Weiler LZ 280 S User manual

2til
Precision
Sliding
Surfacing
and
Scrwcutting
Lathes
Model
LZ280
S
Withmain
drive
by
two-speed
2.211.0
HP
motor
and
variable-speed
vee-belt
drive
forinfinitely
adjusablespindle
speeds
from26to 2000
RPM.
Also
available
withsingle-speed
2 HP
motor
for
spindle
speedsfrom52
to
2000
RPM.
with
stepless
controlrange.

INSTRUCTION MANUAI-
for
1i'I SIItr.T}'IG
PRECISION
S"S" & S"C.
':
QUICK
Cr-rAtrGE
GEAR
CEIJTRE
L/,XTHE
r/-'/l
\ .,r I
\-J \*J iltl t=tDf
L_J
r -rr. rLl\l
Seri
es
Type LZ 2BO
Seria,l-*No
"
Type LZ 2BO
Seri a1-lrlo
"
GN
hlr*ra
ri
Ity
t,,_..i
MAR
. - .:a:, _
J
IIEILER I{GI,IJERKZEUGIUASCHINENFABRII(
17
U tr/UErZbUrgcrStr"
Po0n
Box 1140 - D-BSZZ Herzogenaurich-"i;-N;;;;;;;;
Phone
z (09132) 1312t
- (i Li,nesi -- Telex: wr,R
629 sga
Federal Republic of Germany
F fiN-F
T I,TI
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27 te74
:ii
it
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OFERATING TTISTRUCTTOTIIS
FOR
It\,fEITERil
Series LZ-28O
TYPE
SiIRIAL-lTo.

OPrlRAt'IliG IIiSTRUCT f O1{S
IITTEI
LZ-2BO
'1 - PACIfiITG AND SIIIFIIENT
1
,2 Unpacking of Lathe
Cbecking of nel:-very
Tr.ansliort of unpacked l,[achine
2 - INSTALLATICN
2,1 - -!cunda.tion
2.2 - leveling
zPREPARIIIG !:rOR
CPERATI0N
C eani-ng
Tlrrirr-i nrti nn
pniockrng
l-inandtA tr71I/a
i.,iotor
Adju-straent
for Belt Tensioning
Fo',''-er
Supply fns tall-ation
tllectric Coolan+" iiystem
4 - COIISTRUCTTCI.I
OiI iATiIE
i{ead
s
i ock
Fedrii'nr-,l;' Thr.e a.r-l
- Crri,ti rrr' :'.eeha.nisn
4.21 - Quick Changr.'
Gear no:r
4,22 - ?ick-Off Gear Train
4.Zl - Feerl iJhaft
4.24 - Lead Screi,v
Carriage
4.11 - CoirpoundRest
4,32 - Apron
Tailstock
lrive
5-
6-
).1
7,9
7A
<R
). I
4.1
4.2
-
4.1
-
4,4
-
^r
+.) -
ADJUST]r,l]lITSAt\iDSERVIC_E I,RACTJCE
5.1 - GeneraI fnfornations
5.2 - Iriain Spindle Adjustment
,.21 - Adjustment of Front Spindle Bearing
5.22 - Adjustnent of, Rear Spindle Bearing
5.1 - Dismounting of l'ain Splndle
5.+ - Settiirg-Up Change
Gears
5,5 - Adjustnent of Compound
Rest Feed Screws
-/
5
.6 - Replaicing Bel ts
5.7 - Troubles
INSTRUCTIOIISFOR LUBRIChTION
7 - nRfVE AR.RANGirilirdNT
P . SUPPUIj'JE}ITS

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Cl,IlIG iilYl SiIf Pr.iJN'I
-r!'rery TE-i[IijR Stanoard Latlie, r,i]ren ordered for s-Liipr,ieni frc,r,: r,-;e factor;7
in e-rpc-r.l packing, i-s carefu]1;r packagec in use cf a si:rg1e ca-;se
,,..,i:-:ch
is cf :rrgid construct'i on and. ';?roroughly l-inecl r:,iitli riiiaterirroof pinlrelr,
'-i-ne.r
la'uile is mouni;ei by lock sclfetr bolts on a sirid-bo-uto:l a.ri adc,:trr;
i;ci7
ll-ockeri i'rri braceC +;h-r:ou,ih
sti if ening ribs, 'i;o provi de naxirilj.ji. :-rl.^rctj-ca,i
1;ro
te c i;l
cn
Acc':sso:rles ani exrra aitachments, orclered cptionalJ-yu are ci_lcj.e,:r
i:; i:
separ"ate sliai i box, xhich i-s secureli. anchc,red i nsi-d.e of *l-ir..j:Lr,-
'b37:.
Frotec';:-v'3 c,)ati-1:I,g
pre$errraiirn of all bri;1ht surfe.ces of ';i-e l.ar,i:.r ii:c
its accessofry ec-,i-u:;cr:t rs maCe by i;l'eatrnent with i,,Jarr,ei,ilaocf
;-r..r,
ase or.
oi l i.ita-" i s ea
sj iT : cr,.cvc
i .
1.1 - rl:3rClif,-C
U-pcn recei;t of sjril-.rient, be s;ure tira"; the pacicin.3 .:;: lvel-.'t-
t:ii-r
r,,i::.-
l.athe has -:,ci beeh,lano3e'1 in transit" If ciancged i1 a.:-,1.'-,r:l;;',
,:.:,-c,:
.
at once r,he t:'anslcrtiir.l; 31ju.11cJr
cr -che slt-i
c,-.irrg ccl]r!a.r-:y. l e.-r-a:]cri,:.,.c
.
1y r.;no is:'espor:sjr:-'Le fc.r: safe forrvariinti tc des,rj.rer
*_iori.
iic: rr.n,oackiri,:,
rrio l-a.,i,lle,
operl the case f-i:crr froir-i; s:_ii_,,.L l:.:i...,::
l::ar']<e11
"0'Jen iIere ,'
.\enove front a:lf rear' bor.drng iry piLliin{l .t}ie p-Lanl:r
na_-il.r,;
t ',,!rr.!:
1c':sen thc nc'un+"i-n51
bcits loca'i;ed e.-t both si,je enrjs: o.i no';t.,i,-t
ril.:
''"e-lie
oif ii'e -roL: 6e2-1'r-'-ing
to6Jei,li.er vith dirle planii-ir3.1,. lo a.-1..1,
'""i;li carr:, a'lso wli.en ieiloving the stif'ferri n; ribe rrlacerj ac)-..cr.i.
the beihrra;rs c1' lri iire .
Tc facii.it:'ve iicvlng on tiie
sl,;ic1-,rrctton under rhe fail:re
r:e:it tc its iccation r_irea.
1"2. - Ci]ri]."l]tG Orr]ELf VI;RY
rii'ler -bire l-a];ile iias beei'i uripacked, checjr c...re:u l1y -,;nt: ,-:<.
;--,_;)r-,c",r..:
t:.nrl
:cces::o:ric:i; sr-rpirLiea for courpleiion accor.ding Lo tll", i)e.:.:i-,.e.
-.ctc.
Ir: case of cl_air;;sr
, i'or any deficiency i n q.rantity c:: ilri,i,ii-
..Jt c::
for f i;-u.Lt
rn the equipment, ihe buyer tou-"f irn*ediriteiy ullo:r recc r
fii ve ';rritien notice to his se11er, -<pec:ifying -bire
niitu_::rl
oi' r;1.
:i.:r
ani ref erring 'Lo 't.lle Serial- liu-uber cf l athe. Tl:ie ser.ial lurrbe i. :,,1
'o
1;i,nlpei.
an il:e -'iront guideway of bed cn tai ls ,r,ock errii
:,) .-Ti-tr:.ir'i[r
FriliT 0F r-T1'l]
ACIi
ji] rirl0I{IliE
ijher:. nroving in irse of a crarfe, the l-atire should be, i,,' r:rcar-rs,
su-fi'icieniry thic}r henp ropes (never use chains or..;r-i
le c;_:bl-il
so ;;ltrngr as to avoicl stressing unriullr any Dari liiereoi,
cc.'r',
sicereution nr-i.st'be gi.ven to the disr,,ributicn of wcj_,:iii
tlre irorizonta-t susperr6ion of machine.
Fl-:r,ce
'ui;e hernp ,:rorie
under the headstock an,j Lail_stock endc c,i c,,l
i1.r
tray, close to exti':rnal- sice face of each peclests,r. T-:se
i;c1,, -,,,ccr,
b-l-ocks or stu.ffings.ls sl,acers for pr:e-",enti.n,g
Lhe r:opc tc ccir.tac_r.r;
tlie ilaciiine or any part thereof , in order to protec.r the D&:i-:1
; as
i;,rel,l-
as the nenbeL:s of rrachine against clanage.
flor:r, it rs t:ecoixjrtejldcci ic.l.€..1.,.r.-,
i.:.c
until the machii're has br:e rr s,tit'r-
iiit.-ri
i' ta

