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Bosch 11236VS (0611236739) Rotary Hammer bosch logo

 Bosch 11236VS (0611236739) Rotary Hammer Parts

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 Fig # Img Part Name Availability Price
1Motor Housing
Part #: 1615108059
In stock
1 available
 $17.73
Add To Cart
2Field
Part #: 1614220120
In stock
4 available
 $37.34
Add To Cart
3Armature
Part #: 1614010211
In stock
4 available
 $58.14
Add To Cart
4On-Off Switch
Part #: 2607200578
In stock
6 available
 $26.68
Add To Cart
5Power Cord 14 gauge 2 Wire 7' Long
Part #: 1604460092
In stock
20 available
 $16.42
Add To Cart
6Strain Relief
Part #: 2600703019
In stock
5 available
 $2.99
Add To Cart
7Fastening Clamp
Part #: 1601302018
In stock
3 available
 $3.99
Add To Cart
9Manufacturer's Nameplate
Part #: 2610994195
Ships in 7 - 13 business days
 $2.85
Add To Cart
10Reference Plate
Part #: 2610994196
Ships in 7 - 13 business days
 $2.85
Add To Cart
13Deep-Groove Ball Bearing
Part #: 1610905025
In stock
12 available
 $7.27
Add To Cart
14Deep-Groove Ball Bearing
Part #: 1900900289
In stock
3 available
 $9.63
Add To Cart
15Fan
Part #: 1606610132
In stock
2 available
 $1.50
Add To Cart
18Air-Deflector Ring
Part #: 1610591011
In stock
2 available
 $1.50
Add To Cart
22Cylindrical Gear
Part #: 1616317602
In stock
4 available
 $10.89
Add To Cart
24Toothed Shaft
Part #: 1617000500
In stock
3 available
 $37.34
Add To Cart
Fig #ImgPart NameAvailabilityPrice
26Hammer Piston
Part #: 1618700063
In stock
2 available
 $15.16
Add To Cart
27Striker
Part #: 1618710060
In stock
2 available
 $15.16
Add To Cart
28Striker Pin
Part #: 1613124043
In stock
2 available
 $2.85
Add To Cart
29Piston Pin
Part #: 1613105012
In stock
4 available
 $2.85
Add To Cart
32Knob Assembly
Part #: 1612026037
In stock
23 available
 $8.38
Add To Cart
33Punched Disc
Part #: 1610190016
Ships in 7 - 13 business days
 $1.88
Add To Cart
34Felt Disc
Part #: 1610005000
Ships in 7 - 13 business days
 $1.24
Add To Cart
35Rubber Ring
Part #: 1610206021
In stock
8 available
 $3.99
Add To Cart
36Guide Bushing
Part #: 1610390016
In stock
2 available
 $9.63
Add To Cart
37Damping Bushing
Part #: 1610390032
In stock
2 available
 $4.13
Add To Cart
38Supporting Disc
Part #: 1610102026
In stock
2 available
 $1.88
Add To Cart
41Shim Ring
Part #: 1610101011
In stock
8 available
 $1.24
Add To Cart
42Friction Bearing
Part #: 1610202015
Ships in 7 - 13 business days
 $2.22
Add To Cart
43Tab Washer
Part #: 1611098005
In stock
2 available
 $2.22
Add To Cart
44Switching Element
Part #: 1615820092
In stock
5 available
 $3.99
Add To Cart
Fig #ImgPart NameAvailabilityPrice
45Switch Spring
Part #: 1614651014
In stock
1 available
 $3.99
Add To Cart
46Driver Pin
Part #: 1614690002
In stock
4 available
 $1.24
Add To Cart
