Revo DCZ-200-GS User manual

ThankyouforyourkindpatronagetoREVOBypurchasingREVODCZ-200-
GSHighSpeedSelfLubricatedOverlockSewingMachine.
We are sure by installation of this machine in your workshop, you can get
relief from your repeated troubles caused by the out-dated models of
Overlockmachinesbeingusedbyyou.
Furthermoreitwillmakewonderfulcontribution,certainlytotheproductivity
whenthemachineisoperatedappropriately.
To acquainte the users with proper operation adjustment and maintenance
aboutthismachineweareprovidingthisInstruction-Manual.
HeartilywishingyousuccessfulservicebyREVODCZ.
INTRODUCTION

SPECIFICATION
Name : HighSpeedOverlockedStitchSewingMachine
Dimensions : 350x225x285mm.
Weight : 21 Kgs
Construction : Dust-Proof, Oil-tight,Enclosedcompletely.
Stitchtype : Overedge seaming
SewingSpeed : upto6,500 s.p.m.
Stitchesperinch : 6-20stitchesperinch,7-23.5stitchesper30mm
Use : OveredgeSeaming, BlindHemmingandotherusesongeneralorknittedmaterials.
WidthofOveredgeSeam : 3-4mm,Standardand2-8mmisavailablebyexchangeofnecessaryGaugeParts.
StrokeofNeedle : 25 mm.
Needles : DC x1size9to18
AdjustingofFeeding : ExchangeofEccentrics.
KnivesforFabricCutting : LowerKnife-MadeofSpecialSteelFlattype.UpperKnife-MadeofSuperHardAlloy.
Lubrication : ForceFeedingbygearpumpandpressureregulatingvalve,andSplashedOilisalso
utilized.
Lubricant : Use H.P.'sTURBINOL-46,CASTROL'sPERFECTOT-46oranyequipmentLubricant.
KeepOiluptoMaximumLevelmarkedintheoilIndicator.
ChangetheentireOilafterThreeMonthsor1000workinghourswhichmaybeachieved
earlier.
CapacityofReservoir : ONE LITRE

INSTALLATION
Fix Supporting Board to the Table by Bolts and Nuts, on which the Rubber Cushion Holder Plate shall be fixed by Wood
Screws. $ Rubber Cushions must be put exactly into each horrow on the plate when settiing machine.
-
Machine Table
Supporting Board
-- Fixing --
-- Fitting of Belt Cover--
-- Dimensions for Semi-submerged Installation --
A
B
C
230
106
60
20
10
45
35
135
40 20
200
175
214
100
10
20
70
260
10
DD
55
280
365
Operator
200
105
4-15
16
4-7.9
Section D-D
1

SEWINGSPEEDANDTURNINGDIRECTION OFPULLEY
However the available highest sewing speed is 6,500 s.p.m., from the view point
of durability of machines, it is preferable to operate at the economical speed of
6,000 s.p.m. after the initial operation at 5,000 s.p.m. in 200 hours
approximately--onemonth.
LUBRICATION
Lubricant.
CASTROL'SPERFELTDT-46isrecommendable.
FeedingofOil
At the time of Despatch, the oil will have been drained completely from the
machine, So, it should be filled with Clean Oil to the Upper line of Oil Gauge (A)
removingScrewat themark"OIL"
Note : At the beginning of operation of brand-new machines or the re-use of
machines rested long time, Clean Oil must be fed around Needle Guard and
UpperLooperBaradditionally.
OilGaugeandConfirmationofOilFlow
CheckOil Guardeveryday beforeoperationreplenishcleanoilifthesurfaceof oil
is below the under line. At the beginning of operation, confirm that the oil is
flowingsmoothlyoutofOilSightNozzle(B)insidemachine.
ExchangeofOil
To keep the machine's life long time, oil for new machine must be exchanged
completely with new one after the initial operation of about 250 hours, And, after
theabove,itmustbeexchangedin2-3timeseveryyear,ExchangeofOil shallbe
madeaccordingtothefollowingorder.
(1) RemoveV-BeltfromMotorPulleyandtakeoutmachine-headtotopfaceof
theTable.
(2) RemoveBeltCover(A)
(3) DraintheOilfrommachinelooseningDrainHoleScrew(B)and(C)
A
SF. OIL
B
A
B
C
2

