Operation and Parts Manual
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES
MODEL MQP20P
20kW Standby generator
proposition 65 warning
Diesel engine exhaust and some of
Page
Table of Contents
Component Drawings
Installation
Inspection/Setup
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Safety Information
SaFeTY MeSSageS
SaFeTY SYMBOlS
DaNgeR
geNeRal SaFeTY
geNeRaTOR SaFeTY
Safety Information
NeveR lubricate components or attempt service on a running machine
eNgiNe SaFeTY
Safety Information
DaNgeR
Fuel SaFeTY
TOWiNg SaFeTY
Safety Information
DaNgeR
eleCTRiCal SaFeTY
grounding Safety
power Cord/Cable Safety
death
BaTTeRY SaFeTY
eNviRONMeNTal SaFeTY
Safety Information
DaNgeR
SPECIFICATIONS
Model
Phase
Battery
DIMENSIONS
installation
NOTE GROUND LUG MUST BE INSTALLED BY USER
Figure 2. Typical Generator Grounding Application
GENERATOR GROUND LUG
Outdoor Installation
Indoor Installation
Mounting
Generator Grounding
general information
Generator
Camlok outlet box panel
principle of operation
VOLTAGE REGULATION
Engine
ElectrONIC Governor System
major components
Table 4. Generator Major Components
ITEM NO
DESCRIPTION
basic engine components
Table 5. Basic Engine Components
DESCRIPTION
digital controller panel
Figure 5. Digital Controller Components
connector outlet box and main circuit breaker
outlet connectors
MAIN CIRCUIT BREAKER
Single Phase
Single Phase Load
Table 6. Power Factor By Load
load application/generator output
Generator Amperage
inspection/setup
Refueling Procedure
Lubrication Oil
Fuel Check
when heated
ONLY use #2 diesel fuel when refueling
DO NOT fill on unlevel ground
inspection/setup
Cleaning the Radiator
Air Cleaner
Battery
Coolant Antifreeze/summer coolant
Battery Cable Installation
Wiring
Alternator
Piping and Hose Connection
startup
Before Starting
Starting Manual
Starting Auto Mode
Normal Shutdown Procedure
emergency Shutdown Procedure
CLOSING THE ENCLOSURE DOOR
startup
JacketWater Heater and Internal Battery Charger
Jacket Water Heater Battery Charger Connect to external
120 VAC power source
Figure 21. Battery Charger and Jacket Water Heater Power Connections
protective devices
protective devices
transporting
TRANSPORTING
LIFTING
CHAIN
maintenance
Air Filter Dust Indicator
General Inspection
Air FILTER
Cleaning Inside the Fuel Tank
Fuel Addition
Removing Water from the Fuel Tank
Fuel Tank Inspection
Radiator Cleaning
voltage regulator adjustments
Flushing Out Radiator and Replacing Coolant
Potentiometers
Adjustment Procedure
Generator Storage
maintenance
Troubleshooting Generator
Troubleshooting Generator
Symptom
Possible Problem
Troubleshooting engine
Troubleshooting Engine
Symptom
Possible Problem
troubleshooting controller
Troubleshooting MEC20 Controller
Symptom
Possible Problem
Troubleshooting MEC20 Controller - continued
troubleshooting controller
Symptom
Possible Problem
troubleshooting VOLTAGE REGULATOR
Troubleshooting Voltage Regulator
Symptom
Possible Problem
MAINTENANCE PARTS LOCATOR
Figure 28. Maintenance Parts Locator
J1 E1
K1 B1
generator Wiring Diagram single phase
CONTROL BOX
generator Wiring Diagram single phase
SADDLE BOX
CIRCUIT BREAKER BOX
GENERATOR
generator Wiring Diagram three phase
generator Wiring Diagram three phase
505 K1
505 505
SaMple paRTS liST
Explanation of Code in Remarks Column
NO. Column
paRT NO. Column
Suggested Spare Parts
MQP20P with PERKINS 404D-22 DIESEL ENGINE 1 to 3 units
Description
Housing assy
PART NAME
REMARKS
Housing assy
HOUSING ASSY., PAINTED WHITE, W/ INSULATION
Engine and Generator Mounting assy
Engine and Generator Mounting assy
PART NAME
EE46389
Fuel assy
To TB1-20
Fuel assy
PART NAME
REMARKS
CAP, FUEL TANK, LOCKING 2IN NPT
Electrical assy
Power Source
To External
CHARGER, BATTERY, AUTO, FLOAT EQ
BATTERY, MAINT. FREE, GROUP 24
MAGNETIC PCKUP W/ WIRES RED/BLCK
Electrical assy
To External Power Source
Jacket Water HEater assy
Jacket Water HEater assy
PART NAME
REMARKS
EE40205
Solenoid assy
Solenoid assy
PART NAME
REMARKS
EE2916
Radiator assy
Radiator Connection
KIT, WIRING HARNESS COOLANT SENSR
Radiator assy
PART NAME
REMARKS
Air filter assy
NOT SERVICED SEPARATELY
Air filter assy
PART NAME
REMARKS
Engine exhaust assy
Engine exhaust assy
PART NAME
EE54297
Engine Oil assy
Engine Oil assy
PART NAME
REMARKS
VALVE, LOCKING BALL, BRASS, 1/2IN FNPT
control panel assy
control panel assy
PART NAME
REMARKS
FRAME, BOX, CONTROL AND CIRCUIT BREAKER
Controller assy
To Engine
Controller assy
PART NAME
RELAY, 8 BLADE DPDT, 12VDC, 10A
CONTROLLER, SPEED UNIT, 12/24V
saddlebox assy
saddlebox assy
PART NAME
REMARKS
BLOCK, MIDGET FUSE TYPE, 3 POLE
Circuit breaker assy
Circuit breaker assy
PART NAME
REMARKS
BUS BAR, LONG, 1/4 IN COPPER BAR
camlok assy
11 12 13 14
Ground
Circuit
Camlok assy
PART NAME
REMARKS
BOX, CONTINUOUS HINGE, HOFFMAN
Terms and Conditions of Sale - Parts
SpeCial expeDiTiNg SeRviCe
paYMeNT TeRMS
FReigHT pOliCY
Page
HERE’S HOW TO GET HELP
PLEASE HAVE THE MODEL AND SERIAL NUMBER ON-HAND WHEN CALLING
Service Department
Warranty Department