Northern Lights M20CRW3, Operator'S Manual, Page: 3 / 45

OM844W3 11/13
1
Read this operator's manual thoroughly before starting to operate your equipment.
This manual contains information you will need to run and service your new unit.
Proprietary Information
This publication is the property of Northern Lights, Inc.
It may not be reproduced in whole or in part without the written permission of Northern Lights, Inc.
© Northern Lights, Inc. All rights reserved. Litho U.S.A. Publication number OM844W3 11/13
OPERATOR'S MANUAL
for Models
M844 W3 , M844 DW3 , M844L W3 , and M20CRW3
Table of Contents
INTRODUCTION ...................................................... 2
Models Included ................................................... 2
Model Numbers .................................................... 2
Serial Numbers ..................................................... 2
WARRANTY ............................................................ 3
SAFETY RULES .................................................... 3-7
LOCK OUT / TAG OUT PROCEDURES ............ 8
COMPONENT LOCATIONS
M844 W3 Marine Generator (older baseframe) .. 10
M844 W3 Marine Generator (new baseframe) ........... 11
M20CR W3 Commercial Generator .................... 12
CONTROL PANELS ............................................. 13
OPERATING PROCEDURES
Break-in Period ................................................... 14
Before Starting .................................................... 14
Starting ................................................................ 14
Operating ............................................................ 14
Stopping .............................................................. 14
Shutdowns and Alarms ....................................... 15
Spare Parts .......................................................... 15
SERVICING SCHEDULE CHART ....................... 16
SERVICING
Lubrication - General .......................................... 18
Checking Oil ....................................................... 18
Oil Changes ........................................................ 18
SERVICING (continued)
Changing Oil Filter ............................................. 18
Air Filter ............................................................. 19
V-Belts ................................................................ 19
Valve Clearances ................................................. 19
Fuels - General .................................................... 20
Fuel Filters .......................................................... 20
Bleeding the Fuel System ................................... 21
Injector Service ............................................ 22- 23
Injection Pump .................................................... 23
Cooling System - General ................................... 23
Cooling System Flushing .................................... 24
Heat Exchanger ................................................... 24
Raw Water Pump ................................................ 24
Generator Ends ................................................... 24
Electrical System - General ................................ 24
Glow Plugs .......................................................... 25
Booster Batteries ................................................. 25
Battery Care ........................................................ 25
PTO Care ............................................................ 25
Winterizing / Out-of-Service .............................. 25
TROUBLESHOOTING
Electrical ............................................................. 26
Engine ......................................................... 27 - 29
WIRING DIAGRAMS
AC Electrical .............................................. 30 - 32
DC Electrical .............................................. 33 - 40