Analog Speedometer Repair

Written by lynn rademacher
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Analog Speedometer Repair
Repairing an old speedometer can keep an old piece of equipment useful. (Jupiterimages/ Images)

Analogue speedometers are used for many applications, including on exercise equipment. Over time the gears of the speedometer can become dried out and brittle. When this occurs the gears break and the speedometer will stop working. A dysfunctional speedometer is frustrating to an avid exerciser trying to maintain a specific speed for a specific length of time. Repairing an analogue speedometer is a simple process that requires only basic hand tools. This can save significant amounts of money when compared to replacing the entire piece of equipment.

Skill level:

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Things you need

  • Small screwdriver set
  • New gears
  • Dish towel
  • Flathead or Phillips screwdriver (depending on how the speedometer is attached)

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  1. 1

    Remove the speedometer from the piece of exercise equipment by removing the mounting screw and loosening the mounting clamp.

  2. 2

    Turn the speedometer over in your hand and locate the screw(s) that is holding the case together around the speedometer. Remove the screws carefully with the small screwdriver set. Be careful not to lose these screws as you'll need them to reassemble the speedometer.

  3. 3

    Disconnect the cable plug from the bottom of the speedometer by pressing on the tabs on the sides of the plug and pulling the plug out of the speedometer.

  4. 4

    Spread a dish towel out on the table and place the speedometer on the towel. The dishtowel will help to prevent any small parts from bouncing away if you drop them.

  5. 5

    Examine the speedometer to locate which gears need to be replaced. Remove the small screws securing the gears in place with the small screwdriver set.

  6. 6

    Slide the damaged gears off of the spindle supporting them and place the new gear on the spindle. Secure the new gear in place by replacing the screw. Repeat this process for all gears that need replacement.

  7. 7

    Return the speedometer to the piece of exercise equipment and reattach the plug by pressing it into the bottom of the speedometer. Reattach the case around the speedometer and secure it back on to the equipment.

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