Makita Hammer Drill Repair - How to Replace the Gear Assembly
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- Опубліковано 6 лют 2025
- Need help replacing the Gear Assembly (Part # 126460-9) in your Makita Hammer Drill? Watch this how-to video with simple, step-by-step instructions for a successful DIY repair.
Don’t already have this part? You can pick up an authentic OEM part sourced directly from the original manufacturer here:
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Fix Part Number: FIX10138886
OEM Part Number: 126460-9
Why you might need to replace the Gear Assembly:
1.Motor Spins But Chuck Does Not
2. Grinding Sound From Transmission
3. Weak or Slipping Clutch
The information in this video is specific to Makita Hammer Drills. To find the Gear Assembly specific to your model Hammer Drill, or to use our helpful model number locator, visit www.fix.com
Not what you’re looking for? For more Hammer Drill repair help click here: www.fix.com/pa...
For more helpful Hammer Drill Repair videos, you can browse through the Power Tool Repair playlist on our UA-cam channel: • Makita Angle Grinder R...
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You just saved me $50-$60. My problem was not the clutch slipping, it was the speed-selector in the middle. UA-cam saved the day once again with great how-to videos.
Bardzo pomocne dla
Mnie
Thank you for the note about the gear selector being between settings producing symptoms similar to a bad gear set. It saved me some heart ache, time, and money at a crucial time.
It was the selector switch in a goofy spot. Saved me grief. Many thanks
The chuck WILL NOT just come apart with a tap of the hammer if your drill has seen any use. Luckily you're already replacing the gearbox so it doesn't matter if you smash it to pieces to get to the end of the shaft with some grips, like I had to. Other than that, top video. Very helpful 👍
If the chuck won’t break loose then you can disassemble the gears on the old gearbox after it’s out of the handle and I believe it was a 9/32 socket that fit on the input shaft. Long handle ratchet on the input and the Allen wrench in the chuck seemed to work pretty well to break them apart
Excellent video
Short, detailed and to the point
thanks a lot ... I was hard time with the retaining screw .. :)
Excellent video, thanks for posting.
If the speed-selector switch is in the middle between "high" and "low", the motor won't couple to the chuck and it will feel like the gear assembly is shot. Check this before ordering parts!
Do you know anyone in Southern CA who do tune ups or repairs on Makita drills? I have 3 that need to be tuned up some gears seem to be stripped on one when doing heavy drilling. thank you
Excellent, very helpful
Hi I’ve got a Mikita dhp482 please can you advise me I’ve changed the bushes also a new motor but my drill still whan’t work at all battery is fully charged the light on drill works but not the drill it self SOS please can you give any advice thanks ...
Thanks. Works for me
My chuck is fine but the drill is frozen light comes on but I cannot get the drill to rotate in any setting forward reverse, drill, hammer, or screw. 1 or 2 gearing? Any thoughts?
Dead switch or electronic, same problem but with brushless motor version
I found broken Makita still work only the shelf broken n holding with tape .
How to charge 14.4 drill battery
Question: Can I convert my Makita regular drill into hammer drill since hammer drill function is part of the gear assembly?
I would think not. The gear assembly is larger on the hammer drill and wouldn't fit the housing. Also, the hammer drill takes a lot more power to run, so the armature is larger.
My chuck would not undo. I had to cut the gearbox to pieces to get to the shaft before it would undo. Job’s a Good’n.
That was a gearbox swap, now try repairing the gearbox and post it!
Don't waste your time would be my advice. I bought a gearbox, but couldn't seperate the chuck. Not amount of impact would loosen it on a DHP453. In the end , I bought a chuck as well,. It the cost was like 20% less than buying a body only replacement.
Same problem... It is a real pain
So, are you suggesting trying to remove the chuck before purchasing parts?
@@stephenrobb9309 👏🏼