Maintenance manual for sunray hfc4da1-2c china-IV diesel engines
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v. Disassemble the fixing bolts of engine oil filter and
remove the engine oil filter.
w. Use an open-end wrench to disassemble the engine oil
pressure connector and remove the connector and
lubricating oil pipe.
x. Loosen the fixing nuts of fuel injection pump gear,
remove the hexagon socket fixing bolts of fuel
injection pump and the fixing nuts of fuel injection
pump gear, knock lightly the fuel injection pump gear
shaft with rubber hammer, remove the fuel injection
pump and fuel injection pump gear, and install the fuel
injection pump protective sleeve. The fuel injection
pump shall be insulated from the air and dust.