Hammering Logo

Related Topics:

Wentworth Graham Posted on Mar 20, 2017
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

I have a bosch jackhammer 11388, motor runs fine but the bit not cutting

1 Answer

Pieter Vleeshouwers

Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

  • Bosch Master 2,029 Answers
  • Posted on Apr 09, 2017
Pieter Vleeshouwers
Bosch Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Joined: Jun 07, 2008
Answers
2029
Questions
0
Helped
4113570
Points
7389

Position 856 1617000836 a broken hammer piston in the worst case but you have to order 1 617 000 A15 a maintence kit and special lubrication used 50 ml 1 615 437 512
INSPECT CAREFULLY THE 1 617 000 838 Hammer Pipe for rips if all parts are unmounted of the hammer pipe tap it with a metal object then it should not have any dull sound treat like a tuning fork for control for rips. thats important before repair consideration before.
The lubricant will be quite thick and that can also be the case only , (only have had its working hours on it) the revision of this hammers are easy to do it yourself clean solvent all metal parts that you re-use again to do the job you have a bench-vise and tools , for the striker pin in case there are no special tools neccesary like other hammers like a suggestion the Milwaukee 500S or other proffesional hammer because of the need of special seals and tools are neccesary , in between 1 and 2 hours are taken to service this Bosch hammers sometimes its neccesary to be aware of 1 ring to replace first of all because its easy to forget this ring on position 104 1610210095 o-ring that will very easy forgotten in practise with some grease replace it first of all spare parts.


Bosch Parts Service Online Illustrated Part List

2 Related Answers

Anonymous

  • 141 Answers
  • Posted on Sep 13, 2009

SOURCE: I have a Bosch brute jackhammer, I need the tool

You can use an adjustable face spanner wrench to remove that cap. I don't remember the pin size but you can measure the holes and get the appropriate size. You can remove the whole plate with the armature by undoing the 4 cap screws. Prior to removing the motor plate you have to remove the handle plate from the axle that goes through the body. Undo the nut that holds the assembly on and slide it off. You can now remove the Armature plate. After removing the cap screws pull the assembly out about 1-2 inches. You will see the wires that go to the field attached to the brush holders. Remove the screw that holds these wires to the brush holders. You can then safely remove the whole assembly. This also makes it easier to remove that cap plug with the spanner wrench, because you can now put the whole assembly in a vise. I always heat around the cap with a torch before doing anything. Then I tap on the plug with a hammer a couple of times and voila it turns alot easier. Corrosion almost always builds up on this cap because of the different metals. (Steel and Aluminum respectfully)

Your hammer may have a broken connecting rod. To inspect this make sure you ping the cylider and body with marks so you line them up the same way. Then remove the 4 cap bolts that hold the cylinder to the body. Remove the cylinder and inspect the hammer cylinder and rod. If the connecting rod is not broken you will have to inspect the gears and pinions to make sure they are ok.

Ad

Anonymous

  • 1015 Answers
  • Posted on Apr 18, 2011

SOURCE: Bosch Hammer drill. When drilling, the

I would say that the motor shaft is probably bent and will need replaced.there are bosch service centers all over unfortunatly the price of parts especieally if it is a older unit can be almost what the unit costs.Sorry I'm not more help as I have several bosch tools in my shop and they are top quality tools. However I also have an old 65# electric breaker out there that is gathering dust because it has a cracked armature and the parts alone to fix it are in excess of $800.00. Best of luck to you and thanks.

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

The strike is not working anymore on my Jackhammer the motor runs fine what's causing this

Likely it needs new o-rings - there is no compression between the piston and hammer
0helpful
1answer

Why my Bosch brute jackhammer only hums when I press trigger? Can someone help me please?

seems as if the jackhammer motor is locked up and frozen might wanna be careful opening it up and freeing that motor up while its unplugged
0helpful
1answer

Bosch jackhammer

To long without service , or problem with a broken part ? or an problem with a electric field (slide contact somewhere ) or one of the carbon brushes is autostop activated ?
Or simple a cable break , a switch with a problem ,
Mar 27, 2014 • Hammering
0helpful
1answer

Bosch jackhammer

broken power cable or autostop inside the carbon brush they are short its time for a revision !!
Nov 28, 2013 • Hammering
1helpful
2answers

I have a bosch hammer dirill that won't chip nor drill but motor run fine

Hi, have you tried the various positions on the front part of the gearbox behind the 'chuck'?
If so, then Im afraid it must go in for repair. These are not an easy fix and personally I would recommend you ask for a 'quotation' as it could be just something simple to do with the 'Gearbox' selector, but it could also be something a lot more serious within the Gearbox.
Good Luck & Best Wishes, John..
4helpful
1answer

How to fix jackhammer it doesnt hammer.

Bosch hammer drill 11304 uses sds bits and is generally a good hammer. Usually only needs yearly (depending on use) lube with Bosch grease to keep it working well. No hammering usually means lack of lubrication or broken connecting rod on the hammer piston. Not easy to repair. Tackle only if you have lots of experience with Bosch or other complicated hammers. Parts are easy to find. Good luck.
Mar 02, 2012 • Hammering
0helpful
1answer

Bosch Hammer drill. When drilling, the bit hit a rebar and feels like it permanently warped the chuck. Is this possible, or did the motor shaft bend? the motor runs fine, but the bit does not run...

I would say that the motor shaft is probably bent and will need replaced.there are bosch service centers all over unfortunatly the price of parts especieally if it is a older unit can be almost what the unit costs.Sorry I'm not more help as I have several bosch tools in my shop and they are top quality tools. However I also have an old 65# electric breaker out there that is gathering dust because it has a cracked armature and the parts alone to fix it are in excess of $800.00. Best of luck to you and thanks.
Apr 18, 2011 • Garden
12helpful
1answer

Hammer runs but bit does not move much

how much oil do i put in my bosch jackhammer?
1helpful
1answer

I was cutting 2" dense foam insulation board,

The problem you have is a faulty field coil, the Bosch saws unfortunatly have a bit of an issue with this. The coil can be replaced separatly so you won't have to replace the whole motor. Bosch has a 1 yr warranty on thier table saw so this is a warranty replacment provided the saw was purchased within the year. If not the coil replacment is still cheaper than buying a whole new saw, but should really be done by a service center because of the level of difficulty of the repair.
Not finding what you are looking for?

2,254 views

Ask a Question

Usually answered in minutes!

Top Bosch Hammering Experts

john h

Level 3 Expert

29494 Answers

ADMIN Andrew
ADMIN Andrew

Level 3 Expert

66931 Answers

jabbar huusain
jabbar huusain

Level 1 Expert

6 Answers

Are you a Bosch Hammering Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...