20 Most Recent Makita 18V 1/2"CRDLS Drill Kit - Page 6 Questions & Answers

It is very common for the armature to overheat and melt down. Open it up and inspect the armature, it will be very obvious it is burnt. If it is the case, replace the brushes (#16) and the armature(#14) Makita BHP454 18V LXT Lithium Ion Cordless 1 2 Hammer Driver Drill Parts

No, unfortunately this is brushes only come as part of the motor assembly Makita 6226DWE 3 8 Cordless Driver Drill Parts

Try first to look inside the motor that has much higher priority because the carbon hammerbrushes can be worn (to short)

Are you sure the battery is good? If it is, then maybe the charger went to charger heaven.

https://www.google.co.uk/webhp?sourceid=chrome-instant&rlz=1C1CHBD_en-GBGB719GB719&ion=1&espv=2&ie=UTF-8#q=makita+BHP454+cordless+drill+overheated ..try this link

It could be that the batteries died.

The motor is defective replace it or the tool.

Serial numbers on any product are for that one and only item. That's why it's a "serial" number, each and every one has it's own individual number. The one before it and the one after it on the production line have a different number. The serial number is usually pointless unless you have a recall or something.

You will need to have someone take it a part and see where the problem lies. Start with the electrical plug, both the wall plug and inside the drill where the wire attaches to the switch. Often, the switch is the problem, but the wire itself can be bad, if the cord is worn. There is such a thing as the wire separating inside the cord. We will hope the unit is not "toast". God bless your efforts.

Makita ML902 - great flashlight. but I wanted to upgrade the lamp to LED, and found that the POLARITY was wrong . so i HAD to open the dern thang. the 'special tool' and 'keep in-house' conspiracy had me 'fuming' ... turns out if one were to mark the EXACT spot that the pivot occurs with a felt pen, by drilling a small (sized) hole on each side, (stop as soon as the bit is thru! the shiney material that you stop at are lamp straps) then pressing 2 stiff objects from both sides, the head pops off ! one more screw is uncovered, making it an even 4 screws holding it all together. When i opened the case up, one wire wasn't even soldered to the switch ! aargh. so - swapped polarity, re-soldered the connections, add a bit of fresh solder, re-assemble, voila! I love the 9 volt cases, upgrading everything to 12v and 16v lithium 18650 cells. these old Makita ensembles are great! saw, drill, angle drill, light...

Try pulling out the brushes and blow some air in were the brushes go it may have gotten some trash in between the brush and the armature . they may need to be replaced, here is a pleace that will give you a breakdown and sell you the parts. http://www.ereplacementparts.com/makita-hr3851-rotary-hammer-parts-c-97_380_491.html

Hi, could be you have to re-new your brushes to the motor .

is this the bearing that is gone ..its on the armature ifit is you have to take the casing apart

Gearshaft problem with the gear house a border of small ridges which must be locked in first gear, the gear shaft that runs now through if engine is running and switch from 2 to 1 gear , the locking teeth becomes broken in the housing 126410-4 is the ordering but no separate parts to get "Do not run the machine if you switch from 2 to 1 or 1 to 2 there are 2 special springs inside the switch slide inside to switch the machine having to rotate because inside the metal (aluminium gear shaft ) that Vertaling voor is scherp getand en maakt de plastic borging kapotVertaal in plaats daarvan naar is scherp getand en maalt de plastic borging kapot is sharp serrated and makes the plastic retainer broken.