CHESTER U.K. H80 User manual

H80Bandsaw
InstructionManual
ChesterUKLtd
ClwydClose,HawardenIndustrialPark
Hawarden,NrChester
Flintshire.CH53PZ
Tel:01244531631
Email:[e-mail]
www.chesteruk.net

IMPORTANT
SAFETYFIRST
ALLMACHINESAREDANGEROUS
1.Usethecorrecttoolforthejobathandnevermakeamachinedoajobitwasnotdesignedfor.
2.Neverforcethetoolinthemachineitwilldothequickerandsaferatthecorrectrate.
3.Alwaysuseclampsorvicestosecurework– yourhandisnotstrongenough!
4.Whenchangingtoolsorworkpiecesalwaysdisconnectthemachinefirst.
5.Servicethemachineregularly;acorrectlyoperatingmachineisasafermachine.
6.Alwaysreplacebeltcoversbeforestartingthemachine.
7.Understandthemachinefullybeforeoperationandalwaysreadthemanual.
8.Gettoknowthemachineslimitationsandapplications.
9.Ensurethatthemachineissecurelyboltedtothebenchandthatthebenchissecurelyboltedtothe
ground.
TAKEGREATCAREWHENOPERATINGTHISMACHINETOPROTECTYOURBODY
1.Alwayswearsafetyglasses–everydayglassesarenotsuitable.
2.Dustcanbecausedwhenmachiningcertainmaterials,alwayswearamask.
3.Makesureyouarenotwearinganylooseclothingsuchasties,rings,braceletsthatmaygetcaughtin
themovingpartsofthemachine.
4.Keepaproperfootingandbalancewhilstoperatingthemachine.
5.Neverleavecleaningrags,etconornearthemachine.
ChesterUKH80Bandsaw
1

SAFETYFIRST
ELECTRICS
1.Allelectricaltoolsmustbeearthed.
2.Neveruseelectricaltoolsindamporwetenvironment.
3.Makesurethemachineisintheoffpositionbeforeswitchingonatthemains.
4.Alwaysimmobilisethemachinebeforeservicingorsettingupworkinthemachine.
5.Greatcareshouldbetakenwhenusingcoolantfluidwithmachinetools.
6.Ensurethemachineiscorrectlyconnectedandafuseoftheproperratingisused.
CHILDREN
1.Keepchildrenawayfrommachines,ifnecessaryfitsafetylockstothemachineandmainsswitches.
2.Neverusemachinerywhilsttalkingtovisitors,alwaysconcentrateonthejobinhand!
REMEMBERALLMACHINESARE
DANGEROUSIFNOTUSED
CORRECTLY!
ChesterUKH80Bandsaw
2

CONTENTS
1. MachineSpecifications......................................................................................................................4
2. RecommendedSpeedsforCuttingofVariousMaterials...................................................................4
3. MachineAdjustments........................................................................................................................5
4. Maintenance.......................................................................................................................................7
5. Troubleshooting.................................................................................................................................7
6. ElectricalConnection&Operation....................................................................................................8
7. Installation&Adjustments................................................................................................................8
8. PartList..............................................................................................................................................9
9. PartDiagram....................................................................................................................................10
10. StandDiagram..................................................................................................................................11
11. CircuitDiagram................................................................................................................................12
12. ElectricalPartList............................................................................................................................12
ChesterUKH80Bandsaw
3

MACHINESPECIFICATIONS
Motor 230V/50Hz420W
BladeSpeed 20,29,50m/min
Max.CuttingCapacity(@90°) Rounddeg90mm
Square90x120mm
Max.CuttingCapacity(@45°) Rounddeg60mm
Square70x65mm
BladeSizeLength 511/8”
Teeth 14tpi(asstandard)
Thickness 0.025"
Width 1/2"
SawBodyTiltingRange 0° 45°
PackingSize 760x295x465mm
RECOMMENDEDSPEEDSFORCUTTINGOFVARIOUS
MATERIALS
MOTORPULLEY SAWPULLEY
MATERIALCUTTINGCHART
Material Speed (SFM) BeltGrooveUsed
50Hz 60Hz MotorPulley SawPulley
Tool,Stainless 20MPM 24MPM SmallA LargeD
orAlloySteel (65FPM) (80FPM)
BearingBronzes,MildSteel, 30MPM 36MPM MediumB MediumE
HardBrassorBronze (95FPM) (120FPM)
SoftBrass,Aluminium 50MPM 61MPM LargeC SmallF
orOtherLightMaterials (165FPM) (200FPM)
ChesterUKH80Bandsaw
4