48Holding Plate
Part #: 1611016003
In stock
2 available
 $1.50
Add To Cart
49Switch Button
Part #: 1612026035
In stock
4 available
 $3.99
Add To Cart
50/9Protective Cap
Part #: 1610508026
In stock
4 available
 $2.85
Add To Cart
52Cap
Part #: 1615500298
In stock
2 available
 $6.33
Add To Cart
54Crown Gear
Part #: 1616333029
Ships in 7 - 13 business days
 $12.31
Add To Cart
57Stop Bushing
Part #: 1610390025
In stock
2 available
 $8.38
Add To Cart
58Guide Ring
Part #: 1610390026
In stock
1 available
 $12.31
Add To Cart
59Needle Bushing
Part #: 1610910080
Ships in 7 - 13 business days
 $2.85
Add To Cart
60Needle-Roller Bearing
Part #: 1610910073
In stock
2 available
 $9.63
Add To Cart
61Needle Bushing
Part #: 2600910006
In stock
2 available
 $2.85
Add To Cart
62Friction Bearing
Part #: 1610200020
In stock
2 available
 $1.50
Add To Cart
63Needle Bushing
Part #: 2600914010
In stock
2 available
 $2.22
Add To Cart
64Needle-Roller Assembly
Part #: 1610913010
In stock
2 available
 $3.25
Add To Cart
Fig #ImgPart NameAvailabilityPrice
65Friction Bearing
Part #: 1610591016
In stock
2 available
 $1.88
Add To Cart
67Deep-Groove Ball Bearing
Part #: 1610905016
In stock
2 available
 $8.38
Add To Cart
68
Retainer
Part #: 1610119009
Ships in 7 - 13 business days
 $1.24
Add To Cart
69Rotary Shaft Lip Seal
Part #: 1610283041
In stock
2 available
 $5.47
Add To Cart
70Shaft Sealing Ring
Part #: 1610283023
In stock
3 available
 $4.13
Add To Cart
71Scraper
Part #: 1610290029
In stock
2 available
 $1.88
Add To Cart
73O-Ring
Part #: 1610210121
In stock
5 available
 $2.99
Add To Cart
74O-Ring
Part #: 1610210104
In stock
5 available
 $2.99
Add To Cart
75O-Ring
Part #: 1610210159
In stock
4 available
 $2.22
Add To Cart
76O-Ring
Part #: 1610210046
In stock
8 available
 $3.99
Add To Cart
77O-Ring
Part #: 1610210106
Ships in 7 - 13 business days
 $3.99
Add To Cart
78/1Shim
Part #: 1610134005
In stock
2 available
 $1.24
Add To Cart
78/2Shim
Part #: 1610134006
In stock
1 available
 $1.24
Add To Cart
79O-Ring
Part #: 2600210003
In stock
2 available
 $1.24
Add To Cart
80
Compression Spring
Part #: 1614634006
Ships in 7 - 13 business days
 $5.47
Add To Cart
Fig #ImgPart NameAvailabilityPrice
81Compression Spring
Part #: 1614611009
In stock
1 available
 $1.24
Add To Cart
83Compression Spring
Part #: 1614611006
In stock
4 available
 $2.85
Add To Cart
84
Supporting Disc
Part #: 1610101627
Ships in 7 - 13 business days
 $1.24
Add To Cart
85Retainer
Part #: 1614601011
In stock
2 available
 $1.24
Add To Cart
86Retainer
Part #: 1614601024
In stock
2 available
 $1.24
Add To Cart
87
Screw Bushing
Part #: 1610390027
Ships in 7 - 13 business days
 $1.24
Add To Cart
88Roller
Part #: 1613200007
In stock
2 available
 $1.24
Add To Cart
89Cheese Head Screw
Part #: 2910141168
Ships in 7 - 13 business days
 $3.25