CleaningofFilterScreens
Everytime when the oil is exchanged, the inside of Base and Filter Screens should
becleanedremovingtheBase.
To remove the Base, take out 4 Pcs. of its Screws after draining Oil and turning
machineheadover.
After cleaning, make Base and its Gasket be as they were before and screws shall
betightenedexactly.
FITTINGOFNEEDLE
Please remember that groove of needle should face always to the back side of
machines.
FITTINGORDER:
(1) TurnPulleyuntiltheneedlecomestoitshighestposition.
(2) RaisePresserfootReleaseLever(A)tothedirectionshowedbyarrow,and
swingPresserFoot (B)outsideways.
(3) InsertNeedleintoNeedleBarasfarasitwillgolooseningNeedle
ClampingNut(C),thentightentheNutagain.Atthismomentthegrooveof
needleshouldfacetothebacksideofmachineasstatedabove.
THREADING
Threadingmustbemadecorrectlyaccordingtofiguresshowed hereinafter.
Incaseof1Needle, 3thread:
A Needlethread.
B UpperLooperthread.
C LowerLooperthread.
Drain HoleScrewforInner(B)...fordrainingOilinsideFrame.
DrainHoleScrewforOuter(C)fordrainingoilcollectedintheOpeningspacebetweenbetweenframeandbodyofthe
machine.
(4) Screw(B)and(C)mustbere-tightenedafterdraining.
(5) FeedingofnewOil.....
C
A
B
Filter
Screen
Base
Filter Screen
3

Position of Needle Thread Eyelet must be changed in case of blind hemming.
Refer to "Needle thread Tension" on page 9 please.
In case of 1 Needle 2 thread with spreader
A Needle Thread
B Lower Looper thread.
THREAD TENSION
Tension of thread should be adjusted as loosely as possible unless the good balance is lost in the seaming.
Stronger tension beyond necessity may cause the thread-breakage or skip-stitching.
Note: Refer to items regarding to the thread tension in "Proper Adjustments" on page 9 please.
Pressure of Presser Foot
The pressure of Presser Foot should be adjusted most weakly so far as presser Foot can act properly.
However the uniformity in the feeding and seaming will be lacked if the pressure is weak excessively.
The pressure shall be strengthened when turning Adjusting Screw (C) to the direction (A) and weakened turning to (B) to
the contrary.
PressureofPresserFoot
Thepressureof PresserFoot shouldbeadjusted mostweaklyso faras presserFoot
canactproperly.
Howevertheuniformityinthe feedingand seamingwillbelackedif thepressure is
weakexcessively.
The pressure shall be strengthened when turning Adjusting Screw (C) to the
direction(A)andweakenedturningto(B)tothecontrary.
A
B
C
(for Blind-Hemming Stitch)
A
B C
- - - - (for Wooly Tread)
4

ADJUSTING OF FOOT LIFTER LEVER
Adjust Pressure Foot to Start to lift from the top face of stitch Plate turning
Adjusting Screw (E) when the Foot Lifter Lever (F) is lowered in 3 mm from the
end of Adjusting Screw (E) for Foot Lifter Lever Stopper (D). When Presser Foot
is raised to its highest position, adjust the bottom face of it to be 4mm. from top
face of Stitch Plate.
At this moment Loosen Nut (I) and turn Stop Screw for Presser Foot (H) then
adjust the Screw to touch with Arm of the machine.
ADJUSTING OF WIDTH OF OVEREDGE SEAM
Towidenthewidth;
Loosen Screw (A) for upper Knife Holder and move the Holder to the
Direction (X) According to the necessity and tighten Screw (A) again.
Subsequently loosen Screw (B) for Lower Knife Holder. Then Lower Knife
Holder will move to the direction (X) by pressure of the spring inside,
consequentlyLowerKnifewilladherecloselytoUpperKnife(D)withsuitable
strength.And,tightenScrew(B)again.]
Tonarrowthewidth
Loosen Screw (B) for Lower Knife Holder and Move the Holder to the
direction (Y) according to the necessity and tighten Screw (B) softly.
Subsequently,loosenScrew(B)forLowerKnifeagainandmadeLowerKnife
(C) adhere closely to Upper Knife (D) by the pressure of spring. Then,
retightenScrew(B).
Note : For adjusting width of the overedge seam, make the blade of Upper
KnifebehigherthanifofLowerKnifein0-1mm.
SharpnessofKnives
Check the sharpness of knives turning Pulley manually with a thread put
between Upper and Lower Knives, after adjusting the seam of overedge
seam.
Note : When it may be necessary to sharpen knives please refer to
"SharpeningofknivesforFabricCutting"onPage14.
(1)
(2)
(3)
0 ~ 1mm
I
E
D
G F
H
3mm
Thread
A
B
C
Y
X
D
5

