Bestest and Tesatast vertical test indicator
spare parts list reference

 

Repair Manual for Swiss-made BesTest and TesaTast Indicators

Complete and fully illustrated. Contains detailed photographs of every step required to disassemble, clean, and reassemble these indicators. Step-by-step instructions on replacing and repairing damaged parts. Illustrated parts lists, parts breakdowns, exploded view drawings. Calibration trouble shooting. Repair tools and techniques. Based on over 35 years of personal experience.

click to read all the details

TesaVerticalA
TesaVerticalB

Most parts for the vertical indicator are the same as for the horizontal models. We show only the exceptions on this page. Other parts can be identified from the breakdown on page 74.

Vertical BesTest indicator models:

  • 7024-3 (.0001") 38 mm diameter
  • 7038-3 (.00005") 38 mm diameter
  • 7037-3 (.0005") 28 mm diameter

Spare parts are no longer available from us. This page is for reference only.

Dwg

Description

B&S no.

TESA no.

L

contact points (see page 21)

1

body (vertical style) only

023001

3

mounting plate (flange)

023041

17

body cover, vertical model

99-7029-20

023045

30

center pinion, vertical models

99-7037-134

023025

31

jeweled plate with four posts, vertical model

023007

35

jeweled plate with return spring, vertical model

023008

42

dial for Bestest 7037-3 (0-15-0) Ø 28 mm

060057

42

dial for Bestest 7038-3 (0-4-0) Ø 38 mm

060054

Notes

 

Complete repair instructions are available. Click here for details.

The old crystals are removed with a special tool which acts like a suction cup. You can improvise other methods but you're likely to cause damage. Often times the new crystal, which is slightly convex, can be snapped in by hand, but even here, we use special equipment to avoid damage to the indicator. It's best to leave this to someone with the right tools.

Crystals sold on this page are intended only for those Bestest models ending in -3 or -5. Crystals for obsolete models can be found on page 233.

Unlike many other test indicators, the bezel can not be removed without complete disassembly.

(*) Movement disc (023042) is not suitable for parallel model 7021.

The orange hands are ridiculously expensive to buy so here is a word of warning: just about any cleaning product will wash away the orange paint, so don't try to clean them. You can successfully paint them using fluorescent orange enamel paint available at hobby and craft stores. (Acrylic paints do not offer sufficient coverage for a bright finish.)

 



 

 

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: 14 November 2018
All Rights Reserved

Original photographs and content copyright 2018 by JWGrum

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