Add To Cart
90Cheese Head Screw
Part #: 2910141168
Ships in 7 - 13 business days
 $3.25
Add To Cart
91Sheet Metal Screw
Part #: 2910211036
In stock
2 available
 $0.99
Add To Cart
91/1Sheet Metal Screw
Part #: 2910211038
Ships in 7 - 13 business days
 $1.24
Add To Cart
92Sheet Metal Screw
Part #: 2912401019
In stock
5 available
 $1.50
Add To Cart
93Hex-Socket-Head Cap Screw
Part #: 2910151162
Ships in 7 - 13 business days
 $1.24
Add To Cart
94Sheet Metal Screw
Part #: 2603435015
Ships in 7 - 13 business days
 $1.24
Add To Cart
96Sheet Metal Screw
Part #: 2912401018
In stock
2 available
 $0.99
Add To Cart
Fig #ImgPart NameAvailabilityPrice
97Handle Cover
Part #: 1615133031
Ships in 7 - 13 business days
 $13.68
Add To Cart
98Cover
Part #: 1615133030
In stock
3 available
 $9.63
Add To Cart
99Sheet Metal Screw
Part #: 2610914920
In stock
6 available
 $0.99
Add To Cart
100Oval-Head Screw
Part #: 2914211311
In stock
5 available
 $1.24
Add To Cart
125Connecting Cable
Part #: 1614448035
In stock
2 available
 $1.50
Add To Cart
126Connecting Cable
Part #: 1614448036
In stock
2 available
 $1.50
Add To Cart
325/54Crown Gear
Part #: 1616333029
Ships in 7 - 13 business days
 $12.31
Add To Cart
325/79O-Ring
Part #: 2600210003
In stock
2 available
 $1.24
Add To Cart
652Depth-Gauge
Part #: 1613001003
In stock
1 available
 $12.31
Add To Cart
750Quick-Change Bit Chuck
Part #: 1618598175
In stock
16 available
 $77.52
Add To Cart
803Armature
Part #: 1614010211
In stock
4 available
 $58.14
Add To Cart
808Nameplate
Part #: 1601106032
In stock
6 available
 $2.99
Add To Cart
816Brush Holder
Part #: 1617000359
In stock
4 available
 $24.34
Add To Cart
816/04Carbon-Brush Set
Part #: 1617014128
In stock
14 available
 $16.42
Add To Cart
816/05Spiral Spring
Part #: 1614652002
In stock
5 available
 $1.24
Add To Cart
Fig #ImgPart NameAvailabilityPrice
819Impact Mechanism Housing
Part #: 1617000345
In stock
2 available
 $46.74
Add To Cart
820Gear Housing
Part #: 1617000315
In stock
2 available
 $54.15
Add To Cart
821Ratchet Sleeve
Part #: 1617000979
In stock
2 available
 $86.07
Add To Cart
821/01Ratchet Sleeve
Part #: 1617000979
In stock
2 available
 $86.07
Add To Cart
823Gear Sleeve
Part #: 1616328044
In stock
2 available
 $26.68
Add To Cart
825Bearing Flange
Part #: 1615805064
In stock
3 available
 $33.63
Add To Cart
826Toothed Shaft
Part #: 1617000516
Ships in 7 - 13 business days
 $71.54
Add To Cart
830Drive End Shield
Part #: 1615819022
In stock
4 available
 $65.27
Add To Cart
853Pinion
Part #: 1617000196
In stock
4 available
 $42.18
Add To Cart
855Jack Shaft
Part #: 1617000982
In stock
2 available
 $21.66
Add To Cart
878
Plain Washer
Part #: 1610134008
Ships in 7 - 13 business days
 $1.88
Add To Cart
899Service Pack
Part #: 1617000262
In stock
2 available
 $29.24
Add To Cart

