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 Bosch 11305 (0611305034) Demolition Hammer Parts

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 Fig # Img Part Name Availability Price
1
Motor Housing
Part #: 1615106021
Ships in 6 - 12 business days
 $288.12
Add To Cart
4
Armature 115V Obsolete - Not Available
Part #: 1614011020
Discontinued
N/A
5
Felt Seal
Felt Seal
Part #: 1610108012
In stock
1 available
 $1.24
Add To Cart
6
Washer
Washer
Part #: 1610102013
In stock
2 available
 $1.24
Add To Cart
7
Bearing Flange
Bearing Flange Obsolete - Not Available
Part #: 1615805060
Discontinued
N/A
8
Fan
Fan Obsolete - Not Available
Part #: 1616610047
Discontinued
N/A
9
Eccentric Shaft Obsolete - Not Available
Part #: 1616110032
Discontinued
N/A
11
Eccentric Gear
Part #: 1616317015
Ships in 6 - 12 business days
 $71.82
Add To Cart
12
Gear
Part #: 1616328025
Ships in 6 - 12 business days
 $65.27
Add To Cart
13
Gasket
Gasket
Part #: 1611015012
In stock
3 available
 $1.88
Add To Cart
14
Gear Housing Obsolete - Not Available
Part #: 1615808039
Discontinued
N/A
15
Eccentric Cover
Eccentric Cover
Part #: 1615500168
In stock
1 available
 $2.22
Add To Cart
16
Motor Housing Cover
Motor Housing Cover
Part #: 1615500276
In stock
2 available
 $37.34
Add To Cart
17
Cover
Cover
Part #: 1615500261
In stock
2 available
 $7.27
Add To Cart
18
Brush Cover
Brush Cover
Part #: 1615500282
In stock
3 available
 $1.88
Add To Cart
Fig #ImgPart NameAvailabilityPrice
20
Spiral Spring
Spiral Spring
Part #: 1614652000
In stock
1 available
 $1.50
Add To Cart
21
Upper Handle Buffer
Upper Handle Buffer
Part #: 1612392001
In stock
5 available
 $3.25
Add To Cart
22
Lower Handle Buffer
Lower Handle Buffer
Part #: 1612392000
In stock
3 available
 $2.85
Add To Cart
23
Handle Assembly
Handle Assembly
Part #: 1615133025
In stock
1 available
 $21.66
Add To Cart
26
Striker
Striker
Part #: 1618710058
In stock
2 available
 $46.74
Add To Cart
27
Piston
Part #: 1618700047
Ships in 6 - 12 business days
 $24.34
Add To Cart
29
Plastic Sleeve
Plastic Sleeve
Part #: 1615190020
In stock
2 available
 $15.16
Add To Cart
30
Impact Bolt
Impact Bolt
Part #: 1613120015
In stock
2 available
 $37.34
Add To Cart
31
Bevel Washer
Bevel Washer Obsolete - Not Available
Part #: 1610114015
Discontinued
N/A
32
Tool Holder
Tool Holder
Part #: 1617000037
In stock
3 available
 $98.33
Add To Cart
37
Connecting Rod
Connecting Rod
Part #: 1612001029
In stock
1 available
 $8.38
Add To Cart
39
Seal Kit
Seal Kit
Part #: 1617000172
Ships in 6 - 12 business days
 $9.86
Add To Cart
49
Wrist Pin
Wrist Pin
Part #: 1610300058
Ships in 6 - 12 business days
 $2.22
Add To Cart
51
Washer Obsolete - Not Available
Part #: 1610102014
Discontinued
N/A
54
Washer
Washer
Part #: 1610113005
In stock
2 available
 $1.24
Add To Cart
Fig #ImgPart NameAvailabilityPrice
56
Pinion
Pinion
Part #: 1610300057
In stock
1 available
 $4.13
Add To Cart
58
Round-Head Grooved Pin
Round-Head Grooved Pin
Part #: 2917721034
