Related Manuals for Onan MGKBC Series
Summary of Contents for Onan MGKBC Series
- Page 1 Caution: This document contains mixed page sizes (8.5 x 11 or 11 x 17), which may affect printing. Please adjust your printer settings according to the size of each page you wish to print.
- Page 2 Installation Manual MGKBC, MGKBD Printed in U.S.A. 02-04 981-0635B Redistribution or publication of this document, by any means, is strictly prohibited.
- Page 3 The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Redistribution or publication of this document, by any means, is strictly prohibited.
-
Page 4: Table Of Contents
Table of Contents SECTION PAGE SAFETY PRECAUTIONS ............. . . THE HAZARDS OF CARBON MONOXIDE . -
Page 5: Safety Precautions
Safety Precautions • Keep the genset, drip pan and compartment Electricity, fuel, exhaust, hot engine coolant, moving parts and batteries present hazards which can re- clean. Oily rags can catch fire. Gear stowed in sult in severe personal injury or death. the compartment can cause the genset to over- heat. - Page 6 Critical Parts Index of the genset Parts personal injury or death. Catalog. They must be purchased from Onan • Use caution when working on live electrical and be installed in accordance with the genset equipment.
-
Page 7: The Hazards Of Carbon Monoxide
The Hazards of Carbon Monoxide Most people know not to run a car in the garage. Onan recommends that reliable CO detector- Many people know about the threat of carbon mon- alarms be installed on your boat. oxide poisoning in the house. But few people are •... -
Page 8: Specifications
Specifications MGKBC MGKBD GENERATOR: Two-Bearing, 2-Pole Rotating Field, Microprocessor Regulated. See Genset Nameplate for Rating FUEL CONSUMPTION: 60 Hz: Full Load 1.59 gph (6.0 liter/hr) 1.4 gph (5.3 liter/hr) Half Load 0.95 gph (3.6 liter/hr) 0.77 gph (2.9 liter/hr) 50 Hz: Full Load 1.4 gph (5.3 liter/hr) −... - Page 9 This page is intended to be blank. Redistribution or publication of this document, by any means, is strictly prohibited.
-
Page 10: Introduction
Introduction This genset is suitable for installation in accordance Guard (USCG) regulations is mandatory for boats in with USCG Pleasure Craft Regulations and ISO U. S. waters. The American Boat and Yacht Council Small Craft Standards. (ABYC) and the National Fire Protection Associa- tion (NFPA) are typical of agencies that publish A generator set (genset) must be installed properly safety standards for the construction and installa-... -
Page 11: Location And Mounting
Location and Mounting • Checking, filling and draining engine oil LIFTING THE GENSET • Changing the engine oil filter The genset weighs 425 pounds (193 kg) and has • Checking, filling and draining engine coolant two lifting eyes accessible through the round covers in the top panel (Page 23). -
Page 12: Ventilation
Ventilation must be affixed next to each genset starting switch, EXHAUST GAS IS DEADLY—GAS- WARNING to the effect that: OLINE VAPORS ARE EXPLOSIVE! Failure to provide proper ventilation can result in asphyxi- Gasoline vapors can explode. Be- WARNING ation, fire and explosion. The ventilation system fore starting the genset, operate the exhaust must meet applicable standards and regula- blower for 4 minutes and check the genset... -
Page 13: Carbon Monoxide
CARBON MONOXIDE be sealed to prevent exhaust gases and gasoline vapors from entering the rest of the boat. Wiring CO Detector-Alarms conduit must be sealed inside as well as outside. Plumbing Fixtures Carbon monoxide (CO) detector-alarms, listed for marine applications, must be installed in the living Cabin plumbing drains must have approved traps to quarters of the boat. -
Page 14: Fuel Supply
Fuel Supply Fuel Pickup Gasoline is highly flammable and WARNING explosive and can cause severe personal injury Provide a separate pickup tube in the fuel tank for or death. Fuel tank construction, location, the genset. The inside diameter should be 1/4 inch installation, bonding for grounding, ventilation, (6.35 mm). -
Page 15: Engine Cooling
Engine Cooling COOLING SYSTEM OVERVIEW manifold. Raw water (the flotation water) is pumped through tubes in the heat exchanger to cool the en- Refer to Figure 1. The engine is cooled by a pres- gine coolant and then is passed through a hose into surized, closed-loop liquid cooling system. -
Page 16: System Components
SYSTEM COMPONENTS Do not use a scoop-type through- CAUTION hull fitting. A forward-facing scoop can develop Raw Water Pump enough ram pressure to flood the engine. A rear-facing scoop can develop enough suction The raw water pump can work against a maximum to impede flow. -
Page 17: Raw Water Pickup Test
RAW WATER PICKUP TEST hose is lowered. While the boat is still docked, mark the level on the genset enclosure. Objective 3. Operate the boat through its speed range, for- ward and reverse. While the boat is operating, The objective is to determine the elevation of the have someone monitor the water level in the water line relative to the genset under all anticipated hose and mark the highest level on the genset. -
Page 18: Engine Exhaust
1 to 5.5 feet (30 to 170 cm). Mufflers, water separators, resonators and siphon 2. The muffler inlet must be more than 1 foot breaks are available as kits from Onan. Muffler kits (30 cm) below the exhaust-water mixer include a strainer for the through-hull fitting. -
Page 19: Exhaust Water Separator Backflow Test
Exhaust Water Separator Other Engine Exhaust Systems When an exhaust water separator is used (Figure 2 Do not “T” into any other engine exhaust system. or 4), the muffler outlet and water separator inlet di- Run the genset exhaust piping all the way to the hull ameters must be the same size. - Page 20 SIPHON BREAK NOT REQUIRED WHEN WATER-EXHAUST MIXER IS AT LEAST 6 INCHES (152 MM) ABOVE LOAD WATER LINE WATER SEPARATOR 54 INCH (1.4 METER) MAX. 18 INCH (457 MM) MIN. 12 INCH GENSET (305 MM) MIN. LOAD WATERLINE COCK WATER-EXHAUST MIXER LEVEL MUFFLER SEE OUTLINE DRAWING (PAGE 23) 6 INCH...
