Skil 1743 Aa Corded Sds Hammer Drill Disassembly Repair Guide

Difficulty

Moderate

Steps

Time Required

                          20 - 30 minutes

Sections

Skil 1743-AA Corded SDS+ Hammer Drill Disassembly
12 steps

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Introduction

What you need

Step 1

              Skil 1743-AA Corded SDS+ Hammer Drill Disassembly

The Skil 1743-AA Cordles SDS+ Hammer Drill is an affordable tool for serious hole drilling. Note that this one had its labels removed and the cord cut off for educational purposes.

The Skil 1743-AA Cordles SDS+ Hammer Drill is an affordable tool for serious hole drilling. Note that this one had its labels removed and the cord cut off for educational purposes.

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Step 2

Make sure the drill is not plugged in. In our case, this was easy.
With a Phillips size 2 screwdriver, unscrew the four 40mm screws from the front body.
The front comes right off. Unfortunately this part is very rigidly put together, in fact so rigidly we were not able to disassemble it any further.

Make sure the drill is not plugged in. In our case, this was easy.

With a Phillips size 2 screwdriver, unscrew the four 40mm screws from the front body.

The front comes right off. Unfortunately this part is very rigidly put together, in fact so rigidly we were not able to disassemble it any further.

Step 3

Flip over the rear body, and unscrew the 9 20mm screws.

Flip over the rear body, and unscrew the 9 20mm screws.

Step 4

With a pry tool, separate the two halves. You might need to go all around before they come loose.
Take a moment to admire all that is inside.

With a pry tool, separate the two halves. You might need to go all around before they come loose.

Take a moment to admire all that is inside.

Step 5

Unscrew the two 15mm screws that secure the cord.
The cord and its cradle look like one part, but actually they aren’t.

Unscrew the two 15mm screws that secure the cord.

The cord and its cradle look like one part, but actually they aren’t.

Step 6

Before we go any further, release the rotor from the motor assembly. Beautiful thing to behold, no?
You might need to lift the bearing from its position behind the motor in order to take the rotor out.

Before we go any further, release the rotor from the motor assembly. Beautiful thing to behold, no?

You might need to lift the bearing from its position behind the motor in order to take the rotor out.

Step 7

With pliers, cut the cable ties that secure the cable tree.

With pliers, cut the cable ties that secure the cable tree.

Step 8

The complete innards should come out easily.

The complete innards should come out easily.

Step 9

We are now going to take out the power cable. Its leads are attached to the trigger box.
With a size 3 slotted screwdriver, unscrew the two 10mm brass screws to release the power cord.

We are now going to take out the power cable. Its leads are attached to the trigger box.

With a size 3 slotted screwdriver, unscrew the two 10mm brass screws to release the power cord.

Step 10

Pull apart the trigger and polarity switch boxes.
With your size 3 slotted screwdriver, or the pry, pry off the lid of the polarity switch. Using this switch the current to the motor is reversed to it turns the other way.
Interesting spring mechanism!

Pull apart the trigger and polarity switch boxes.

With your size 3 slotted screwdriver, or the pry, pry off the lid of the polarity switch. Using this switch the current to the motor is reversed to it turns the other way.

Interesting spring mechanism!

Step 11

Flip over the polarity swith box. The brushes that transfer power to the motor are attached inside here.
The wires are not soldered which allows you to replace the brushes. Don’t lose the springs that hold ’em in place though!

Flip over the polarity swith box. The brushes that transfer power to the motor are attached inside here.

The wires are not soldered which allows you to replace the brushes. Don’t lose the springs that hold ’em in place though!

Step 12

You have completed the disassembly!

You have completed the disassembly!

To reassemble your device, follow these instructions in reverse order.

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                    Oscar Verbeek

Member since: 03/07/2018

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Team

                       Delft University of Technology, Team S2-G8, Flipsen Winter 2018                        

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Introduction#

What you need#

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Introduction

What you need

Team