Trane Thermo King TriPac EVOLUTION - Alternative Installation - Drilling Hole In Fuel Tank

TK 55676-19-IM-EN
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Alternative Installation – Drilling Hole In Fuel Tank
NNoottee:: Some OEM’s offer a fuel tank option which provides three auxiliary fuel fitting connections. With this option, the
fuel pickup tube and adapter plate are not needed. Simply route and connect the APU’s fuel supply and return
lines and the heater’s fuel supply line to these fittings. Always check your fuel tank for these fittings before
installing the fuel pickup tube or adapter plate.
DDAANNGGEERR
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DDAANNGGEERR
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Special Tools Required
Tape Measure
Drill Motor
Step Reamer Bit
1-1/4” Hole Saw
Tubing Cutter
Heavy Grease
Torque Wrench
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• Identify and mark APU FUEL SUPPLY pickup tube for reference later.
• Remove protective caps from ends of pickup tubes prior to installation.
• Do not apply any type of sealant material to fuel pickup assembly. Doing so will result in plugged fuel lines.
• Check for internal baffles in fuel tank BEFORE drilling any holes.
1. Tape paper template (supplied with pickup tube) onto tractor’s fuel tank and center punch three holes. Remove
template from tank.
2. Drill a 1/4” pilot hole then drill:
a. 1/2” diameter outer holes first with step reamer.
b. 1-1/4” diameter inner hole next with hole saw.
c. Thoroughly clean and flush the tank to remove any chips.
3. The APU diesel engine fuel supply tube is 24” and the heater fuel supply tube is 23”.
a. Measure and cut APU diesel fuel supply tube 2” shorter than fuel tank diameter.
b. Measure and cut heater fuel supply tube 3” shorter than fuel tank diameter. The heater fuel supply tube is
identified by not having a fitting.
4. Loosen and slide hardware to top of pickup tube assembly.
5. Spread pickup tubes approximately 12” apart then squeeze pickup tubes back together and insert tubes and
bushing into hole of adapter plate.
6. Tip back-up washer and insert it to fuel tank hole.
a. With back-up washer on underside of fuel tank hole, thread nut onto bushing and hand tighten.
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