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REPAIR MANUAL
EA4300F40B
PS-351
PS-421

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Questions and answers

Bo Clark
February 4, 2025

Bar oil tank leaks

1 comments:
Mr. Anderson
February 10, 2025

To fix a leaking bar oil tank on a Makita DOLMAR EA4300F40B, follow these steps:

1. Identify the Leak: Perform a pressure test by sealing the pulse line and pressurizing the crankcase to a maximum of 0.3 bar. If pressure rises within 20 seconds, check for leaks in the oil tank.

2. Check Possible Causes:
- Inspect the oil tank for visible cracks.
- Check the oil pump and its connections.
- Examine the oil guide groove for dirt or blockages.

3. Repair or Replace:
- If the oil tank has a small crack, use an appropriate sealant or epoxy to seal it.
- If the tank is heavily damaged, replace it with an original Makita part.
- Clean any clogged oil guide grooves.
- Adjust the oil-pump screw if necessary.

4. Reassemble and Test:
- Reassemble the parts securely.
- Fill the tank with bar oil and test for leaks before using the chainsaw.

If the issue persists, consult a Makita service center for professional repair.

This answer is automatically generated

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