Onan NHC User Manual

it is recommended that you read your engine manual and
become thoroughly acquainted with your equipment before
you start the engine.
FuelSysiem
• DO NOT fill fuel tanks while engine is running.
This symbol if used warns of imme¬
diate hazards which will result in
severe personal injury or death.
This symbol refers to a hazard or
unsafe practice which can result in
severe personal injury or death.
DO NOT smoke or use an open flame in the vicinity of the
engine or fuel tank. Internal combustion engine fuels are
highly flammable.
Fuel lines must be of steel piping, adequately secured,
and free from leaks. Piping at the engine should be
approved flexible line. Do not use copper piping for
flexible lines as copper will work harden and become
brittle enough to break.
This symbol refers to a hazard or
unsafe practice which can result in
or product or property damage.
Fuels, electrical equipment, batteries, exhaust gases and
moving parts present potential hazards that can result in
serious, personal injury. Take care in following these recom¬
mended procedures. All local, state and federal codes should
be consulted and complied with.
• Be sure all fuel supplies have a positive shutoff valve.
Exhaust System
• Exhaust products of any internal combustion engine are
toxic and can cause injury, or death if inhaled. All engine
applications, especially those within a confined area,
should be equipped with an exhaust system to discharge
gases to the outside atmosphere.
• Do not use exhaust gases to heat a compartment
ACAUTION
personal injury
AWARNING en 9 me is not designed or in- • Make sure that your exhaust system is free of leaks.
- - tended for use in any type of aircraft . Ensure that exhaust manifolds are secure and are not
Use of this engine in aircraft can result in engine failure warped by bolts unevenly torqued.
and causes serious personal injury or death.
Exhaust Gas is Deadly!
General Exhaust gases contain carbon monoxide, a poisonous gas
• Provide appropriate fire extinguishers and install them in that c an cause unconsciousness and death. It is an odorless
convenient locations. Use an extinguisher rated ABC by anc * colorless gas formed during combustion of hydrocarbon
(sjfpa. fuels. Symptoms of carbon monoxide poisoning are:
• Make sure that all fasteners on the engine are secure and
accurately torqued. Keep guards in position over fans,
driving belts, etc.
• If it is necessary to make adjustments while the engine is
running, use extreme caution when close to hot exhausts,
moving parts, etc.
Protect Against Moving Parts
• Do not wear loose clothing in the vicinity of moving parts,
such as PTO shafts, flywheels, blowers, couplings, fans,
belts, etc.
• Dizziness • Vomiting
• Headache • Muscular Twitching
• Weakness and Sleepiness • Throbbing in Temples
If you experience any of these symptoms, get out into fresh air
immediately, shut down the unit and do not use until it has
been inspected.
The best protection against carbon monoxide inhalation is
proper installation and regular, frequent inspections of the
complete exhaust system. If you notice a change in the sound
or appearance of exhaust system, shut the unit down
immediately and have it inspected and repaired at once by a
competent mechanic.
• Keep your hands away from moving parts.
Batteries
• Before starting work on the engine, disconnect batteries
to prevent inadvertent starting of the engine.
• DO NOT SMOKE while servicing batteries. Lead acid
batteries give off a highly explosive hydrogen gas which
can be ignited by flame, electrical arcing or by smoking.
• Verify battery polarity before connecting battery cables.
Connect negative cable last
Cooling System
• Coolants under pressure have a higher boiling point than
water. DO NOT open a radiator pressure cap when
coolant temperature is above 212°F (100°C) or while
engine is running.
Keep the Unit and Surrounding Area Clean
• Make sure that oily rags are not left on or near the engine.
• Remove all unnecessary grease and oil from the unit.
Accumulated grease and oil can cause overheating and
subsequent engine damage and present a potential fire
hazard.
E-6

Onan NHC Specifications

General

Brand	Onan
Model	NHC
Category	Engine
Language	English