Checking Diesel Fuel, Engine Oil
and Engine Coolant Levels
Follow the procedures in Filling the Fuel
Tank on page 30, Checking the Engine Oil
on page 33 and Checking Diesel Fuel,
Engine Oil and Engine Coolant Levels on
page 41 to check these levels.
Checking and Refilling Marine
Gear Oil
See Checking Marine Gear Oil on page 35.
Checking the Battery Electrolyte
Level
Check the battery electrolyte level before
use. See Checking the Battery Electrolyte
Level (Serviceable Batteries Only) on page
66.
Checking the Alternator Belt
Check the belt tension before use. See
Checking and Adjusting the Alternator V-
Belt Tension on page 62 .
Checking the Remote Control
Handle
Check the operation of the remote control
handle and ensure it moves smoothly. If it is
hard to operate, grease the joints of the
remote control cable and lever bearings. If
the lever is too loose, adjust the remote
control cable. See Checking and Adjusting
Remote Control Cables on page 63.
Checking the Alarm Indicators
Check the instruments and alarm indicators
at regular intervals.
Preparing Fuel, Oil and Coolant in
Reserve
Prepare sufficient fuel for the day’s
operation. Always store engine oil and
coolant in reserve (for at least one refill) on
board, to be ready for emergencies.
BEFORE YOU OPERATE
JH4 Series Operation Manual 41
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