Ships in 6 - 12 business days
 $0.99
Add To Cart
59
Cotter Pin
Cotter Pin
Part #: 1904681350
Ships in 6 - 12 business days
 $1.50
Add To Cart
61
Power Cord 14 gauge 2 Wire 7' Long
Power Cord 14 gauge 2 Wire 7' Long
Part #: 1604460092
In stock
9 available
 $16.42
Add To Cart
62
Cord Protector
Cord Protector
Part #: 3600703011
In stock
9 available
 $1.99
Add To Cart
63
Cord Clamp
Cord Clamp Obsolete - Not Available
Part #: 1611302007
Discontinued
N/A
65
Switch
Switch
Part #: 1617200017
In stock
6 available
 $42.18
Add To Cart
66
Terminal Block
Terminal Block
Part #: 1611091002
In stock
2 available
 $1.24
Add To Cart
68
Ball Bearing
Ball Bearing
Part #: 1610905001
In stock
2 available
 $13.68
Add To Cart
69
Ball Bearing
Ball Bearing
Part #: 1610900013
Ships in 6 - 12 business days
 $9.63
Add To Cart
70
Ball Bearing
Ball Bearing
Part #: 1610910049
In stock
2 available
 $17.73
Add To Cart
72
Needle Bearing
Needle Bearing
Part #: 1610910007
In stock
2 available
 $24.34
Add To Cart
73
Needle Bearing
Needle Bearing
Part #: 1610913001
In stock
3 available
 $4.13
Add To Cart
75
C-Clip
C-Clip
Part #: 2916660013
Ships in 6 - 12 business days
 $1.24
Add To Cart
77
Retaining Ring
Part #: 2916660018
Ships in 6 - 12 business days
 $1.88
Add To Cart
Fig #ImgPart NameAvailabilityPrice
O-Ring
O-Ring
Part #: 1610210072
Ships in 6 - 12 business days
 $7.27
Add To Cart
Seal Kit
Seal Kit
Part #: 1617000172
Ships in 6 - 12 business days
 $9.86
Add To Cart
82
Lock Washer
Lock Washer
Part #: 2916690007
In stock
16 available
 $0.99
Add To Cart
84
O-Ring
O-Ring
Part #: 1900210160
In stock
1 available
 $4.77
Add To Cart
86
O-Ring
O-Ring
Part #: 1900210130
In stock
2 available
 $3.99
Add To Cart
87
O-Ring
O-Ring
Part #: 1610210041
In stock
12 available
 $2.99
Add To Cart
88
O-Ring
O-Ring
Part #: 1610210042
In stock
2 available
 $3.99
Add To Cart
90
Nut
Nut
Part #: 2915061005
Ships in 6 - 12 business days
 $1.88
Add To Cart
95
Sheet Metal Screw
Sheet Metal Screw
Part #: 2910211011
Ships in 6 - 12 business days
 $0.99
Add To Cart
96
Cheese Head Screw
Cheese Head Screw
Part #: 2910021118
In stock
13 available
 $1.99
Add To Cart
98
Sheet Metal Screw
Sheet Metal Screw
Part #: 1613412001
In stock
2 available
 $1.24
Add To Cart
99
Screw
Part #: 2910021204
Ships in 6 - 12 business days
 $0.99
Add To Cart
100
Screw
Screw
Part #: 2910141199
In stock
8 available
 $2.99
Add To Cart
101
Hex-Socket-Head Cap Screw
Hex-Socket-Head Cap Screw
Part #: 2910141244
In stock
7 available
 $1.50
Add To Cart
102
Screw
Screw
Part #: 1613414009
In stock
20 available
 $1.99
Add To Cart
Fig #ImgPart NameAvailabilityPrice
104
Label (11305) Obsolete - Not Available
Part #: 1611110495
Discontinued
N/A
108
Cable
Part #: 1614437008
Ships in 6 - 12 business days
 $1.84
Add To Cart
801
Tool Holder
Tool Holder
Part #: 1617000037
In stock
3 available
 $98.33
Add To Cart
802
Locking Bolt Set
Locking Bolt Set
Part #: 1617000014
In stock
6 available
 $29.24
Add To Cart
805
Spacer Obsolete - Not Available
