How to Replace the Power Cord on a Makita Angle Drill

The power cord is a two-wire, sixteen-gauge cord. Power cords tend to receive lots of abuse. The cord can be cut, nicked, internally damaged, or have the prongs broken. A damaged cord should be immediately replaced to avoid electrical shock.

Let's get started.

REMOVING THE POWER CORD   1. Remove the upper half of the handle.

a. Remove the screws securing the upper half of the handle to the lower half.

b. Lift the upper half of the handle away from the drill.

  2. Remove the cord clamp.

a. Remove the (2) screws securing the cord clamp.

b. Remove the cord clamp.

  3. Remove the power cord.

a. Use a small screwdriver to loosen the screw securing the white cord wire to the terminal block (connector).

b. Disconnect the white wire from the terminal block.

c. Lift the switch assembly away from the handle housing.

d. Remove the screw securing the black cord wire to the switch.

e. Disconnect the black cord wire from the switch.

f. Remove the cord from the unit.

g. Remove the cord protector from the power cord.

PREPARING THE NEW POWER CORD

  4. Prepare the new power cord.

a. Using the old power cord as a template, cut the wires of the new power cord to the same length as the old wires.

b. Strip approximately one-quarter of an inch of insulation from the black wire on the new power cord.

c. Install a new eyelet onto the (new) black wire.

d. Crimp the eyelet to secure it to the black wire.

e. Strip approximately three-eighths of an inch of insulation from the white wire on the new power cord.

f. Install the cord protector onto the new power cord.

INSTALLING THE NEW POWER CORD

  5. Install the power cord.

a. Install the eyelet terminal (on the new black wire) to the switch.

b. Secure the black wire to the switch with the screw.

c. Install the switch into the lower handle housing.

d. Tuck the switch wires back into the openings on the handle housing.

e. Install the new white wire into the terminal block.

f. Secure the white wire to the terminal block with the clamping screw.

g. Install the terminal block into the lower handle housing.

h. Install the cord protector into the lower handle housing.

i. Install the cord clamp.

j. Secure the new power cord (and cord clamp) with the two screws.

REASSEMBLING THE UNIT

  6. Reinstall the upper half of the rear handle.

a. Tuck any exposed wires into the lower half of the handle housing to prevent them from becoming pinched.

b. Install the upper half of handle.

c. Secure the upper half of the handle with the screws.