l Fll E I E ES R P The eq-:Jip:nen! comprises an independently ope:-ated rear tool floor at the tailstock end of the machine. The unit comprises an oil container, flange mounted moter and geared pump ~YVith pressure relief valveo Three fte:o-ible hoses connect the pump unit to the hydraulic sEde, these being pressure, return a~d drain lines~ rr:o~~t~:: :}11 ar: :::~tcnded crCJss slid;:. (P.~ front compound slide is also :J.tTe:d rer :1or=al tu.rTIing.~' _;etomatic copying control from the te:np!atc to F~he hydraulic slide is by iTIeanS of a stylus arm, mounted sEc.;~ 5.:ted :0 a h:;.'"G.!."2Ulic:l1y Dpe:-ated angle slide, the 'Nhole being a~ :;:p~r ro11::::
b~ariDgs1 actuating a spool "type valve. C:opy turning is carried out vvith the teo I in the normal upright position; an electrical reversing s\vitcn facilitating quick change- over from normal turTIing~ The .llmerican type, key drive, long tape: nose headstock spindle ensures complete protection and positive drive in both directions of rotation. ::::.,';:~~~~;;~i..t:: s,\..1pport ~1e2ds .~nd slide are mounted 011 :he rear of the jeG.~ GI:t of the heads ha\'~ng 8. graduated eccen:ric sleeve to give 'se: ;Jv~r~ 'Nh'~n :equ.ired. Both heads can. be loc:zed in any position alorrg the slide, the Ce:1IieS of each being adjustable by a handwhee1. eii ~S .~~:.:pplied the pl.::rrr u::it ::s ....
L3.11y piac~d OIl Ihe M Ii,.::- ~:I~leter saddle stop controls the movement ot the carnageG PE R TI T::?>lPLATES AND COMPONENT 8U~d'~1{S the maximum level shown on the dipstick. 'The circular templates arc usually produced exactly similar -co the finished work, and often the first batch of components is used The end fittings of the pressure, return and drain hoses are numbered I, 2 and 3 respectively, and care must be taken to ensure that these are connected to the fittings on the attachment and oil container bearing corresponding numbers. 2~ ~he i:emplate.
It is important that the template has a good surface finish, otherv~7ise irregularities ~~t;ill be transmitted to the \~lork piece and for more accurate reproduction best results are obtained with a hardened and ground template. Connection of the electrical leads to the hydraulic pump motor should be such that the direction of rotation is anti-clockwise when viewed from above. For work oflarge diameter, a smaller overall diameter tempLate may be used providing the profile and lengths are the same. It is important that the lengths of the component blanks be slflliiar and the ends centre drilled to a constant depth to ensure uniforrr,Jt: of shoulder lengths throughout the batch.
Before commencing copy turning, the hydraulic pump unit should be run for a few rninutes and the hydraulic slide fed in and out 2 few times by means of the hand control lever to allow the oil to circulate quite freely through the system. This should apply when- ever the m2chine has been idle for any length of time. The oil pressure reading on the gauge should be 150 lb. per sq. inch approximately, PREPARATION AND SETTING UP (Fig. 6) The oil container should be filled with the recommended grade of hydraulic oil and t..'he level always maintained between the end and 21