- Page 21 SIPHON BREAK NOT REQUIRED WHEN WATER-EXHAUST MIXER IS AT LEAST 6 INCHES (152 MM) ABOVE LOAD WATER LINE 12 INCH (305 MM) MIN. GENSET 12 INCH (305 MM) MIN. LOAD WATERLINE 48 INCH (1.2 METER) MAX. WATER-EXHAUST MIXER LEVEL MUFFLER MUST BE ABOVE SEE OUTLINE DRAWING (PAGE 23) WATERLINE...
- Page 22 SIPHON BREAK REQUIRED WHEN WATER-EXHAUST MIXER IS BELOW OR LESS THAN 6 INCHES (152 MM) ABOVE LOAD WATER LINE SIPHON BREAK VALVE WATER SEPARATOR 54 INCH (1.4 METER) MAX. 12 INCH (305 MM) 18 INCH MIN. (457 MM) MIN. GENSET LOAD WATERLINE 12 INCH (305 MM)
- Page 23 SIPHON BREAK REQUIRED WHEN WATER-EXHAUST MIXER IS BELOW OR LESS THAN 6 INCHES (152 MM) ABOVE LOAD WATER LINE SIPHON BREAK VALVE 12 INCH (305 MM) MIN. 12 INCH (305 MM) MIN. GENSET LOAD WATERLINE 12 INCH (305 MM) 48 INCH MIN.
-
Page 24: Electrical Connections
Onan e-Series Digital Display Note 1: When reconnecting the generator for a differ- Up to three (3) Onan e-Series Digital Displays may ent output voltage, make sure the line circuit break- ers are suitable for the new output. Replace them if be connected for remote control and monitoring of necessary with ones of appropriate rating. - Page 25 Warning Labels components are ignition protected devices. Each Onan kit for an e-Series Digital Display or re- Remote Control Wiring Harnesses mote control panel includes the following label: Onan Harnesses: Eight-conductor plug-in wiring Gasoline vapors can explode.
-
Page 26: Batteries
BATTERIES Battery Cables Size battery cables according to Table 2. Total cable The genset control and cranking circuits are nega- length is the sum of the lengths of the positive (+) tive (−) grounded and require a 12 volt battery. A kit and negative (−) cables. -
Page 27: External Shutdown Devices
EXTERNAL SHUTDOWN DEVICES the jumpers connected when no external shutdown devices are to be connected, otherwise the genset External Shutdown Device Connectors will not run. The genset wiring harness has leads with quick- connect terminals labeled SWB+, ESTOP and CO Wiring Grommet and Strain Relief (Figure 21) for connecting external shutdown de- vices. -
Page 28: Changing Frequency And Adjusting Voltage
Changing Frequency and Adjusting Voltage CHANGING FREQUENCY 4. To adjust voltage down, press and hold START for about 1 second. Voltage will de- crease approximately 0.6 volts each press and Model MGKBC gensets may be configured to oper- release. ate at 60 Hz or 50 Hz. To change the operating fre- quency, remove the front access door and find wir- 5. -
Page 29: Installation Checks And Startup
Installation Checks and Startup Before starting the genset, review the installation The genset is bonded to the boat grounding checklist below for those items that do not require system in accordance with regulations. the genset to be actually running. Make necessary All grounded cranking motor circuits are con- reconnections, modifications and repairs. - Page 30 630-2528 FIGURE 8 . WIRING DIAGRAM...
- Page 31 630-252 FIGURE 9. GENERATOR CONNECTION DIAGRAM...
- Page 32 500-3363 FIGURE 10. OUTLINE DRAWING...
Need help?
Do you have a question about the MGKBC Series and is the answer not in the manual?
Questions and answers