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• Operation with the stepper motor is dependant on the motor controller used, and the user should
refer to the controller instructions.
• If any movement becomes tight, or if backlash (play) becomes visible, the unit will require
maintenance.
• Routine maintenance is required. See section 4.1
3.2 BAKEOUT
3.2.1 Bakeout guidelines
Warning
: Harmful gases may be evolved if this product is heated above the maximum specified
bakeout temperature.
• Heater tape should not be used over the bellows and should be avoided on all manipulation
equipment as it can cause local hot spots.
• The temperature sensing element controlling the heaters must be suspended in air near the
translator and at a level approximately 50 -100 mm below the highest part of the translator.
• In no event should the temperature sensing element be in contact with or attached to any part of the
translator or the vacuum system, i.e. it must always sense the air temperature.
• Centralize the XY stage and, on horizontally mounted translators, position the Z slide at mid-travel.
• Remove all microswitches and motors as described below..
• Remove all non-bakeable equipment from the bakeout zone.
3.2.2 Removing motors for bakeout
a. Switch off the controller before disconnecting any motor.
b. For the XY motors, remove the three screws securing the motor mounting plate and remove the
motor, microswitches, drive belt and all cabling from the bakeout zone.
c. For the Z motor, first move the knee away from the limit positions by a minimum of 25mm. Unplug
the connector between the motor and microswitch cover. Loosen the single thumb screw on the motor
housing and remove the motor. Remove the cover extrusion that encloses the microswitches by
unscrewing the two screws securing it to the side of the Z-slide. Remove all cabling from the bakeout
zone.
