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Suspend exhaust system components beneath the
undercarriage with automotive-type tailpipe hangers
(shock mounted) only.
position directly above exhaust pipe to reduce vibration.
Excessive vibration caused by angular hanger
mounting could cause exhaust pipe damage. If the
tailpipe extends more than 18 in. (45.7 cm) beyond
muffler, attach an additional hanger for support. Use
only automotive-type, U-bolt muffler clamps in exhaust
system installation.
The muffler material must be aluminized steel or other
corrosion-resistant material of welded or crimped
construction. The muffler must be a USDA-approved
type or the muffler must be fitted with a USDA-approved
spark arrestor.
Because of the different locations of mufflers and piping
to these mufflers, follow clearance requirements to
6-16 Installation
NOTE
Position hangers in vertical
NOTE
protect generator set components and to avoid igniting
adjacent combustible materials. A clearance of 1.5 in.
(38 mm) is recommended between exhaust system
parts and fuel system, electrical system, and all
combustible components.
Route the exhaust piping through the compartment floor
or walls provided minimum clearances are maintained
and exhaust piping bends are minimized. Use a tail pipe
as short as possible with as few gradual bends as
possible to reduce back pressure; maximum back
pressure allowed is 21.65 in. water column for the 15 kW
and 11.81 in. water column for the 20 kW. The exhaust
piping must include an exhaust sleeve or thimble when
routed through a combustible wall. Extend tail pipe a
minimum of 1 in. (25 mm) past perimeter of vehicle. If
the generator tail pipe is located on the same side as the
compartment air intake, position tail pipe so exhaust
gases will not be recirculated. Install 1.61 in. I.D. flexible
tubing between the exhaust manifold flange and the
silencer.
TP-5605 4/97
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