Kohler 7ER, Installation Manual

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TP-6034 10/02 10 Fuel System
5.2 Fuel Lines
Note: Keep fuel lines away from the exhaust system.
Routing fuel lines. Take care when routing the fuel line
from the fuel tank to the generator set. Keep the fuel
lines as short as possible but maintain adequate
clearance from the exhaust system. Route the fuel lines
along the frame or undercarriage—never route the fuel
lines inside the habitable area of the vehicle. Locate the
fuel lines with the entry point near the fuel pump. See
Section 5.3 for the fuel pump lift.
Sizing fuel lines. Size the fuel line to handle the flow of
fuel and to withstand road shock and year-round climate
conditions. Use steel tubing as the codes require. Use a
6 mm (1/4 in.) ID tubing with an 230 mm (8 in.)
(minimum) flexible section to allow free movement of the
generator set.
Fuel line size:
Fuel inlet 6 mm (1/4 in.) ID
Flexible hose sections. If a metal fuel line draws fuel
from the fuel tank, install a flexible hose section to
connect the metal line to the fuel pump. The flexible
section allows generator set vibrational motion during
operation.
See Section 7 for the fuel inlet-line
connection point.
Note: Gasoline-fueled engines require a type A1 hose.
5.3 Fuel Pump Lift and Fuel
Consumption
See Figure 5-2 for the fuel pump lift capability. Consult
the current generator set specification sheet for the
generator set fuel consumption rates. Do not exceed
3 1/2 psi fuel pump pressure to the carburetor.
Note: Fuel system alterations may adversely affect
emissions
levels. Fines resulting from
higher-than-allowable emissions levels are the
responsibility of the user.
Model
Fuel Pump Lift
m (ft.)
7ER 0.9 (3)
Figure 5-2 Fuel Pump Lift Capability (Max.)
5.4 Fuel Filters or Strainers
These generator sets are shipped with a fuel filter. No
additional fuel filter or strainer is required.
1
ADV-6450-E
1. Fuel filter
Figure 5-3 Fuel Filter Location