Compac
test indicator spare parts — for reference only

Swiss made series 240 (horizontal model with single revolutions)

The same parts are used for Mercer and SPI test indicators made in Switzerland.

These are single revolution indicators. The hand is set at 5 o'clock and should make about 1-1/4 revolutions. The crystal needs to be inserted with a crystal press. If you do not have a press, it will be easier to buy the bezel with crystal assembled. Warning: unless you know what you are doing, you will lose hair spring tension when you attempt to replace the bezel.

All parts are available for the models listed below. The parts drawing is generic and the actual parts may vary in appearance.

This page is for reference only. Inch–reading models have been discontinued and parts are no longer available from us.

Dwg

Description

Order no.

horizontal test indicator 0,01mm see page 108

242

horizontal test indicator 0,01mm see page 108

242G

horizontal test indicator 0,01mm see page 108

243GL

horizontal test indicator 0,01mm see page 108

243L

horizontal test indicator .0005" SPI 20-051-9

244A

horizontal test indicator .0005" SPI 20-053-5

244GA

horizontal test indicator .0005"

244GLA

horizontal test indicator .0005"

244LA

horizontal test indicator .002mm see page 108

245

horizontal test indicator .0001" SPI 20-052-7

245A

horizontal test indicator .002mm see page 108

245G

horizontal test indicator .0001" SPI 20-054-3

245GA

horizontal test indicator .00005" SPI 20-055-0**

246GA

swivel stem holder and other attachments see page 36

0

COMPAC plastic box for horizontal styles

018600-10

1

adjustable ball bearing (ID 3,6 mm) old style no longer available

044256

1

adjustable ball bearing (ID 2,0 mm) new style

044259

2

fixed jewel bearing

044266

3

nut for adjustable ball bearing

040987

4

case (not in stock)

043328

5

pivot assembly: .0005"/0,01mm old style no longer available

043346

5

pivot assembly: 242, 242G, 244A, 244GA new style*

043351

5

pivot assembly: 244LA, 244GLA, 245A, 245GA new style*

043359

5

pivot assembly 243L, 243GL, 245, 245G new style*

043359

6

pivot assembly .0001"/0,002mm old style no longer available

043353

7

crown gear 242, 242G, 244A, 244GA

043347

8

crown gear 244LA, 244GLA, 245A, 245GA, 243L, 243GL, 245, 245G

043354

9

fixed ball bearing (ID 3,6 mm) old style

044257

9

fixed ball bearing (ID 2,0 mm) new style

044260

10

self-adjusting jewel bearing

044265

11

cover (old style - not available)

043329

12

return spring .0005"/0,01mm

041112

13

return spring .0001"/0,002mm

041131

14

screw for cover

041977

15

bottom movement plate

043330

16

first gear .0005"/0,01mm

043349

17

first gear .0001"/0,002mm

043356

18

brass bearing ø 1.8/0.4 x 0.5 mm

042356

19

bearing holder .0005” / 0,01mm only

041022

20

top movement plate

043331

21

center pinion 244A and 244GA

041115

21

center pinion + hair spring assembled for 244A and 244GA

043350

22

center pinion + hair spring assembled for all other models

043357

23

top movement plate screw

041992

24

spacer (see illustrated instructions below)

041110

25-29

contact point (see page 205)

30

27 mm mounting plate

041003

31

40 mm mounting plate

041010

32

mounting plate screw

041988

33

movement fastening screw

041991

34

dial: 242

041116

35

dial: 242G

041118

36

dial: 243L

041124

37

dial: 243GL

041121

38

dial: 245

041135

39

dial: 245G

041138

40

dial: 244A

041126

41

dial: 244GA

041127

42

dial: 244LA

041129

43

dial: 244GLA

041128

44

dial: 245A

041137

45

dial: 245GA

041140

46

hand for 27 mm dials

041006

47

hand for 40 mm dials

041014

48

crystal for 27 mm bezels

49

crystal for 40 mm bezels

50

27 mm bezel with crystal

043259

51

40 mm bezel with crystal

043270

52

27 mm bezel spring

041005

53

40 mm bezel spring

041013

54

protective disc for hairspring (used in older models only)

041109

54

hair spring

043332


**SPI 20-055-0 .00005" indicators use the same parts as Compac model 245GA (.0001")
 

Genuine Dumont High-tech Matte Finish Tweezers, Anti-magnetic, Style 3c
 


 

*How do you tell new style from old style? The old style had black ball bearing cases. The new ones have shiny chrome cases. These can be seen near the front of the body. There's no need to dismantle anything. Just take a look:

IMG_0442 IMG_0444

old style (left); new style (right)

 


 

Forgetting the spacer will lead to trouble!

IMG1252IMG1254

Without spacer 041110, the 240 series Compac indicator will not work. The spacer is easy to lose since it falls out every chance it gets. Don't be tempted to glue it in place but a small piece of tape could be put over it to good effect. If there is a secret ingredient to repairing this series of indicators, this is it. The photo on the right shows the spacer properly installed.

 



The above items constitute advertisements on behalf of Amazon.com and are not to be construed as endorsements by Long Island Indicator Service. We strongly believe in buying quality tools and gages, and urge customers to check carefully before making a purchase. If the prices appear unusually low, we suggest proceeding with caution.

 

LONG ISLAND INDICATOR REPAIR MANUALS

BesTest and TesaTast Indicator Repair Manual … page 177
Starrett 711 Last Word Indicator Repair Manual … page 199
Interapid Indicator Repair Manual … page 208
Compac Test Indicator Repair Manual … page 194
Mitutoyo Test Indicator Repair Manual … page 102

New! Companion Reference Guide for Test Indicators … page 178
 

www.longislandindicator.com

Long Island Indicator Service Inc
14 Sarah Drive
Hauppauge NY 11788 — USA


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This page's most recent revision: 17 November 2018
All Rights Reserved

Original photographs and content copyright 2018 by JWGrum

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