Onan MGKBC Series Installation Manual Download Page 23 | Manualshive

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14

GENSET

LOAD WATERLINE

MUFFLER

SIPHON

BREAK

VALVE

WATER-EXHAUST MIXER LEVEL

SEE OUTLINE DRAWING (PAGE 23)

48 INCH

(1.2 METER)

MAX.

12 INCH

(305 MM)

MIN.

12 INCH

(305 MM)

MIN.

12 INCH

(305 MM)

MIN.

MUST BE ABOVE

WATERLINE

SIPHON BREAK REQUIRED WHEN WATER-EXHAUST MIXER IS

BELOW OR LESS THAN 6 INCHES (152 MM) ABOVE

LOAD WATER LINE

Note: All exhaust hose and pipe must slope, without sagging, at least 1/2 inch per foot (42 mm/meter).

FIGURE 5. TYPICAL INSTALLATION BELOW LOAD WATERLINE—WITH A SIPHON BREAK, MUFFLER AND RESONATOR

Redistribution or publication of this document,

by any means, is strictly prohibited.

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Summary of Contents for 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: ...aust 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 stric...

Page 4: ...tion Protection 4 FUEL SUPPLY 5 ENGINE COOLING 6 Cooling System Overview 6 System Components 7 Raw Water Pickup Test 8 ENGINE EXHAUST 9 System Components 9 Exhaust Water Separator Backflow Test 10 ELE...

Page 5: ...genset drip pan and compartment clean Oily rags can catch fire Gear stowed in the compartment can cause the genset to over heat Make sure all fasteners are secure and proper ly torqued Do not work on...

Page 6: ...e present or in areas sharing ventilation with fuel tanks en gines and other such equipment Keep flames sparks pilot lights electrical switches arc pro ducing equipment and all other sources of igni t...

Page 7: ...plied greatly by the station wagon effect obstructions that block exhaust dissipation and infiltration from neighbor ing boats To protect against all three situations Onan recommends that reliable CO...

Page 8: ...13 liter min 3 0 gpm 16 liter min 3 5 gpm 13 liter min Raw Water Flow 60 Hz 50 Hz 5 0 gpm 19 liter min 4 0 gpm 15 liter min 5 0 gpm 19 liter min Maximum Raw Water Pump Lift 4 feet 1 2 m with 5 8 inch...

Page 9: ...vi This page is intended to be blank Redistribution or publication of this document by any means is strictly prohibited...

Page 10: ...G regulations is mandatory for boats in U S waters The American Boat and Yacht Council ABYC and the National Fire Protection Associa tion NFPA are typical of agencies that publish safety standards for...

Page 11: ...ex changer and replace the fuel pump At least 1 inch 25 mm of clearance is required in front of the outlet air grille on the right side There must be access for Starting and stopping the genset Resett...

Page 12: ...ct that WARNING Gasoline vapors can explode Be fore starting the genset operate the exhaust blower for 4 minutes and check the genset compartment and bilge for gasoline vapors Ventilation Ducts Ventil...

Page 13: ...heads for wiring conduit pipe and hose must be sealed to prevent exhaust gases and gasoline vapors from entering the rest of the boat Wiring conduit must be sealed inside as well as outside Plumbing F...

Page 14: ...in the fuel tank for the genset The inside diameter should be 1 4 inch 6 35 mm It must not be greater than 3 8 inch 9 mm In a common fuel supply tank the genset pickup tube should be shorter than tho...

Page 15: ...es The raw water is expelled from the boat along with the exhaust gases The V belt drives the coolant and the raw water pumps RAW WATER IN EXHAUST RAW WATER OUT THERMOSTAT HOUSING BLOCK DRAIN CAP RAW...

Page 16: ...engine A rear facing scoop can develop enough suction to impede flow Siphon Break Conduct the RAW WATER PICKUP TEST to deter mine whether a siphon break is required to prevent the engine from being f...

Page 17: ...rk the level on the genset enclosure 3 Operate the boat through its speed range for ward and reverse While the boat is operating have someone monitor the water level in the hose and mark the highest l...

Page 18: ...d stainless steel el bows are available from Onan Horizontal runs of hose must slope down at least 1 2 inch per foot 42 mm meter and be supported such that there are no sags The entire run of hose mus...

Page 19: ...linders become flooded The sea trials must verify that there is no backflow through either the exhaust hull fitting or the wa ter separator drain hose fitting Other Engine Exhaust Systems Do not T int...

Page 20: ...be able to look for water discharge from the hull to tell whether engine exhaust cooling water is flowing However the genset will shutdown if water stops flowing Code No 7 See Troubleshooting in the...

Page 21: ...MIN MUST BE ABOVE WATERLINE SIPHON BREAK NOT REQUIRED WHEN WATER EXHAUST MIXER IS AT LEAST 6 INCHES 152 MM ABOVE LOAD WATER LINE 12 INCH 305 MM MIN Note All exhaust hose and pipe must slope without s...

Page 22: ...HAN 6 INCHES 152 MM ABOVE LOAD WATER LINE Notes 1 All exhaust hose and pipe must slope without sagging at least 1 2 inch per foot 42 mm meter 2 The operator will not be able to look for water discharg...

Page 23: ...H 305 MM MIN 12 INCH 305 MM MIN MUST BE ABOVE WATERLINE SIPHON BREAK REQUIRED WHEN WATER EXHAUST MIXER IS BELOW OR LESS THAN 6 INCHES 152 MM ABOVE LOAD WATER LINE Note All exhaust hose and pipe must s...

Page 24: ...ge fre quency or to readjust voltage Grounding The genset power supply wiring and all connected electrical equipment must be bonded to the com mon grounding system of the boat in accordance with appli...

Page 25: ...tal Displays must have eight 8 conductors Harnesses for remote switches and meters only must have at least six 6 conductors connector pins 7 and 8 are not used See Figure 6 Note 1 All feed through hol...

Page 26: ...se vere personal injury The battery compartment must be ventilated and isolated from spark pro ducing equipment Battery Cables Size battery cables according to Table 2 Total cable length is the sum of...

Page 27: ...ctory Jumpers The genset leaves the factory with SWB jumpered to the other two connectors ESTOP and CO Leave the jumpers connected when no external shutdown devices are to be connected otherwise the g...

Page 28: ...e genset controller into voltage adjust mode The amber status light will begin blinking about once every sec ond to indicate the change to voltage adjust mode The green status light will remain on 3 T...

Page 29: ...ion and filling The entire exhaust system is accessible for in spection and replacement Fuel tanks piping hoses and filters comply with regulations and are accessible for inspec tion and replacement T...

Page 30: ...21 630 2528 FIGURE 8 WIRING DIAGRAM...

Page 31: ...22 630 252 FIGURE 9 GENERATOR CONNECTION DIAGRAM...

Page 32: ...23 500 3363 FIGURE 10 OUTLINE DRAWING...

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