Northern Lights LUGGER L6140A, Operator'S Manual

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O6140 03/03
4
INTRODUCTION
Servicing of marine engines and generator sets
presents unique problems. In many cases boats
cannot be moved to a repair facility. Marine
engines cannot be compared to the servicing of
automobiles, trucks or even farm equipment.
Failures often occur in remote areas far from
competent assistance. Marine engines are taxed
far more severely than auto or truck engines;
therefore, maintenance schedules must be
adhered to more strictly. Failures usually begin with minor problems that become ampli fi ed
when not corrected during routine mainte-
nance.
As owner-operator, it is your obligation to
learn about your equipment and its proper
maintenance. This manual is not a comprehen-
sive technical service manual. Nor will it make
the reader into an expert mechanic. Its aim is
to aid you in maintaining and servicing your
equipment properly.
Northern Lights aftercooled-turbocharged 1200
RPM marine diesel generator set. Komatsu 6140
block.
Northern Lights turbocharged-aftercooled 1500 or
1800 RPM industrial diesel generator set.
Komatsu 6140 block.
NL 6140 A
M 6140 QA
L - Lugger marine propulsion engine Model number of A - Aftercooled (turbo)
M - Northern Lights marine generator set Komatsu engine block AL2 - Aftercooled (turbo-
NL - Northern Lights industrial generator set 6 cylinder, 140 mm bore low profi le)
D - Naturally aspirated
T - Turbocharged
QA - 1200 RPM (Aftercooled)
MODEL NUMBER
Model numbers give unit's application, block model, aspiration and RPM:
L - M - NL 6140 AL, D, T, & Q
UNIT IDENTIFICATION
Lugger turbocharged-aftercooled marine propulsion
engine. Komatsu 6140 block. (low profi le)
Lugger turbocharged-aftercooled marine propulsion
engine. Komatsu 6140 block. (high profi le)
Northern Lights turbocharged 1500 or 1800 RPM
marine diesel generator set. Komatsu 6140 block.
SERIAL NUMBERS
When referencing Alaska Diesel Electric equipment by serial number, refer only to the number
stamped on the Lugger or Northern Lights serial number plate.
L 6140 AL2
M 6140 AL2
L 6140 A