Part #: 1617031004
Discontinued
N/A
807
Field 115V
Field 115V Obsolete - Not Available
Part #: 1617031010
Discontinued
N/A
808
Carbon Brush Set
Carbon Brush Set
Part #: 1617014110
Ships in 6 - 12 business days
 $16.42
Add To Cart
812
Field Housing Obsolete - Not Available
Part #: 1617000059
Discontinued
N/A
828
Barrel
Barrel
Part #: 1617000918
In stock
2 available
 $370.50
Add To Cart
850
Impact Mechanism Kit Obsolete - Not Available
Part #: 1617000917
Discontinued
N/A
1/1
Screw
Screw
Part #: 2910141213
Ships in 6 - 12 business days
 $4.77
Add To Cart
2
Field 115V
Field 115V Obsolete - Not Available
Part #: 1617031010
Discontinued
N/A
2/2
End Splice
End Splice
Part #: 1900452012
In stock
12 available
 $2.99
Add To Cart
3
Field Housing Obsolete - Not Available
Part #: 1617000059
Discontinued
N/A
10
Spacer Obsolete - Not Available
Part #: 1617031004
Discontinued
N/A
28
Barrel
Barrel
Part #: 1617000918
In stock
2 available
 $370.50
Add To Cart
33
Locking Bolt Set
Locking Bolt Set
Part #: 1617000014
In stock
6 available
 $29.24
Add To Cart
38
Barrel
Barrel
Part #: 1617000918
In stock
2 available
 $370.50
Add To Cart
40
Handle
Handle
Part #: 1612025027
In stock
4 available
 $29.24
Add To Cart
41
Clamping Band 66mm
Clamping Band 66mm
Part #: 1611316005
Ships in 6 - 12 business days
 $8.38
Add To Cart
42
Bolt
Bolt
Part #: 2911061246
Ships in 6 - 12 business days
 $0.99
Add To Cart
43
Hexagon Nut
Hexagon Nut
Part #: 2915051107
Ships in 6 - 12 business days
 $1.24
Add To Cart
44
Knob
Knob
Part #: 1613349015
Ships in 6 - 12 business days
 $2.22
Add To Cart
57
Name Plate Obsolete - Not Available
Part #: 1611104001
Discontinued
N/A
61/2
End Splice
End Splice
Part #: 1900452003
In stock
21 available
 $0.99
Add To Cart
Fig #ImgPart NameAvailabilityPrice
65/1
Cheese Head Screw
Cheese Head Screw
Part #: 2603410001
In stock
4 available
 $1.24
Add To Cart
71
Spacer Obsolete - Not Available
Part #: 1617031004
Discontinued
N/A
O-Ring
O-Ring
Part #: 1610210072
Ships in 6 - 12 business days
 $7.27
Add To Cart
Seal Kit
Seal Kit
Part #: 1617000172
Ships in 6 - 12 business days
 $9.86
Add To Cart
85
O-Ring
O-Ring
Part #: 1900210152
In stock
1 available
 $3.99
Add To Cart
105
Manufacturer's Nameplate Obsolete - Not Available
Part #: 1611110468
Discontinued
N/A
108/2
Wire Sleeve Obsolete - Not Available
Part #: 1610452003
Discontinued
N/A
109
Spacer Obsolete - Not Available
Part #: 1617031004
Discontinued
N/A
110
Reference Plate
Reference Plate Obsolete - Not Available
Part #: 1601110449
Discontinued
N/A
113
Torx Oval-Head Screw
Torx Oval-Head Screw
Part #: 2912771120
In stock
11 available
 $0.99
Add To Cart
803
Service Pack
Service Pack
Part #: 1617000036
Ships in 6 - 12 business days
 $54.15
Add To Cart
A810
Handle
Handle
Part #: 1612025027
In stock
4 available
 $29.24
Add To Cart
881
Seal Kit
Seal Kit
Part #: 1617000172
Ships in 6 - 12 business days
 $9.86
Add To Cart
888
Nameplate
Nameplate
Part #: 1601106032
In stock
8 available
 $2.99
Add To Cart

