VEHICLE MOUNTED PUMPS - Bill Salmon Learning …

1 VEHICLE MOUNTED PUMPSM odel: CMU(Pump)YBX(TRANSMISSION)Foam manifoldFoamPro systemCompressor/SumpCompressor oil heat exchangerOil filterPneumatic clutchPump Serial NumberLocated above tank to pump Number stamped into cast iron. Separable Impeller Shaft 1982 PUMPS assembly requires two serial numbersSeparates at pump body flange and chain case flangePUMPCHAIN CASEC hain case serial number. Located on rear of chain Impeller ShaftBronze ImpellersShaft Seal1st stage2nd stageMidship style PUMPS have two seals and require support at at each Stainless ShaftDischarge Barrel2ndStage intake1stStage intakeWaterous Pump TrainingBronze ImpellerEyeVanesBoreExit wayFront ShroudHubWaterous Pump TrainingRotation? - ClockwiseAdds velocityRear view of impeller with rear shroud machined Iron Body10 VoluteStripping EdgeRadial ThrustWEAR RINGSR ecirculation from impeller exit way to intake of Pump TrainingBronze Wear RingsLimits water back to Pump TrainingClearanceWear ring is trapped in the pump OF SEALING PUMPPACKINGS tuffing BoxShaft passes throughWaterous Pump TrainingPacking compressed by glandsSplit packing glandMETHODS OF SEALING PUMPMECHANICAL SEALST hree basic parts of a Mechanical SealSpring AssemblyBellows AssemblyStationary RingRubber Bellows Adheres to impeller shaft when Primary RingBellows and Impeller Shaft LubricantPolished Stationary RingPolished Primary Ring2 sealing featuresImpeller shaftSeal between impeller shaft and bellowsSeal between the carbon primary ring and stationary STAGE PUMP THEORYINTAKEV olume1st2nd1stFrom 1st stageTo discharge barrelDischarge BarrelFrom 1st stageFrom 2nd stageDischarge barrelFrom 1st

2 StageTo 2nd stageFrom 1st stage thru transfer valveINTAKE1st STAGE DISCHARGEAdds pressureDAMAGE - OVERHEATINGS eized, spun wear ringsHow can you tell you re overheating the pump?Option since 2000 Thermal Valve 140 degreeThermal Switch 180 degreeThermal Valve 120 degreeThermal Switch 180 degreeRetro-fit for PUMPS without machined center dischargesDAMAGE - CORROSIONWhat purpose does the intake screen serve?Zinc, sacrificial anodeInstall on Intake Fittings Plug or 4 bolt flange styleCS SINGLE STAGE PUMPDual Suction Eyed ImpellerTwo eyes with a single exit waySingle Stage Pump Flow113 Dual stripping edges balance radial CASE TRANSMISSIONOVERVIEWC hain CaseExclusive to WaterousTransfer of PowerNoiseDurabilityFlingerDriven SprocketOil PumpDrive SprocketLocking BarChainOil FilterDrive ShaftCoupling Shaft312 Components of Chain CaseSeparable impeller shaft allows for removal of transmission from pump without disassembly. CHAIN CASE TRANSMISSIONSHIFTINGS hift control in the road positionNo LightsPump engaged light in cab activated from switchForged, hardened steelDrive ShaftCollarCouplin g ShaftSector GearLocking Arm AssemblyShoeRoad positionShift control in the pump positionLight is energized by the switch on the pump transmissionSwitch is compressed by shift armPump positionNote position of Locking Arm AssemblyRotated 170 degreesCollar in the pump position.

3 Install collar with chamfered edge towards sprocketpgg he automatic mission is in ping gearht is rgized by a tch on the omatic nsmission Butt tooth condition Pull lower handle to disengage electric cam and shaft downPulls arm and pin away from shift armPull upper arm to shift chain case. It may take two operators. One to manipulate the truck trans, one to air shift control must be in the neutral position for VALVEC able Operated Drain ValveTypically MOUNTED on the front side to the chain case. Valve in the closed CONTROL SYSTEMSP ilot ValveRelief valve bypasses water from the closed discharge line back to the intake. Where it displaces incoming switch for in. OrificeSetting the valve424426 Cleaning Valve off Remove Strainer Check O-RingsCheck orifice. Clean and blow through and/or clean with piece of wire or torch tip Circulate water @ 150 psi. Cover strainer opening with hand and turn valve on and off Flow when on / no flow when offCleaning Turn valve off Reinstall strainer, hand tight.

4 Turn T handle counter clockwise to remove spring tension from Valve Piston. Turn valve on and offNote warningDISCHARGE VALVESWave SpringUnlockedLockedPRIMING SYSTEMP riming Valve in closed positionValve in the open positionValve rod hits switch12 Volt Starter MotorSolenoidOil line check valve/orificeOil style Primer Rotor and Vanes Aluminum Rotor 3 Linen VanesVPO Style Primer Aluminum Rotor 4 Composite Vanes