20 Most Recent Makita Tools 18V 1/2" Lxt Lithium - Ion Hammer Driver - Drill Kit - BHP451 - Page 9 Questions & Answers

Here is the manual for your charger. Delay charge means the battery is still hot due to removing it from a used condition or left out in direct sun or heat. https://www.homedepot.com/catalog/pdfimages/0d/0d112214-cc51-4a32-b919-5ea3d317550b.pdf

Here is the owners manual, page 5 and 6 shows how to switch modes. If it won't switch the you have some internal damage. The second manual is a parts breakdown. Concentrate on parts 63-79, and 160 http://powertool.manualsonline.com/manuals/mfg/makita/hr4001c_hr4010c_hr4011c.html?p=5 https://www.ereplacementparts.com/makita-hr4010c-rotary-hammer-parts-c-97_380_3717.html

Here is the charger. it is priced pretty good. I have seen it at other places for over $100.00 https://www.factoryauthorizedoutlet.com/makita-7-2v-18v-pod-style-and-stick-style-3-hr-charger-model-dc1804

Here is a parts breakdown for your drill. Of course the armature has to be removed first. There are two screws holding the field. It should just push out at this point. If not, the housing may be melted to it. Good luck with that. https://www.ereplacementparts.com/makita-hr3000c-rotary-hammer-parts-c-97_380_507.html

Here is the parts breakdown of your drill. It is hard to say exactly what is the problem, but #10, #13, and #17 have to do with the hammer action. #15 is the hammer switch. It also could be bad. good luck on that. https://www.ereplacementparts.com/makita-hp1640-5834-hammer-drill-parts-c-97_16247_40066.html

It seems that Makita will not breakdown the gear assembly. Here is the complete gear assembly for your drill. https://www.ereplacementparts.com/gear-assembly-p-201383.html

Here is the manual for your drill. It does show you how to remove the angle attachment and installing a straight chuck. Maybe when you install the straight chuck it is not positioned correctly. http://powertool.manualsonline.com/manuals/mfg/makita/da4000lr_1.html

Here is the manual for your drill. Pictures show to install and remove the bit. http://powertool.manualsonline.com/manuals/mfg/makita/hr2450x.html

Here is a breakdown. https://www.ereplacementparts.com/makita-hr3000c-rotary-hammer-parts-c-97_380_507.html Here is the page of the manual that deals with bits http://powertool.manualsonline.com/manuals/mfg/makita/hr3000c_2.html?p=7

Here is a part breakdown. Chances are the switch assembly #14 or if you get to the brushes, they sometimes go bad. If you don't want to try to fix it yourself, these people know where to send it. It really is pretty easy to fix. https://www.ereplacementparts.com/makita-6071d-cordless-drill-parts-c-97_106_107_268.html

problem with clutch

you need to replace the brushers

I think that that is just to show that the battery is charging or it may show that the battery is full. You should only charge batteries when completely flat if it is a nicad battery. This is because the battery thinks that any power left is the new empty power level.

Yes they will everyone would charge for inspections unless it was part of an service contract then they may suggest parts may fail soon to get some cash out of it

You can get a 18V replacement Makita battery for your drill. The replacement one is cheaper. Replacement MAKITA BL1830 battery pack 100% compatible with the original BL1830 battery, high quality, wholesale price. http://www.drillbattery.com.au/buybattery.php/makita_BL1830_power+tool+battery.html

Inserting the bit should be the same on all versions of the Makita 3612 router. It does depend on the bit size. Press the shaft lock to keep the shaft from turning. I think the lock is close to the handle on one side of the router when you hold the router with the bit/collet up. For small shaft bits, insert the appropriate collet sleeve into the collet cone. Then insert the bit completely into the sleeve. For larger shaft bits, insert the bit completely into the cone. Use the wrench to tighten the collet nut securely. Unlock the shaft lock. Do not over-tighten or leave the bit loose in the collet cone/sleeve. Over-tightening can break the collet cone. Leaving it loose can result in the bit flying out of the collet cone. Either way, injuries can occur. To remove a bit, loosen the collet nut and then remove the bit (or bit and collet sleeve). The manual is available on the product page: https://www.makitatools.com/products/details/3612 . The direct link to the manual is https://cdn.makitatools.com/apps/cms/doc/prod/361/df12a409-2bd0-48c3-aa38-d635a480a76e_3612_IM.pdf . See page 8. I hope this helps. Cindy Wells

Dead battery?