Version 08.2017 | Page/ Seite 12
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Chapter 3
Maintenance
WARNING
ISOLATE AND DISCONNECT ALL SOURCES OF ELECTRICAL SUPPLY BEFORE WORKING ON
THE EQUIPMENT.
PREVENTATIVE MAINTENANCE
BEARING SYSTEM
The ServoTube 11 modules are supplied as complete, ready to use mechanical systems. Each system incorporates
a profile rail re-circulating ball bearing system for support and guidance. The bearing carriages, to which the
moving forcer is attached, are fully charged with grease before delivery. This grease will last for the life of the
bearing system and there are no means to regrease the bearing carriages.
THRUST ROD
The thrust rod must be kept clean and central to the forcer bore to avoid damage to the windings inside the forcer.
Check that the thrust rod is centrally aligned by moving the forcer along the entire length of the thrust rod and
observing the gap between the thrust rod and forcer bore.
If the thrust rod is becoming polished in places, this is usually an indication that the forcer is coming into contact
with the thrust rod. Check the surface of the thrust rod for any raised areas that may damage the inside lining of
the forcer. A soft cloth can be used to clean the thrust rod and self adhesive tape can be used to lift off any ferrous
debris that may be attracted to it.
FORCER
Forcers have a fluoropolymer inner lining that does not require maintenance. However, when carrying out checks,
a visual inspection should be made to ensure there is nothing trapped in the ends of the forcer.
CABLES
Check that all connecting cables are secured and not under strain. Inspect cables for signs of wear.
ENCODER (WHERE FITTED)
The encoder scale should be cleaned with a soft, lint free cloth to remove any oil, grease or dirt. Under no
circumstances must solvents be used on optical encoder scales as the protective lacquer coating may become
damaged.