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Drill Parts  Rotary Hammer Parts

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Repair Stories
Symptom:
Worn Part
Parts Used:
Part Number:
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Entry Date:2013-10-18 16:16:43
15 of 22 customers found these instructions helpful
Bit holder on the hammer not holding bits
Simple to replace chuck, just twist to your left,pull out and remove. Replace in reverse.
Did these repair instructions help you?
Discussion
Discussion for the Bosch 11236VS (0611236739) Rotary Hammer

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1224617
Question: Service Pack 1617000262

l901

Does above include parts 1610905025 and 1610206021? If not, can you tell me exactly what parts it includes. Thanks.
WJA
Reply: Service Pack 1617000262

WJA

Hello 1224617,

The part numbers 1610905025 Ball Bearing and 1610206021 Rubber Ring, are not included in the 1617000262 Service Pack. As you can see by the image of the Service Pack it includes the major o-rings,seals, etc, to rebuild the unit. If you look at the parts diagram the parts that are included in the kit are in solid black.

-WJA
Rickster
Question: 11236vs Chuck

Rickster

Our chuck fell off and it doesn't seem to want to go back on unless there's some trick I can't figure out. The ball bearings are loose in the inside so I suspect there is a spring behind them and it is shot and I need a new one. Any help would be appreciated.
buffalopres
Question: Repair

buffalopres

Quick change chuck by accident pulled off; how place it back?
Tinkerdave
Reply: Repair

Tinkerdave

Hi buffalopres,
If I remember right the chuck collar either pulls up or you twist it.this allows a detent in the chuck to move allowing the balls to slip over the collar. Hope this helps.good luck.
Tinker
sfarney141
Question: Brush Holder Replacement

sfarney141

Bosch hammer drill
#11236vs
what do I need to know about brush holder replacement? How do you connect the male leed on the bottom of brush holder to the female leeds coming from the motor?

Mike
Tinkerdave
Reply: Brush Holder Replacement

Tinkerdave

Hi sfarney141,
Remove the two screws on the brush holder and gently pry the holder up.The holder has two male connectors that sit in two female connectors which are part of the field.Hope this helps.Good luck.
Tinker
958988
Question: Bosh Rotary Hammer

958988

I have a sds plus model # 11236vs the hammer works fine it seems but the drill will only work in slow motion when you grab the head with your hand the drill stops instantly seems like some type of clutch problem if i had to guess have not opened the tool yet didn't know where to start anyone have any suggestions??
Tinkerdave
Reply: Bosh Rotary Hammer

Tinkerdave

Hi tm1231,
Sounds like the selector yoke is not in gauging .This is the knob on the side .It moves the selector yoke back and forth.Hope that helps.Good luck.
Tinker
jakejakezack
Question: Removing Knob Assy

jakejakezack

Is there any tricks to getting a broken knob assembly out?
ifix2ls
Question: Bosch 11236VS Wobbeling Bit

ifix2ls

Question: Wobbeling Bit

ifix2ls
Hey folks The part of the drill that the bit locks into has waddled out on my drill. It's also the part that the quik-relese fits over.
Would that be the part #1617000979
that I need to fix this problem?
Thanx
mtr
ifix2ls
Question: Wobbeling Bit

ifix2ls

Hey folks The part of the drill that the bit locks into has waddled out on my drill. It's also the part that the quik-relese fits over.
Would that be the part #1617000979
that I need to fix this problem?
Thanx
mtr
micah_landry
Question: Ratchet Sleeve

micah_landry

Is this the part that the quick-change bit chuck slides over and locks on too. It's hard to tell without a photo. My quick-change bit chuck seems to be in good working order, but the sleeve that it slides over will no longer hold it into place. Especially if I hit a piece of re-bar when drilling, the chuck comes right off bit still attached.
When in hammer mode, the drill seems to hammer/chip until the unit gets hot. It then stops hammering. Everything sounds like it's hammering but it stops performing. I've put the unit down for 10 min and it works again but it's not always the case. Seems to be an intermittent problem. The brushes look slightly worn with no cracks or wire showing. I've taken the unit apart with grease everywhere on the inside. Looked at the o-ring fix on a previous post but it seems to be in good condition. Not sure what to look for at this point with all the grease and would hate to put it back together just to start over and break it down again. Tool has had some heavy use on and off over the last several years. Any help appreciated.
james
Question: Selector Nob

james

How do you remove the selector knob on a 11236vs? It hammers in drill and drills in hammer. I can't seam to remove the knob. Help me.
Kynar
Reply: Selector Nob