TIiSTALLAT] ON
This Lathc after assenbly in the iact.ory has l:eer: carefully checked for
alignment an,j tesieC for accurac)r.
?o main',,ain the -=ame oegree of accrrracy as si:eciiied on the issued and
aocompanying inspection te:;t sheet, 'cl:e
lathe must be set level. and soliC"
Precautions si-roulc be taken to avoid ihe trairsnlssion of vibrations tn
the l-aihe frorn eutsi-Ce source, if it should be used for precision work
renrri rirs a hi.qli desrec of i''ini-sh, It 1s essential iha-t the fa'the i-s not
n'lcno.4 .''rrAan '.r'cit condi *.ions i.ir o"he
irroxinrtv of heirrr rnachi r,e s used f or
vJL!..|-9Jl'|vgy.)
rnr".-rlirn' arrn-o*i nrq nr l--lrn=:J r1n-krirrc,q lr:r;-i:r'r1r .lrn2rrfr roni nnnnrf -imo nar*o
IUU6lrA-1b JlrqaOUrJrr.t v: urfeoE rrrdrJrrrr:\-u :r.f,vL'irr tLtt4VJ rE9-r-pIL'UCUlrrtj iJ4a uD.
AS a nxean_*of accoi:plishin3 rhese resu]is e ii is cu;Srjs-ted to prorride a
rigicl foun"iatj"on.
2,1 - -q!'fi[r_1Tr0_rj.
i
To p::eveni -;ne effeci of deflection and vibration lr-hicir cften
results fron a sprin5;r iloor, a concrete J'ound:rtion fo:: the lathe,
vrhere irossi:;1e, is -;]:te
best anci of part j.cul-al acvart-bage.
llf ier the cracnine iias been noveC to ii;s pla-ce p:rovided, slacken
the J,oc-li
bolts hoidiirE l:re j-el,ls
to tire;r.k-ict-bo';ton.'t:lhen ihen
remo.rInq ';hc s-(:il-boi-..ion from under the 1athe, cilre shculd. be
tarke:: t,hai l:,ire-.
n.Lchlne does not. overthr.ew,
The l-'cli:;hoies rn-clic 1e:61s
prcrr:C-ed
i'ol Eou:rti-n5 t,re iathe, to its
skide f cr siripnert, a:re also used to bol-'; i;o i;he f cundation.
Tlrc f oui:ia',icn E1.;:1
.-l'.9r-:.1ri
bc a::ran;e C -n dilrensio.ns approxinate to
specif ica+;ior:s ;_;ive1,
cn "Pf an cf Forrniati-on". llol setti-ng anC 'bcl-'u-
ing the -re1;Lre
in concrete, ceinent in the f ouncration belts, in oi,:t-
ancel requi-::eci, at -,he sirne t- ne vrhen 1;::eparing 'Llie -i-cunCaticns.
?.2 - LEYELIi\]G
On setting :he riacl-lj-ne c.cvn on the f I ocr ii; recrureei lerie J-ing
accural;e1"\r bef ore beiirg bol be
d o:: grouted in place.
,l-or i,l:is ititpcr'uai:.t operation a precisicn bul-b level .,,'ith a sensi-
tivity of about C.C?nn per 1000 mm. (.OCOZ5
in. per foot) for each
d.eflecte d dri,vision shou]d be used.
TO faCili tol e settins{. f j rst of :11 f nlr rppls'l ,.",ariraA
.lre nl n.eorl
-IJlqv9u
beneath the peiestal- legs in direction of centre line of qachine for
loniJitu-d.inal al-i-qnnentr. and the foundaiion bol-t screnvs aie ,oulJ-ed
Cown to lag the lrachine *r,o
keei, it tight enough to the flooro
lText, r.'lace i:rei:al-plaLes unCer each of the legs at several points
to conpensate fot'any ctepressions j_n tlre floor,
The Le-,.e1-
is ti:.en mounted, ruocessi.rely, longitudinally on the front
flat bedway and iransversally across the berl close to the headstock
and to thc tai-lstock encl
, ancl thc r;eciges are ad
justed in acr:orcl.a.nce
with'l;.h.e readingc of t1ie lerre'l rhich should be the sane at oach
pcini. By rc'peating this operation several times, both the headsiock
anC ta'i isiock e:trd
of the bed ','a11 be lroug)rt to a perfeet.level.
If *"he le-rr:l- is; no'u long cnough, suppc: t, it on accurate parallel
strip,
'..hen ha.,iilir; i)ucperly !eve,
lecr
r f irr.ri-ly thc f alhe basd vil_t be
groutcd thoroughly :'-;ith cement

Gesomtqnsicht
GenerolView - Vue G6n6role
Visto Completo
Typ:
rz280
C
/?60
I g9*c'f-.-=--
Weiler KG - Werkzeugmosdrinenfobrik
Herzogenourodr
- Niirnberg