MACHINEADJUSTMENTS
TRACKINGTHEBLADE
1. Firstdisconnectthemachinefromthepowersupply
2. Openthebladeguard.
3. Loosenthetensionontheblade,byturningbladetensionknob Ⓑ(seeFig.2).
4. Loosen grub screw Ⓘ (see Fig. 3). This will enable the motor pulleyⒿ (see Fig. 3) to be
adjustedwhilstontheshaft.
5. WhenthepulleywheelisadjustedretightengrubscrewⒾ.
6. Replacetensiononthebladeusingthebladetensionknob,andclosethebladeguard.
7. Reconnectthepowersupply.
BLADEGUIDEBEARINGADJUSTMENT
Itisimpossibletogetsatisfactoryworkfromthesawifthebladeguidesarenotproperlyadjusted.
1. Disconnectthemachinefromthepowersupply.
2. LoosentheHex.nutⓀ(seeFig.4).
3. AdjustbearingsⓁ(seeFig.4).
4. RetightenHex.nutⓀ.
5. Reconnectpowersupply.
BLADEGUIDEADJUSTMENT
Therearetwobladeguides,oneeachsideoftheworkpiece.
1. Disconnectmachinefrompowersupply.
2. FirstloosenHex.boltⓂ(seeFig.5).
3. PivotbladeadjustmentbracketⓃuntilthebladeissquarewiththemachinebed.
4. RetightenHex.boltⓂ.
5. Reconnectpowersupply.
Note:Bladeguideassemblycanbeadjustedbyunclampingknob Ⓖ(seeFig.2).
ChesterUKH80Bandsaw
5

MACHINEADJUSTMENTDIAGRAMS
ChesterUKH80Bandsaw
6

MAINTENANCE
1. Cleanthebandsawaftereachoperation.
2. Coatthemachinewithrustproofoil.
3. Use a standard grade oil to lubricate the bandsaw’s components. SAE30 oil is
recommendedforthispurpose.
TROUBLESHOOTING
Symptom PossibleCauses CorrectiveAction
ExcessiveBladeDamage 1.Materialislooseinthevice. 1.Clampworksecurely.
2.Incorrectspeedorfeed. 2.Adjustthespeedorfeed.
3.Bladeteethspacingistoolarge. 3.ReplacewithasmallerTPIblade.
4.Materialistoocourse. 4.Usebladeatslowerspeed&TPI.
5.Incorrectbladetension. 5.Adjusttensionsobladedoesnot
sliponthewheel.
6.Bladeisincontactwithmaterial 6.Placebladeincontactwithwork
beforethesawisstarted. onlyafterthemotorhasstarted.
7.Bladerubsonthewheelflange. 7.Adjustthewheelalignment.
8.Misalignedguidepivots. 8.Adjustguidepivots.
9.Bladeistoothick. 9.Useathinnerblade.
PrematureBlade Dulling 1.Bladeteetharetoocourse. 1.UseasmallerTPIblade.
2.Toomuchspeed. 2.Reducethespeed.
3.Inadequatebladetension. 3.Adjustthespring
4.Hardspotsorscaleonmaterial. 4.Reducespeed,increasefeedpressure.
5.Bladeistwisting. 5.Replaceblade,adjustbladetension.
6.Insufficientbladetension. 6.Tightenbladetension.
7.Bladeissliding. 7.Tightenbladetension,reducespeed.
UnusualWearonSideor 1.Bladeguidesareworn. 1.Replacebladeguides.
BackofBlade 2.Bladeguidepivotsaremisaligned. 2.Adjustguidepivots.
3.Bladeguidebracketsareloose. 3.Tightenbladeguidebrackets.
TeethRippingfromBlade 1.Bladeistoocourseforthework. 1.UseafineTPIblade.
2.Toomuchpressure,speedistooslow. 2.Decreasepressureandincreasespeed.
3.Workpieceisvibrating. 3.Clampworkmoresecurely.
4.Bladeistoofineforthework. 4.UseacourseTPIblade.
MotorOverheating 1.Bladetensionistoohigh. 1.Reducethebladetension.
2.Drivebelttensionistoohigh. 2.Reducethedrivebelttension.
3.Bladeistoocourse. 3.UseasmallerTPIblade.
4.Bladeistoofine. 4.UseacourserTPIblade.
5.Gearsneedlubrication. 5.Lubricategears.
6.Cutisbindingblade. 6.Decreasethefeedandspeed.
Bad,CrookedorRoughCuts 1.Feedpressureistoogreat. 1.Adjustspringtoreducepressure.
2.Guidepivotsaremisaligned. 2.Adjustguidepivots.
3.Inadequatebladetension. 3.Increasebladetension.
4.Bladeisdull. 4.Replaceblade.
5.Incorrectspeed. 5.Adjustspeed.
6.Bladeguidesarespacedouttoomuch. 6.Adjustguidespacing.
7.Bladeguideassemblyisloose. 7.Tightenguideassembly.
8.Bladeistoocourse. 8.UseafinerTPIblade.
BladeisTwisting 1.Cutisbindingblade. 1.Decreasefeedpressure.
2.Bladetensionistoohigh. 2.Decreasethebladetension.
ChesterUKH80Bandsaw
7