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Discussion
Discussion for the Bosch 11305 (0611305034) Demolition Hammer

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  • Subject:
  •  
  • Comment:
  •  
I have a Bosch 11305 demolition hammer, and recently the locking bolt has become hard to turn. It does not appear to spring out enough to spin freely. I am thinking some debris got into it. Does anyone know how to remove and replace this part?
Part Number: 1617000014
Tinkerdave
Reply: Bosch Locking Bolt Set - How To...

Tinkerdave

Hi JR_Mew,
Most likely what has happened is that a worn bit has caused burs on the pin.This would explain it not turning oe retracting all the way link removed a light and look down the nose to see if this is the case.If it is you can some times remove the spring and retainer allowing the pin to be driven out of the nose and replaced or cleaned up enough to work again.Hope this helps.Good luck.
Tinker
JR_Mew
Reply: Bosch Locking Bolt Set - How To...

JR_Mew

Thanks, Tinker. I was thinking of just replacing it, but I can't figure out how the retainer and spring are removed. Any ideas?

JR
JR_Mew
Reply: Bosch Locking Bolt Set - How To...

JR_Mew

I guess no one knows. I've tried turning the inner retainer, but I can't get a good hold on it. Guess I'll wait until the new parts get here and see if that gives me a clue.
1255240
Reply: Bosch Locking Bolt Set - How To...

1255240

Hi,get a center-punch,& hit with a hammer in the center of the bolt (the side of the bolt that you see with 2 rings) & the bolt will jump out,don't worry; the spring & washers will stay in the center-punch;good luck.(the bolt is installed by pressure to the center ring or washer)
You can use a Bench Vise or a C-Clamp to mount the new Locking Bolt Set back.(Part # 1617000014)
villaroj
Question: 11305 Demo Gun

villaroj

Demo Gun doesn't fire into working order. I am getting electrical power, but not able too generate piston/striking action. HELP!
945201
Question: Owner

945201

I have a Bosch 11305 that seems to work fine then loses power and smells like something is burning, any clue ? Thanks
1097306
Reply: Owner

1097306

replace the carbon brushes.
smelling part I don`t know your armature might worn out if that's the case you got problem.
pissythecat
Question: Bosch 11305 Jackhammer Bit Over ...

pissythecat

Could a worn locking bolt cause the bit to get stuck so there is little to no hammer effect ?
pissythecat
Reply: Bosch 11305 Jackhammer Bit Over ...

pissythecat

More on the loss of hammer effect. When the bit gets stuck, if I use a hammer to beat the bit back into the jackhammer the hammer effect works for 20 seconds and then the bit gets stuck again.
WJA
Reply: Bosch 11305 Jackhammer Bit Over ...

WJA

Hello pissythecat,

The locking assembly, if worn could be the cause of the problem you are having, that would be the least expensive fix. You might want to inspect the bit to make sure it is not worn where it fits into tool holder. Also check the tool holder for wear.

WJA
my breaker is leaking black grease/oil and does not have continual breaking ability
DENNIS
Question: LEAKING FLUID

DENNIS

Oil is leaking from the lower body on my Bosch 11305, is this an O ring replacement fix?
Does the piston chamber get filled with oil? If so how much and what type?
villaroj
Reply: Everything Working Fine But No H...

villaroj

Hello,
Just wanted to revive this question! (2012 FEB.) My problems is exactly like PAT's, no striking/hammer action! Maybe Cmoorejack can possibly HELP?!
Tinkerdave
Reply: Everything Working Fine But No H...

Tinkerdave

Hi Pat and Villaroj,
What your going to have to do is remove the the front striker assembly and find the problem.It could be a number of things but replace your o-ring as sets or in other words don't replace what looks worn as the o-ring all have ware on them and replacing one or two will only half fix the problem. Once you have disassembled the striker assembly you will need to clean it and be able to see what of any hard parts are broken.Most of the time this will be obvious.Example would be a broken connecting rod or frozen striker.Once you find the problem ,replace the part and use the Service Pack Part Number: 1617000036 and reassemble.I wish I could give you a simpler way but the way I'm explaining is the right way to repair this tool so as not to have recurring problems with it.hope this helps.Good luck.
Tinker
Carl
Question: Piston Travels, But...

