| 2.1-FACTORY RECOMMENDATION. Your sampling system should be cleaned and checked at daily and weekly intervals for proper operation and to insure any wear is detected so that preventive maintenance can be performed. Acceptance tests on the M4 series sanitary sampler for the U.S. Public Health Service included removal of the unit from product line and manual cleaning. 2.2-CIP CLEANING. Secause of its design, the unit cannot be made to pass sufficient cleaning solution under sufficient pressure to meet customary CIP requirements. Chemical solutions and higher temperatures used in the cleaning and sanitizing process may damage Sampler plunger seals. REMOVE SAMPLER PRIOR TO CIP CLEANING. It is recommended that Sampler be Cleaned Out of Place (COP) while CIP plant cleaning is in process. Return Sampler to process line AFTER CIP cycle is complete. 2.3-MANUAL CLEANING. Remove the sampler from its mounting tee by loosening the thumbscrew on the heavy duty stainless clamp holding sampler to tee. Remove gasket and any sample bottle Remove body by loosening clamp between body and air cylinder head. DO NOT REMOVE HEAD-TO-BARREL CLAMP. It is not necessary to remove the air cylinder barrel for normal DAILY cleaning. 2.3.1-CAUTION: Control should be OFF and air supply to control shut off and PRODUCT LINE free of fluid prior to removing sampler. 2.3.2-Remove plunger industrial seal O-rings from grooves in plunger by squeezing O-ring diameter between thumb and finger and rolling out of groove. Roll O-rings into the sample collecting annulus on plunger where they will not Secome misplaced during cleaning. 2.3.3-Spray or professional brush clean plunger, exposed front of cylinder head, plus body and gasket in approved sanitary procedure |