Main Feed Driving Eccentric (G) can be exchanged by the same manner stated as above, after removal of Nut (E) and (H)
DifferentialFeedBarDrivingConnector(L)
In case of exchange of Eccentrics, from which dust and rubbish should be removed washing, by oil. And, assemble them
makingtheirsteppedpartfaceoutside.
When Eccentric is smaller number than the one of "G" side is used at (C) side, the seam to be obtained will have a touch of
loose.
ADJUSTINGOFSTITCHLENGTH
By the exchange of Feed Driving Eccentrics, stitch length is adjusted, Each
Eccentric has a stamp showing Stitch numbers per inch. (25.4 mm) However,
please pay your attention to the fact that there will be difference in some measure
owingtokindorthicknessoffabricsandratioofdifferentialfeeding.
TheillustrationshowstheviewofmachinesetwithFeeddrivingEccentrics.
The Stitch Length shall be changed opening Cloth Plate (Upper) (A) and Feed
MechanismCover(B).
The illustration shows the condition removed Eccentrics and also Socket Wrench
andEccentricExtractor.ToExchangeDifferentialFeedDrivingEccentriconly.
RemoveNut"E"bySocketWrench(D)
RemovetheEccentricbyExtractor(F)Screwedintoitshole.
After,putEccentricatneed,andtightenNut"E"Asbefore.
A
B
D F
H
E C
L
G
6

Y 5 5 6 3 2 8 2 1
Y 6 6 7 3 2 8 2 2
Y 7 7 8 3 2 8 2 5
Y 8 8 9 3 2 8 2 3
Y 9 9 10.5 3 2 8 2 4
Y 1010 12 3 2 8 2 4
Y 11 11 13 3 2 8 2 4
Y 12 12 14 3 2 8 2 4
Y 13 13 15 3 2 8 2 4
Y 14 14 16.5 3 2 8 2 4
Y 15 15 18 3 2 8 2 4
Y 16 16 19 3 2 8 2 4
Y 17 17 20 3 2 8 2 4
Y 18 18 21 3 2 8 2 4
Y 19 19 22 3 2 8 2 4
Y 20 20 23.5 3 2 8 2 4
Y 22 22 26 3 2 8 2 4
Y 24 24 28 3 2 8 2 4
Y 26 26 31 3 2 8 2 4
Y 28 28 33 3 2 8 2 4
Y 30 30 35.5 3 2 8 2 4
Y 40 40 47 3 2 8 2 4
Y 50 50 59 3 2 8 2 4
Y 70 70 83 3 2 8 2 4
Y 100 100 118 3 2 8 2 4
Kind of Feed Driving Eccentrics
No. (Stamped) Stitches per inch Stitches per 30 mm. Parts No.
7

PROPERADJUSTMENT
(1)TENSIONOFNEEDLETHREAD
LooseningScrew(A)andliftuptheEyelet(B)for
tighteningofneedlethread,andlowertheEyelettoloosentothecontrary.
Ingeneraloverseaming,makeunderline ofEyelet(B)fitscrew(A)as thestandard
manner.
In blind hemming, two threads with spreader, make upper-line of Eyelet fit Screw
(A)
(2) TENSIONOFLOWERLOOPERTHREAD
MoveEyelet(C) tothedirection (F)whenit needstotighten thisthreadonly, and to
loosen it move Eyelet to the direction (E) loosening Screw (D). On the other hand,
when Looper Thread Pull-off (G) is moved to direction (F) both of upper and lower
looperthreadsaretightened,andtodirection((E)tobeloosened.
Such being the case, adjusting should be made in consideration of the goods
balanceofthreadtension.
(3)TENSIONOFUPPERLOOPERTHREAD
When it needs to tighten Upper Looper thread only, move upper Looper Thread
Eyelet (J) to the direction (K). To the contrary, for loosening of the said thread
loosenScrew(I)andmoveEyelet(J)tothedirection(L)
ADJUSTINGOFDIFFERENTIALFEEDING
On machines with mark "D" on model plates, adjusting of normal differential feeding (Shrink Sewing) can be made by
exchangeandcombinationofeccentrics.
At the sewing to increase the effectiveness of differential feeding by exchange of eccentrics turn Pulley manually and confirm
thatdifferentialFeedDogwillnottouchwithMainFeedingDogandStitchPlatebeforetheoperation.
A
B
C
F
G E D H
J
K
L
I
8