Part Location Diagram of 766007-3 Makita 3/8" Keyless Drill Chuck
See part 25 in the diagram
Replacing your Makita Cordless Drill 3/8&#34 Keyless Drill Chuck
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3/8" Keyless Drill Chuck 766007-3

Manufactured by:
Makita
ERP Number:
ERP10154176
Part Number:
766007-3
Original Equipment Manufacturer ?
$21.76
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Easy 

15 - 30 mins 

(2 rated repairs) ?

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Product Description

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This is an authentic Makita replacement part that has been sourced from the original manufacturer for use with drills. The chuck attaches to the spindle assembly and is used as a vise that secures the drill bits. A screwdriver may be needed to install this item, please note the chuck is sold as an individual replacement part.

Troubleshooting

This part works with the following brands:
  • Makita
This part works with the following products:
  • Cordless Drill
  • Screwdriver

Videos For installing this part.

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Replacing your 3/8" Keyless Drill Chuck
Replacing your 3/8" Keyless Drill Chuck

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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.

Easy 

15 - 30 mins 

(2 rated repairs) ?
  • 1
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Broken gear shaft

Everett from Weatherford, Texas

7 of 7 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Pliers, Screw drivers
Parts Used:
127099-1, 766007-3
Strong suggestion for everyone: Get as much info and diagrams as you can before starting! Pay CLOSE attention to how it comes apart, take photos if possible.
1. I removed the drill chuck with a 1/4 \" blade screwdriver. Caution; REVERSE thread screw.
2. removed 6 housing screws and 2 retainer clips inside battery compartment.
3. Separated housing.
4. Photographed the reversing switch assy, then removed same.
5. Photographed and removed the speed switch (lost one of the two springs)..used spring from ball-point pen as replacement.
6. Using needle-nose pliers, disconnected motor wires.
7. Lifted motor and gear set out as one unit. (Make sure the clocking tab is not broken).
8. Separated motor and gear set.
9. Installed new Drill chuck onto new gear set.
10. CAREFULLY tighten drill chuck (nose down) into a vice, then remove the protective plastic plate from the gear-set. MAKE SURE the plate is on TOP, otherwise you may lose the gears.
11. install motor into gear set. you may need to wiggle the motor a bit to align the gears, and a twist will seat the motor properly.
12. Clock the unit with clocking tab toward the speed selector switch (top)
13. replace the drill chuck, gear set and motor into the housing as one unit.
14. Replace the motor wiring and reversing switch.
15 Replace the speed control. (This alone took me 30 minutes using needle-nose and mag. glass). Be patient, you\'ll get it.
16. Replace housing HAND tighten the screws.
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Chuck won\'t hold tight in =ƒö¿ time.

MARC from Koloa, Hawaii

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
Parts Used:
766007-3
Watched your ( I believe) video on how to replace. DONE!
https://www.youtube.com/watch?v=Tt2X_au5soc
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Model Cross Reference

This part works with the following models:
ERP Number: ERP10154176
Manufacturer Part Number: 766007-3
Brand Model Number Description
Makita AD02W Cordless Drill - 12V Max Lithium-Ion Cordless 3/8" Right Angle Drill Kit
Makita DF330D Cordless Drill - 10.8V 3/8&#34 Cordless Drill
Makita DF330DW Screwdriver - Screwdriver
Makita FD02W Cordless Drill - 12V max Lithium-Ion Cordless 3/8" Driver-Drill Kit