3512 Industrial Engine Caterpillar

Cylinder Head Assembly

Inspect the cylinder head assembly according to the instructions that are in Caterpillar reusability publications. Refer to Guidelines for Reusable Parts and Salvage Operations, SEBF8029, "Index of Publications on Reusability or Salvage of Used Parts".

Your Caterpillar dealer can provide these services and components. Your Caterpillar dealer can ensure that the components are operating within the appropriate specifications.

The use of out-of-spec parts will cause unscheduled downtime and/or costly repairs.

Fuel Injectors

Replace the fuel injectors. Consult your Caterpillar dealer about exchanging the fuel injectors. Your Caterpillar dealer can provide these services and components.

The wear of fuel injectors is affected by the following considerations:

• Quality of the fuel

• Quality of the filtration of the fuel

The wear of the fuel injectors can result in elevated levels of exhaust emissions and/or poor engine performance. The misfire of a single cylinder is not typically attributed to normal wear. This condition can be repaired by replacing the defective fuel injector.

The following list of circumstances indicate that the fuel injectors should be inspected more frequently:

• Use of fuels that are not recommended in this Operation and Maintenance Manual, "Fuel Specifications"

• Extreme ambient temperatures that reduce the ability of the fuel to provide lubrication

• Frequent plugging of the fuel filters

• Insufficient maintenance of the fuel tank or the fuel storage tank that can allow excessive water, sediment, etc.

• Insufficient maintenance of the fuel filters

Oil Suction Screen

Show/hide table

Hot oil and components can cause personal injury. Do not allow hot oil or components to contact skin.

Clean the oil suction screen after the oil has been drained.

Note: Approximately 1 L (1 qt) of oil will remain in the housing after the sump has been completely drained. This oil will pour out of the housing when the cover is removed. Prepare to catch the oil in a pan. Clean up any spilled oil with rags. DO NOT use absorbent particles to clean up the oil.

1. Remove the screen assembly according to the instructions in the Service Manual, "Disassembly and Assembly" module. Discard the used O-ring seals.

2. Wash the screen assembly in clean nonflammable solvent. Allow the screen assembly to dry before installation.

3. Inspect the screen assembly for good condition. Obtain a new screen assembly, if necessary. Install the screen assembly. Install new O-ring seals.