Removal Procedure
Required Tools     | |||
Tool     | Part Number     | Part Description     | Qty     |
A     | 1P-0520     | Driver Gp     | 1     |
Start By:
- Remove the front housing. Refer to Disassembly and Assembly, "Housing (Front) - Remove".
NOTICE |
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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
NOTICE |
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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 Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates. |
- Rotate the crankshaft until the number one piston is at the top center position. Timing mark (4) for camshaft idler gear (2) should be in line with timing mark (5) for crankshaft drive gear (6). Identify the location of timing mark (4) for camshaft idler gear (2) and timing mark (5) for crankshaft drive gear (6) .
Illustration 1 | g00616185 |
- Remove the bolts that fasten plate (1) to idler shaft (3). Remove plate (1) .
- Slide camshaft idler gear (2) from idler shaft (3) .
Illustration 2 | g00616226 |
- Remove the bolt and idler shaft (3) from the cylinder block.
- Use Tooling (A) and a suitable press to remove the bearing from camshaft idler gear (2) .
Illustration 3 | g00616240 |
Installation Procedure
Required Tools     | |||
Tool     | Part Number     | Part Description     | Qty     |
A     | 1P-0520     | Driver Gp     | 1     |
NOTICE |
---|
Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
- Use Tooling (A) and a suitable press to install the bearing in camshaft idler gear (2). Install the bearing until the bearing is 0.40 ± 0.25 mm (0.016 ± 0.010 inch) below the front face of camshaft idler gear (2) .
Illustration 4 | g00616240 |
- Ensure that oil supply passages (7) in the cylinder block and idler shaft (3) are in the correct position. Position idler shaft (3) on the cylinder block. Install the bolt that holds idler shaft (3) to the cylinder block. Tighten the bolt to a torque of 70 ± 15 N·m (51 ± 11 lb ft).
Illustration 5 | g00616246 |
- Install camshaft idler gear (2) on idler shaft (3). Ensure that timing mark (4) for camshaft idler gear (2) is facing outward. Align the identified timing mark (4) for camshaft idler gear (2) with the identified timing mark (5) for crankshaft drive gear (6) .
Illustration 6 | g00616185 |
- Position plate (1) and install the bolts. Tighten the bolts to a torque of 70 ± 15 N·m (51 ± 11 lb ft).
End By: Install the front housing. Refer to Disassembly and Assembly, "Housing (Front) - Install".