Bosch Ps21 Trigger Replacement Repair Guide

Difficulty

Moderate

Steps

5

Time Required

                          15 - 30 minutes            

Sections

2

• Battery
• 1 step
• Trigger
• 4 steps

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Introduction

It is necessary that the battery is removed prior to starting with this project to ensure that no injuries will happen when disconnecting the trigger from the motor.

What you need

Step 1

              Battery               

• Pinch the two release tabs on the sides of the battery, and slide the battery out.

Pinch the two release tabs on the sides of the battery, and slide the battery out.

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Step 2

              Trigger               

• Locate the clip that connects the two halves of the outer casing on the rear edge of the battery shaft. *Use the angled tweezers to remove the clip.
• Place the tweezers in the groove on the inside of the clip. Use your other hand to firmly brace the drill and pull towards your body until the clip comes loose.

Locate the clip that connects the two halves of the outer casing on the rear edge of the battery shaft. *Use the angled tweezers to remove the clip.

Place the tweezers in the groove on the inside of the clip. Use your other hand to firmly brace the drill and pull towards your body until the clip comes loose.

Step 3

• Locate the eight 5.5 mm screws located on the upwards facing side of the drill.
• Remove each screw using the T8 Torx driver, set aside in a safe place.
• After removing all the screws, use a small or medium metal spudger remove the casing to expose the motor and trigger.

Locate the eight 5.5 mm screws located on the upwards facing side of the drill.

Remove each screw using the T8 Torx driver, set aside in a safe place.

After removing all the screws, use a small or medium metal spudger remove the casing to expose the motor and trigger.

Step 4

• Place a finger under the metal tab seen here and lift gently up to free the trigger mechanism.
• Carefully grab the trigger assembly and gently pull upwards without taking too much out of place.

Place a finger under the metal tab seen here and lift gently up to free the trigger mechanism.

Carefully grab the trigger assembly and gently pull upwards without taking too much out of place.

Step 5

• Gently disconnect the two wires connecting the motor to the trigger utilizing a pair of pliers.
• The trigger assembly is Part #:1607233422

Gently disconnect the two wires connecting the motor to the trigger utilizing a pair of pliers.

The trigger assembly is Part #:1607233422

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

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                    Getsemani Gonzalez                     

Member since: 02/15/2016

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                       IUPUI, Team 1-2, Harley Spring 2016                        

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roadkingrick - Dec 22, 2019

Reply

mine has always operated flawlessly, then I was putting a few screws in the bedroom shelf and it worked fine. picked it up to change rotation and it is froze up. the trigger operates the lite and the batteries are fresh. but it will not turn, tried to turn with a wrench but its locked ? motor? gear drive or trigger? It doesn’t even seem as if its trying to turn when you pull the trigger?

?

Tony Savage - May 7, 2020

Reply

The most difficult step in this process is disconnecting the black wire from the defective switch. The wire enters the switch block however there is no sign of a screw or fastening one can disconnect to remove that wire! That step is ‘glossed over’. Any enlightenment from anyone would be welcome.