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When the trigger is pulled the drill does not respond.

The cord may have came unplugged from the outlet during use. If so, ensure the cord is plugged into a working outlet and try squeezing trigger again to rotate the bit. If this does not work, look below for other causes.

If the drill does not respond, it may have a faulty trigger switch that will need to be replaced. Follow this guide for replacement instructions Milwaukee Hole Hawg 1675-1 Switch Replacement.

When the drill is being used I see sparks from inside the housing.

Carbon brushes can become worn from contact with commutator during operation. Worn brushes can cause excessive sparking and will need to be replaced. Follow this guide for replacement instructions Milwaukee Hole Hawg 1675-1 Motor Brush Replacement.

Moisture inside the drill could be interfering with the electrical current. If moisture is noted, allow drill time to dry before resuming use.

When pressure is applied the drill bit slips or doesn’t spin at all.

To secure the drill bit, use the chuck key provided with the drill to turn the chuck clockwise until tightened for use.

The chuck holds the drill bit in place and after years of use it can become worn. The drill bit may begin to slip or not spin at all during use. This signals it is time to replace the chuck.

When using the drill, smoke and a burning smell are emitted.

The armature receives electricity from the carbon brushes during operation. Over time or if the drill is overloaded, the armature can overheat, and the insulation around the wires can burn. This will cause smoke or a burning smell coming from the motor along with sparking.

Insufficient lubrication may cause the gears to overheat, due to that excess heat it could burn off the reaming lubrication causing a burning smell .

The field works along with the armature, and over time or if the drill is overloaded, the field can overheat and the insulation around the wires can burn. This will cause smoke or a burning smell coming from the motor along with sparking. A damaged field can cause damage to the armature as well, so it should be inspected also.

if the drill does not respond, it may have a faulty trigger switch that will need to be replaced.