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• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Safety – iii
Safety Precautions
!
• Do not position head directly over or in front of throttle
body. Do not pour gasoline down throttle body when
cranking or running engine, when working with fuel deliv-
ery systems or any open fuel line. Engine backfire can
occur when air cleaner is out of position.
• Do not use fuel injector cleaning solvents when perform-
ing diagnostic testing.
• Keep cigarettes, sparks, open flame and other sources of
ignition away from vehicle.
• Keep a dry chemical (Class B) fire extinguisher rated for
gasoline, chemical and electrical fires in work area.
Fire can cause death or serious injury.
Risk of flying particles.
Wear safety goggles while using electrical equipment. Elec-
trical equipment or rotating engine parts can cause flying
particles.
Flying particles can cause eye injury.
Risk of burns.
Batteries can produce a short-circuit current high enough
to weld jewelry to metal. Remove jewelry such as rings,
bracelets and watches before working near batteries.
Short circuits can cause injury.
Risk of burns.
• Do not remove radiator cap unless engine is cold. Pres-
surized engine coolant may be hot.
• Do not touch hot exhaust systems, manifolds, engines,
radiators, sample probe, etc.
• Wear insulated gloves when handling hot engine compo-
nents.
• Tester leads can become hot after extended testing in
close proximity to manifolds etc.
Hot components can cause injury.
Risk of expelling fuel, oil vapors, hot steam, hot toxic exhaust
gases, acid, refrigerant and other debris.
• Wear safety goggles and protective clothing, user and
bystander. Everyday eyeglasses only have impact resis-
tant lenses, they are NOT safety glasses.
• Engine systems can malfunction expelling fuel, oil
vapors, hot steam, hot toxic exhaust gases, acid, refriger-
ant and other debris.
Fuel, oil vapors, hot steam, hot toxic exhaust gases, acid,
refrigerant and other debris can cause serious injury.
The engine compartment contains electrical connections and
hot or moving parts.
• Keep yourself, test leads, clothing and other objects clear
of electrical connections and hot or moving engine parts.
• Do not wear watches, rings, or loose fitting clothing when
working in an engine compartment.
• Do not place test equipment or tools on fenders or other
places in the engine compartment.
• Barriers are recommended to help identify danger zones
in test area.
• Prevent personnel from walking through immediate test
area.
Contact with electrical connections and hot or moving parts
can cause injury.
!
WARNING