Kynar

Rotate the selector knob to the hammer only position. Once you are there depress the button and turn it clockwise to the 4'oclock postion from there it should come right off. If you look at the breakdown of the bosch 11224vsr it shows a great picture of the position it needs to be for removal. Hope this helps
Valerio
Question: Replacing The Bearing Flange

Valerio

Hello does someone know how to change the bearing flange for the 11236VS. When i am trying to insert the new bearing flange it goes in but it sticks out nearly 2 millimeters en when i attach the screws it does not going in all the way. When i turn the armature fan to see if the bearing flange is inserted correctly i see that it does not turn so the bearing flange is not going in link removed someone help me please
If you want you can mail me at v_benschop at hotmail dot com
Have a bosch 11236VS hammer drill. Took the unit apart and did a rebuild with the kit. Only problem is that the selector knob is now stuck in the drill only mode. I placed it back on without any problems and clicked the knob from the hammer drill to hammer then to drill mode. It now wont go back to the other modes and I can't remove the selector knob without breaking it. Any ideas as to what to do. I've been working on this thing for an hour and give up

Thanks
Dale
Reply: Bosch Selector Knob Broken

Dale

Try this link to a video. link removed - Taking Apart the Bosch 11224VSR & 11228VSR Hammer Drills the tool is very similar. to the roto hammer you have.
Having problems with the hammer part of this drill. The drill runs perfect but the hammer part has a mind of its own. Everything sounds like its working in hammer mode but no hammer. It worked great when new but when the unit gets hot it usually stops hammering with just the noise of what should be hammer mode. I'll put it down for 30 minutes with a 50-50 chance that it starts hammering again. Sometimes, the unit will hammer through a job, sometimes not. I took the unit apart with the brushes in good condition. The common o ring wear problem from a previous poster was checked and seems to also be in good condition. Not sure what else to look at except gobs of grease all over the internals.... Any help appreciated

Dave
qdea
Reply: Bosch 11236VS Hammer Drill Inter...

qdea

There are two places of possible defects that this condition would be occuring from.
On the xploded view of the tool model, item # 27 which is call the striker,on the striker theres an o-ring if that is worn, secondly you'll need to check item # 830 called the drive end shield which is actually a bearing that might be bad too and could case that condition.
halo
Reply: Bosch 11236VS Hammer Drill Inter...

halo

How can you tell if the drive end shield is bad? Would hate to just start replacing until I hit the right part. The o ring looks ok from what I can see. Thanks for the info
qdea
Reply: Bosch 11236VS Hammer Drill Inter...

qdea

usally the outer ring separates from the inner bearing body,or balls from the bearing may be missing.
fabtron
Question: BOSCH Hammer Drill

fabtron

My drill is running very slow aned i think is making too much effort and after a few seconds it smells like its burning i changed the carbons and wiped some dirt of the field and nothing happened.

Any ideas as of what it may be the problem??
Kynar
Reply: BOSCH Hammer Drill

Kynar

More than likely you have a burnt armature or field.
KTR
Reply: BOSCH Hammer Drill

KTR

there is a set of bearings on each end of the armature, one of them is bad
I bought a new Bosch 11236VS hammer drill on a clearance rack at Home Depot. It does not have a chuck but the price was $60. so I figure I can afford a new chuck at that price. My question is since I don't have an old chuck to take off, is there any trick I need to know to install the chuck? Is this a snap ring and ball? And no I don't feel guilty about the price I paid.
Michael
Reply: Bosch 11236VS Chuck Replacement

Michael

"And no I don't feel guilty about the price I paid. "You probably should! That's a really great deal - Nice work! :)

Installing the chuck is actually pretty easy on this one. Just slide it on, press it in, and turn it counter-clockwise to lock it into place. No tools or grease needed.

