Product Information
Description:
| This authentic OEM replacement part is used in some Bosch rotary hammers. An O-ring is a flexible "O" shaped piece used to create a pressure seal between rigid parts. Proper fit and good condition of O-rings are often essential for tool to function. Since there are multiple sizes of ring used on these machines, consult manual for correct placement. Sold individually. • Size: 22 mm x 4 mm |
Frequently Purchased With
Compatibility
the 15 compatible machines
This part is compatible with the following machines:
Bosch
11240 (0611240039) Rotary Hammer
11241EVS (0611241739) Rotary Hammer
11247 (0611247039) Rotary Hammer
11248EVS (0611248739) Rotary Hammer
11214VS (0611214734) 1-3/4" Rotary Hammer
11214VS (0611214739) 1-3/4" Rotary Hammer
11264EVS (3611B64010) 1-5/8 in. SDS-Max Rotary Hammer
11265EVS (3611B64110) 1-5/8 in. Spline Rotary Hammer
11241EVS (0611241739) Rotary Hammer
11247 (0611247039) Rotary Hammer
11248EVS (0611248739) Rotary Hammer
11214VS (0611214734) 1-3/4" Rotary Hammer
11214VS (0611214739) 1-3/4" Rotary Hammer
11264EVS (3611B64010) 1-5/8 in. SDS-Max Rotary Hammer
11265EVS (3611B64110) 1-5/8 in. Spline Rotary Hammer
Products Compatibility
This item works with the following types of products:
- • Drill
- • Hammer Drill
- • Rotary Hammer
Questions & Answers for O-ring
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Repair Instructions: Submitted by Customers Like You
1 of 1 people found this instruction helpful
Tool Type:
Rotary Hammer
Repair Difficulty:
Medium
Time Spent Repairing:
1-2 hours
Tools Used:
Screwdriver, Pliers, snap ring pliers, star drive socket attachment
Bosch 11247 Rotary Hammer would not hammer.
Removed top frame piece and extracted all old oil. Removed front circle lock rings holding the nose of the hammer drill on, then removed large snap ring and removed cylinder and all gears and seals. Please note: if you're going to attempt this make damn sure you TAKE PICTURES!!! of each step of the process because you will never remember the sequence of reassembly or the position (front/rear) of the gears, shifter, and shims. Do NOT rely on any of the parts breakdown pictures available on the internet, they are fascicle and incomplete. Once I replaced all seals and put in new oil (I used refrigerant oil instead of the Bosch brand) and reassembled the drill, it worked like brand new. Parts were exactly as ordered and a perfect fit, and shipping was quick. Thank you for the great service.
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Tool Type:
Rotary Hammer
Repair Difficulty:
Medium
Time Spent Repairing:
1-2 hours
Tools Used:
Screwdriver, Snap ring removal, star bit, vice
Hammer drill would not Hammer
Disassemble and clean debris from damaged O rings.
Remove old fluid and clean with alcohol and pressurized air.
Replace o rings on piston and slide driver.
Reassemble and Replace the oil retention ring and refill the gear box with recommended fluid and quantity supplied with the new access cover seal.
Twisting the plastic piston shaft with the piston cam in the 9 or 3 o'clock position allows you to remove and replace the piston without any disassembly of the piston.
The sliding driver in front of the piston was jammed because the o ring was deteriorated. Removal required pounding the tube at an angle against a solid piece of wood so as not to damage the tube.
Compressing the main spring to reinstall the master snap ring required a piece of round tube in the correct inside and outside diameter to fit over the bit receiver and allow the snap ring in compress enough to be re-seated in the casting. A bit tricky, but this impoverished tool made it happen.
Tool works great again
Remove old fluid and clean with alcohol and pressurized air.
Replace o rings on piston and slide driver.
Reassemble and Replace the oil retention ring and refill the gear box with recommended fluid and quantity supplied with the new access cover seal.
Twisting the plastic piston shaft with the piston cam in the 9 or 3 o'clock position allows you to remove and replace the piston without any disassembly of the piston.
The sliding driver in front of the piston was jammed because the o ring was deteriorated. Removal required pounding the tube at an angle against a solid piece of wood so as not to damage the tube.
Compressing the main spring to reinstall the master snap ring required a piece of round tube in the correct inside and outside diameter to fit over the bit receiver and allow the snap ring in compress enough to be re-seated in the casting. A bit tricky, but this impoverished tool made it happen.
Tool works great again
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Tool Type:
Hammer Drill
Parts Used:
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver
Unit would drill but not hammer
Removed the gear case cover
Gently pried the piston off the eccentric drive gear
Removed the piston from the cylinder
Removed the old o-ring and installed new
Reinstalled the piston
Topped off the gear case with 10w non-detergent oil
Installed the gear case cover
Gently pried the piston off the eccentric drive gear
Removed the piston from the cylinder
Removed the old o-ring and installed new
Reinstalled the piston
Topped off the gear case with 10w non-detergent oil
Installed the gear case cover
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Tool Type:
Rotary Hammer
Parts Used:
Repair Difficulty:
Easy
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver
No hammer
Replace seals on piston and weight in cylinder and any other applicable oil seals.
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Tool Type:
Hammer Drill
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Pliers, Socket set
stopped hammering
changed all O-rings in piston section
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Reviews
3 Reviews
Average Rating (out of 5):
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Exactly the correct part
Got the part that I ordered quickly and was able to get my Bosch hammer drill up and working in short order.
Guest -
January 7, 2023
Verified Purchase
Easy repair
The ordered parts came in good time drill hammer working perfectly.you guys are topgun.
Guest -
August 3, 2022
Verified Purchase
repair went without a problem...parts from manufacturer can be very slow.
Always top quality parts. Check back after order is placed because delivery times can be excessive.
Aaron -
November 5, 2022
Verified Purchase
Verified Purchase
eReplacementParts Team
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Product Information