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@F'JI'IDAMEI{tPLAN LZ 280
1-4 Frurdanentplan - Foundation PIan -
Plnn rlc lonclntion - Planr-rrlo Fonclacion.
a.) Unterbau Stahl - Bnse Steel -
Soele Acier - Z6calo Acero.
b. ) Unterbau GullfiiBe - Base Qastle6s
Soc1e Pieds en fonte - Z6celo Pies cle hiemo.
F- roo;-- -*- :-
i-ii
;n::---:-::[: :-:--l
r--:i_::::::l_:rq_61
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i i il ll
440
iigo
ll ll
iillll
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i-:.::
f..Le- utI
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t4:--.--i56,-"
WeilerKG
- Werkzeugmotdrinenfobrik
Herzogcmurodr
- NUmberg/Gennony
Atb.2

PREPARII\G FOR O?rlRl\fI ON I,Z,.2BO
t.1 - OLEAI{r}TG
Remove all slirshing cornpcund rri-th which 'r,he various finishecl parts
of the lathe are covered for rust prevention, This cen be ber.;t
done tri-c1: a rag satura'ued i,rith petro1 or kerosene, ancl tireri by
','riping off al-l the bright and trearing parts'r;iih a d:y vas'le, T,:
eover al-l tl':ese parts riith a protec-r,ing cil film, go over them
.;rith cl-ean machine cii,
It pays to keep +"he
l-utlie clean. r,aks a good -cractice of cl-eaning
it once a c1ay, and Co it rrhile the machir:e is idJ-e; neyelr';,rhen it
i q rrrnl--i nr
----J.
A snal1 piece of waste raoistened r,rith herosene.,r'ifl ser.re.,;el-1 to
cut the dirt and grease, af ter ';rhich l"'ipe lri th dry r.;r:-;. I'l-Le
,,-,'ays
and the otlier exposed bearings shoulct be especiall;r cl ee-r;bel orc
oiling. Use a stick to ;et in the corners.
l..'hen
compressed air is useo f or rhis pur.pose, cJire s;houl-d
i:e taher,
so that chips &ncldirt a::e not blor,.n into inaccestibl-e1iar''ie cf
the neclianism, Air trhich i5 l:reavr
]y io.aceC i,'i+.h moistultr shoulu
not ire used r;]iere it can a:rs,liace I ubricant 'it+"h t,rater ancl c:ir:Fie
rust"
1,2 - LLTERf_ChT_I-L)N
It is absofutely necessary th;.t t:rc nriich:';re
is tlrororr.rtl:ilri
aird
prcperl-y lubrica-tecl befc're it is cper':-teC-.
See-rrftLsiru-ctions fcr
Luhric.;,tion" and tt;lrSlication Char-tr'.
ITot_e:
Take care to have 0r1 Bath lieserr.cir of tre.riistccr,
hcusin3 the feed ririve slicliniy ge
ere flf leii up -".r'i
ili oi1
in keeping ihe oif 1eve1 L,:iihin rnidtii of siglit g1ass,
1,1 - !NULC.:1-US
Before starting the f athe r ncve tlie carriage by r;he .rgncj jleerl
to nalie sure that:
|,\
(1) - lhe Carriage Clanp Scre',,i,
l-ocateC cver r:acI: oj' t"car ca.ldle
-:,'i-ng, i s rrot tr6htcnecl ;
/^\
(2) -'uhe i]alf-J-ut i{anofe nn rrnn* n€ -'
, --- * *F1ron, i s r:L dis-enflag;td
position (ly ftf tirig r1p the Finger-ti;r ,luick-re -1
easc Lerre::
located at richt sir'l
e of anr.on) :
/-\
.*YLv)!/ '
\5 ) - ihe r,ono-Lever Feel Ccntrol f o:: pouer lcngi-buC.inal_ :-t.:cl
cross feed change, focated in centre cf apron, is not
_ engaged (ty turnini; i-t into vertic;:l position) I
(+) - the Uays tirrougjrour;, and also the l,ead.-*cre-,;i
and. ihe::'cecl-
chaf t , are crled '"c preveni ihe;ii fror r beconiinij rc)Lrghcne
C
and spoiled..
Note: 0perate shif t:ng levers only r:.aeLr
lathe is stonue
q.
1,4 - srl:}TpL.E
lnr\G
Ilever start the r,rachinc blr po1','er
unti I tlre Face Gea;.rLockpi rr.
is in the hole of lhc' driving pulley oi irain spindle arr.dthe
Eack Gear Iiandre, locate C a
t. right side or: headsLocL i r,<.'nt,
is.:iil vertrcal l:osiiicn.

1,4 - Spindle }rive (ctnC.)
Sack-Gears are engaged by putting out the Face Gear l,oek-
Pin and moving the Sack Gear flandle to the left. For shift-
ing this handle must be pu11ed to'ward the operator, until
the index pin fiited opposite at control shaft housing plai;e
is out of the indexing hole provided inslde of control hub,
and turned aua;r io fock it again in a sirnilar J:.o]e.
Feed Drivc Slidir.g Gear, transnittirrg the po.vr-er
from spindle
and pinicn of rnain spindle to tiie pick-off change gear train
and quick-change gear box, is controJ.led by the left bal-l-
lever on headsiock front. ,'Jovinc the Feeci Drive Control
engages the feed drive motion.
Ieed F.eversal is operated by a slidtng gear enclosed in the
quick-charigc gear box, and i s con-brol_}ed by ihe lower handte
on left sicie of .gear box housing.
1.6
-
l';iOTCR
Al.{USTl"ii,INT,q'OR -qti,T TElitsrOt'irifG
ilhen regularly nounted in headsicck section of lathe base, the
motor is fastened by zi hexargon bolLs to a hingecl plate v,rhich is
provided 'rvith means for aCjr:.sflng and maintalriing proper belt
'{;ensi-on. Ad
justment shoul'd se1; so .that beLt sLippage is avoided.
See af so Instructions ancl )r.rf tins rrl)ri
-;e A...ranrlemeni'r
a.nnexed
to suppiement.
n
ll'h.elathe, riren furnisleed r;r,itir mo+"or factcry mounted and sl,ritched
reaciy f or conne
ction on service line, rr.icludes protec'ced internal
tiring fron tke rnotor to tire reversing sr'ritch gear, being buil-t in
the bed c:rsting at taiJ-siocir encl
, ancl from control switch unit to
the terninal box l-osated on tail-stocic end side of pedestal belov'i
the chip pan.
srdtching on to mains is dlrect by connecti.ng ilre inconing three-
core cabl-e to the termina-L bo:c connectors marlcec R-S:T.
To give comrrl-ete r,riring protection, it is advisable to rnake supply
linc-i instaLl-ation in usirrg ftexible ano liquid-tight metal conduit.
EL.ECI'RI
C COOL-IiI\TT SYSTEIJI
t.7
-'r,ti-th
the models mounted on cast-iron pedestal base, the tailstock
ccL:rnn is designed to serve as a coclant re;;ervoj-r and has pro-
rrisions at its right s-lCe 'uo
be equipped t,,ith a flange-type motor
purnp.
r,.rith tlie rnodels on stee] cabinet stand mounting, a separate com-
partinent at tqilstock end of base providei to take a portable type
coolant tank, made from sJ-reet
steel, irith self-contained motor-
pump.
rn ej-ther case the 0.1 HP motor punp of the rotary vane irnmersion
type has built-i-n toggle s:;,'itcl: for stop-start control to give
i ndependant serv*ce appli-cation.

