FLK Gas Sampling System - MPIP - Free

SQ256 Retraction Device
4.2 Guide rollers
If the carriage does not run smoothly or a level of play arises on the carriage when, for example, the probe tip is
moved up and down, then the guide rollers must be readjusted.
Legends:
1 Hex. fastening screws
2 Hex. adjusting screw
3 Lock-nut
Fig. 6 Cross-sectional drawing of carriage
Guide roller adjustment:
• The lower fastening screws on the control box must be removed and the upper screws loosened. Then swivel
the control box upwards.
• On each side of the housing panel on the carriage, the five fastening screws ( 1 ) for the intermediate rail must
be loosened at the bottom.
• Then loosen the lock-nut ( 3 ) for the guide roller adjustment.
• Slightly tighten the adjustment screw so that the lower guide roller is pressed against the traverse rail.
• Traverse the carriage manually over the complete range and make sure that it gives good running
characteristics, readjusting if necessary.
• Tighten the lock nuts.
• Tighten all side fastening screws ( 1 ).
• Correctly fasten the control box again.
Copyright ® SIEMENS Page 103 04/04