EBK 360
Shop Manual

EBK 360 Power Nozzle and Wand

This Service Guide is designed as a reference tool to help pinpoint service needs of the Wessel-Werk EBK 360 Electric Brush.

Required Tools
o #10 Torx Screw Driver
o Mini Flat Head Screww Driver
o Common Multi-Meter
Common Spare Parts
o Brush Assembly Complete
o Geared Belt
o Motor Complete
o Electrified Neck Complete
o Wiring Harness
o LED light panel
o Set of 3 ’Wago’ wire connectors (2×3 pole wire 1×4 pole wire)

Warning!
o Do not over tighten screws as screw holes can become stripped.
o When refastening screws always use the original thread pitch of the screw hole.
Failure to use the original screw orientaion will likely drill-out material and strip hole.
o Easiest way to find the original thread orientation is by counter rotating the screw before turning the screw into the hole.
o Manually replace screws! Use of a power screw driver is not recommended for reassembly.

Only Use original replacement parts!
For best results- Only Use original replacement parts!
To avoid warranty invalidation only use original replacement parts!
Wago® wire connectors are not to be reused!
It is recommended that the base of the nozzle be supported during re-assembly so that the rear wheels are not under load. Pressure on the rear wheels during re-assembly will likely cause difficulty during reassembly. Parts may bind and not seat properly if pressure is not removed from the rear wheels during re- assmebly.

Belt change

Under normal use the belt is almost maintenance-free. Occasionally when the brush is suddenly blocked the belt can jump over the motor or brush gear. Frequent abrupt stoppage may damaged or destroy the belt.

Remove Top Cover
o Depress Neck Release Pedal
o Place nozzle bottom up on non-marking surface
o Remove 8 X #10 Torx screws- Note 3 longer screws are in front of the brush roller
o Collect Screws-set aside for reassembly
o Turn Nozzle right side up
o Lift cover
o Assure pedals stay secure in cover housing
Remove Secondary/Motor Cover
o Remove clear plastic neck release lever and return spring-set aside
o Free wiring harness and LED light bar from storage positions in secondary cover
o Remove 3 X #10 Torx screws-set aside
o Lift secondary cover slide by wiring harness-set aside
Remove Brush Roller Asembly
o Lift Roller Assembly while guiding end cap past belt Remove Belt
o Guide belt past drive gear on motor
Replace Belt
o Only use original spare part 19,1 016-300
o Guide new over gear on motor
o Guide new belt over end cap of brush roll
Replace Brush Roller
o Place brush roller assembly with belt over gear into base assembly
o Note: Narrow side of end cap faces down.
Reverse Steps above to re-assmble the power head
o Make certain all wires are returned to their original positions
o Take care when placing the neck assembly into its original position. The 2 yellow wires from the neck must move freely through the ‘gate’ under the neck axis pivot. Be certain wires do not become ‘pinched’.

In conclusion-Conduct Electrical and Mechanical Function Test

Change Brush Roller

The brush roller is a wear item. Depending on usage and flooring type the brush will become worn and will need to be replaced.

Only replace the complete brush assembly (brush, axels, bearings, end caps).
Remove Top Cover
o Depress Neck Release Pedal
o Place nozzle bottom up on non-marking surface
o Remove 8 X #10 Torx screws- Note 3 longer screws are in front of the brush roller
o Collect Screws-set aside for reassembly
o Turn Nozzle right side up
o Lift cover
o Assure pedals stay secure in cover housing

Remove Secondary/Motor Cover
o Remove clear plastic neck release lever and return spring-set aside
o Free wiring harness and LED light bar from storage positions in secondary cover
o Remove 3 X #10 Torx screws-set aside
o Lift secondary cover slide by wiring harness-set aside

Remove Brush Roller Asembly
o Lift Roller Assembly while guiding end cap past belt
Check for wear or damage of belt
o Replace if necessary
Replace Brush Roller
o Only use original spare part # xxxxx-xxxxx.
o Guide new belt over end cap of brush roll
o Place brush roller assembly with belt over gear into base assembly
o Note: Narrow side of end cap faces down.
Reverse Steps above to re-assmble the power head
o Make certain all wires are returned to their original positions
o Take care when placing the neck assembly into its original position. The 2 yellow wires from the neck must move freely through the ‘gate’ under the neck axis pivot. Be certain wires do not become ‘pinched’.

In conclusion-Conduct Electrical and Mechanical Function Test

Motor Replacement

The expected life of the motor is roughly the expect life of the entire power nozzle.
The replacement of a failed motor is not recommended without the replacement of other components, such as; brush roll and belt.

Remove Top Cover
o Depress Neck Release Pedal
o Place nozzle bottom up on non-marking surface
o Remove 8 X #10 Torx screws- Note 3 longer screws are in front of the brush roller
o Collect Screws-set aside for reassembly
o Turn Nozzle right side up
o Lift cover
o Assure pedals stay secure in cover housing
Remove Secondary/Motor Cover
o Remove clear plastic neck release lever and return spring-set aside
o Free wiring harness and LED light bar from storage positions in secondary cover
o Remove 3 X #10 Torx screws-set aside
o Lift secondary cover slide by wiring harness-set aside
Disassemble Wiring Harness
This product comes with 3 Wago® wire connectors. Wago wire connectors are not to be reused. If wires are removed from the Wago connector, the connector must be discarded and a new connector used as a replacement.
o It is necessary to remove all of the wires from 2 of the Wago connectors
o The connector that does not have a wire going directly to the motor will not be disturbed
o Force a mini screw driver into one of the wire channels of the Wago (IIlus.

