*This part replaces obsolete part #: 986·104.
Product Information
Description:
This is a Genuine Manufacturer Sourced replacement part designed for Hitachi Hammer Drills. This O-Ring provides an Air-Tight Seal for the Piston. Over time this O-Ring will shrink, become brittle and crack allowing for air leaks. At that time it should be replaced. Replacing this item you would need Hex Key/Allen Wrench and Pliers to replace this item. |
Frequently Purchased With
Compatibility
the 40 compatible machines
This part is compatible with the following machines:
Metabo HPT (Hitachi)
DH38YE 1-1/2" Rotary Hammer, 2-Mode, Spline Shank
DH40FR 1-9/16" Spline Shank Rotary Hammer
DH40MRY 1-9/16" SDS Max UVP Rotary Hammer
DH50MB 2" SDS Max Shank Rotary Hammer
DH40FA Hammer Drill
DH40FA Hammer Drill
DH40MR 1-9/16" SDS Max Rotary Hammer
DH38YF SPLINE 1/2" Rotary Hammer
DH40FB SPLINE 1-9/16" Rotary Hammer
DH40MA SDS MAX 1-9/16" Rotary Hammer
DH40MB SDS MAX 1-9/16" Rotary Hammer
DH40RMY SDS MAX 1-9/16" Rotary Hammer
H45MA SDS MAX Demolition Hammer
H45SB Hammer
H45SB2 3/4" HEX 21/32" Round Demolition Hammer 8AMP
DH38MS Rotary Hammer
DH38YE2 Rotary Hammer
DH50MRY Rotary Hammer
H41MB Hammer Drill
H41MB Hammer Drill
DH40FR 1-9/16" Spline Shank Rotary Hammer
DH40MRY 1-9/16" SDS Max UVP Rotary Hammer
DH50MB 2" SDS Max Shank Rotary Hammer
DH40FA Hammer Drill
DH40FA Hammer Drill
DH40MR 1-9/16" SDS Max Rotary Hammer
DH38YF SPLINE 1/2" Rotary Hammer
DH40FB SPLINE 1-9/16" Rotary Hammer
DH40MA SDS MAX 1-9/16" Rotary Hammer
DH40MB SDS MAX 1-9/16" Rotary Hammer
DH40RMY SDS MAX 1-9/16" Rotary Hammer
H45MA SDS MAX Demolition Hammer
H45SB Hammer
H45SB2 3/4" HEX 21/32" Round Demolition Hammer 8AMP
DH38MS Rotary Hammer
DH38YE2 Rotary Hammer
DH50MRY Rotary Hammer
H41MB Hammer Drill
H41MB Hammer Drill
DH36DMAQ2M 36v Mv 1 9/16 Inch Sds Max Variable Speed, Roto Hammer With Rfc, Bare Tool
DH38YE2M 1 1+a71:b73pline Rotary Hammer, 8.4 Amp 2-Mode
DH40MCM 1-9/16 Inch Sds Max Rotary Hammer With Case
DH40MEYM 1-9/16 Inch Ac Brushless, Ahb, Ac/Dc, Sds Max Rotary Hammer With Uvp
DH52MEM 2 1/16 Inch Ac Brushless, Ahb, Ac/Dc, Sds Max Rotary Hammer
DH52MEYM 2 1/16 Inch Ac Brushless, Ahb, Ac/Dc, Sds Max Rotary Hammer With Uvp
H41MB2M 12lb, 8.4 Amp, Sds Chipping Hammer With Low Vibration Handles
H60MEYM 20 Lb. Ac Brushless Ac\\dc Ahb, Uvp, Sds Max Demolition Hammer
H41 Hammer Drill
H41SD Hammer Drill
DH28Y Hammer Drill
DH40MC Rotary Hammer
DH40MEY Rotary Hammer
DH40SA Hammer Drill
DH40YB Hammer Drill
DH52ME Rotary Hammer
DH52MEY Rotary Hammer
H41SA Hammer Drill
H41SC Hammer Drill
H60MEY Rotary Hammer
DH38YE2M 1 1+a71:b73pline Rotary Hammer, 8.4 Amp 2-Mode
DH40MCM 1-9/16 Inch Sds Max Rotary Hammer With Case
DH40MEYM 1-9/16 Inch Ac Brushless, Ahb, Ac/Dc, Sds Max Rotary Hammer With Uvp
DH52MEM 2 1/16 Inch Ac Brushless, Ahb, Ac/Dc, Sds Max Rotary Hammer
DH52MEYM 2 1/16 Inch Ac Brushless, Ahb, Ac/Dc, Sds Max Rotary Hammer With Uvp
H41MB2M 12lb, 8.4 Amp, Sds Chipping Hammer With Low Vibration Handles
H60MEYM 20 Lb. Ac Brushless Ac\\dc Ahb, Uvp, Sds Max Demolition Hammer
H41 Hammer Drill
H41SD Hammer Drill
DH28Y Hammer Drill
DH40MC Rotary Hammer
DH40MEY Rotary Hammer
DH40SA Hammer Drill
DH40YB Hammer Drill
DH52ME Rotary Hammer
DH52MEY Rotary Hammer
H41SA Hammer Drill
H41SC Hammer Drill
H60MEY Rotary Hammer
Products Compatibility
This item works with the following types of products:
- • Demolition Hammer
- • Drill
- • Hammer Drill
- • Rotary Hammer
Questions & Answers for O-ring
No questions have been asked yet
Repair Instructions: Submitted by Customers Like You
Tool Type:
Hammer Drill
Repair Difficulty:
Hard
Time Spent Repairing:
1-2 hours
Tools Used:
Screwdriver, Pliers, Socket set, Wrench Set, Nutdriver, Adjustable Wrench
The hammer drill would not hammer
After installing the new parts the hammer drill still did not hammer.
I called a technician who advised me that excess grease would stop the hammer function. I removed the excess grease and Walla! It hammers now!
I called a technician who advised me that excess grease would stop the hammer function. I removed the excess grease and Walla! It hammers now!
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Tool Type:
Rotary Hammer
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Pliers, Torx drivers, small hammer, reversible snapring pliers
Rotohammer was no longer hitting - broken connecting rod
1, Removed access covers
2. Remove hammer/drill selector lever
3. Remove front end and internals from housing back to the piston crank
4. Install piston on connecting rod using new wrist pin and O-ring
5. Install front end internals into front housing being careful to insert piston in barrel
6. Install hammer/drill selector lever
7. Add grease
8. Install access covers and test unit
2. Remove hammer/drill selector lever
3. Remove front end and internals from housing back to the piston crank
4. Install piston on connecting rod using new wrist pin and O-ring
5. Install front end internals into front housing being careful to insert piston in barrel
6. Install hammer/drill selector lever
7. Add grease
8. Install access covers and test unit
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Tool Type:
Nailer
Parts Used:
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
, Allen wrench
Would not shoot
Remove the top cap, replace head valve to solve problem, replace o-rings to avoid any leaks. Cleaned and oiled the internal parts.
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Product Information