Product Overview; Yanmar Jh Series Features And Applications - Yanmar 3JH5E Operation Manual

PRODUCT OVERVIEW

YANMAR JH SERIES
FEATURES AND
APPLICATIONS
The JH series are four-stroke direct injection
diesel engines equipped with liquid coolant
systems.
The 3JH5E is 3-cylinder and naturally
aspirated.
The 4JH5E is 4-cylinder and naturally
aspirated.
The 4JH4–TE is 4-cylinder and
turbocharged.
The 4JH4–HTE is 4-cylinder and
turbocharged with an intercooler.
The engines are equipped with a marine
gear or sail drive unit.
These engines are designed for pleasure
craft use.
It is recommended that new vessels be
propped so the engines can operate at 100
to 200 rpm above the fuel stop power rpm to
allow for some added weight and hull
resistance.
Failure to do so can lead to reduced vessel
performance, lead to increased smoke
levels and cause permanent damage to your
engine.
JH Series Operation Manual
The engine must be installed correctly with
coolant lines, exhaust gas lines and
electrical wiring. Any auxiliary equipment
attached to the engine should be easy to use
and accessible for service. To handle the
drive equipment, propulsion systems
(including the propeller) and other onboard
equipment, always observe the instructions
and cautions given in the operation manuals
supplied by the shipyard and equipment
manufacturers.
The JH series engines are designed to be
operated at maximum throttle
(3000 to 3200 rpm) for less than 5% of total
engine time (30 minutes out of every 10
hours) and cruising speed (2800 rpm or
less) for less than 90% of total engine time
(9 hours out of every 10 hours).
The laws of some countries may require hull
and engine inspections, depending on the
use, size and cruising area of the boat. The
installation, fitting and surveying of this
engine all require specialized knowledge
and engineering skills. See Yanmarʼs local
subsidiary in your region or your authorized
Yanmar Marine dealer or distributor.
© 2009 Yanmar Marine International
15