Hamilton Beach 70740 Internal Switch Replacement Repair Guide

Difficulty

Difficult

Steps

Time Required

                          20 minutes

Sections

Bowl and Lid
1 step
Power Knob
1 step
Base
2 steps
Internal switch
2 steps

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Introduction

What you need

Step 1

              Bowl and Lid

Turn the bowl counterclockwise and lift.

Turn the bowl counterclockwise and lift.

1024

Step 2

              Power Knob

Using the heavy duty spudger pry the plastic knob off the front of the processor.

Using the heavy duty spudger pry the plastic knob off the front of the processor.

Step 3

              Base

Using a #2 Phillips head screwdriver, remove the two 11 mm screws from the base.
Pull suction cups straight out.

Using a #2 Phillips head screwdriver, remove the two 11 mm screws from the base.

Pull suction cups straight out.

Step 4

Remove rubber caps using the heavy duty spudger.
Remove the four 11 mm screws using the #2 Phillips head screwdriver.
Pull base straight out.

Remove rubber caps using the heavy duty spudger.

Remove the four 11 mm screws using the #2 Phillips head screwdriver.

Pull base straight out.

Step 5

              Internal switch

Remove the two 11 mm screws using the #2 Phillips head screwdriver.

Remove the two 11 mm screws using the #2 Phillips head screwdriver.

Step 6

Cut all four red wires using the wire stripper crimping tool.
Using the wire stripper crimping tool strip the ends of each red wire and insert them into a new wiring connector cap, then crimp firmly.
Cut the white wire using the stripper crimping tool.
Using the wire stripper crimping tool strip the ends of each of the white wires and insert them into the opposite ends of a parallel connector, then crimp firmly.

Cut all four red wires using the wire stripper crimping tool.

Using the wire stripper crimping tool strip the ends of each red wire and insert them into a new wiring connector cap, then crimp firmly.

Cut the white wire using the stripper crimping tool.

Using the wire stripper crimping tool strip the ends of each of the white wires and insert them into the opposite ends of a parallel connector, then crimp firmly.

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

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Author

                                      with 2 other contributors

                    Travis Williams

Member since: 02/02/2017

552 Reputation

                                      5 Guides authored                  



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Team

                       USF Tampa, Team 17-4, Blackwell Spring 2017                        

                                                  Member of USF Tampa, Team 17-4, Blackwell Spring 2017 



                    USFT-BLACKWELL-S17S17G4                     


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                                            7 Guides authored

Mitchell Arends - Feb 2, 2021

On our unit the control knob became stuck. Where can I get a new control knob? Do you happen to know the part number?

joanneferrato - Jan 5, 2023

I used a hair dryer and that did the trick, but am wondering if WD 40 would work as well. I went online e with the company and they want $2.00 for tech advice which is dumb to me. At first I thought it was the locking device on top; it is actually the pulse switch and my machine is just over a year old.

Introduction#

What you need#

Team#

Introduction

What you need

Team