PREPARTNG
FOROPER]LTTO}I LZ-2BA
t,7 - llJectric Coolant System (ctnd. )
liihenordered.
r'rith the lathe, 'uhl3
;oofant system is supplied
faetorv instatled and ssritched on to terminal box. Equipnent
includes necessary piping and fittings'
i
..The
motor coolant pump must be checked for direction of rotation.
Tnnnrroni rerra1ution of the rotary varie '.,,i11be ildicated by
failure of pressure 1esulting in misslrrg the coofant or cutti.ng
oil r,i'hen
opening the piplng cutlet, Correction can easily be made
in changing the connections of core e4ds switched to the terminal-
box.
Caution: T,ilren
using.coolant or cutting oil for "vhatever type of
machining'operation, care shou-1d
be taken tliat it vril-l
be of non-acid and non-corvoding propertJ,es to prevent
the exposed sli-ding surfaebs and other vital nembers of
the lathe from rust darnagps and ;rlso the palnt from
descomposition;

CIIECKII']G THA LATHE FOR AJ,TGlil.IiilIT
TUR}IIUG TEST
If a sufficic'n"bly sensiti-ve precisi-on bulb ievei is noi availabl-c for
sutr.;ing up ihe laihe aecu:rately, the level11ng can be mace perfect by
r.raking aTurnirrg Te:t r,*r.icli, trith the nachine having been bol-ted clov,m
stlcurefy i.ut not grouted in p1ace, shoull be carried out as fol-lo.,rs:
A piece of steel- bar of at least J/Qt, (ZOnm.
) diarneter arrci
about
1" t"o 4" 05 t" 1oOmm.)
in te6gthr'held in the ciruck, is turned
lri*uh keen tool bit taking ar;v€ry slight cut of a fine feed,
i'ieasuring the Ciameters at both ends crf the turned piece nith a Ciatl
inoicator, mounted, on 1;he carria6le in horizontal iiJ-ane to the .,-;orkr
the reading shoulc be ihe saiire. shourd there 'oe any difference, rh"e
inciic;:iior'rs are tliat, dne ro faulty lc.velling, i}re faihe bed i;i1l
har.e been caused to tnist, thu-s threrving the hea.Jstock out of e.lign-
inent rith the bedways and resulting iri 'r,he l-ail:e tui'niiig tapu-:r., (Ta.<e
carct ab.ove all, to ascertain thai rr;edg:es
or shi::ns r+cre places u"nder ti:c
nachine correctly and the nachine ,.r-ias
not bottcd dcr,'rr too bi;ht. )
I{ecessar:y corrections can i:e maCe by adjusting tjre,:Crli;\?lL,ltl
bOL.lS in
tn.'Cast Tron Lejjs (or, l;ith bench-t;rpe lathe r;:odel-,
in the fect of thc,
l-atl.c 'ui:C
) . i--i-
ad
ju.straents arc niade, -ireck by repeatlng tiie tc,;t rl:iti 1
jraii ";j::e
diff.,'rence betl.icen both ti:e end ciaine'';ers cf the-Lest piece
lr.zrre becn e
lininated on t?re Cial ind.i crttcr readirrg,
I ^\
(A) Ir' clre ltll- 1T.,lll .r\TT]1; PRJE ii}ID is LARGi,lii tl:,an tira-b at ihe chucked
end, it shoul-o, firs:t, be iiehtened tire 3ol-t Ai ,.light Corner in irro::-r
of ireai.stock End and, if nialalignnent is co:rsiclerable, ai-so the bolt
;rb rlgilt corner in back of tailstock errd:
/-\
(lj/ r-t" t.he DISjtlilTi,jRAT TFE FIfEE ENI is SIviALLER
tha;e that at the chucked
end, proceeo in a vice-versa manner, by fi::l-t tighiening the Boit At
Right Corner in Sack of Headstock End and then, as far as necessarye
the bol-t at right corner in frorlt of tailstock end;

Sdrolrplon
- WiringDiogrom
Sdremq
des
Connexions
Esquemo
deConesiones
T'P:
tz 280
LZiln
o) Drehstrommotor
mit einer Drehzohl Moteurdlectriquepour CA triphose
ovecvitesses
de broche
Eleclricol motor
for 3-phose AC
supply
with
spindle speeds Motor trifdsico con velocidodes
b) Polumscholtborer
Drehstrommotor
mit zwei Drehzohlen
(Dohlonder-Scholrung)
Twospeed
reversing
molor for
3-phose
AC
iuppry
Motor lrifosico de conmutodor de
combio con 2 velocidodes
Fig.3 I
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I Weiler KG
- Werkzeugmosdrinenfobrik
I Herzogenourodr- N0rnberg/Germony
{

Lz-2BO
CONSTRUCTION
OI' LATM
4.1 - II-8ADSToCK
The headstock houses the main spindle with its assembly parts
and the driving pulley *o..ii"al:tit" l""a gearing and the feetl
clrive gear necbanism'
Thet\{ainSpindlerevolvbsatbothendsintwolargeanti.friction
bearings, ;;";;;"i-"ttti"a:o"-in* opposedl Pre-loaded iligh Pre-
cision Tapered Roll-er gearin;s ana a,t.rear on a taper-adjustncent
special style alloy t"onze--gl'ia9-t"i111i: tn" antifriction spindle
mounting compensated
for exfansion causecl
by temperature-rise'
Sotir the front and rear 1"""i"g" are ad'justable for endplay
elininating'
The spindle, hollow the- snti're lengthl is bored taper at the front
enclandisprovidedwith.','-int"e"arieattoacceptpush-type
colrers "; i;i;;;"izii**ll-""p""iiy max.,dLnectly,
or to receive
draw-in type split-holdins-;;;;;;"" it l/2" (t1n'o;) ".p. max' vrrith
the use of a reducing sleeve'
The outside of spindle nose is threaaea and provided nith hieh-
finish centering registerl oi cylinder design for accurate mount-
, i:rg of at'',achnents, such ]'"--j"#tr'l9k? f3"" plate; step chuck
closersr or a pre-set "'o""-tip" collet chuck attachment'
Note;TheSpindle.t{oseThreadiscutv.rithaslightclearance
'w'hich is of no influence in respect to the tru€ running anC
vfork:i.ngaccuracyoftheattaclrnentsnounted'.Thethread
serves only to "".o=o--lne ins:-ae threaded attachments to
the spindl-e nose, whilst their correct and accurate align-
nent is given and naintained through the centering surfaces'
to the roain spindle pulley is transnitted' by V-belts
undernea'tfr beift:in ii:ternediate countershaft and the
Gears having a 6-I'o-1 reduction ratic' ar9 engaged by
fever on headsto"t'. ftottt to obtain the slow spindle
The notion from the nain spindle to the pick-off change gpar
trainando^uick-changegearbox.istrans'itt"athroughihesliti-
ing gear carried or,-
in"u-r"ua drive stud shaft, 'trhich is located
in a sepa"""" """tion of headstock'?ld-r"rining in an oil baih'
The feeddrive sliding gear is controlled by the left ball lever
orr-i,u"a"tock front t6 position rtINrr or r'OUTrr'
4,2 - TETINING& TITREAD-
.TheSeeding&Thread-CuttinSiiechanisnincludesthegearing
the nain spindle to transmil tne potiorr to the carriage and
sists of the pick-off cnange geq t:rain at headstock and of
the quick-change gear box, "thI leadscre$i and separate feed
4,21 - QUICK-CHANGE
GEAR
BCX
ThecastingofQuick.ChangeGearBoxincorporatestheFeedReversa].
Sliding Gear to qelect forr:iarcl or reverse operation' and a J-speed
sliding gee,r blolf-""tti""cl -u,,ith-a-6-speed ieed-cone of gears r"rhicht
by shifting two i".""", rtake instantly available a coarse ratic
ranged selcction-of 18 feeds, f""eii"ii"?l.ofr'OO1!il^to'o2OBu,(of
.OJ6mnr
to .
!28mrn), cross of 'oo1ii-io '0r04't (or "(1"Bmm
to '264rnn)
'
The drive
from the
motor.
The Back
the right
speeals.
from
con-
bed
n
shaft.

