Hammering - Page 8 - Answered Questions & Fixed Issues

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measure powercable control carbon brushes that autostop in front of the carbonbrush was coming out of the brush if thats not control the electric field to brushholders and switch.

Service Support or google for hitachi hammer and under the choice of images you have chance .

power cable can be fractured, autostop in carbon brushes activated or an loose contact or broken contact in electric field.

Sometimes its the armature but most the electricmoduul itself

control first the connection of carbonbrushes to the electric field first and replace if needed the switch.

Most change where the ventilation takes place you can find the commutator of the armature.

No its not comparable it hearts and burns your seals because of missing heat by high dissipation and heat conductive properties and gaskets seals o-rings burns in short time because of the hot pneumatic working inside 40 is not sae 40 hihi sae 15 w40 in like suggestion a pressure washer its fine if there is a oil fill option there but if not , a special thin grease like oil must be used (some tools have a special zinc-free hydraulic always water-transparant oil if its fresh and black if its old used ) and if there is something leaked then there must be a service set be used to make it air-tight and not leaking if it has its working hours on it its better to service this tool . you are more jack yourself then your object and thats not healthy for yourself if its pneumatic function has lost and the battle peace don,t stop snaps not anymore in the -o-ring before the strike bolt in front of the chisel anymore if your chisel is not pushed on a wall or stone to break . it must complete have service

To service Hilti and Duss are 2 names of expensive professional brands with the highest quality metals and are most delicate brands in the world to service .with high marketing technical developments The technic in these brands are like no other brand , if it has its working hours done , be aware to do this on your own without this knowing that there may be a range of collaborating very special bearings present a coplete collaboration that must be replaced there are special poor-tolerance bearings it likes they where damaged if you feel this parts but its neccesary and very special calculated and the (Hilti )Turmopol oil is also very very expensive and sometimes there are ceramic rings used for the batte piece but in any case costs all a lot of money and its wasted in a very short time if not knowing how to service , if you want to take this yourself, these brands are not toys for Fixya and can harm more than it could happen if you are not aware of the cooperation of the various components in this machines and sometimes hidden tricks to it may be, for example, to release an armature that in a special seal is present which is not just available separately outside of the anchor. So be warned, it does all depend on the model and year out, service on your own without the right tools can make more damage than you may expect

A complete service kit is neccesary its pointless only to change oil, including hardened o-rings and gaskets and oil seals etc. have had their working hours. it all rests on a marketing technical calculation where no user is slicing. look for your model and a spare parts servicekit and if the neccesary tools are present you can do it on your own. the front second hammer (stroke bolt) must be air-tight the heavy battle piece must be pulled up by vacuum by the stroke cylinder and worn rings on it and everywhere and bad seals will not succeed

Is not enough this is a better suggestion for you because of wasting time for only oil (lubrication is not only very importand because of heating but if it was leaking theres more to do 323745 service kit comes complete with the most neccesary parts allways but priority in this is extra (in most cases) change the strokebolt(second hammer) allways by if that looks not smooth surface. https://devs.hitachi-koki.co.jp/ois/explodedDiagram.html?type=svg&modelName=H+65SB2&newwindow=true

by a service kit that are made for your model I do you a suggestion how you can do it yourself if you have a burner to heat up the bolts because of loctite sealant i think you know something of forces on that parts ? because of the tools that are neccesary to service it . Here is a suggestion of a brand that is maybe there or coming in your Country . thats why i do this suggestion by a dutch link . https://devs.hitachi-koki.co.jp/ois/explodedDiagram.html?type=svg&modelName=H+90SE&newwindow=true If you know the brand of your hammer ? sometimes bought secondhand and no modelname google it on 3 words powertools the brand service or choose pictures if you will see pictures where you can see your hammer but there are can be marketing technical differences by the models because a suggestion i made by Hitachi the H90 and H90SE are not compatible by service kit a part of spares can only be used. The time you spend is meaningless if you only think its leaking oil. because there is a thin lubrication inside most jackhammers and if that's leaking ,the working hours are on it, for time wasted re prematurely burned grommets make high-priority work bolt seal the front of the machine at the stroke chisel the first rings oil seals as well as the size of the stroke bolt must be tight and smooth, as if only a little air leaks burned den all your new o-rings (ie be hard in the short term) by overheating, use lubricants, not just fat because of the high temperature internal structure and the thermal conductivity of the parts together.

No, that will burn you seals and o-rings in a short time 15w40 or that kind of Oil will go on like syrup no then you go for a new service kit of seals and rings . But the important things that are quickly to see . If its a heavy old large hammer 10 kilo or more with a heavy battle piece then use a hammer fat(grease)only if there is no oil fill glass present. in place, but if it looks that oil has seated and the parts are made for high speed, use at least a zinc-free hydraulic oil Because of the heat dissipation, which is really high because of the internal air compression. Oil for a high-pressure cleaner which have a one-time oil filling without oil filler cap which oil can also be used. Turmopol oil brand Hilti always good but is very expensive.

Steve, RE POST make model # and your complete question, so all at Fixya can answer your question effectively. "I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

MAKITA HAMMER DRILL GREASE 30G (181490-7) or for the older HM models Hammer grease Makita P-08361

183614-1 its the revision set for the HM1304 BUT be AWARE the B serie can have marketing technical differences its not selled in my country

something broken , or only dry, leaking (o-rings hard or burned inside) or the armature drive is worn .

http://www.homedepot.com/p/Makita-Hammer-Bit-Grease-194683-7/205182387 For outside chisels Inside its depend on the model but most time its a Makita 181490-7 or for the older types Hammer grease Makita P-08361

193606-2 its the neccesary service kit for the tool with all the parts but be aware to control the locking sleeve and impact bolt replace it if its not air tight

Makita HM1500 Instruction Manual Page 8