SHAFT 9W8434 - Caterpillar

Do not use more than 55 kPa (8 psi) of air pressure in the fuel tank or damage to the tank may result.
If there is no flow or a weak flow of fuel from the supply line, clean or replace plugged lines.d. Check fuel transfer pump pumping gears and drive gear on the camshaft. Repair or replace as necessary. See 3176 Vehicular Diesel Engine Disassembly and Assembly, Form No. SENR4965.e. Drain the fuel manifold, remove each unit injector