TK 56701-1-IM-EN
45
Installing Fuel Pump and Fuel Lines
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1. Install fuel pump as close to fuel tank as possible and no more than 762 mm (30.00 in.) above the fuel in fuel tank.
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a. Secure pump to vehicle’s chassis cross members with supplied mounting bracket and hardware.
IIm
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ntt:: Some installation will require the fuel pump harness be extended. An Optional Extended Chassis
Harness is available that includes a 22 ft. long fuel pump harness.
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No
otte
e:: DO NOT connect unit fuel lines to any truck fuel lines.
Always follow these standards when installing and routing fuel lines:
a. Fuel lines must be routed in split loom protective sleeving with no kinks or sharp bends.
b. Rubber grommets must be used when routing fuel lines through sheet metal.
c. All fuel lines must be secured with provided clamps.
2. S
Su
up
pp
plly
y L
Liin
ne
e from tank to pump — Install fuel line from fuel pickup (supply) fitting to fuel pump (IN) fitting.
3. S
Su
up
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plly
y L
Liin
ne
e from pump to engine — Connect fuel line from fuel pump (OUT) fitting to unit.
4. R
Re
ettu
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n L
Liin
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e from engine to tank — Connect fuel return line from unit to fuel pickup (return) fitting.
5. Rotate the fuel tank air vent towards the rear of the truck and remove the plastic end cap.
IIm
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ntt:: The factory installed fuel tank air vent must be in place and functional for the Thermo King unit’s fuel
system to operate correctly and for the fuel tank to remain in compliance with Federal Motor Carrier Safety
Administration specifications (title 49, paragraph 393.67). A plugged or restricted fuel tank air vent can
result in premature damage to the fuel pump and could also cause severe damage to the fuel tank. NEVER
remove or install any other component in place of the fuel tank air vent.
Figure 30.
Typical Installation Shown
RCS1110-3