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CONSTRUCT]ON
OF IATJA LZ.2BO
4.21 - Quick-Change Geerr
Bor: ( CtnA. )
and 18 screlr threads (4 to 2g TPi). ft enables furlhermore io
nhtsi n irrr n:rl rr i ntpr.chznrli nrr hnth i:ho donondont nnmrrnrrnrl soi?c
erre vvyvrruer! v vvlryvt^:rv e=uL *
48 and 2{ tooth posi'uionecj in the feed gear trai:r ciose io the
quick-change gear box, another selection in fiiie compound raiio
range of 1B feeds (longitudinal- of .000J" to.0052'r, c::0.01lnn
to 1J?.mm
- cross: of .000{" tc .AA26t', or O.OlOrnn
to C.C66nr')
ancl tirreads up tc 112 TPI.
fn use of a set of '1
2 charrge and eonversion gears, si,'.ptslied,'.,.e
dtandard equiprnent ii'ith the l-athe, a ful} range of corn-nonl;.
used Stand.ard American, Cnglisn, lietric anC irlorii.rletiir.eartis can
be p.roduce
d.
Seleciive finesi feed ratios vithi-n the fine-compounci range per-
r,:it exceptionally high-fir:isl: cuts to be uacle, eliminatinri i;lte
necessity of ereplying subsequeni nachinirL,,; operr.i;ion-s in tiu,iuelrcrLr',
+,,-*-i-d -.i^t-,^
UuAf rAIIF J VUL-.
3y tiie provision of neu'r,faiizinil tire gear bo:c iaechanisti -uhro..t€ili
1-1.:s1 gear ratio eilgagel'nent a:-iy threaci pitch';ritirir-r. the ca,oacit;'r
of ilie l-ai:,i'.e,
irresl.lec-li..r,: of systen ancl.
ii'standard or_,,tcn-
star:darC, is niade possible tcr be cut j-rr use of correl_.::,ti_.;c irick-
nf-f- nhrn cct (r.a.1 T^ -- -'l -i
^,1 -l - -iL.^ f onrl roar *r.ni r1
.
vrf uirol!5s cs,_lf o 4ypf t!;u iri ulrg .r vtju 6gdf Ll- cll.
Fick-off ..teere f cr additj.onerl or speci-al threads can he fu:r.lii
sher.i
on e:<tr:a order. See I'Feed E; Threa.d Chart " .
h srnal-l lrrdex Flate on ge.tr box housing ii:d.ic.:tes ihc rr,r,-,clc1;i
a.-'rn.i-l
lr.hl e rr-itnhgg Cf tjf z'ead. and t.he correcnonrl i h - -,'^^rr1"
+ .\r'-
vvr r qrilrvirltlrrlj arlitl:ull u ur-
feecl
. A complete I'Feeci
& Threacl Chart" of sheet meiai :is fix-eC
iirsi,le of tire hinged colrer protectir:,9 tlie ciier:.:;r: gei,;: l.,,,crj
tr.i-:n.
4.22 - Pr9K-OFF GtlitR Titr\fN
The cletacl:abl-e pick-off gearJrr;hich by ccrrbi:rai:i-on in r,,suiii::fI
train as incicated on the sel-f
-re ading Feer-1
& Tirreacl Cliai:t,
fu.rnish the desired feed r"atio, have: key*cir.ive bor:e iir::cughoul+.
f or i::i;erchangeabil it;r end arrl sr;pported on stud sher
j'ts cr
rer.of ving; snaf .bs.
The feed d-rive shar't, at:rarrged i.irectly t'ciov ttre errd ci nain
spindl-e, and the riuis1';-sia.nge 3ear dr:ive ,:iraf I l:ai'c ke;r-driire
shaft encjs to totate tiie change gear$ at'i;acheci.
The gear"s fcr compcunding are mounteC in use of key-c1ri-..'ebush-
ings onto s
tud shaf ts, one of r:;,hich is carried b;' ii q',;..'rur:rirt
arranged to pivct on the feed drive shaft bearing and ilav:-n.gan
elonrratcd slo{, in.;rhich tj:e stud s}-,aft ma.r'ho p.-ri:'-*aA-r^'.a--"
urvrrb(r v!-q of v v J-Jl l{Iil-UII t.lle $ UU* ,-..** -- l,JJ US L(jQ .,O ,-,JfL1J_ .,
the various gea;s to be interchanged to prcvide tiie reqr-rir.ec
ratios.
4.23 - f'tiED ,SInFf
The splrned f eerl shaf t, arrallged along fl:e b:rci
, lia.nsi.rj-tc t.i:e
moti-on iry .,,'o"*-.nd-irorm-',-rheel_ d.rive to either the f'e
ed.-rack
pinion in t,'ie apron, vrhich meshes vri'uh the fecci raclito nove
tire vhcre carriage, or to the cross-f eed pi-nion r';hich-
i :; ke.1,*ec
to the cross-feed screl;, for automatic sl_iding aud su_rfac_i:ig
operaticns in either ciirec-i,rons.

