Renishaw OMM, OMME Repair Instructions

Repair instructions

H-2000-4042-03-A

OMM and OMME

Fitting a new printed circuit board to a

Renishaw Optical Module Machine

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Renishaw part no: H-2000-4042-03-A
Issued: 02.2009

1

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Introduction

The repair instructions contained within this publication provide
detailed, step-by-step instructions for replacing a defective printed
circuit board (PCB) contained within the following range of Renishaw
Optical Module Machines:

Product description Part number

OMM A-2033-0576
OMME A-2033-7268

Prior to carrying out the instructions contained within this publication,
it is important to ensure that you have the correct PCB assembly kit for
your product as listed below:

Product description Part number of PCB assembly kit

OMM A-2031-0043
OMME A-2031-0201

WARNING: Prior to carrying out the procedures detailed in
this publication, it is important to ensure that you switch off the
power to the OMM.

2

Replacing the defective PCB

Removing the window and label from the OMM

CAUTION: The following procedures must be carried out in a

clean environment. Do not allow liquids or solid particles to
enter the OMM body. Never remove the window by twisting or rotating
by hand. Always use the jacking screws provided.

To remove the window and label from the OMM, carry out the following
(see Figure 1):

1. Using a 2.5 mm AF allen key, release and remove the two short
screws [1] and the two long screws [2] securing the window [3]
to the OMM body [4].

2. Re-insert the two long screws [2] into the two threaded holes A.

3. Tighten, in turn, the two long screws [2] to evenly and carefully
jack the window [3] from the OMM body [4]. Gently remove the
window from the OMM body.

4. Release the label [6] from the OMM body [4] by turning the
two quick release screws [5] a quarter turn counterclockwise.
Carefully lift the label from the OMM body to gain access to the
defective PCB.

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