1)

o Pullout the wire and the screw driver simultaneously (IlIus. #2)
o Continue process until all wires have been removed from the 2 connectors
o Discard old connectors
Remove Motor
o Remove the 2 screws holding the motor mounting plate, set plate and screws aside
o Remove motor taking care not to disturb belt
Check for wear or damage of belt
o Replace if necessary
Replace Motor
o Set motor with rubber motor mount in place taking care that belt is around the geared pulley of the motor
o Replace motor mounting plate and plate screws.
o Set motor wires back into their original slot

Re-assemple wiring harness
o Using new Wago connectors press wires into their original postions in the wire connectors
o Assure all wires are in their original positions (Review wiring diagram in the later section is necessary!)
o Assure all wires are secure in the Wago connectors
Reverse Steps above to re-assmble the power head
o Make certain all wires are returned to their original positions
o Take care when placing the neck assembly into its original position. The 2 yellow wires from the neck must move freely through the ‘gate’ under the neck axis pivot. Be certain wires do not become ‘pinched’.

In conclusion-Conduct Electrical and Mechanical Function Test

Replace Circuit Breaker

Although unlikely it is possible that the circuit breaker fails.

Remove Top Cover
o Depress Neck Release Pedal
o Place nozzle bottom up on non-marking surface
o Remove 8 X #10 Torx screws- Note 3 longer screws are in front of the brush roller
o Collect Screws-set aside for reassembly
o Turn Nozzle right side up
o Lift cover
o Assure pedals stay secure in cover housing

Disassemble Wiring Harness
This product comes with 3 Wago® wire connectors. Wago wire connectors are not to be reused. If wires are removed from the Wago connector, the connector must be discarded and a new connector used as a replacement.
o It is necessary to remove all of the wires from 2 of the Wago connectors
o The 4 pole wire connector will not need to be replaced
o Remove all wires from the 2 three pole Wago connectors (It is best to keep track of the wire groupings to facilitate reassembly)
o Force a mini screw driver into one of the wire channels of the Wago (IIlus.

1)

o Pullout the wire and the screw driver simultaneously (IlIus. #2)
o Continue process until all wires have been removed from the 2 connectors
o Discard old connectors
Replace Circuit Beaker

Re-assemple wiring harness
o Using new Wago connectors press wires into their original postions in the wire connectors
o Assure all wires are in their original positions (Review wiring diagram in the later section is necessary!)
o Assure all wires are secure in the Wago connectors
Reverse Steps above to re-assmble the power head
o Make certain all wires are returned to their original positions
o Take care when placing the neck assembly into its original position. The 2 yellow wires from the neck must move freely through the ‘gate’ under the neck axis pivot. Be certain wires do not become ‘pinched’.

In conclusion-Conduct Electrical and Mechanical Function Test

Wiring Diagram

Wiring Diagram

o Yellow Lead wires come directly from the Neck Assembly
o Note wires are secured in cross shaped wire holder molded into base plate

o These white wires are the lead wires from the motor

o Connect 2 white wires from the LED light circuit board

o Install Circuit Protector

o Install electronic noise suppressor

Electrical/Mechanical Function Test

Electircal Function Test
o Under no resistance (brush is free floating)
o Approximate Power usage is 1.25 Amps
o Check that all 5 LED lights work

Mechanical Function test
Bloock Brush test
o Block Brush Roll with shop rag
o Turn unit on
o Circuit breaker should activate in 6-8 approximately seconds
o Disconnect power! Required!
o Allow breaker to cool – approximately 30 seconds
o Un-block brush roll – Re-connect Power – Motor and light should activate
Test Height Adjustment Mechanism
o Height of nozzle and indicator should change one position up then return one postion down each time the pedal is depressed
Test neck release Mechanism
o Depress neck release pedal
o Assure that neck releases
o Place neck into the fully upright position and assure that neck automativcally locks into place
Test neck swivel/pivot funtion
o With neck released test that neck has ~90º unrestricted movement up and down
o With the neck released test that the neck has ~180º of rotation left to right

Troubleshooting

1. No Power to the nozzle
   a) Check with a Multi-Meter that there is a 120 volt power supplied at the end of the wand.
   b) Conduct a visual inspection to assure that there is no damage to the 2 pins in the neck assembly. The pins should be nearly flush to the top of the neck. Replace neck assembly if damage is observed.
   c) Test PTC breaker. Breaker can easily be checked with a Multi Meter. Disconnect all power from nozzle. Simply check continuity of breaker. With power off there shoudl be continuity through the breaker.

2. Powerhead does not pick-up debris
   a) Check airflow from vacuum
   b) Check nozzle for blockage
   i) Visually inspect inside neck assembly
   ii) Visually inspect air intake near the brush roller

3. Motor Operates but brush does not turn
   a) Check condition of belt
   b) Replace if necessary

EBK 360

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