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Chapter 6
Service and Repair of Type 4606
With normal usage your Type 4606 should not require any elaborate maintenance. However, it
is important to remember that Type 4606 is a precision instrument and must be treated
accordingly.
6.1 Storage
Type 4606 should be stored in a clean dry environment in its box or mounted on a HATS. The
rubber O-rings that form the grips should be checked for cracks before use.
6.2 Cleaning
Dust and dirt can be removed using a clean dry cloth. In the case of more stubborn soiling a
damp cloth can be used, but no industrial solvents or detergents should be brought into contact
with Type 4606 as they may cause damage to the finish and markings.
6.3 Lubrication
All joints are lubricated from the factory and should not need further lubrication. The centering
mechanism on the centering forks may occasionally need lubrication, especially if used in a
dusty environment. A small amount of sewing machine oil can be applied to the exposed thread
of the centering mechanism to lubricate it.
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