Repairing a selection of broken demolition hammer of all different brands.



Power tool reparation.
Repairing a selection of broken hammers from different manufactures, New old expensive and cheap.

0:10 Metabo MHEV 5 BL Hammer with a broken con rod bearing and wont lock chisel.
25:50 Bosch GBH 4-32 DFR hammer drill that wont switch on, how to replace field.
51:20 Ebay Demolition hammer JH 65 that wont hammer Not worth fixing
59:52 Old Hilti TP800 Hammer that wont hammer and is grinding gears, No parts available
1:05:58 Bosch GSH 5 CE hammer that’s going up and down in speed, hunting
1:12:14 Fake Makita Hammer drill that is struggling to run. No parts available
1:18:51 Bosch GSH 5 E Hammer keeps stopping, how to replace lead and brushes.
1:24:07 Hikoki H 41 MB2 Hammer sparking and flashing from the motor, how to replace brushes.
1:29:05 FF Group DH 5 MX PRO Hammer with a loose front tool holder, front keeps falling of, how to dismantle clean and reinstall

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50 thoughts on “Repairing a selection of broken demolition hammer of all different brands.”

  1. Had the "pleasure" of being lended one of those cheap china special demohammers.
    Mighty strong hammer when they hammer right but they feel horrible very cheap and loose all around and strong vibrations back into you hands.
    Also most of these have an oil lubed gearbox so they all leak.
    Better off just getting a GSH11E or a Hilti at the tool hire for the day.

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  2. As someone who is handy, hammers are some of the most impressive repairs because of the number of parts you have to assemble. This would be very tricky for me to repair without referencing a party diagram frequently.

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  3. Hilti guy needs to find a shops/manufacturers to make the replacement parts not a shop that repair shop that fits parts

    Can’t expect a repair shop to also produce one off parts, not unless your willing to spend a boat load for a couple of gears

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  4. Those might be fake brushes in the Hikoki (generic/aftermarket/compatible) and your customer may not have known about this. My brother-in-law runs a tool repair shop and encountered such problems recently, fake parts (usually small internal components or consumables) sold as original with counterfeit labels/packaging by some third party suppliers, so you should be mindful about this too.

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  5. 58:40 those demo hammers are okay for what they are, they cost like 180eur they sure cant compete with a hilti or bosch. But if you buy one to just dig a trench or break your floor just a single job already pays for itself.

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  6. that counterfeit makita with the grease problem… I've had a similar problem with a bosch table saw. brand new, but the grease was all lumped to one side. ended up busting my armature gear the very first time I ran it. lucky to have caught it before it busted anything else.

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