ELECTRICALCONNECTION&OPERATION
ELECTRICALCONNECTION
1. Themetalcuttingbandsawisequippedwithastandardplugtoconnecttopowersourcewith
singlephase,50Hz,and220Vor240V.
2. Fortheprotectionofthecontroldevice,werecommendtheoperatortosupplyafusewith6A
currentoffuse.
3. Thetotal length between supply fuse and plug/ socket connectionshall not be greater than
1.5m.
ELECTRICALDISCONNECTION
1. Removing the plug from the socket carries out the disconnection of the metal cutting band
saw.
2. Besuretodisconnectthemachinefromthepowersource,whenyouwanttostopthejoband
maintainorinspect.
GROUNDING
1. Thegroundingsystemofthismachineisprovidedinthewayofastandardplug,whichisin
compliancewiththelocalstandard.
2. WARNING!“Donotchangetheplugintoanyothertypethanisprovided.”
OPERATION
1. START: Pressthebuttonmarked“I”.
2. STOP: Pressthebuttonmarked“0”.
3. STOPATTHEENDOFCUTTING: This machine will stop automatically at the end of
cutting.
INTERLOCK&ADJUSTMENTS
INSTALLATION:
1. Beforeinstallation,sufficientspacewithatleast2.5m*2.5mbyafreespaceofatleast0.8min
alldirectionsshallbeprovidedforthemachine.
2. Theplaceprovidedforthemachineshouldbecleanandflat.
3. Sufficientlightingshouldbeprovidedaccordingtothelocalregulationformetalworking,orat
least300Luxambientlightingintensity,ifnoregulationsexists.
ADJUSTMENTS:
Adjustmentsofsawblade
1. Thebladetensionknobwiththeindicatorcarriesouttheadjustmentofthesawblade.
2. Suitable blade tension is adjusted by hand without the help of a tool. For a suitable blade
tension, you should not be able to move with the pressure of your finger, with appropriate
forceatthesawblade.
Adjustmentsofbladecover(Left&Right)
Theleftandrightadjustablebladecover isdesignedtopreventaccesstothemovingsaw blade
duringcutting.Theymustbeadjustedasnearaspossibletotheworkpiece.
ChesterUKH80Bandsaw
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PARTLIST
ItemNo. ItemDescription ItemNo. ItemDescription ItemNo. ItemDescription
1 Base 40 Bracket 79 Pulley
2 Bolt 41 Plate 80 Bearing
3 Chain 42 Bracket 81 Shaft
4 Pad 43 Bracket 82 SealingPlate
5 Washer 44 LockingHandle 83 Pulley
6 Bolt 45 Knob 84 Oilseal12.32.7
7 Nut 46 Bolt 85 Sleeve
8 Bolt 47 Washer 86 VBelt
9 Bolt 48 Washer 87 Pulley
10 Bolt 49 Bracket 88 Washer
11 Washer 50 Plate 89 Screw
12 Bolt 51 SealingWasher 90 PulleyCover
13 TurnionBracket 52 Gear 91 Key
14 Nut 53 Bolt 92 Motor
15 Handle 54 Bolt 93 AdjustingKnob
16 Spring 55 Bracket 94 Base
17 Nut 56 Bracket 95 Bolt
18 Plate 57 Bearing 101107 STAND
19 Bolt 58 Sleeve
20 Axle 59 Washer
21 Shaft 60 Knob
22 ScaleLabel 61 Bolt
23 Bolt 62 Axle
24 Washer 63 Wheel
25 Pointer 64 RetainingRing
26 Washer 65 Bolt
27 Hex.Bolt 66 Bracket
28 WheelHandle 67 Plate
29 Washer 68 Pin
30 Bolt 69 Blade
31 ClampJaw 70 Knob
32 Bolt 71 Cover
33 Plate 72 Screw
34 Washer 73 Wheel
35 SpringWasher 74 Shaft
36 Vice 75 Washer
37 ThreadedShaft 76 Key
38 Knob 77 MainBody
39 Bolt 78 GearBox
ChesterUKH80Bandsaw
9

PARTDIAGRAM
ChesterUKH80Bandsaw
10

STANDDIAGRAM
ChesterUKH80Bandsaw
11

CIRCUITDIAGRAM
ELECTRICALPARTLIST
ChesterUKH80Bandsaw
12