SERVICE INSTRUCTIONS FOR THE Transport Maintenance …

1 SERVICE INSTRUCTIONS FOR THECHRISTEN 05-10 drill GRINDING MACHINE~1112334566 Table of contentsTransportMaintenanceElectrical connectionsGeneralTechnical dataStandard and special accessoriesView of the 05-10/ item 501 Electrical diaqramHow to set the grinding wheel, very important!How to set the grinding anglesHow to clamp the drill and how to set it tolengthHow tog rind the drillHow to dress the grinding wheelHow to balance the grinding wheelSize of grain of grinding wheelThe four-facet grinding methodGrinding errorsCorrections of grinding errorsCentring of the 05-10 Grinding wheels' listSpare parts6788899910, 111213, 14, 15, 16, 17, 18~Special accessories-Point thinninqattachment, item 506 GeneralGrinding procedureGrinding wheelsDressing of grinding wheelStandard- and speqial accessoriesGrinding wheels' listSpare parts1222222-Special grindinq attachment for small drills, item 507/5089O11123,2425 Range of application 26 Assembly 26 Handling 27r-1icroscope 27 Grinding wheelsf list 27 Spare parts 281 SERVICE INSTRUCTIONS FOR THECHRISTEN 05-10/ ITEM 501 drill GRINDING MACHINEM achine number.

2 TransportThe CHRISTLN 05-10 drill grinding machine is delivered as an entirelyassembled unit, with the exception of segment 45C and its associatedmagnifying glass holder which is sent separately. After unpacking themachine, make certain that all accessories are accounted for andclean all parts to which a protective grease coating has been appli-ed. When cleaning the machine, take care that neither oil nor greasereaches the grinding mount segment 45C with associated magnifying glass holder,pivoting fork leA and chuck on the pivoting drum and clamp it intoposition by means of lever with a dry brush the abrasive dust produced by grinding. Thefilling of grease inserted at the factory into the bearings of thepivoting device and of the motor suffices for 5000 to 10000 workinghours, during which time no refilling will be guides (for example that of adjusting segment 45C, pivoting fork18A, chuck and chuckholder) should be cleaned according to the fre-quency of their use and lubricated slightly with a fine machineryoil.

3 When the machine is not in use, it should be covered with aplastic connections;f!4j;':""'c'C" quip the machine with a plug corresponding to the kind of currentprovided. When connecting up, be very careful to connect correctlythe neutral conductor with special marking (yellow-green) .Connectthe other phases so that the motor turns in clockwise direction (seewiring diagram on page 5).The built-on motor starting switch is suitable for star as well asfor delta connection (see Figs. 1 and la on page 5) .It should benoted that a corresponding transformer must be mounted for the dif-ferent requi,;:~d-:for three-phase A-C connection k~vfor single-phase current connection k~vGeneralThe CHRISTEN 05-10 drill grinding machine produces the four-facetpoint grinding method on left and right twist and flat drills withinthe capacity of.

4 020" to .394" dia. (0,5-10 mm) .The basic machineallows to grind d'Eills with diameters from .020" to .250" (0,5-6,35 rom)and a pivoting and clamping unit, available as special accessory, istaking drills from .236" to .394" (6-10 mm) .The ",ell-known advantages of the four-facet point are:-seLf centering properties-close tolerances of the drilled holes-improved tool life owing to reduced drilling stresses-simple adaption of the cutting angles to the material to be machined-good reproducibility of given cutting anglesHeedless of any run-out of the drill in the chuck, concentric grindingof both cutting lips is naturally attained due to patented supportingdevice, as each of the two drill lands rests in turn against the samesupport, in the immediate vicinity of the grinding wheel. Contrary toother drill grinding machines, both cutting lips can therefore beground in one set-up.

5 This is very time-saving, as readjustments andcorr~ctions otherwise necessary for concentric grinding are thus avoided.'The machine base 50A incorporates the electrical equipment comprisinga transformer for the lighting of the setting magnifying glass, atermipal board and a capacitor in the case of single-phase of capacitor: 20 uP at 110 volts 6 uP at 220 voltsOn the base is mounted the housing 63, which supports the horizon-tally fitted motor 69/70 with built-on switch 71, as well as the pi-voting device 46C. The setting drum 39A for setting the clearanceangles and the setting segment 45C for the point angle are mountedin the support of the pivoting device 46C. The tumbler switch 68,socket 66 for the 6 V illumination and the security holder 67 withbajon~t joint are located sidewise on the plate. The filament lampcan be exchanged by means of releasing the screw 64 and draw out theholder grinding wheel 40 with flange 21 is secured directly to the endof t~~motor shaft and can be adjusted in axial direction.

