetdeep
enoughtogounderthem.
Determinethedepthyouneedtoinstallthe
materialatandtheminimumbendradiusofboth
thedrillpipeandthematerialbeinginstalled.This
willaffecthowlongtheboreneedstobeand
atwhatangleyoucanenterandexit;referto
PlanningtheBorePath(page39).
Havetheareaoftheborepathmarkedforutility
lines(intheUScall811).Ensurethatalllinesare
markedonyourblueprints/boreplanaswell.
Contactthelocalauthoritiestoarrangeforany
permitsandtrafccontrolthatyouwillneedto
conductthejob.
InspectingtheProposedJobSite
Physicallyinspectthesiteasfollows:
Notetheterrain,slopes,valleys,hills,andany
featuresnotplannedforpreviously.
Determinethedegreeofslopeatboththe
proposedentrypointandexitpoint.
Determinewhatthesoiltypesareintheareaand,
ifpossible,andwhattheyareatthedepthyou
willbeboring.Youmayneedtodigtestholesat
intervalsalongtheborepathtofullydeterminethis.
Walktheareaoftheborepathlookingfor
anypossibleunmarkedobstructions.Lookfor
manholes,pedestals,oldfoundations,etc.
Identifyallhazardsofwhichyouwillbepassing
within3m(10ft).
Commonhazardsincludethefollowing:
Gaslines
Electricalpowerlines
36