Operation Manual

EXHAUST SYSTEM
IMPORTANT SAFETY TIPS:
When exhaust system components are not furnished by Power Technology as part of the Genset, the
installer is responsible for meeting the following requirements.
1) Only use exhaust system components, which do not restrict exhaust flow. A restricted exhaust
system will create excessive backpressure and may cause poor engine performance and possible
engine damage. The maximum allowable backpressure for the engines listed in this manual is
1.57in Hg, (40mmHg).
2) Muffler shall be fabricated of aluminized steel or other corrosion resistant material and be of a
welded or crimp construction.
3) Maintain a minimum of 3 inches (76mm) between the exhaust system components and any
surrounding combustible materials. If the minimum clearance cannot be maintained, an
insulating shield must be installed to prevent the combustible material from exceeding
temperatures of 117°F
(65°C) above ambient temperature.
4) Extend the exhaust system a minimum of 1 inch (25mm) beyond the vehicles perimeter. Never
terminate the exhaust system underneath the vehicle.
5) Terminate the exhaust system in a direction, which prevents the exhaust gases from being drawn
back into the generator compartment and re-circulated.
6) If the exhaust system in located in an area which may become susceptible to road damage from
curbs, speed bumps, or other road obstacles a protective device such as a skid bar or plate should
be installed.
7) To prevent excessive movement and vibration of the exhaust system, install hangers and clamps
designed for use in exhaust systems.
8) Never join or tee the generator exhaust system and the vehicle exhaust system together. Doing so
may cause excessive back pressure on the generator engine, also condensation from one engine
can damage the other engine.
WARNING: LETHAL EXHAUST GAS! When installing the exhaust system position the tail pipe end so
that discharged exhaust gases are not drawn into the vehicle interior through windows, doors, air
conditioners, etc. During operation an engine discharges deadly carbon monoxide with its exhaust. Carbon
monoxide is particularly dangerous since it is odorless, tasteless, and non-irritating. It can cause death if
inhaled for even a
short period of time. Be especially careful if operating the generator set when parked under calm, windless
conditions. Gases may accumulate in these conditions. Park your vehicle so that the exhaust discharges
downwind. Always be aware of others in your vicinity. Make sure that your exhaust discharges away from
other vehicles and buildings.
CAUTION: Make sure the exhaust system components are positioned well away from drain openings
beneath the generator set. Also, be sure not to block access to the oil drain plug.
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