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Makita Jack Hammer HM1203C 2010 Barrel Service

Prerequisite Only
This guide is only intended to be used as a prerequisite for other guides. It's incomplete by itself.

Introduction

Service the parts in the barrel of the Makita Jack Hammer HM1203C 2010.

Wherever there’s grease, make sure to clean it off and replace it with new grease. The recommended grease is Makita 181490-7.

What you need

  1. Makita Jack Hammer HM1203C 2010 Barrel Service, Remove the side handle: step 1, image 1 of 1

    • Unscrew the knob securing the side handle.

    Edit

  2. Makita Jack Hammer HM1203C 2010 Barrel Service: step 2, image 1 of 2 Makita Jack Hammer HM1203C 2010 Barrel Service: step 2, image 2 of 2

    • Remove the bolt securing the side handle.

    • Remove the side handle.

    Edit

  3. Makita Jack Hammer HM1203C 2010 Barrel Service, Disassemble the front end: step 3, image 1 of 3 Makita Jack Hammer HM1203C 2010 Barrel Service, Disassemble the front end: step 3, image 2 of 3 Makita Jack Hammer HM1203C 2010 Barrel Service, Disassemble the front end: step 3, image 3 of 3

    • Use a small pry bar or flathead screwdriver to pry the rubber front cap off of the hammer.

    • This can be replaced as part of a service kit.

    Edit

  4. Makita Jack Hammer HM1203C 2010 Barrel Service: step 4, image 1 of 2 Makita Jack Hammer HM1203C 2010 Barrel Service: step 4, image 2 of 2

    • Use a pair of snap ring pliers to expand the snap ring on the front of the hammer.

    • Remove the snap ring.

    Edit

  5. Makita Jack Hammer HM1203C 2010 Barrel Service: step 5, image 1 of 1

    • Remove the washer on the front of the hammer.

    Edit

  6. Makita Jack Hammer HM1203C 2010 Barrel Service: step 6, image 1 of 1

    • Lift the front cover off of the front of the hammer.

    Edit

  7. Makita Jack Hammer HM1203C 2010 Barrel Service: step 7, image 1 of 1

    • Lift the rubber ring off of the front of the hammer.

    Edit

  9. Makita Jack Hammer HM1203C 2010 Barrel Service: step 8, image 1 of 1

    • Remove the inner front cover.

    Edit

  10. Makita Jack Hammer HM1203C 2010 Barrel Service: step 9, image 1 of 3 Makita Jack Hammer HM1203C 2010 Barrel Service: step 9, image 2 of 3 Makita Jack Hammer HM1203C 2010 Barrel Service: step 9, image 3 of 3

    • Compress the spring and hold it down while you pull the two retainers out of their slots and remove them.

    Edit

  11. Makita Jack Hammer HM1203C 2010 Barrel Service: step 10, image 1 of 2 Makita Jack Hammer HM1203C 2010 Barrel Service: step 10, image 2 of 2

    • Remove the spring guide.

    • Remove the spring.

    Edit

  12. Makita Jack Hammer HM1203C 2010 Barrel Service, Remove the barrel: step 11, image 1 of 2 Makita Jack Hammer HM1203C 2010 Barrel Service, Remove the barrel: step 11, image 2 of 2

    • Remove the front barrel cover.

    Edit

  13. Makita Jack Hammer HM1203C 2010 Barrel Service: step 12, image 1 of 1

    • Remove the 4 mm hex bolt securing the barrel cover.

    Edit

  14. Makita Jack Hammer HM1203C 2010 Barrel Service: step 13, image 1 of 2 Makita Jack Hammer HM1203C 2010 Barrel Service: step 13, image 2 of 2

    • Lift the barrel cover straight up and remove it.

    Edit

  15. Makita Jack Hammer HM1203C 2010 Barrel Service: step 14, image 1 of 2 Makita Jack Hammer HM1203C 2010 Barrel Service: step 14, image 2 of 2

    • Use a pair of snap ring pliers to expand the snap ring securing the bolt holder.

    • Remove the snap ring.

    Edit

  16. Makita Jack Hammer HM1203C 2010 Barrel Service: step 15, image 1 of 2 Makita Jack Hammer HM1203C 2010 Barrel Service: step 15, image 2 of 2

    • Lift the washer off of the bolt holder and remove it.

    Edit

  17. Makita Jack Hammer HM1203C 2010 Barrel Service: step 16, image 1 of 1

    • Remove four 6 mm hex bolts securing the barrel.

    Edit

  18. Makita Jack Hammer HM1203C 2010 Barrel Service: step 17, image 1 of 2 Makita Jack Hammer HM1203C 2010 Barrel Service: step 17, image 2 of 2

    • Lift the barrel straight up and remove it.

    Edit

  19. Makita Jack Hammer HM1203C 2010 Barrel Service, Remove the rubber ring 39: step 18, image 1 of 3 Makita Jack Hammer HM1203C 2010 Barrel Service, Remove the rubber ring 39: step 18, image 2 of 3 Makita Jack Hammer HM1203C 2010 Barrel Service, Remove the rubber ring 39: step 18, image 3 of 3

    • Use an angled pick to pull the washer and rubber ring 39 out of the barrel.

    Edit

  20. Makita Jack Hammer HM1203C 2010 Barrel Service: step 19, image 1 of 1

    • Remove the rubber ring 39.

    • This can be replaced as part of a service kit.

    Edit
Conclusion

To reassemble your device, follow these instructions in reverse order.

Author

Adam O'Camb

Member since: 04/11/15

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