CONSTRUCTTON
OF LATHE LZ-2BO
4,21 - Feed Shaft (Ctnd.
ft is fitted r,tith tight
coilar rrhich can be set
longitudinal- feed at any
By provision of a safety
design., located in the
spar hnw. rirnto4f,i-On iS
4,24 - TEAISCRE\.I
and stops and has an adjustable stop
to stop automatically tire carriage
desired point.
slip-clutch of' spring-loaded key-drive
eno. bearing of feed shaft at qu-ick-change
assured against overload,
The Lead Scre.ir, rihich is precision machined .,rithout a spline
and extends along the bed above the feed shaft, transmi-ts, by
closing the half-nuts, positive motion to +"he
apron and is
excl-usively used for cutting threads, thus preserving the initial
thread accuracy of fead scretr for long lasttirg dependable service
At, the change-gear box end itre l-ead screlor i€; taken up in, antl
fiited to, a connecting sleeve v.'hi-ch
is carried on and driven
through the split-pin secured cone-gea-r siraft. The split-pin,
aaf i no rc r agfctV she,.r-nin tO nrewen-r the lead SCfelr and the
l/+ia
f eed hox .r"eaTins frnm nrrarl n=d anCl aCCiden+;af dameses - 'j
s rjri Ven
u L(rrG 5v u 9
in a bore r".hicii passes througir the lead screlr ccnnecting sleeve
and the cone gear snaft,
:l,t the iailstock end it is supported by a rigiC brackei and j_s
heia betreen a shoulder ano the adjustirig and }ocking nuts, riith
a +"hrusi bali bearing in each siCe of tire 'cracket, providing
a.cci.r:ra-ree-C;lustment tc ellninate endp1a,y.
TJ''a ,-loe'i c- nf -l oad c^?6ii' i nnnzng3gies an exclusi rro - rrnlrr.rJr-l n
jrvasvvD air EAU:4DIvs, vatuovru
fee.ture in that it is constn:-cted in such a way r'lhich enables
ic pl ass it the 'rends tr-:.rned o.rerI r,rhen r,ior.n oi-rt on one side.
lJOte; !g invgff, tho I osd e^?ar:.r nrn11ped ns f nl l-OVSS:
I':-rst, Cisengage the half-nuts from nesh liith trle lead
screlr. Second, loosen locking and adjrrstrng nuts.
Third, reuove the lead screv; bearing at tailstock end
'by unscre'wing the socl<et cap scre'ws and purrching both
the alignnent pins. Then, rrl_thdrar;ythe lead screr,;,
exercising care so as not io damage the lead screr,r
''uhread or the thrust ball beari_ngs.
l,Jhen
re-assernl:ling and adjusting the l_eard
screr; in
al-tered arrarrgenerit, have the parts cl-ean, set up the
screj/vs, pins and nuts tight enough, bu.t not too tight;
talce care to fit the thrust ball bearings
properly to give accurette running fit free fronn end-
playr but not tc have too much pressure.
4.1 - CARRTAGp
The carriage, vrith a ..t-ide
cross bridge carrying the cross slide
and the cornpound rest, has }ong bearing surfaces on the bed and
is guided by the compound angle flat-way ir: froirt and the rear
Vee of conbinecl dor-inle-l-ee !/ay in back. A vee-gib of ar,rple
dimensions rs provided the entire length of rear V-guider,'ays, ad-
irra*nan+ l^^;-,-'r-,. -^-*^ ^q ^ -^..*L^-^ ^; ^^-^..^.
J
up u'rvii L. usrJ.r6 uJ LsurrD v! o rrunb€r cf screr;.ls and lock nut,s.
I
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DR]VE ARfIANGEJ"J.CIiiT
I}ISTRUCTIONS --1:":rc|lll
a. Jra :, i-_ :
' ! \--.- -'. :
CONI PUT,LEY
TRAIN V-BELT }RIVE
The principle of power transmission, irvhicii.
is 'reed :-n "tiiiilEIi" J.iode"l
LZG-280N and lVlodel IZU-2801{ Lathes, inco:pcra';es \i--be1-i' :one '";:;-i-i';;,'
driving from the notor through an Inte::ne Ciaie Ccr;,nielsr:cf +u
3-lseai1,:v-
unit, arranged in pivoting arm rnounting and rrnr-iing i-n ';wo pi'cJr-ra'-rec.l
precision ball bearings, to the nrain spincile.
The drive is by an endless Ve-3elt, size 1f 2"x1c"t \ing iilxiO'-l'C: ilrrt"
UnIlf
2215)r fron the two-stepmot.or pu1ley to.c''r;i:Lie:rs't-"'';!\,
a:rc i':-
another endless V-belt, si-ze lfZ"x59" 1or,g (lix',5OQnn:)il'l 2;'
1li
;, j-i'..::
countershaft to the three-step pulley of nai:L :prlr.CIe" p.rcirlr'ti::$ ii
open-belt driven and.6 back-geared spindie sp+eis.
A 1,1 HP, single-speed, ball bearing, squirr'e1 c.a1?
\.:r'.jvcJ3gi:1';
t.\i'
j;';;
l-phase AC motor (llOO rpui-!O cy., or lBOO rpn-6i-rc.7,
) :-s ::tan'.lard
equipment, The motor, Iocated in the rve11 .,'errtj-1a"l,ed
sec-i.'ro::l
r;i-'l:i t,ii-
base, is mounted on a hinged plate near the flcor-.'
Control of rnotor for start-stop-reverse spinlie opela.l;icn j-s i-' :r
suitable reversing switch which, being i ncor!o:a'r'ed in ta:i-ls'"c''x
end of the bed, is actuated through a control:od operati-ng ir;-1-.
1ever, locateo at apron.
-sPEEr__Qru,
Speeds are selected manually by changing the belts cn con-e pu3lcy-s"
from main spindle to countershaft and.f
or front coLiirie:'"shar'i; 'to .;")-c-r:
'
The reading Speed Chart placed at front of heqdstock, sl:c,l'is
tile;c:-1i1.-.'
Revolutions per tljinute available, and the Iei'bers ani, nunbe:rs iiili-'r-:':.-,i,c
within the Drive diagram thereon refer to the belt posiiicns j.':r::;ei,i-':lla-:
the 12 various Spindle Speeds ranging f:'on JB '"o 16'JOrpr,,
ADJUSTT.JS]rI
0F BELT TENSION.
rtrho
rtri rrins hol ts ry'o nr"onerlw te.nsi oned hv n',eans of tit', 3e..t I er-:-L':.'.:
ftrs u:Ivfrl6 orv yf
Adjustment Screw (D2) located at the hinged l,-r-.;ol
llate (li anlt ir-s'':c'
for clamping rvith'*oior plate Set Raif (lt ), the end of irh.cli j.s f .;.'tc:
t;sith a loeki ns notch to catch the motor pJ'atc ''lten i'ritlr'd:'al';:r'g :i-'; f i.u;
belt changing.
Adjustnent should not be set too tight) bit oni.y'bo gi-ve.'ii.',st e,:':uri;:r
tension to take the cuts without slippinU.
Caution: The iveight of the motor must not be i:l-lo':reC'fc serze fc,r
tensioning the driving belts. Pu.tt.;'ng be-:-ts u-ndcr ico ::ru',h
tension, will cause the belts to s-rre-Lch ani q;ve::loeri i;::r
ii
bearines of both the motor and the intermediate couJl-til-i:,,
shaft.
Both tb.e V-beLts, made of hi-gh-quality rubber composi-tior, '"i li
i *';t:nc1
heavy l-oads and get a long servide lifeti-rne e-,'en in coniinucus r.'-r:3',.*,49
operation. fn case of replacement, the upper bel-t for be-i-r:3
ta.lcen c-t'i
requires the rnain spindle and the back gear shaft to be clisinr;un-b*r" .fii;,":'
tbis purpose, loosen the adjustment serew and withdralv tlie fio-i't)i' --'-'.li;rr-
until it is catched from the locking-notch set rail, thus :'elnasin3
the belt tension automatically; then proceed as per instru-ci'ciis:;-{ir'crl
in addition to drafting trCross View of Heqdstoeir''.
l\cie: To avoid the V-be1ts of becon-'-ng :rb-;:d, see .i,h:t n'r Il:1.
Iii':i
or oil- sets on then.

