PERIODIC MAINTENANCE
JH Series Operation Manual
107
PRECAUTIONS
The Importance of Periodic
Maintenance
Engine deterioration and wear occur in
proportion to the length of time the engine
has been in service and the conditions the
engine is subjected to during operation.
Periodic maintenance prevents
unexpected downtime, reduces the
number of accidents due to poor machine
performance and helps extend the life of
the engine.
Performing Periodic
Maintenance
WARNING
Exhaust Hazard
Never block windows, vents, or other
means of ventilation if the engine is
operating in an enclosed area.
All internal combustion engines create
carbon monoxide gas during operation.
Accumulation of this gas within an
enclosure could cause illness or even
death. Make sure that all connections
are tightened to specifications after
repair is made to the exhaust system.
Failure to comply could result in death
or serious injury.
The Importance of Daily Checks
The Periodic Maintenance Schedule
assumes that the daily checks are
performed on a regular basis. Make it a
habit to perform daily checks before the
start of each operating day.
Keep a Log of Engine Hours and
Daily Checks
Keep a log of the number of hours the
engine is run each day and a log of the
daily checks performed. Also note the
date, type of repair (e.g., replaced
alternator) and parts used for any service
needed between the periodic maintenance
intervals. Periodic maintenance intervals
are every 50, 250, 500 and 1000 engine
hours. Failure to perform periodic
maintenance will shorten the life of the
engine.
NOTICE
Failure to perform periodic maintenance
will shorten the life of the engine and may
void the warranty.
YANMAR Replacement Parts
YANMAR recommends that you use
genuine YANMAR parts when replacement
parts are needed. Genuine replacement
parts help ensure long engine life.
Tools Required
Before you start any periodic maintenance
procedure, make sure you have the tools
you need to perform all of the required
tasks.
Consult Your Authorized
YANMAR Marine Dealer or
Distributor for Help
Our professional service technicians have
the expertise and skills to help you with
any maintenance or service related
procedures you need help with.
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