:A PPROVA LT R 

„i . .,

APPROVED FOB 

. , 0„,..si a 

TCPliin

u 

NRO rlDLE VIA D 

Flf1-91Wit. LY ecttrrpoL SYSTEM ONLY 

. APPLICATION ; 

NEXT:.' S.Y. ;. USED ON 

'v-/-e-2-15-20/ 1C:).../:,,p9, /A1174q4. Rezex) 

53Vt., 1255 

Cy 

REV 

SHEET 

REV STATUS REV 

OF •SHEETS SHEET / 2 3... 

UNLESS OTHERWISE SPECIFIED CONTRACT NO 

TOLERANCES 

ITEK CORPORATION 

LEXINGTON., MASSA'CHUSETT,S;-...021' 

.00 

. 000 

ANGLES 

DRAWN 

CHEt 

FINISHED ! 

SURFACE ROUGHNESS p 

CENTERS PERMISSIBLE 

)4.tleve 

0 ECT A D DWG NQ 

DIMENSIONS IN INCHES AND 

Apply AFTER PROCESS SHEET 

v ita 1.n.. 
.13 

NRO APPROVED FOR. II ° IL:C.:NI -A m :A aiun, 

I- EL,720-‘o ,rwL:1 

1 The k-rotator a asornbly should be completely assertibled.. e sbould be 

taken to adjust all mirrors to design dimensions. 

2,+ Install the assembly' or the alignritent fixture (14(1359(2,1). , Cam's are supplied 

to position the asSerribly and the alignment equipment snugly against the lbcatthg 

edge..of the key on the fixture: 

3; Install the target mount Fixture (141' 11,P1..) and mount the af.ljusta.ble mirror 

target (V. & E 716240). Install the con ering bushing 14) 74T1) in the threadp4 

hub of the E fixture to facilitate, centering of the ta.rget,. 1 he bushing should 

be threaded into the hub until it jUst flush with cur1ace of the hiii;; Remove the 

keepers from the magnets on the fixture before installation: 

4. Install the alignment U.I,sr.ope ( a ylor-)iobsbn 112/63643'1 in its support 

with the reticle cross linos in the.hcorizental and vertical hlanes:ariii use it to 4eijus 

the K & E target. The target will be centered when the center mark on the target 

no longer moves laterally'as h",- rota; or housing is rotated. u p Hitt) 

feature of the alignment teIescopernay be used to elimiliate'tilt Set the:tele.SOpe, 

focus to infinity and adjust:the-target mirror tilt until the return image of the 

telescope redelci it, superimposed upon the reticle 

5, .When the target has been anjusted, translate the telescope littera:11i' untiktlie,' 

line.of-sight i aligned with the cent tsr of the'dFsplacerrient targOt., 

Remove the K-rotator from the alignment fixture. .

7. stall the collirriator cri-,ylcir-l-rnbson 112/782) in its stipport:. support 

should he installed on the alignMent I ixture using tile et .of. closest to 

K -rotator. 

8. Align the c llirnator with the.telescope line of sight. View the target at 

infinity to ren argular error. View the displacement target to reduce lateral 

error. 

IFTAMME VIA BYEMAN 

CONTROL SYSTEM :'CiNLY • 

CODE 'DENT NO DWG NO. 

92208 

SIZE 

A 

SCALE REV SHEET ;;) 
NRO APPROVED FOR 

1PEt1 ASE111/44UtY 2015 

opv 

9. ReplaCe the 1K-rotator on the, aligns ent.fixture and check the alignMentof,itS 

rotation axis with the telescope line-of-sight If satisfactory, remove'the target 

mirror and its mounting fixture. 

NOTE: Due to the construction of the lc-rotator, it Js iMposSible to seParate 

adjustments for angular and :displacement errors. It appears easier, 

therefore, to reduce angular and displacement errors; with respect to 

the horizontal (or. Vertical) plane as •a first step and to then reduce the 

angular and displacement errors within that plane with respect to the 

desired axis as established by the intersection 'cif the teleseope reticle. 

cross lines. The following. procedure will accomplish: this. 

10. Rotate the K-rotator housing until mirror MI (see Figure 1) will be held in 

position by gravity whop the adjustment locking screws are loosened: , Loosen the 

locking screws with the Ash hex ball driver set 'supplied for this purpOse. 

11. Since access to the center jacking screw (S1, Figure 2) on mirror Nil is o 

.striieted by ?a key, it would be beSt .toi niake adjUstrnents reqUirinkUSe 

screw firSt. This screw is effee.tive in reducing.ex.:rotp With.respectlo.,a OriOnta 

plane4f .the K-rotator is. positione.d as suggested in step 10.'. 

T4Sing the special wrench provided,•• rnake an .adjustment of the screw:(Sq) 

View both near and=far collimator targets imith the teleSeOpe cletes70iiir6:the 

effect of the adjustment. The acijustMent should tend:to move the targets into. 

line with the horizontal cross line ofthe telescope reticie. 

Movement of a single .jacking Screw produces a displieeMent of the mirror' 

as well 4as a change 'of its angle. A,ehange of ariVe affects-the.far target: 

. • 

near target is affected .by :both the change in angle and the diSplaeMent, T ere' 

if the change in angle has a deSirable effect but the displacement tendys: to rnoV 

It may be necessary.,to, rotate. the.hiiu.sing .sli 

• • 

9 

troitity BYEMAN T 

CONTROL S 

CODE IDENT NO. 

