Shark IQ AV993 Front Caster Wheel Replacement

Written By: Kyle Rhines

Comments: 1

Shark IQ AV993 Front Caster Wheel Replacement

Difficulty

Moderate

Steps

Time Required

3 minutes

Introduction

This is the replacement guide for the front caster wheel on the Shark IQ AV993 robot. When replacing the wheel remember to be careful moving parts and taking things out of the robot as some pieces are very sensitive and easy to break. Replacing the front caster wheel is necessary if it is clogged with debris and the sensors are dirty, causing the wheel to not function properly.

Tools

Step 1

Unscrew the two 14 mm screws on the battery panel using a Phillips #1 screwdriver.

Step 2

Gently pull the white tabs on the battery straight upward.
There is a clip inserted into a plastic housing via wiring. Disconnect the battery by pressing in the clip.
Don't pull up on the battery too hard as a wire connects to the robot. Don't want to damage the wire here.
Remove the battery from the device.

Step 3

Remove the five 10 mm screws from the bottom of the device using a T15 Torx screwdriver.

Step 4

Pry both ends of the black piece to snap it out of place.

If this part is broken, where can I buy?

Jacque -

Step 5

Use both hands to lift the device.
The front bumper that is seated on the device will fall off.
This is completely normal, as the screws and the bottom holder are the only things holding the bumper in place.

Step 6

Flip over the vacuum so that the bottom is facing upwards.
Remove the five 14 mm screws using a T20 Torx screwdriver.

Step 7

Pull upward on the wheel to remove the wheel housing.
Carefully remove this as there is a clip connecting to the wheel.
Press the tab on the clip and slide the wires out of the housing.
Repeat this step and the previous step for the other wheel assembly.

Step 8

Remove the dust bin from the device by pressing down on the release button and pulling out the tray.

Step 9

Turn the device over so the bottom is facing upwards.
Press on the release tabs located on the roller brush cover.
Remove the cover from the device.

Step 10

Use your hands to lift the roller brush out of the device.

Step 11

Remove the five 14 mm screws from the bottom of the device using a T20 Torx screwdriver.

Step 12

Use your hands to lift the bottom of the vacuum away from the top plastic cover.
To lift this section off, you may need to apply slight pressure to the top plastic cover. If not, the cover should fall right off as it just rests on guide pins.

Step 13

Remove the three 10 mm screws using a Phillips #1 screwdriver.
Off to the right and left sides of the robot you will find one clip leading to a smaller independent board. Remove the singular 9 mm screw using a T15 Torx screwdriver to free the edges of the plastic element holding the motherboard down. Repeat this for the other side.
Detach the white connector from the plastic housing. Repeat this for the other side.
Do not pull on this housing element too hard, as they are not soldered onto the board very well. This could result ripping the housing clean off the board, rendering the device inoperable until reassembly.

Step 14

Unplug each of the thirteen connectors from their housings on the motherboard.
Using a spudger may be of assistance to leverage the smaller ones out.
Do not pull/pry on the connectors too hard, as they are not seated onto the motherboard very well. This could result in ripping one of the housings clean off the board, rendering the device inoperable until replacement.

Step 15

This clip holds all the wires in an organized manner and is a part of the plastic housing that needs to be removed.
Take the wires out of this clip so that the plastic cover can be free.

Step 16

As indicated this is the plastic cover we are trying to remove from the bot, clearly distinctive by the lip.
On either side of the bot, there are clips that insert into the upper plastic housing piece that hold the motherboard down. Popping these pieces off will free this covering, allowing the motherboard to be almost free.

Step 17

Remove the two 10 mm screws using a Phillips #1 screwdriver, freeing the motherboard from the plastic holdings below the board.

Step 18

Upon lifting up the motherboard, which will lift straight up, there is a singular clip that connects the rest of the bot. Unclip this, where the clip is large enough to undo with a finger.
Once this is removed, the motherboard and the plastic it is clipped to can be removed from the rest of the bot.

Step 19

The board is attached to the plastic frame by these spring-loaded clips. Pinch the bottom of these with some tweezers and push the ends through the hole they bore to remove them.
Once these two clips, one on either side, are removed, the motherboard will be independent from the plastic framing, ready to be replaced.

Step 20

Remove two 12 mm screws using a Phillips #1 screwdriver to loosen the front caster wheel.
Using some additional torque maybe required here, as these screws are held in very securely.

Step 21

Upon unscrewing those two screws completely, the plastic housing should fall out. If the wheel was already falling out, then the clip is what is needed.
This red clip belongs on the end of the piece highlighted in orange. Once broken off, it may be advantageous to replace the whole unit, but with some bending of this metal ring, it can be maneuvered back onto this metal piece. If this is not an option, replacement is the proper route here.

Conclusion

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

Author

Kyle Rhines

Member since: 26/10/22

558 Reputation

Shark IQ AV993 Front Caster Wheel Replacement

Introduction

Tools

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