Difficulty

Moderate

Steps

41

Time Required

Suggest a time??

Sections

7

  • Karcher Rotary Floor Cleaner 17833080 2017 Initial Disassembly
  • 2 steps
  • Roller Brush and Suction Bar
  • 7 steps
  • Rotary Floor Cleaner 17833080 2017 Pump Cover Removal
  • 2 steps
  • Karcher Rotary Floor Cleaner 17833080 2017 Handle Removal
  • 9 steps
  • Karcher Rotary Floor Cleaner 17833080 2017 Housing Cover Removal
  • 3 steps
  • Gear Case
  • 13 steps
  • Drive Motor
  • 5 steps

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  • BackKarcher Rotary Floor Cleaner 1.783-308.0 (2017)

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Introduction

What you need

Step 1

              Remove the tank
  • Before you begin, make sure to power off and unplug the device.
  • Lift the tank by the handle and remove it from the device.

Before you begin, make sure to power off and unplug the device.

Lift the tank by the handle and remove it from the device.

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Step 2

              Remove the transport wheels
  • Press the yellow button near each wheel base to release the wheels.
  • Remove both wheels from their sockets.

Press the yellow button near each wheel base to release the wheels.

Remove both wheels from their sockets.

Step 3

              Lower the suction bars
  • Press the yellow foot switch at the base of the device to lower the suction bars.

Press the yellow foot switch at the base of the device to lower the suction bars.

Step 4

              Lock the handle in place
  • Raise the handle to the upright position.
  • This will engage the carriage rollers and lift the device.

Raise the handle to the upright position.

This will engage the carriage rollers and lift the device.

Step 5

  • Engage the retaining bracket to lock the handle in place.

Engage the retaining bracket to lock the handle in place.

Step 6

              Tilt the device over
  • Grasp the handle and carefully tilt the device onto its side.

Grasp the handle and carefully tilt the device onto its side.

Step 7

              Remove the roller brushes
  • Tilt the top of the roller brush out of the brush well.
  • Remove both roller brushes.

Tilt the top of the roller brush out of the brush well.

Remove both roller brushes.

Step 8

              Remove the suction bars
  • Press the yellow button on the suction bar retaining bracket to release the suction bar.
  • If you can’t see the yellow button, press the yellow foot switch at the base of the device to lower the suction bars.

Press the yellow button on the suction bar retaining bracket to release the suction bar.

If you can’t see the yellow button, press the yellow foot switch at the base of the device to lower the suction bars.

Step 9

  • Remove both suction bars.
  • Reassembly tip: When you re-insert the suction bars, be sure to orient the locking tab towards the center of the device. This allows the bars to click in place.

Remove both suction bars.

Reassembly tip: When you re-insert the suction bars, be sure to orient the locking tab towards the center of the device. This allows the bars to click in place.

Step 10

              Remove the pump cover
  • Use a T20 driver to remove the three screws securing the pump cover.

Use a T20 driver to remove the three screws securing the pump cover.

Step 11

  • Remove the pump cover.

Remove the pump cover.

Step 12

              Disconnect the handle
  • Squeeze the right plug by the edges and pull it out of its socket.
  • During reassembly, make sure that all plugs are firmly seated in their sockets.

Squeeze the right plug by the edges and pull it out of its socket.

During reassembly, make sure that all plugs are firmly seated in their sockets.

Step 13

              Loosen the left retaining bracket
  • Remove the following screws securing the left retaining bracket:
  • Four T40 screws
  • Two T20 screws

Remove the following screws securing the left retaining bracket:

Four T40 screws

Two T20 screws

Step 14

              Lock the handle in place
  • Raise the handle to the upright position.
  • This will engage the carriage rollers and lift the device.
  • Engage the retaining bracket to lock the handle in place.

Step 15

              Remove the right splash guard
  • Use a T20 driver to remove the two screws securing the right splash guard.

Use a T20 driver to remove the two screws securing the right splash guard.

Step 16

  • Remove the right splash guard.

Remove the right splash guard.

Step 17

              Remove the right retaining bracket
  • Use a T20 driver to remove the following screws securing the right retaining bracket:
  • Two 85 mm-long screws
  • Four 45 mm-long screws

Use a T20 driver to remove the following screws securing the right retaining bracket:

Two 85 mm-long screws

Four 45 mm-long screws

Step 18

  • Remove the right retaining bracket.

Remove the right retaining bracket.

Step 19

              Remove the handle
  • Lift the handle assembly away from the device and remove it.

Lift the handle assembly away from the device and remove it.

Step 20

              Reassembly tip
  • Reassembly tip: Be careful not to lose the two gray bushings on the ends of the handle assembly.

Reassembly tip: Be careful not to lose the two gray bushings on the ends of the handle assembly.

Step 21

              Disconnect the electrical plugs
  • Disconnect the two remaining plugs by squeezing the edges and pulling them out of their sockets.
  • The socket board should have no plugs connected to it.
  • Reassembly tip: The sockets reconnect to the following parts:
  • Vacuum motor
  • Pump
  • Handle
  • During reassembly, make sure to firmly seat all plugs in their sockets.

