Dayton 3WY46, 3WY47 installation instructions Troubleshooting Chart

Page 18

Dayton Operating Instructions and Parts Manual

3WY47, 3W735B, 3W736C, 3WY44, 3TE27A, 3WY45, and 3WY46

Dayton® Professional-Duty

Electric Generators

Troubleshooting Chart

NOTE: See engine ownerÕs manual for engine troubleshooting.

Symptom

Only a qualified electrical service

person should service and repair generator. Use only factory approved repair parts.

Possible Cause(s)

Corrective Action

Engine will not start	1. Insufficient fuel	1. Fill tank with fresh fuel
	2. Oil level low	2. Fill engine crankcase with oil to the full
		mark on dip stick

No voltage when starting generator with no electrical load

1. Defective capacitor	1. Replace capacitor
2. Winding short circuit or loose	2. Check resistance of coils (see ÒElectrical
connections	Component Specifications,Ó page 2)
3. Defective rotor diode	3. Replace both diodes on rotor
4. Loss of residual magnetism	4. Apply 12-volt battery to capacitor
	terminals for 2-3 seconds

Voltage is less than normal	1. Engine speed too low	1. Set engine speed to 3720 RPM (62 Hz)
voltage with no electrical load		with no load
	2. Defective rotor diode	2. Replace both diodes on rotor
	3. Partial short circuit in winding	3. Check resistance of coils (see ÒElectrical
		Component Specifications,Ó page 2)
	4. Defective capacitor	4. Replace capacitor

Voltmeter reading more than	Engine speed too high	Set engine speed to 3720 RPM (62 Hz)
10% high with no electrical		with no load
load

Voltmeter reading correct with no electrical load, but more than 10% low when electrical load is added

1. Defective rotor diode	1. Replace both diodes on rotor
2. Electrical load too high	2. Do not overload generator
3. Engine not running properly	3. Contact an authorized engine service
	center

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Image 18

Contents Description UnpackingGeneral Specifications SpecificationsElectrical Specifications Receptacle SpecificationsProduct Identification Portable Generator Model 3W736C ShownGeneral Safety Information Generator Features OIL Alert SystemHour Meter Full Power Selector SwitchGround Fault Circuit INTER- Rupter Receptacle AUTO-IDLE SystemEngine Circuit Breaker Models 3WY46 and 3WY45 only AssemblyHandle and TOP Cover Assembly Model 3WY47 only Receptacle Circuit BreakerBattery Models 3WY46, 3WY45, and 3WY47 only Installing Battery Cables to EngineMounting Battery to Generator From starter solenoid. Connect it toGenerator Grounding InstallationFuel Engine OILDUST, DIRT, RAIN, and Snow Ground Fault ProtectionStandby Installation to Home or Building Extension CordsChart Typical Electric Appliance WattagesPower Cord and Plug Requirements High and LOW Temperature OperationUsing Receptacle OperationRecoil Starter not Available on Model 3WY47 PrestartStarting Electric Starter Models 3WY46, 3WY45, and 3WY47 onlyAdjusting the Idle Speed AUTO-IDLE OperationAdding Electrical Loads Disconnecting Electric LoadsHigh Altitude Operation Stopping EngineMaintenance and Repairs StorageServicing the Engine Troubleshooting Chart Wiring Diagrams T4 Main Windings Yellow Black Red GreenWiring Diagram, Models 3WY45 and 3WY46 WLE-4 Repair Parts List3W735B NEC-5CFor Repair Parts, call Repair Parts List for Model 3W735B Alternator Assembly WLE-53W736C, 3WY44, 3TE27A, 3WY45, and 3WY46 Terminal block 4-block 3WY47 Repair Parts List for Model 3WY47 Alternator Assembly 3W736C, 3WY44, 3TE27A, 3WY45, and 3WY46 WLI-3 WP-4CWP-3C Repair Parts List for Model 3WY47 Fuel Tank and Roll Cage WLI-8 1212 3W736C, 3WY44, 3TE27A, 3WY45, and 3WY46 1013 Repair Parts List for Model 3WY47 Control Panel 3WY47, 3W736C, 3WY44, 3TE27A, 3WY45, and 3WY46 Reference Number Description Quantity Page 3WY47, 3W735B, 3W736C, 3WY44, 3TE27A, 3WY45, and 3WY46 Limited Warranty 3W735B, 3W736C, 3WY44, 3WY46, 3TE27A, 3WY45, 3WY47