5 Maintenance
Study the instructions carefully. The items refer to the parts list and service kits section. Handle scrap correctly.
NC = Normally closed.
NO = Normally open.
A/A = Air/air activated.
5.4
Valve assembly
Reverse order of .
Lubricate O-ring (21) and lip seal (25) with Klüber Paraliq GTE 703.
Remember to tighten spindle and plug (use two 17 mm spanners).
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Change-over plug tighten torque = 22 lbf - ft (30 Nm)
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Shut-off plug tighten torque =15 lbf - ft (20 Nm)
If there are vibrations in the pipeline Alfa Laval recommend to use loctite nr. 243.
The clamps thread must be lubricated before tightening - max. torque for the clamps is 8-9 lbf - ft (10-12 Nm).
!
Pay special attention to the warnings.
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