SERVICE MANUALCLEANING AND INSPECTIONSection 3PartInspect For Following Condition(s)Corrective Action When RequiredControl RackBurrs on gear teeth or scratches alongPolish with crocus cloth. Replace ifsides.any binding with housing exists.Delivery ValveDamage at delivery valve seat orReplace complete assembly.Assemblyneedle.Gaskets, Seats andALWAYS REPLACE WHEN REBUILDING PUMPO-RingsWhen replacing barrel lower spacer rings, spacer ring installer 9 681 238 902must be used (see Reassembly’- Section4, Page 1).Transfer PumpFuel leakage past pump drive stem.Replace as a complete unit only.See NOTE*Governor HousingCracks, stripped screw threads, burrsReplace.and Coveron mating surfaces.Governor WeightWorn bell cranks, damaged weights,Replace weight assembly as completeAssemblystripped adjusting nut threads, wornunit. Weight springs and shims mayor damaged springs.be replaced individually.GovernorADJUST AS OUTLINED BELOW.*NOTE: Plug outlet side of transfer pump and pressurize inlet side with air to 103-137 kPa (15-20 psi). When submergedin fuel oil, no air leaks are permitted past pump drive assembly.GOVERNOR ADJUSTMENT1.Perform a static check on balanced movementof governor weights by making a temporarybuild-up less springs but using spring seats, trialspacer bushings (obtained locally) and adjustingnuts (Figure 1) on each weight as follows:Figure 1. Details of Flyweight Assembly1.Governor Flyweight Assembly2.Spring Seat3.Trial Spacer Bushing4.Adjusting NutInstall double-nutted thru-bolt in weight assembly. Applyslight pressure to center of bolt and check for excessiverocking movement in one or the other weights (Figure 2).If excessive rocking does occur try using a different sizelower spring seat (available in three sizes). Wheninstalling the three different size weight springs, removethe trial spacer bushings.Figure 2. Checking Flyweight Trail Build-Up1.Rocking Movement 3.Trail SpacerBushing2.Through Bolt4.Adjusting NutCGES-375Printed in United States of AmericaPage 2
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