EXTENSION AS 8H8575 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 8T-3029 Camshaft Support 1
1U-6311 Plate 1 Start By:
Remove the valve lifters. Refer to Disassembly and Assembly, "Valve Lifter - Remove".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g00575670
Illustration 2 g00575675
Remove the camshaft inspection covers from the side of the cylinder block. Note: The engine must be rotated in order to remove all of the bolts that hold camshaft segment (4) in position.
Loosen bolts (1) on the outside of camshaft segment (4).
If it is necessary to remove camshaft journal (2), loosen bolts (3) on the outside diameter.
Rotate the engine until bolts (1) and bolts (3) that were toward the inside of the cylinder block are on the outside.
Loosen remaining bolts (1) and bolts (3).
Illustration 3 g00615465Note: The engine cannot be rotated after camshaft drive gear (5) is removed. Be sure that all of the necessary bolts have been loosened before the camshaft drive gear is removed.
Remove camshaft drive gear (5), if shaft assembly (6) will be removed. Refer to Disassembly and Assembly, "Camshaft Drive Gear - Remove" for additional information.
Illustration 4 g00575676
Install Tooling (A) under camshaft segment (4).
Remove bolts (1) that hold the camshaft segment in position.
Carefully move the front section of the camshaft toward the front of the engine. This is done in order to disengage the dowels in each end of the camshaft segment.
Carefully move camshaft segment (4) out of the engine on Tooling (A).
Attach a suitable lifting device to camshaft segment (4). The weight of camshaft segment (4) is approximately 28 kg (62 lb). Remove camshaft segment (4) from Tooling (A). Put identification marks on the camshaft segment for proper installation.
Remove the spacers from each camshaft journal. Remove Tooling (A) from the engine.
Remove bolts (3) that hold camshaft journal (2) to the other camshaft segment.
Slide camshaft journal (2) out of the camshaft bearing. Remove the camshaft journal from the engine. Remove the spacer from the journal.
Illustration 5 g00615468
Remove the bolts and plate (8) from shaft assembly (6).
Remove the bolts and plate assembly (7).
Remove the bolts that hold shaft assembly (6) to the camshaft segment. Remove the shaft assembly.
Remove the spacer from the shaft assembly.