NUTOOL NBD350 - Page 29

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Attaching the adjustable eye guard
WARNING: NEVER ATTEMPT TO USE THE MACHINE
WITHOUTTHEEYEGUARD
Slackenthescrewonthesideoftheguard.Positionoverthe
spindlecollarandsecurescrew.Theeyeguardisspringloaded
and on a hinge which allows the guard to be moved upwards to
exposethechuckfordrillinstallationandremoval.Alwaysreturn
theguardtocoverrotatingparts.Theeyeguardisadjustable
tovaryingdepthstogivemoreprotection.Simplyunscrewthe
wing nuts and the two piece guard will extend vertically up or
down.
FITTING THE 3 JAW CHUCK (PICS. 14 & 15)
Industry uses the “Morse taper” system to fit drill bits, chucks
and adaptor sleeves. The Taper system comprises of taper
shank(Pic.14)(14.1)andtang(Pic.14)(14.2).
NOTE: For the “Morse Taper” system to work correctly the
internal and external tapers must not be damaged and must be
keptthoroughlyclean.
Clean the protective film from the chuck shank and the drive
spindleinternaltaperwithwhitespirits.Insertthechuckshank
intothedrivespindleinternaltaper(Pic.14).
NBD350: This machine is supplied with a Morse taper stub
shaftfittedintothespindle(Pic.14B)(14B.1).Tofitthechuck:
clean the protective film from the chuck internal taper and the
stubshaftexternaltaperwithwhitespirits.Placethechuckonto
theexposedstubshaft(Pic.14B)(14B.2).
Placeapieceofwoodontothetable.Usingthefeedhandles
lowerthechuckontothewood(Pic.15).Gentlyapplypressure
to engage the taper and then let the spindle raise to its upper
position.
Thedrillis now fully assembled andsecuredinposition.The
following adjustments and setting up instruction must be carried
outbeforeconnectingthemachinetothemainssupply.
ADJUSTMENT AND SETTING UP INSTRUCTIONS
ADJUSTING THE TABLE HEIGHT (PICS. 16 & 17)
To adjust the table height, slacken the clamping lever at the rear
ofthetablesupportassembly(Pic.16).
Locate the winding handle and raise table up or down to desired
height(Pic.17).Whenthedesiredheighthasbeenachieved,do
notforgettore-securetheclampinglever.
TILTING THE TABLE ± 45° (PIC. 18)
Locatethesecuringboltunderneaththetable(Pic.18)Witha
suitablesocketloosenthebolt.Onthetablesupportassembly
castingthereisagraduated0-45°scale(Pic.19C)(19C.1).Set
thetabletotherequiredangleandre-tightenthebolt.
NOTE: The graduated scale is for guidance only we recommend
the use of an engineers protractor when setting any angles
WORK TABLE SWING 360° (PICS. 19 - 19B)
The work table can swing through 180° to the rear of the
machine in each direction 360°. This will allow larger work
piecestobeaccommodatedonthebaseplate.Simplyunclamp
thetable(Pic.19-19B)andmanoeuvreeitherclockwiseoranti-
clockwisetotherearofthemachine.
QUILL SPRING ADJUSTMENT (PIC. 20)
WARNING: Thequillspringisunderextremetension.
The quill spring is located in a chrome housing on the opposite
side of the feed shaft boss and returns the spindle to its
uppermostposition.Adjustmentisnormallyonlyrequiredafter
many hours of use when it fails to return the spindle to its
uppermostposition.Withthespindleinitsuppermostpositionit
can be seen that the chrome cover has a total of three notches
(Pic.20)(20.2)cutintotheedgethatalignwiththecastbodyof
theheadstock.Oneofthesenotchesislocatedontoacastpeg
(Pic.20)(20.3)thatispartofthemaincasting.(Pic.20).
WARNING: Before slackening the lock nuts ensure that the
chromehousingisheldsecurelywithasuitablegriporwrench.
Ifnotheldsecurelythequillspringwillfullyuncoil.
Carefullyslackenthelocknuts(Pic.20)(20.1)onlyenoughto
allow the chrome housing to be pulled out far enough to just
clear the cast peg (Pic. 20) (20.3) while holding the chrome
coverwithsuitablegrips.Thespringisstillundertensionand
will try to uncoil as soon as it is released so be sure to resist the
torque.Assoonasthechromehousingisabletoclearthecast
peg,turnthechromehousinginananti-clockwisedirectionuntil
thenextnotchlocatesontothepeg.Whileholdingthechrome
housinginthispositiontightenthelocknuts.Donotovertighten
otherwiseyouwilldamagethechromecover.
SPINDLE PLAY (PIC. 21)
Locatethespindleplayadjustmentsetscrew(Pic.21).Loosen
thelocknutandfingertightenthegrubscrew.Holdthegrub
screwintopositionwithascrewdriverandtightenthelocknut.
USING A MACHINE VICE (PIC. 22)
WARNING: The drill should never be used without the work
piece being securely held in a machine vice or clamped directly
tothedrilltable.Thedrilltableisdesignedtoacceptavariety
of machine vice which can be fastened directly to the drill
table;Pic.22givesanindicationastothetypeofmachinevice
required.
Alwayssecurethevicetothetablewithbolts,washersandnuts.
If the drill jams into the work piece an unsecured machine vice
will spin out of control causing the drill to snap and possibly
injuretheoperator.
USING THE 3 JAW CHUCK (PIC. 23)
Selectthedrillbitrequiredandfromthedrillspeedtable(Pag.31
-Chart1,pag.15)selectthecorrectspeed.Openthejawsand
insertthedrillshankcentrallyintothechuck(Pic.23). Rotate
the chuck by hand until the jaws grip the drill bit. The chuck
hasthreeholesaroundthechuckbody.Locatethechuckkey
and using an even torque move from each hole location until all
threeholeshavebeencovered.Continuewiththesteadytorque
untiltight.Donotovertightenotherwiseyouwillhavedifficulty
removingthedrillbit.