Multiquip MQP20P Flushing Out Radiator and Replacing Coolant, Radiator Cleaning, Potentiometers

Page 34

maintenance

Flushing Out Radiator and Replacing Coolant

1.Remove radiator cap. Remove the coolant drain plug. Move the lever to the open position to start draining out coolant. See Figure 25.

Remove

Radiator Cap

Radiator Cleaning

The radiator (Figure 26) should be cleaned with a high- pressure washer when excessive amounts of dirt and debris have accumulated on the cooling fins or tube. When using a high pressure washer, stand at least 5 feet (1.5 meters) away from the radiator to prevent damage to the fins and tube.

Battery

Charger

Turn to

Radiator

Radiator Drain

Remove

Drain Plug

Open

Figure 26. Radiator Cleaning

Figure 25. Draining Coolant

2.Flush the radiator by running clean tap water through radiator until signs of rust and dirt are removed. Do not clean radiator core with any objects, such as a screwdriver.

3.Check hoses for softening and kinks. Check clamps for signs of leakage.

4.Move lever to the closed position and reinstall coolant drain plug.

5.Replace with coolant as recommended by the engine manufacturer.

6.Close radiator cap tightly.

WARNING

Allow engine to cool before flushing out radiator. Flushing the radiator while hot could cause serious burns from water or steam.

voltage regulator adjustments

When the voltage regulator is defective or broken and is replaced, the following adjustment procedure needs to be performed on the newly installed voltage regulator.

Potentiometers

Figure 27 shows the screwdriver adjustable potentiometers on the front of the voltage regulator.

VOLTAGE REGULATOR

VOLT STAB U/F

1

3

2

Figure 27. Voltage Regulator Potentiometers

1.Coarse Voltage Adjust A screwdriver adjustable potentiometer on the front of the voltage regulator

page 34 —MQP20P STANDBY GENERATOR • operation and parts manual — rev. #1 (11/28/11)

Image 34
Contents Model MQP20P Proposition 65 warning Diesel engine exhaust and somePage Table of Contents MQP20P Standby GeneratorChoose from three easy options Safety Information SaFeTY MeSSageSGeNeRal SaFeTY GeNeRaTOR SaFeTYENgiNe SaFeTY Restricted. If the air fl ow isFuel SaFeTY TOWiNg SaFeTYGrounding Safety EleCTRiCal SaFeTYPower Cord/Cable Safety BaTTeRY SaFeTY ENviRONMeNTal SaFeTYSpecifications Dimensions Installation Typical Generator Grounding ApplicationMounting Outdoor InstallationIndoor Installation Generator GroundingGenerator General informationCamlok outlet box panel Engine Principle of operationElectrONIC Governor System Major components Item no DescriptionBasic engine components Basic Engine ComponentsDigital controller panel Microprocessor Engine Controller MECConnector outlet box and main circuit breaker Outlet connectorsLoad application/generator output Single Phase LoadGenerator Amperage Lubrication Oil Inspection/setupRefueling Procedure Fuel CheckFuel Expands Battery Cleaning the RadiatorAir Cleaner Fan Belt Tension Coolant Antifreeze/summer coolantAlternator Battery Cable InstallationWiring Piping and Hose ConnectionBefore Starting Starting Auto ModeStartup Starting ManualNormal Shutdown Procedure Emergency Shutdown ProcedureJacketWater Heater and Internal Battery Charger Battery Charger and Jacket Water Heater Power ConnectionsProtective devices Protective devicesTransporting TransportingAir Filter Dust Indicator MaintenanceGeneral Inspection Air Filter Removing Water from the Fuel Tank Cleaning Inside the Fuel TankFuel Addition Fuel Tank InspectionFlushing Out Radiator and Replacing Coolant Radiator CleaningVoltage regulator adjustments PotentiometersAdjustment Procedure Generator StorageTroubleshooting Generator Troubleshooting GeneratorTroubleshooting engine Troubleshooting EngineTroubleshooting controller Troubleshooting MEC20 ControllerImproper calibration? Troubleshooting Voltage Regulator Troubleshooting Voltage RegulatorMaintenance Parts Locator Generator Wiring Diagram single phase Control BOXCircuit Breaker BOX Generator Wiring Diagram three phase 505 K1 Explanation of Code in Remarks Column Suggested Spare Parts MQP20P with Perkins 404D-22 Diesel Engine 1 to 3 unitsHousing assy Part Name Engine and Generator Mounting assy GENERATOR, 30KW Fuel assy Part Name QTY Remarks Electrical assy BOLT, BATTERY, 10.38 Jacket Water HEater assy BRACKET, MOUNTING, Heater Solenoid assy BRACKET, Starter Solenoid Radiator assy Guard Air filter assy Cover Engine exhaust assy Exhaust Flex Engine Oil assy OIL Filler CAP Control panel assy PANEL, FRONT, Control Panel Controller assy MODULE, Output Expan MEC 2/20 W/CABLE Saddlebox assy Phase Units Circuit breaker assy Ground Housing Camlok assyCOVER, HINGED, Black Terms and Conditions of Sale Parts FReigHT pOliCYPage HERE’S HOW to GET Help