NUTOOL MC550 - Page 22

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found to be missing, the machine and its accessories should be
returnedtogetherintheiroriginalpackagingtotheretailer.
Do not throw the packaging away, keep it safe throughout the
guarantee period, then recycle if possible, otherwise dispose
ofitbythepropermeans.Donotletchildrenplaywithempty
plasticbagsduetotheriskofsuffocation.
LOCATING THE MACHINE.
When determining where to locate or permanently fix the
machine,considerationmustbegiventothefollowingpoints.
Isthereasuitablemainsoutletsocketnearby.
This machine must be permanently mounted and firmly secured
onto a bench that is at a suitable height, and that is strong and
stableenoughtocarrytheweightofthemachine.Duringthis
process the machine must be levelled in all planes using a spirit
level.
PREPARING THE MACHINE.
This machine has been supplied with all bare metal surfaces and
accessories treated with an anti rusting protective coating which
mustberemovedbeforeuse.Theidealmethodofremovingthis
protectivecoatingistouseawaterbaseddegreasingagent.
Whenalltheprotectivecoatinghasbeenremovedtheexposed
metal surfaces should be given a light coating of a general
purposelightmachineoil.
FILLING THE GEARBOx.
To fill the gearbox, remove the four socket cap screws that
secure the gearbox cover plate (Pic.2) (2.1). Note that the
matingsurfacesarecoatedwithgreasewhichactsasaseal.
Fill the gearbox with enough mineral based multigrade oil to be
visiblehalfwayupthesightglass(Pic.2)(2.2)..Replacethe
gearbox cover plate ensuring that the mating surfaces are not
contaminated with swarf or other debris, apply a light coating of
greaseandsecurewiththefoursocketcapscrews.
Important Note: Check the oil level in the oil reservoir by
viewing the oil level in the sight glass and top up when the oil
levelisvisibleatthebottomofthesightglass.
RUNNING IN
Beforeusingthemachineitmust be“Run In”,toensurethat
after transit and filling the gear box with oil, the oil is fully
distributedontothegears.Atthesametimethe“V”drivebeltwill
be conditioned and adjustment may be required to compensate
foranystretchingofthe“V”drivebelt.
Set the gearbox selector levers to give the slowest spindle
speed(Pic.3)(3.1).,ifdifficultyisexperiencedinensuringthat
the gears are fully engaged, turn the chuck by hand until the
gearshavefullymeshed.
Ensure that the lead screw automatic drive selector lever is in
thedis-engagedposition.
Plug the mains supply lead into a suitable mains supply socket
and switch on. Switch on the lathe. If any unusual noise or
vibration is experienced switch off the machine and investigate
thecause.
Allow the machine to run at slow speed for twenty minutes
checking for any abnormal conditions including unusual noise
orvibration.Increasethespeedprogressivelyuntilthemachine
hasrunatallspeedsforaminimumoffiveminutes.
Turn the machine off and remove the mains lead from the mains
supply socket.Allow the machine to stand for approximately
fifteenminutes.Afterthistimecheckthemachineforoilleaks
andareasofexcessivetemperature.
Check the movement of all the slide ways by turning the hand
wheels, ensuring that the slide ways travel over their full range
of movement. If movement is stiff or obstructed re-lubricate
the lubrication points and make any required adjustments to
theslideways.To adjusttheslideways (seeexamplePic.4)
slackentheappropriatelockingnuts(Pic.4)(4.1)andturnthe
adjustment screws until the movement of the slide way is free
andwithoutanyplay.Re-tightenthelocknutensuringthatthe
adjustmentscrewsdonotmove.
CHECKING THE “V” DRIVE BELT.
To check that the “V” drive belt is correctly tensioned, using
moderate pressure, press your finger onto the centre of the
drivebeltbetweenthetwopulleys.Thedrivebeltshouldmove
approximately 13mm (Pic.5) (5.1)..  If the “V” drive belt has
stretched during the running in period and moves more than
13mm adjustment will be required. Adjustment of the belt
tension is achieved via the adjusting screw and nuts located at
thetopofthemotormountingplate(Pic.6)(6.1).
LUBRICATION.
Whentherunninginperiodhasbeensuccessfullycompleted,
lubricationofallothermovingpartsmustbecompleted.using
mineralbasedmultigradeoil.Forlubricationrequirementssee
(Pic.7)andthelubricationchart1.
CHART 1.
Ref:   Method 
7.1 Gearbox Gears & Bearings Spray Every60days
7.2x4 Saddle Longitudinal slide ways Oil can Every day
7.3x3 Compound slide Slide ways & operating screw thread Oil can Every day
7.4x2 Tail stock Screw thread and barrel Oil can Every day
7.5x3 Lead screw Head & tail stock supports & lead screw thread Oil can Every day
7.6x2 Cross slide Slidewaysandoperatingscrewthread. Oil can Every day
7.7 Thread gears Gears Light spray Every day