Honeywell HON 670 Component Documentation, Maintenance Manual And Spare Parts page 37

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HON 670 / HON 671 Controllers Component Documentation
Figure
Proceed as follows:
Mounting the pressure unit on the controller
Step Description
5 Replace the piston seal (1) with a new,
lubricated piston seal.
6 Insert the piston.
7 Put the cover in place.
8 Tighten the 6 screws (1) using a crosswise
pattern. Tightening torque: 8 Nm (6 ft lbs)
Maintenance
37