We've got some of those chucks in stock right now. You can find them here:

1618598175 Quick-Change Bit Chuck - $67.93

Those are excellent hammers. Congratulations on your find - you should be able to get a lot done with that thing :)
remsr
Reply: Bosch 11236VS Chuck Replacement

remsr

thanks for the installation tip, the chuck is on order. Thanks again. BOB
I just acquired a second one of these and it seems to have slightly more "gear" noise than the first one. The motor brushes are worn much less than 50%. So, if they haven't been replaced, this drill should have a good bit of life left in it. I noticed an excessive amount of grease at the rear of the chuck and in the area of the drill/hammer selector knob. After cleaning everything externally, I removed the rear handle/cover and the bearing flange so that I could check the grease inside the drill. It looked sort of like the greasy residue that I've sometimes seen in drains - Dark and almost soupy. Is this normal? If not, what does the color/consistency indicate?

What is the proper grease to use in these drills? Should it be packed full or not?

Other than improper lubrication, what is the most likely cause of the additional noise I am hearing? (I understand that there are dozens of parts but what are the most common issues?)

I have tested the drill and it seems to function normally. I did not run it for more than about five minutes so I don't know if the grease on the exterior came from sloppy lubing of the bits or if it is leaking through the shaft or knob seals. Are such leaks a common problem?

Thanks,

Bill
cmoorejack
Reply: Questions About Bosch 11236VS

cmoorejack

Hey ACI,
Grease will typically break down over time and use..it then loses its ability to lubricate..the correct grease for this tool is part# 1-615-430-005..avail at ereplacementparts.com
it is a pretty purple grease that looks good enough to eat..! you will want to fill gear compartment about half full..[two tube should be enough]
The noise may be from some gear wear or just that you need some lube..!:)
you are OK if you have a little gear wear..no more then 10% or you may end up with some problems with heavy use..
Hope this helps...
Craig
full power
Question: Bosch Rotary Hammer 11236vs

full power

all drill and chissel tools,will not stay in bit housing,any help;will help thank you jim. [ full power ]
cmoorejack
Reply: Bosch Rotary Hammer 11236vs

cmoorejack

Hey full power,
The bit holder[or quick change collar] will need to be replaced..[no serviceable parts] part # 1-618-598-175 available thru this website ereplacementparts.com...
hope this helps...:)
Craig
full power
Reply: Bosch Rotary Hammer 11236vs

full power

thank you very much for your help, i am ordering now . This a great place to do business. jim:)
Someone gave me a Bosch 11236VS hammer drill that has lost its hammering ability. This unit has seen lots of hard pro use. Looking at the exploded diagrams, my guess is that its general means of function is that the "arm" on the "eccentric" pulls the piston rearward, compressing the main spring (pulling from the front of the spring thru linkage coming through the spring from the rear), and at a certain point in the rotation of the assembly, the piston is released, striking the rear of the striker pin, which is linked to the chuck holding the bit. The only other mechanism I can imagine is that the "eccentric arm" merely plunges the piston forward against the rear of the spring (and thru linkage to the chuck), but it seems to me that this would supply an insufficient force for the impact function. I have disassembled the unit (quite a greasy mess), and can see no broken or obviously worn parts. I could NOT see some of the forward parts which, if my memory serves me correctly -- it's been perhaps a year -- were hidden inside the impact mechanism housing, which seemed a more formidable task than I was ready to tackle without knowing more. Anyone know what part or parts are worn or broken and need replacement? (Yes, I managed to reassemble with no leftover parts, and previous drill-only functionality is restored.) Anyone know if my idea of how it functions is correct? Close?
cmoorejack
Reply: Bosch 11236VS Hammer Drill Doesn...

cmoorejack

Hey slantsix.
the most common hammering problem with this tool is a worn o-ring on the striker..the striker moves inside the hammer piston and creates a pneumatic percussion to give more power to the hit..with a worn out o-ring and sometimes hammer piston[or chamber] the punch almost doesn't exist..also a dried out hammer piston and you have a striker that doesn't move..
try replacing the o-ring and lightly grease..[you should should have some resistence when you reinsert the striker
hope this is helpful..
Craig
slantsix
Reply: Bosch 11236VS Hammer Drill Doesn...