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,:O}TS?FiUCTTO}I
CI L.{TII] LZ.2BO
4
.'.; - Carri a.ge (C'"ne. )
h Clarr:pinal
51ock ioca-,,ed ove:: back cr'rEar guide','iay and conirofled
l-r;y-
a qu.i ck-ac-u
j oti scre-JI ha,nile n enabies "1re ca:t,':_age., to be clamped
in an;'-
pcslticn f or f aci n6 anrl cur;ting-off operaii otis'
Tl:e movercer:-L
of -:t-:e
ca:,:riage l-erlgi,hr,ri.r-;e
o-f bed is'rly hanC anC by
pcr,,'er, -,ir::ou6h '"he hanci;hee1 opelra-tec pinicn ri:ck gearitg or,
resi:ecti.reJ-y t,ir.roush t,ne fecd. sitafl; tto-rin drive or the l-i:ad screl-i
l-ia-l-f
-fiir; ci.ri-vc in 'ujlo ';:,cror:.
to '::hich --t is attacilei.
1,11 - i--:.r.ou.'g";q:-
The cOirrpcuncj::er:'r;
is of SiiirCy Cesi-g:L-bC
assrr.l:e
acCuraCy anC rig-
irliiy f or nierxj,nult
cu'ts ',rlthou-'; ci-ef l"ectioir. The Cross ijliCe r sup-
port,ed on ei(r-r-etnely iong 'ire
a::inil sri::'faces, and. the 'i'op slide irave
dovetaileC. guide., a..,.s
;11i3-
:lrc jli -utcd riiti: f f ai, gibs, l:e::'ng a{l.just-
ablc b;. a nunber: c-.f
jlerLdlc
c: ;icri-i.-3 a.ild iccX nui;S, io proviOe
neal-ts or proJte_r acL
ju-;tr:rer.L"i;
ar:c taire-'J.p f crli'r'rc,."r, ?hc *,op slidc
i.cr.rt hr-iving,-r 180-il,-r;]rcc s.i;i1i.1 .!-.i"sc,
i.ri clampi:C i-n posit'ion by
a ?-sl c-r, dou';1c b-i:rd;:: f rlck. ir;l clcr;ice "
Tlrc i-ar.3e itigir-vilibiitty, z.c!el*ierf,-,in!t r.iioxoitle
i-et. colJ-i-i.r:s, iriivin;
fi:icticrt f it adj irsta'rrie by a ,32'ub :.:rCTt.:i'
allcl a slri-'-l-l i-;r€iSsj pln 1n-
sijrtteci tit: i.iie :ir:,lclu,,:'teC -r:ii:r, ;;i.;c acc'-i1'11.j dlrect rel',rj-i-n3s in
terms of iho,-r--=a.ridlh.s
of l.n I:r-c;r c'r' in ':
f ?C';,hs of 'r ilili-rncicr,
1 g;-r
pc c i,:
r'-v r.-Ly.
4.i2 - nj,,195
Thr: r\protr houscs -illc ',o::i:i*anci.-,;.Qrlll-.;ilcei r.i::j-ve 1'1{'l.lle t-urrblCr'
g'c
-.-r-'ing llo.r tra,-rsnitti:t.{ l,iie nc'ticI: f i:oir l:}1c s p1i-ncd' f cer-l-
sl::rf t
tc tho e;,;,rr:iage f or pct,re
r: lcngi-r.udinaf .'rnli crcs s f t:eCing, ancl
-rnc lir^'l
f -nuts r,,hicii a:re iinj.Ll:ed i;ii tl:, j;i're l-e
ad scre'.; -,ii'ren eu-iting
thlca.cis, anC :i1"';o cont;i-r:t ii:c ilirilci f c'cd pinicn--ra-c]< driv: f or
rlan-;al- Sengi trVe and. clui-ek-.:c-'-.-i
Cn n':,'-!iOn tr:a-,'CzrSC Ol' car:ri aSe .
Tl:c fie'J snaili \r'ori1 crive is enEilgcd b1' a -rcno-Lriver: (lontrcl in
ce
nt:re c'!' al:,roil, 1;r'riit'i
t iring cruicii f ced cLl:rl3e 31 133til po',,rer
iongi't;'-rr1:..nal- at:d c::oss f r:e
c!.i-ng olrelrat,ior:is.
iilcte ; l'iircn iiie i..'o';;er ireed, .icr'to-Lc:ve:r is vcr:tica'ri, it is i-n
-....---_ ti,..: t'idie" posit'l en- Turnir,g iile' conirol l:iir,ncle i;o the
ri,lh.t en6agcs t.!rc po,::er'1or-r:;itudin;,1 feecr' drive -
turninr.'rhc hi-..iirj.Le
lco tile left en;;.;;;es ti-re lloi.rer cross
llcect drir,-c.
fhc cxirl-loir; !lalf-}iu-'r;s; ' a!Yan;Jed i:l i:ln;c-jcint s"vs-;u-ii1
moantil18
of node:rn, e>lcli;sivr: dv5'i ,rirr anci ha'r:ing carrr-action control ) are
ac+'uatei b.;'a 1a:::1c snap*lock Eir3agj-ng Lever, located-;t rigir+
on i.ron.',; cf :rp:lbn1
EOtll t:.1 CrC;r; ell,-, 1Ci:t irj-j-ii'--g 3;i-,; Ilre ll'rCVeiii.)Iii,
-i;1:.rO;r;ll preCi'-:rOn
cu^'L t:rrpezoicl ,-.i-f crt'r f ,:ur-'i
::ic-lril-.rS
airr), a1lo;V bronzc -ilu.ts. il'iic top
srjcle js cct,i;r;11eci;i-ra.nu'r.i.i;,,':.;t
il:o cll.-,nn:
il:nd.l:. Thc cross'l slide
is ilovcLj iy llar.i:i .li.:l i:Jt r-)c1"ell:
l-n el t'lrcr Cii:'r'lc ii oLi" and -r.|rc crcss
f';er'1. sc::e-.,; ig 1-,-if
iri cli-:rj
i1:.r;.rt
i,i s;-1.,'i;r gl;oiJ 3luir:il p.r:evi:n'Lin3 th;:
C1i'-;:, ,.
f ;C ., j'-.:C,1i
l:U-,1::ii.r.-:.1'i :--.1 ';'. 1-r'1,r..:
c:-: n ) 'Jl' -r: l :t-rOtiOn.