Carl

Hi. My Bosch 11305 demo hammer seems to be in basically good order, but the tool is not being impacted by the impact bolt. I have confirmed that the piston is shooting in and out just fine (motor, gears, piston all good) but it is as though the impact bolt striker are not long enough to reach the base of the tool. Ideas?
Doug C
Question: Fluid Leaking

Doug C

How much oil is needed from the service pack I received. Is the oil poured into the chamber noted
on Fig//abb.1 # 828
Paul D
Question: Leaking Fluid

Paul D

I went to use my Bosch jackhammer after lengthy storage and I see evidence of an oil leak on the lower body. Is this fluid I need to top off and/or replace O rings?
I am going to be replacing all of the piston rings and O-rings. But I need to know the correct position to place the Piston, Striker and Impact Bolt when I reassemble it. Also how much and what to greese.
Milillo02
Question: Bosch Demoltion Hammer 11305

Milillo02

Hey guys i have a bosch 11305 hammer. I wanted to know if any1 has a maintenance manual and or owners manual. Mainly i wanted to know if this tool needs lubricating/greasing everyonce in a while. it makes "whining" noises sometimes and i dont know if its lack of lubrication or not. Any1 can help? thanx
cmoorejack
Reply: Bosch Demoltion Hammer 11305

cmoorejack

Hey Milillo02,
They do need maintained once in a while..new grease and oil..even when the tool is not used for long period of time the grease's and oil will break down or link removed when the the brush's need to be replaced is the time to do it..[the brush's actually have a 'pop out' feature when they wear sown so the tool quits running] The most crucial components to service is the gear train and the piston and striker assy..along with changing out some o-rings and such:)
as far as the whining noise it may or may not be a problem and can be a characteristic of the tool..if it changes or gets worse,then it is a cause for concern..:(
Parts and breakdowns avail at eReplacementparts.com : Power Tool Parts and Tool Repair
hope this helps.?
cmoorejack
Milillo02
Reply: Bosch Demoltion Hammer 11305

Milillo02

Thanx alot. Yea that helps. But my problem would be what grease/oils to use? What to and how to greas them. I meane inside the casing does it have like zerk grease fittings or am i supposed to take apart the gear case and grease it like that? Which "O" rings should get replaced? I saw the parts breakdown of the hammer but there is more than one seal.. :)...a nymore help would be greatly appreciated.
cmoorejack
Reply: Bosch Demoltion Hammer 11305

cmoorejack

Hey M,
The best thing to get is the service pack..it comes with the o-rings, grease and brush's..
part # is 1-617-000-036..
no grease zerks and you will have to completely disassemble to service..the oil that is used is a light air tool oil on the o-rings[just a little bit] It doesn't come with the kit but it is a trick of the trade..if you don't have any oil just use the grease on the o-rings sparingly..be careful not to have too much in the piston/striker chamber or the percussion will be weak..
When you are ready to disassemble and service it is recommended that you go to a happy place,light some incense and play some soft rock music..I'm just saying..
Kidding..[sort of]..just be patience and have a breakdown available and you should do just fine..
cmoorejack
Milillo02
Reply: Bosch Demoltion Hammer 11305

Milillo02

thanx alt cmoore...that helps. I will buy that kit and service it. its an awsome tool and i know that as long as u keep them maintained they will give you MANY yrs of service.
Macguyver
Question: Bosch Demolition Hammer

Macguyver

What I need to know is how to get the eccentric gear # 11 (1616317015) off of eccentric shaft # 9 (1616110032 ) . In the break down pics it lists p/n 78 but there is no listing for that #. Looks like a circlip but mine does not have one, the on I have looks like it is pressed on and takes a special gear puller.
Dale
Reply: Bosch Demolition Hammer

Dale

Yes you will have to press the eccentirc shaft out. To split the case. I haven't repaired one for a while. But I don't remember a c clip ether. Hope this helps. Dale
Macguyver
Reply: Bosch Demolition Hammer

Macguyver

Thanks for input, used my puller for a power steering pully for a GM vehicle worked perfect.
keith@acr-corp.com
Question: Bosch Demolition Hammer

keith@acr-corp.com

Looking for bevel washer installation information. The washer came out during disassembly but I did not see if the cup side is in or out. Link to the service info or manual?
cmoorejack
Reply: Bosch Demolition Hammer

cmoorejack

Hey Kieth,
The bevel washer should face the front of the tool..so that the shoulder of the impact bolt fits in towards the bevel side..
hope this is helpful..
Craig
33 year masonry contractor
Review: Bosch - 11305
5 star
33 year masonry contractor
I bought this tool new in the 80s and only had to buy 3 kits of seals and grease. Can't tell you how many hours it has on it. I do masonry re hap as a contractor and I never had such a long durable tool ever. Still own it today and its on the job truck every day. I'm a Contractor and my letter hear is not for advertising means. Its just the plain truth,
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