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GUARD AS-FAN 3967736 - Caterpillar

3967736 GUARD AS-FAN Caterpillar parts GUARD
Alternative (cross code) number:
Caterpillar 3967736 GUARD AS-FAN
Weight: 9 pounds 4 kg.

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Illustration 1. Oil pump cover specifications.2. Check for grooves on the face. Grooves which connect the oil passages are not acceptable because they will permit oil to leak between the passages. See Illustration 2. The face of this cover must be machined.If small grooves are present and they do not connect the oil passages, the cover be used again. See Illustration 3.
Later oil pump covers have an O-ring groove in the face. If more than .13 mm (.005") of material is removed from the face of one of these covers, the O-ring groove will also have to be machined. See Illustration 1.
Illustration 2. Grooves that connect the oil passages; cover must be machined.
Illustration 3. Normal wear; use again.3. Check the pressure valve seat area. Cracks or gouges (deep scratches) are not permitted in this area. See Illustration 4.
Illustration 4. Cracks or gouges; do not use again.Even wear in the seat area is acceptable and the cover can be used again. See Illustration 5. Some oil leakage in the seat area is permitted.
Illustration 5. Normal wear; use again.This article is only to be used as a general guide to find if oil pump covers can be used again. Remember, each part may not be exactly like those shown.

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