FAN GP 3114640 - Caterpillar

Removal Procedure
Start By:
Remove the front housing. Refer to Disassembly and Assembly, " Housing (Front) - Remove".
Remove the rocker shaft assembly and the pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Remove".
Remove the oil pan. Refer to Disassembly and Assembly, "Engine Oil Pan - Remove and Install". Note: In this removal procedure, the engine needs to be placed in the upside-down position. This will allow the lifters to remain in position after the camshaft is removed.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Illustration 1 g00569371Note: Ensure that the marks on the timing gears are in alignment. Align the "3" mark on fuel injection drive gear (A) with the "33" mark on idler gear (B). Make an alignment of the "22" mark on camshaft gear (C) with the "2" mark on idler gear (B). Align the "1" mark on crankshaft gear (D) with the "11" mark on idler gear (B). The No. 1 cylinder is at the top center