92208 

SIZE DWG, NO. 

SCALE REV.. SHEET 
NRO APPRpVED FQR 

RELEASQ I JULY 2015 

t he near target in the wrong direction, the displacement Maybe'nullifipcl..aild th 

change in angle continued by nieving the other two jacking screw (Se, 83) f or 

mirror Ml in equal increments but in a,ri opposite direction, tei the.first screiv 

with . one'persen Observing the targets through: the teleicdpe ar47another roakin 

adjustments' should he possible•to align the targets apprmitniatelY14th't 

horizontal cross .1i;ie of the telescope reticle . if perfect `t is 

cross line cannot be obtained, xr,irror M3. should: be adjusted. tro' the a:044 

sorew:(84, Figure 3) nearest.the xcQllrliiatior• to move the...targets toward the-, 

'horizontal.cross line. Then return to.adjUsting mirror Ml until no furt et'f 

• 

improvement can be obtained Return then to mirror lieiterat.-these 

steps Until good alignment:with the hOrizontal reference obtaine Most 

the adjustinent may be accomplished with mirror MI... Mirror M3 should be 

adjusted Sparingly- to preservethe original mounting dirnenSions as closely as 

possible.. 

12'. After the previous step has been completed, the mirror& listed 

to.eliminate the errors .Within the lioriz.prita.1 Use the jacking .screws 

83) nearest the collimator to tilt Mirror. M.l. be:necessar 

move -them in equal increments, but in opposite directions, to bring the targets 

-Close as possible to the intersectiOn:of the teleteope cross lineS. When no 

further iniprovenlent can he obtained, .ad-just mirror M3. Use the JaCkinge-07 

(86) diagonally opposite to the one used in.siei5 1.1. This will tend- t6 1?rc.■ 51y0.:PIC' 

in.mirror M3 which will be orthogonal to,the-rnotiOn:prOduced ster.C11. (.4 

motion .should ,be in,a-difiction to Move the targets toward the enter ihe 

telescope reticle. As in step Ili, unlock the jaek.ing screW., 

meat., and relock the screw before viewing the .effects, - 'nye' 1,4elt and 4ort 

This screw should be unlocked, moved slightl 

effect of its motion is observed: 

nd then reloCktidsbefore the 

S I ZE: DWG NO. 

SCALE': 

trAN15E5 VIA BYEMAN 

CODE !DENT NO 

922 

WI REV SHEET 

1 _IC1/¢7, 
NROAPPROVFDFOR 

.J • 

a 

between the two mirrors with .only small adjustments to mirror M3 until good 

alignment is secured. 

1 3. Lock the jacking screws of mirror. M1 Or4 at a lime. Observe to view 'any 

changes that may occur. If changes occur' due to lOcicing, . they must bc correac 

by adjustment of .the jacking screw. 

1.4. RCita.te the K,rotato:r:hOusing Observe any residual. errors. 

errors between the initial position and a position at 180 degrees of aTilethanwal 

rotation may be split by` djustment:. 'The same procedureMay befoi.:],o*.g.fl.fpt,„ 

errors at mechanical rotations Of 90, doO.-get:3 - .and 1:70 This 4iat.±4:4b,:g 

the residual eri6ts If the .. servo $yst6±1.1 i:oiTipcitlentS hayelb6e#Asys*toil..;'0) 

K-rotator it may not he possible toleheOk the 1,80 ciegree pOsition.: 

1 5 When finally, aligned. the K.-rotator shall exhibit the following maximum 'errori 

15.1 The axial image of the displacement target shall appear.atationary:. 

within 0.001 inch total excursion as the. 1{-rotator4s rotated throUgli::: 

360 mechanical degrees. In'eqber words the :X.cursioris:Shall 

within a circle, 0.001 inch in diameter.; 

15.2 The axial image of the target at- infinity shall appear' stationary within 

three arc minutes total excursiori as the I< rotator tneves through 360 

mechanical degi-ees Note, that this toleranceJS,againa total tOle.ran g 

and not a bilateral one. 

1:6. A check Tiat eithe equipment "reqUired::fOr this proc'edtire:fo, 

16,1 Alignment te escape Taylor-I:lobson 112/6/6', 

16.2 Collimator, Tay:ler-Hobson. 112r/82. 

1'6.3 T.9...rgqt mount fixture (141 2461:31), 

SIZE. CODE !DENT' NO DWG NO. 

1FIANDL; VIA BYEMAN: A. 9220 

SCALE WT REV „ 
SIZE 

16.4 Adjustable mirror target, K E 716240. 

16..5.Centering bushing (140,374P1). 

16,6..Ash hex.ball driver ,set. 

16.7 Jacking screw wrench. 

16.8 Items 1 , 2, 10 and their associated hardware as shown on thc. move:a 

elements alignment fAxture ([40359G1). 

SCALE REV . SkEET 
NRO APPROVED FOR 
HANDLE vrx. BYEMAN 

CONTROL SYSi-EK ONLY 

SCALE 

CODE IDENT NO 

.922