This speed control switch is an authentic Hitachi replacement part, it is not an aftermarket imitation. It is a high quality item designed for use with cordless hammer drills. This is the main switch that allows user to turn the tool on and off and control its speed as well. Please note, this plastic switch is sold individually. You will need a screwdriver to replace this item.
Dc-speed Control Switch 333640
OEM part for: Metabo HPT (Hitachi)
Part Number: 333640
Compatibility
This Dc-speed Control Switch will fit the following 11 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Metabo HPT (Hitachi)
Show More Compatible ModelsThis item works with the following types of products:
- Drill Parts
- Cordless Drill Parts
- Hammer Drill Parts
This part replaces obsolete part #: 322-994
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Shattered handle and power,switch
Tool Type
Cordless Drill
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Power Drill, Soldering iron
I recommend taking several detailed pictures with your smart phone paying special attention to which wires attach to which terminals of the switch
Very carefully remove the internal parts keeping them together as one unit and make note that the motor has a keyed slot that will need to be aligned into the new handle
Melt the solder off of the old broken switch 4 wires total
Solder wires onto the new switch in the same way they were removed - if you get this wrong the drill may operate backwards
Clean up the parts and pieces removing any old build up and check the brushes - they may need to be replaced - grease rotating elements - I used white lithium grease
I recommend leaving the brushes out until reassembly is almost done
Install the parts in to the new handle - pay attention to the keyed slot in the motor and align it to the handle first
Snap in the remaking parts
Screw the two halves of the handles back together paying attention that all of the wires are in the internal grooves of the handles and don't let them get pinched as you screw the halves together
Insert the brushes
Speed control switch
Tool Type
Cordless Drill
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Solder iron
Parts Used
Power switch
Tool Type
Hammer Drill
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Power Drill, Solder
Parts Used
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
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