6 Thead-justed grinding wheel is fixed by means of the knurled screw point thinning attachment which is an optical equipment will bemounted on the free end of the ~al1,the brake handle and the flange cover have to be E C H N I CAl O A ! AApJ)lication rangeFour-fatet grinding method for two-lip left- and righthand twist and flat drills within the diameter range " to .394" (0,5-10 mIl). The basic machine allOtls to grind drills lith diameters from .020" to .250" (0,5-6,35 mm).Clamping of drillone chuck with 4 interchangeable collets is available for clamping drills .ith diameters from .020" to .250" (0,5-6,35 mm).Clamping ranges:.020" " (0,5-1,5 mm), .059" " (1,5-3,0 mm), .118" " (3,0-4,5 mm), .177" " {4,5-6,35 mm).Orills with diameters from .236" to .394" are clamped by means of a chuck with 2 toIlets delivered with special clampingand pivoting unit (item 509).}

7 Setting ranQePoint angle for drill dia..020" " (0,5-6,0 mm) 60 to 180 Point angle for drill dia..236" " {6,0-10,0 mm) 100 to 180 Lip clearance angle 0 to 15 Angle of the secondary relief-ground facet by means of fixed st9p uniformly adjusted to approximately 30 ~Three-phase flange-motJnted motor with -Power 0,1 kW at 50 cycles 0,1 kW at 60 cyclesbuilt-on switch: -Speed 2780 rpm at 50 cycles 3300 rpm at 60 cyclesSingle-phase flange-rnounted motor for 110 volts ~ Power 0,1 kW at 50 cyc;les 0,1 kW at 60 cyclesor 220 volts respectively with built-on switch: -Speed 2780 rJ)m at 50 cycles 3300 rpm at 60 cyclesOimensions of machine without point thinninQ attachment with point thinning attach~entoverall dimensions: 12" x 16" x 11" /300 X 400 X 280 mm 19" x 121" x 11" /480 x 320 x 280 mmNet weight: lbs /28 kg Ibs /32 kgGross weight: 86 lbs /39 kg lbs /43 kgseepage 26item 505 clamping unit for dritls with MT 1itel!}

8 ! 509 ctamping unit for drills dia..236" ..39lt"(6-tO mm)item 513 pivoting unit for 2, 3 or 6 divisions fordrilts dia..236" ..39411 ( mm).Supplementary grinding attachmentsitem 506 point thinnIng attachment comptete(see page t9)item 507 speciat grinding attachment forsmall dritts additionat508 special grinding attachment forsmall dritts mounted on machineinstead of standard attachmentStandard accessories for machine item 5011 item 500 wooden box comprising: -!I precision chuck holder1 collet for dia..020" " (0~5-1,5 mm)I collet for dla..059" ~ .118" (1,5-3,0 mm)I collet for dia..118" " (3,0-4,5 mm)I collet for dia..177" " (4,5-6,35 mm)t dIamond dresserlsetting gauger grjndln9 wheel dla. " (125 mm) 18O-G-15 If, on flangeI sing)e-o'. th,.ee-phase motor with switch and cableI magnifying )ens, illuminated (6 volt, with transformer)4 kaysfor socket cap screws.

9 078", .098" , .118" and .157"{2/2,5!3!4 mm)I pl astl c coverI 1nstruction manual-Further special accessoriesitem 6AC centering tongs carbide tippeditem 7A friction nut for centering tongsitem 15/16AC drill stop carbide tippeditem 21 grinding wheel flange (additional)item 30 grinding wheel diamond dresser (additional)item 120 adapter (for inch-grindlng wheels)item 524 balancing device completeitem 24 balancing arbor, separateSupplementary grinding wheels dia. " (0 125 mm)for 05-10/ item 501 see page grinding wheels dia. " (~ 75 mm)for item 506 see page various grinding whetJls see selecting list on page p f CIA L A C C E S S 0 R I S-Suppl~mentary clampinq devicesftem500 ctamping unit for drills dia..019'1- .250"(0,5-6 mm)item 502 clamping unit for drills dia..235" "(6~ mm)item 5p3 pivoting unit for 2 or 4 divisions for drillsdia.}

10 019" " {0,5-6 mm)item504 pivoting unit for 3 or 5 divisions for drillsdia..019" !1 (0,5-6 mm)5A6 FIG. '/v'LIghting~ 6 \~~ BA JsPlug~zxvvwL6 ~oJ\:IOj"''"""I ~~Transformer Switch-tlI.~IQC -~~--0;,- E>0'1;--blue-blue!Q tc:-0>-Q)Q) 1,.>-0-IsLblackRIDP ower SupplyPower SupplyOrive by three-phase AC motor, star connection ~Orive bythree-phase AC motor, delta connection ~Orlve by single-phase current motorFig. IFig. laFig. 2 FIG. 2 Single-phaseCurrent motor1/8 HP' 2pQ) ~ :I:..Terminal board"i:)(13:;Q) V = 6 uF110 V =20 uFu, ,,'J Pl ugFuse m ~ Sx20 w! r-.~o c:1 -~ 0>, -I R I s'"i>- ~lEPower Supply6 Switch~!!2wto set the grinding wheelBefore ever ut tin the machine into o eration and after each truinup of the grinding wheel ~ith the diamond dresser 30, set the c!lB~si2g :1se!ting gauge 34 delivered with the m Thegrinding wheel flange 21, secured by means of a clamping key on theend of the motor shaft, can be slid in axial direction after slacken-ing of the knurled screw set the grinding wheel, open the centering tongs 6A slightly bymeans of nut 7 and pass the pivoting device 46C over the grinding wheelto the extreme inner position.}