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2025年11月10日星期一

How to disassemble the oil pump of a 320D2 EXCAVATOR DNP engine

 Begin: 

 a. Remove the engine oil pan. See Disassembly and Assembly, "Engine Oil Pan - Removal".

Caution Keep all parts clean and free of contaminants. 

Contaminants cause rapid wear and shorten component life.

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Caution When inspecting, maintaining, testing, adjusting, and repairing products, always ensure that fluids are contained in containers. Before opening any chambers or disassembling any fluid-containing components, prepare to collect the fluid in a suitable container. 

Dispose of all fluids in accordance with local regulations and instructions. 

 

 
1. Remove bolts (2) and the suction pipe (1). 
 
 2. Remove the gasket (3) (not shown). 
 
3. Remove bolts (5). Remove the engine oil pump assembly (4) from the cylinder block.  
 
 
 
4. If necessary, remove bolts (10) from the engine oil pump front cover assembly (6). 
 
5. Remove the front cover assembly (6) from the engine oil pump (4).  
 
6. Make temporary marks on the outer rotor (7). Remove the outer rotor (7) from the housing of the engine oil pump (4). 
 
7. Do not remove the locating pins (8) and (9) from the engine oil pump housing unless the locating pins are damaged.
 

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How to handle the Caterpillar 311B Excavator 2LS MID161-CID1251-FMI03 fault

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