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Service instruction SI/ANAINST/001-EN 

Aztec 600

Piston assembly
Single- and multi-stream colorimetric analyzers

Aztec measurement head assembly 
repairs 

Measurement made easy

1 Introduction

This publication details cleaning procedures to be performed 
before returning an for Aztec piston assembly to the factory for 
repair.

Before returning an Aztec piston assembly to the factory, 
ensure it has been cleaned and all liquid has been expelled from 
the piston chamber. Two options can be used:
— if the piston is 

NOT

 seized, initiate a manual clean (refer to 

Section 4.2, page 5) before removing it for return (refer to 
Section 4.3, page 6)

— if the piston is seized a manual clean may not be possible, 

remove it from the housing (refer to Section 4.3, page 6)

Follow these guidelines to prevent damage to the piston in 
transit and also to comply with the de-contamination 
declaration you must sign and return for the repair to be 
processed. 

Before starting any procedures, read Section 3, page 2.
These procedures must be carried out by a suitably-trained 
technician.

2 Tools / Items required

— Operating instruction 

IM/AZT6CR-EN

*

— Medium flat-bladed screwdriver
— Small crosshead screwdriver

*Operating instruction 

IM/AZT6CR-EN

 can be downloaded 

via the link (above) or by scanning this code:

Summary of Contents for Aztec 600

Page 1: ...nual clean refer to Section 4 2 page 5 before removing it for return refer to Section 4 3 page 6 if the piston is seized a manual clean may not be possible remove it from the housing refer to Section...

Page 2: ...rotection provided by the equipment may be impaired 3 4 Symbols CEI IEC 61010 1 2001 2 One or more of the following symbols may appear on the equipment labelling Protective earth ground terminal Funct...

Page 3: ...ose involved in the life cycle of electrical and electronic equipment In conformity with European local and national regulations EU Directive 2002 96 EC stated above electrical equipment marked with t...

Page 4: ...the correct working of the instrument and the electrical integrity or the CE compliance of the instrument If you have any problems with installation starting or using the instrument please contact the...

Page 5: ...When the clean is complete the and keys to navigate to the Operation field and select Reset Pump 7 The piston can now be removed from the instrument and returned to the factory for repair refer to Se...

Page 6: ...e sealing cap H and remove seal I Discard the seal 7 Remove all traces of fluid from the inside of sample tube J IMPORTANT NOTE Perform this procedure if the piston is seized DANGER Serious damage to...

Page 7: ...ston base complete with seal and O ring into the new piston top W and secure loosely with new piston cone adjusting screw X and spring washer Y 4 Insert new piston assembly Q into the top of new sampl...

Page 8: ...4 3 page 6 16 Locate the measurement cell assembly onto the analytical section back plate and secure with the 4 x M4 screws C 17 Reconnect measurement cell ribbon cable B Note We reserve the right to...

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