Disconnect the two remaining plugs by squeezing the edges and pulling them out of their sockets.

The socket board should have no plugs connected to it.

Reassembly tip: The sockets reconnect to the following parts:

Vacuum motor

Pump

Handle

During reassembly, make sure to firmly seat all plugs in their sockets.

Step 22

              Remove the brush housing
  • Use a T20 driver to remove the six screws securing the plastic brush housing.

Use a T20 driver to remove the six screws securing the plastic brush housing.

Step 23

  • Lift the brush housing away from the device and remove it.

Lift the brush housing away from the device and remove it.

Step 24

              Loosen the socket board
  • Use a T20 driver to remove the two screws securing the socket board.

Use a T20 driver to remove the two screws securing the socket board.

Step 25

              Disconnect the drive motor
  • Squeeze the edges of the drive motor plug and disconnect it from the extension plug.
  • The drive motor plug has red, brown, and gray wires feeding into it.

Squeeze the edges of the drive motor plug and disconnect it from the extension plug.

The drive motor plug has red, brown, and gray wires feeding into it.

Step 26

  • Free the motor wires from underneath the socket board.
  • Reassembly tip: Remember to feed the motor wires back underneath the socket board.

Free the motor wires from underneath the socket board.

Reassembly tip: Remember to feed the motor wires back underneath the socket board.

Step 27

              Remove the gear case cover
  • Use a T20 driver to remove the six bolts securing the gear case cover.

Use a T20 driver to remove the six bolts securing the gear case cover.

Step 28

  • Remove the gear case cover.

Remove the gear case cover.

Step 29

              Remove the ground screw
  • Remove the following bolts from the gear case:
  • Six T20 bolts
  • One T30 bolt securing the ground wire
  • Reassembly tip: The ground wire’s ring terminal should sandwich between a washer and a serrated washer.

Remove the following bolts from the gear case:

Six T20 bolts

One T30 bolt securing the ground wire

Reassembly tip: The ground wire’s ring terminal should sandwich between a washer and a serrated washer.

Step 30

              Remove the drive assembly
  • Lift the motor end of the drive assembly up slightly to clear the mounting lip.
  • Push the drive assembly out of its recess.
  • Reassembly tip: In order for the drive assembly to sit properly in its recess, the motor must clear the mounting lip. If you can’t push the motor in far enough, lift it up slightly to clear the lip.

Lift the motor end of the drive assembly up slightly to clear the mounting lip.

Push the drive assembly out of its recess.

Reassembly tip: In order for the drive assembly to sit properly in its recess, the motor must clear the mounting lip. If you can’t push the motor in far enough, lift it up slightly to clear the lip.

Step 31

  • Remove the drive assembly and stand it on the motor end.

Remove the drive assembly and stand it on the motor end.

Step 32

              Detach the gear case
  • Use snap ring pliers to remove the retaining ring securing the motor axle.

Use snap ring pliers to remove the retaining ring securing the motor axle.

Step 33

  • Use a T30 driver to remove the three bolts securing the gear case to the motor mount.

Use a T30 driver to remove the three bolts securing the gear case to the motor mount.

Step 34

  • Use a pry bar or flathead screwdriver to loosen the gear case from the motor mount.

Use a pry bar or flathead screwdriver to loosen the gear case from the motor mount.

Step 35

  • Lift the gear case away from the motor mount to remove it.

Lift the gear case away from the motor mount to remove it.

Step 36

              Reassembly tip
  • During reassembly, follow these tips:
  • The motor axle is keyed into the gearbox. Rotate the axle until it aligns with the gearbox slot.
  • Align the gear case to the motor mount using the two alignment pins.
  • Once everything is aligned, gently tap the gear case onto the motor mount.

During reassembly, follow these tips:

The motor axle is keyed into the gearbox. Rotate the axle until it aligns with the gearbox slot.

Align the gear case to the motor mount using the two alignment pins.

Once everything is aligned, gently tap the gear case onto the motor mount.

Step 37

              Remove the blower wheel
  • When you pry the blower wheel, try to apply pressure as close to the center of the wheel as possible.
  • Use a large flathead screwdriver or pry bar to pry the blower wheel off the motor axle.

When you pry the blower wheel, try to apply pressure as close to the center of the wheel as possible.

Use a large flathead screwdriver or pry bar to pry the blower wheel off the motor axle.

Step 38

  • Remove the blower wheel.
  • During reassembly, push the blower wheel onto the axle until it touches the axle base.

Remove the blower wheel.

During reassembly, push the blower wheel onto the axle until it touches the axle base.

Step 39

              Remove the motor mount
  • Use a 1/2" (or 13 mm) socket to remove the four bolts securing the motor to its mount.

Use a 1/2" (or 13 mm) socket to remove the four bolts securing the motor to its mount.

Step 40

  • Remove the motor mount from the motor.

Remove the motor mount from the motor.

Step 41

  • Only the motor remains.

Only the motor remains.

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

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Author

                    Arthur Shi

Member since: 01/03/2018

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