Before You Begin Servicing - Yanmar BY Series Service Manual

PERIODIC MAINTENANCE
BEFORE YOU BEGIN
SERVICING
A
DANGER
EXPLOSION HAZARD!
• Keep the area around the battery
well-ventilated. While the engine is
running or the battery is charging,
hydrogen gas is produced which can
be easily ignited.
• Keep sparks, open flame and any other
form of ignition away while the engine
is running or battery is charging.
• Failure to comply will result in death or
serious injury.
A
DANGER
EXPLOSION HAZARD!
• NEVER check the remaining battery
charge by shorting out the terminals.
This will result in a spark and may
cause an explosion or fire. Use a
hydrometer to check the remaining
battery charge.
• If the electrolyte is frozen, slowly warm
the battery before you recharge it.
• Failure to comply will result in death or
serious injury.
4-2
• NEVER remove the coolant filler cap if
the engine is hot. Steam and hot
engine coolant will escape and
seriously burn you. Allow the engine
to cool before attempting to remove
the filler cap.
• Securely tighten the filler cap after
checking the coolant level. Steam can
escape during engine operation if the
cap is loose.
• Failure to comply will result in death or
serious injury.
0000003en
FIRE AND EXPLOSION HAZARD!
• Diesel fuel is flammable and explosive
under certain conditions.
• Before you operate the engine, check
for fuel leaks. Replace rubberized fuel
hoses every two years or every 500
hours of engine operation, whichever
comes first, even if the engine has
been out of service. Rubberized fuel
lines tend to dry out and become
brittle after two years or 500 hours of
engine operation, whichever comes
first.
0000007en
• Failure to comply will result in death or
serious injury.

Before You Begin Servicing

A
DANGER
SCALD HAZARD!
A
DANGER
BY Service Manual
0000002enMarine
0000015enBY