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18940-0010

18940-0010
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ENGINE COOLING SELF-PRIMING PUMP FEATURES Body: Shaft Seal: Bearing Housing: Bronze Bearings: Ports: Thepumpmaybemountedinanyposition.Thedirection of rotation of the pump determines the location of the intake and discharge ports (refer to dimensional d rawings).Beforeinstalling,rotatethepumpshaftinthe directionofthenormaloperatingrotationoftheengines on which the pump will be mounted. The mounting bracketusedtosupportthepumpmustbedesignedto enableadjustmentofthepumppositionforproperdrive belttension. l iquids between 45° and 180°F. Pumping colder water willshortenimpellerlife. Coolingsystemshouldbedesignedsothecoolingpump operateswithamaximumof15psioutputpressure. Drainthepumpbylooseningtheimpellerhousingbolts andlooseningthehousing.Flushcoolingsystemwithan ethyleneglycolbaseantifreeze.NOTICE:Donotusea petroleum based rust inhibitor in the pump. Pump d amagecanresult. PutPulleydrivebeltoverboththedrivepulleyandthe pumppulley.An“A”sectionpulleybeltshouldbesufficient to drive the 18940-0010 pump. Position the pump to ! Injury hazard. Exposed pulleys and belts can cause injury. Install shield around pulleys and belts. Stay clear while machinery is operating. allow 1/2" deflection of the drive belt midway between theengineandpumppulleys.Securethepumpmounting brackets. Attach 1-1/4"ID hose to the ports and clamp usingtwostainlesssteelbandclampsperport(besure toattachthewaterintakelinetotheproperpumpport). Besurethatallsuctionlinesareairtightsothatthepump will self-prime. Start the engine and run at low speed. This pump depends on the water for lubrication. DO NOTRuNDRyform

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SERVICE INSTRUCTIONS DISASSEMBLY 1. Removethethreeimpellerhousingscrews(Key13). 2. Slide impeller housing (Key 2) off the bearing h ousing(Key3)andshaft(Key4)assembly. 1. Clean and inspect all components for wear or d amage.Replaceallcomponentswhereneeded. 2. Lightly lubricate pump shaft (Key 4) and press b earings (Key 9) onto shaft by applying force to innerraceofthebearing.DONOTAPPLyFORCE TOOuTERRACEOFBEARING. 5. Remove the O-ring (Key 7) from the impeller h ousing groove. TO REMOvE SEAL ASSEMBLy,...

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PARTS LIST Part Qty. Number 1 Impeller and Spline Seal* 13 Screw Kit (3 ea. with Washers) 14 Split Washer Service Kit _Hardware Kit_ *Included in Service Kit 11979-0001 18944-1000 18943-1000 18836-1000 18753-0006 10182-0000 18753-0005 96080-0080 92600-0120 See Hrdw. Kit See Hrdw. Kit 91004-0090 18753-0001

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THEPRODuCTSDESCRIBEDHEREINARESuBJECT TOTHEJABSCOONEyEARLIMITEDWARRANTy, WHICHISAvAILABLEFORyOuRINSPECTION uPONREQuEST. USA Jabsco is a trademark of Xylem Inc. or one of its subsidiaries. © 2012 Xylem, Inc. 43000-0414 Rev B 10/2012 Jabsco Italia, s.r.l., Via Tommaseo, 6, 20059 Vimercate, Milano Tel: +39 039 685 2323 Fax: +39

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