Procedures For Replacing Upper Bellows - Toshiba TH850A Instruction Manual

3) To mount the bellows, observe the above steps in the reversed order.
Be sure to attach the gasket, and apply the Loctite adhesives to all set bolts.
• When dismantling the bellows, DO NOT pull it out by force. Otherwise, the
bellows may rupture.
• Be sure to apply the Loctite adhesives to all set bolts. Otherwise, the dust-
and drip-proof performance is damaged to cause entry of water or dust.
• Be sure to attach the gasket. Otherwise, the dust- and drip-proof
performance is damaged to cause entry of water or dust.
5.3.2

Procedures for Replacing Upper Bellows

1) Remove the cap and upper keep plate, then the three (3) set screws. Remove
the wiring guide.
2) Remove the lower keep plate, then pull the bellows upward.
3) When disconnecting the arm 2 cover, pull the bearing case upward.
For the procedures for disconnecting the arm 2 cover, see Para. 5.3.3.
4) When replacing the ball screw, remove the three (3) set screws securing the shaft
for bellows, then pull the shaft for bellows upward. When this happens, remove
the collar at the same time as it is set between the ball screw shaft and shaft for
bellows.
This collar is provided only for the machine with 170 mm Z-axis stroke. It is not
provided for the machine with 340 mm Z-axis stroke.
For how to replace the ball screw, see the TH850A/1050A Maintenance Manual
provided separately.
DUST- & DRIP-PROOF TYPE SPECIFICATIONS MANUAL
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CAUTION
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