Page 324 - Mechanic Diesel - TT

MECHANIC DIESEL - CITS

Dismantling of distributor type Pump

Following is the method of dismantling distributor type fuel pump.
Prepare: Make sure the pump is disconnected from any power source and that the area is clean and safe to work
in.
Remove the cover: Begin by removing the pump’s cover or casing to access the internal components.

Disconnect the power: If the pump is electrically powered, disconnect any electrical connections or wires.
Remove the impeller: Depending on the type of pump, you may need to remove the impeller. This may involve
unscrewing the nuts or bolts holding it in place.

Take apart the main mechanism: Take apart the pump’s housing to access the distributor mechanism.
• Take apart and inspect the lever
• Open and inspect the governor assembly
• Open and check the timing device
• Open and inspect the delivery valve
Take apart the distributor: Carefully remove the distributor assembly, paying attention to how it is positioned
and any components attached to it.
Inspect the Components: After removing the distributor, inspect each component for wear, damage or buildup
that could affect the pump’s performance.
Clean the Components: Clean all components thoroughly using appropriate solvents or cleaning agents to
remove any debris or buildup.
Inspection and Replace or Repair: Replace any damaged components or repair any worn parts as needed.
Assembling distributor pumps: Once all components have been cleaned and inspected, reassemble the pump
in the reverse order of disassembly, making sure everything is properly aligned and tightened.

Assembling a distributor pump requires precision and care. Here are general following steps
Clean: Make sure the workplace and components are clean to prevent contamination.
Inspect the parts: Check all parts for damage or wear. Replace any defective components.
Assemble the components: Follow the manufacturer’s instructions to assemble the pump components in the
correct order.
Lubrication: Apply appropriate lubricant to moving parts to ensure smooth operation.
Tighten the bolts: Use a torque wrench to tighten the bolts to the specified torque values. Over-tightening can
damage parts.
Testing: After assembly, test the pump to make sure it works correctly and does not leak.
Quality check: Perform a final inspection to make sure everything is assembled correctly and meets quality
standards.

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CITS : Automotive - Mechanic Diesel - Lesson 96 & 97