a
p
a
p
p
It
p
It
p
p
I'
It
It
It
p
p
It
It
It
p
p
tf
F
p
tt
It
F
p
F
F
t,
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tt
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b
tl
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4"4
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CCi'iS?RUCTTOl'I
OF iATi{.[ LZ-?BO
4.12 - Apron (ctnd,)
Tiie i:i:.if-i,iut i,ngae,ing Le-rr'::rs irr+,eriocicec'.rrth a snafler finger-
toach qir-ack-action Release le-rer located, at rlght side of apron and
ailor,;s 1_.osi'uive con-brcl -ic cu'b the leaid screr.,,r
diive i-nstantly a-t
af l- i;ines,
No'Le; Tire r-ra1f-Nut Engaging Leve:: r hcn ,oultec 'bor;arcr tire oper:atcrr t
cf oses the haiil-nuts and engaSes iile lead scre,,u.
cirive.
Di; engaging i s by s
ll giit ti ppiirg the ,iiatf -.{ir-i; Lii;i
ck-Re le ase
LitV_o :: rJ,]-r\,.€iI-G
.Abr-ri1t-in safetlr inicr.l'ocklng de.,-ice prevents tne sinultaneous
{?.nr'a..sementcrl tire feeci shai',. irive and Ii:re leaC L]crc-ii half-nut
d-r-irre.
T_AIISTCCra
'llhe'ua.iJ:rccK, lrupporteci by the inner flar; way irr f::or:'; and the
tcp-r./ee of'conbineC ocubre pri:;inatic,guiCer;a;r iii back, ir-a,s:
l"et'er'
con'lro--L1e,i. eccen'tric'l,rlcl c-r: c1.:;.lipi-l'i3 ri.cvice for qu-:icii-ac1;i-":g
;nor;icn 'r,o anC clan;-in3 in any- pogrlr"r-cn of i;1-re
bed'
?ire J:alf stoch s?i:t'iL.e, sec:l-1'eJ-y ainci r.iuj c1'llJ f ccir,-'ru-L':
i'y r,c:.lis of
a l.',inci er scriei'i c..l-attir:
i..,.ut, has a k-ei-gur icied ;r.1voi '-rf ) in. (tlOnn)
anrl rS bC,rec al,rJ irround +uC;
i,ake -i{O.2;r.cr:e Sl:rrkeai ce.:f".;re
vhich
-i,s :;c1.ii-e .-,reciirr-ig. G:r'itcl.u,a.tic:-rs
Ot 1;he slli.iliJ,r; are i r 1f 1{'ins c7' an
f rrch (o:: in -.'iii-lmcte:' *"e
]'it;-,ir
re specr, lv'cly). i 1, i3 riove''i iri and
crit i:y neen:i oi -:j:rc itand-;iieef ',.hrch i:r ai-..
l,achecl tc-' ti.e f'ecd screl;'
f,-ng:a.,ginl a tappeii r 1io;r b:rrO-rize
buSll i;^r-';ericC. and secu-recl by tivO
g:rui: ccici:;rrt irt ih:., ir,'a-:: cf spinCle.
3y set-ovr:-r' b{1!:rC -r-'j
ji-r;t:r'';ri'. i:r'1r3l.i:l rire i''rcvic'e'i f c:: turLril-rg s1i-3hi:
,.;irl-aeite
anCl iOi: -Li:rtt-:r1 t;-p r-,itt ';il,ii^'-,'uOCl'l;ri-uh.'"he Cenr;:lC-ii.rie i.r-i'
t,hc, bc,l.. tnr: bi..ra'Lli: ;c:lle1l , ;::or-irJeC lii tailsiock c:ncl-be 'uv,'een
'icr:, r;",i. cot,tcq 1,la.tc, fcr Eec.r'ing argrl.'li;1; fai:raf cisacijus'Lmenit
nrl$-t ije locseneil bcicre, ilnd 'lrilhtertcc'l- -':ite:: eacll cett,irig oi
sc b-o..,'er aci
ju:-'Li.nl. ccre-i.'. Tlier desj-ijn oj' +uailsl;oci': pi,:l'ni*us bhe
corr.i-.luncl
rt.;t tctl sii,le r:o lre u-seii parall-ei io 1r;
'
iiherr r,r-si:'rg;ei haiiii 1c',i.;y' r;perateci l:oril,:{ s,f eeve at lachr,rent 1!'hich i s
a.l-;,il:i,l-,]g io:. prccii-r.c-L
jicn ',,-,:rk a: tj
xir '- jqul-pnent, iile iLanil-:'hee1
:Li,ci f ceii Scucl:,,'
cltcr:, leci- spindie a-",seL,:iiri).is reniovcci fro-n back Of'
liand.;l-ie
e1 sitie, -Fcr r.his l)r;rpose , 1.ooe
rrrt the sp'i
ndlc lockin.glever
l1e;';-t u1tScrCxli tlte 1 cOi;r-:'uersulti! sCr'e.,us Cf the be:-:ri Ila (,ap t.ln tail-
s';Cck- eiltl a.rLd
retract 1.]ie vhol-c assenb13., f iriLlly unscr:elu lhe
iie;v'-guide -qcre\i,' cn bo';torl cf' spi-nitf c jl::on+, cnd "
.i)RijB
The Crive t o tire si;ind.le i s cbtalncd {rciil thc' rnoi:o:: th::ough -
depen,ling 9n the t;,'pe o,i' ]a.'che - ,-
i tirc:: a 6- s
tep 0one Pu-liey Train
lri-;e r. or r-r.n
inf iniiely Va::iab1e Speecl )rirtc eqr-'ipmeni, respec'l-
ivcly. lic'.er tr:::tsrnission ii bi' V-bel-ts.
Tlie ltrotor iLl opcra::i-0. bJ a "con-brol r'od 'rhich extenCs along ihe bed
bcfcr,r.t;he ap:con an,l ac.bua.1,cs
fitrouSh a ci:ait1-and-spl"ockei-inheel
r'lri.re t,irc::evcrsing controi s'',.-itch
being buiil i::r the cxtreme of
bccl cast,ins at taii-stock eriC.

CO}TSTRUCTTON
OF Lr\TIi.B
/^, , \
4,) - lJ3]-Ve
\Urn0rJ
The control l-r:ver for start-stop-rcverse rno'Lor
opcra.tion is
nla.end on ri slrt si de of enron bottom r,rithin easv reacl: of theri
r vrrr rr v a!J
nnorq*nr /rf,U+ - aa-a4-^l -^^ ^^:,.;hn.-.b+ ,l^^^ -^+ -^-'1,, +^ T\ ^
v}jsr @ vvf . \ f rrrF uvlr ur ur f, uu trLf uJ-IJlrutl t/ u9g5 lru u JIJIJIJ t,u l-le vr
suppry/.
tr'or detni'l .c nc'rta.inin.ry to drirrc,onrrirrmnr* qco lrpft-inc rnd
Insrtructions t'Drive Arrangemcntrr alnnexed as supplemerr.t,
LZ-2BA