HUB AS 4864440 - Caterpillar

Removal Procedure
Start By:
Remove the lifters. Refer to Disassembly and Assembly, "Lifter Group - Remove and Install".
Remove the fuel injection pump. Refer to Disassembly and Assembly, "Fuel Injection Pump - Remove".
Remove the fuel transfer pump. Refer to Disassembly and Assembly, "Fuel Transfer Pump - Remove".
Remove the front housing. Refer to Disassembly and Assembly, "Housing (Front) - Remove".
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, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Illustration 1 g01201592
Typical example
Remove slider (1) from camshaft gear (4) .
Rotate the crankshaft until timing marks (2) on the following components are aligned. Note: The No. 1 cylinder is at the top center position when these marks are in alignment. Refer to Illustration 1.
Camshaft gear (4)
Idler gear (5)
Crankshaft gear (3)
Illustration 2 g01201596
Typical example
Personal injury can result from parts and/or covers under spring pressure.Spring force will be released when covers are removed.Be prepared to hold spring loaded covers as the bolts are loosened.
Remove retaining ring (13) that retains idler gear (5) on idler hub (6) .
Remove the following items from idler hub (6) :
Collar (12)
Spring (11)
Shim (10)
Oil pump cover (9)
Inner rotor (8)
Remove idler gear (5) from idler hub (6) .
Remove thrust washer (7) from idler hub (6) .
Illustration 3 g01201600
Typical example
Rotate camshaft gear (4) in order to align access hole (16) in the camshaft gear with bolt (14). Remove bolt (14) and bolt (15) from camshaft retainer (17) .
Illustration 4 g01201605
Typical example
Carefully remove camshaft gear (4) and camshaft (18) from cylinder block (19). Be careful not to damage the lobes of the camshaft or the camshaft bearings.
Inspect the components for wear or damage. Replace the components that are worn or damaged.