Rusty Impact Driver Restoration | Makita 6919D

I found this impact driver from Japan recycle shop without a battery. It looks very old, but I believe that it will work after the restoration. I rebuild new battery with lithium cells 18650 and BMS 3S20A. It's designed to be different from the impact driver I've ever had, It's a little tricky to get it in pieces. You can see it in detail in the video. The problems with this tool are dirty, old grease, old paint, no battery, and no charger.
* Impact driver information
- Model 6919D
- Electric motor DC magnet motor
- Battery Nickel metal hydride battery
- Voltage DC 12V
- Rotation speed 0 to 2,600 min-1 (rotation / minute)
- Number of hits 0 to 3,200 min-1 (times / minute)
- Tightening torque maximum 110 N ・ m (1120 kgf ・ cm)
M14 (Strength classification: 10.9) When tightening high-strength bolts for 3 seconds
- Tightening ability Machine screw: M4 to M8, Ordinary bolt: M5 to M12
High-strength bolt: M5 to M10, Course thread: 22 to 120mm
- Airframe dimensions Length 163mm x Width 94mm
× Height 215mm
- Weight 1.5Kg
* New battery pack
- Voltage 12.6V
- Capacity 3Ah
- Battery type Li-ion
* BMS 3S20A is a battery management system for 12V battery pack
* Lithium-ion battery cell
- Brand model: LG INR18650HG2
- Standard capacity: 2800- 3000mAh
- Rated voltage: 3.6V
- Charging voltage: 4.2±0.05V
- Maximum continuous discharge current: 20A
- Discharge cut-off voltage: 2.5V
- Weight: Max.47.0g
- Size: Max.18.2×65.2 mm
- Charge and discharge times: 500 times
I hope you find this video useful and enjoy it!
Furthermore, I am happy to receive feedback, suggestions to improve myself.
!!! I'm sorry for the mistake if I did in this video !!!
Thank you very much for choosing to watch my video!
Have a nice day
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