slantsix

I never would have thought of that. Thanks very much. That really makes sense the more I think about it -- it still hammers, but with almost no effective impact. Is that a special O-ring I need to order from the supplier, or will a generic do? Am I close on how the thing functions? I.e., does the main spring's sudden release from compression provide the impact, or does it serve instead to push the striker back into the "strike-ready" position? (Or something else?)
cmoorejack
Reply: Bosch 11236VS Hammer Drill Doesn...

cmoorejack

The o-ring is kinda special..better to purchase the correct one..1-610-210-121 ..
The area between the piston and the striker is where the air pressure is built up allowing for the extra punch..[the piston doesn't actually hit the striker..the striker hits the impact bolt that actually makes contact with the bit..!]:)
Craig
slantsix
Reply: Bosch 11236VS Hammer Drill Doesn...

slantsix

OK, I've got the O-ring. I've disassembled the unit. There seems to be plenty of grease in the gearbox and on the striker, cylinder, and O-ring. The striker came out with considerable resistance (does that mean the problem is somewhere besides the O-ring?), and appears to be undamaged, other than perhaps a seemingly insignificant small nick near the outer perimeter. I've wiped the grease from these 3 parts where they contact one another. I'll replace the O-ring anyway, but I'm wondering if I should order more grease, or just collect grease from other parts in the gearbox, or use a readily-available generic grease. I happen to have a multi-purpose all-season lithium grease, "highly water resistant, high melting point, suitable for chassis, wheel bearings, water pumps, ball and roller bearings." It's even purple, like the Bosch stuff. Should I orfer the Bosch factory stuff anyway? (# 1615430005, as I found on another post of yours.)
cmoorejack
Reply: Bosch 11236VS Hammer Drill Doesn...

cmoorejack

Considerable resistance could also mean it was stuck..:)..It is best to use the Bosch grease..you can also put a little air tool oil on the o-ring ..keep the grease out of the striker chamber.[the striker needs to glide somewhat and not be pushing grease].. .new grease is always better than old grease...
Craig
slantsix
Reply: Bosch 11236VS Hammer Drill Doesn...

slantsix

OK, I got everything working. I was curious about whether the problem had been with the O-ring, or whether it was because of too much grease in and around the cylinders. So I decided to reassemble with the old O-ring. The striker seemed awufully sticky with just the air tool oil, so I added a thin layer of the gear grease -- much better. I wasn't sure how far to initially "load" the striker into the cylinder, so I just pushed it in to about the O-ring. I reassembled, and everything works fine -- with one exception. In the hammer-only position, the bit turns slowly (I can stop it by holding the chisel bit with my hand), instead of being stationary. I have tried the "vario-lock" feature, but I can't seem to get the chuck locked so it doesn't turn. Did I reassemble something wrong? I find the most difficult part of reassembly to be getting and keeping the selector switch inner linkage aligned as you reinsert the gear assembly into the housing, and then properly reinstalling the selector switch.

Also, the gear grease, part# 1-615-430-005, is not purple (did they change it because too many people were eating it?). It looks more like the grease used on the bit shanks. The vendor assured me it's the right stuff. By the way, how much grease should I pack into the thing?
cmoorejack
Reply: Bosch 11236VS Hammer Drill Doesn...

cmoorejack

Hey slantsix,
It sounds like you still may have an issue with the selector..it may be misaligned a little or tweaked..and it may correct itself over time..as far as the grease..there should be a thin film inside the chamber and the rest outside..[if you have too much grease or oil in the chamber the striker cannot move as freely] if ya get back in there you might as well put the new o-ring on..just because..:)
congrats so far on your repair..!
cmoorejack
Accessories
Accessories for the 11236VS

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303820
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