tennat NOBLES S6 Manuel d'utilisation
PLDC04348
REVISION DATE
November 09, 2020
DATE
November 06, 2020
TECHNICAL OFFICE
S6 / Scout 6
TECHNICAL SERVICE MANUAL
PLDC04348
REVISION 00
November 09, 2020
TECHNICAL OFFICE
Contents
A1.1 Checking centre brush motor current draw................................................................... 7
A1.2 Checking for wear on centre brush drive belt, and replacement................................... 8
A1.3 Replacing the centre brush transmission belt ............................................................... 10
A1.4 Inspecting and replacing the centre brush motor carbon brushes ................................ 11
A1.5 Replacing the centre brush motor................................................................................. 14
A1.6 Replacement of centre brush........................................................................................ 15
A2.1 Checking the power draw of the side brush motor........................................................ 17
A2.2 Inspecting and replacing the side brush motor carbon brushes ................................... 18
A2.3 Replacing the side brush motor .................................................................................... 22
A2.4 Adjusting the height of the side brush ........................................................................... 23
A3.1 Checking the power draw of the brushes Up/Down actuator........................................ 25
A3.2 Replacing the brushes actuator .................................................................................... 27
B1.1 Checking suction motor current draw............................................................................ 30
B1.2 Removing the suction motor ......................................................................................... 31
B2.1 Checking lter shaker current draw............................................................................... 35
B2.2 Removing the lter shaker motor .................................................................................. 36
C1.1 Replacing the front wheel ............................................................................................. 38
D1.1 Preliminary checks........................................................................................................ 41
D1.2 Disassembly and electrical connection of the power circuit board ............................... 42
D1.3 Power board programming ........................................................................................... 44
D1.4 Disassembly and electrical connection of the display circuit board .............................. 48
D1.5 Testing the display pcb buzzer...................................................................................... 49
D1.6 Checking the connection between display circuit board and ........................................ 50
power circuit board ....................................................................................................... 50
D2.1 Wiring Diagram ............................................................................................................. 51
E1.1 Troubleshooting............................................................................................................. 53
E1.2 Display circuit board troubleshooting ............................................................................ 57
TECHNICAL SERVICE MANUAL REVISIONS-UPDATES .................................................... 58
PLDC04348
REVISION 00
November 09, 2020
TECHNICAL OFFICE
PLDC04348
REVISION 00
November 09, 2020
TECHNICAL OFFICE
November 30, 2020 5 of 58
GIMPORTANT
Take the machine to the waste disposal area, clean the
suction lter and empty the dirt bin.
Move the machine onto at ground and apply the brake.
If necessary, place chocks under the wheels.
Switch the machine o by turning the ignition key
anticlockwise and/or pressing the emergency switch
Disconnect the electronic circuit from the batteries by
detaching one or both battery connectors.
i INFORMATION
Important information
When consulting this Service manual, the reader will
encounter the expressions RIGHT and LEFT indicating the
side of the machine. These indications always refer to the
direction of movement of the machine.
In this Service Manual, the version of the machine may
be written in brackets “()”, i.e. (E, DP-P, P, D). This note
indicates that the instructions only refer to the model or
version specied in brackets.
A BRUSH UNIT
PLDC04348
REVISION 00
November 09, 2020
TECHNICAL OFFICE
November 30, 2020 6of 58
A1 CENTRE BRUSH MOTOR
The electric motor driving the centre brush is a standard brushed type, tted internally with
two carbon brushes. More exactly, the motor is a 12V DC unit of maximum rated power 80W
and maximum speed 2500 rpm. The motor is of totally enclosed design aording optimum
protection against the penetration of solids, but not against the ingress of liquids; accordingly,
the machine should be used only in dry surroundings. The motor is driven by the power circuit
board, the functions of which include ramp start and continuous monitoring of power draw, so
that the ground pressure of the brush selected at the control panel can be maintained constant.
i
PLDC04348
REVISION 00
November 09, 2020
TECHNICAL OFFICE
November 30, 2020 7of 58
A1.1 Checking centre brush motor current draw
1Undo the xing screws of the top cover, and remove the cover.
2Make sure that the batteries on the machine are charged (12 V ± 1 V).
3Use a clamp-on ammeter with a full scale reading of at least 200 A (amperes).
4Move the machine onto a at and smooth oor to ensure a correct current reading.
5Pick out the Red wire of the centre brush motor and apply the clamp-on ammeter to it.
6Run the brush at speed 2, selected by way of the control panel.
7Take note of the reading on the ammeter display and compare it with the values in the table.
8If the value falls within the range indicated in the table, disconnect the instrument and reinstate the top cover of
the machine.
9Conversely, if the value is at variance with those indicated in the table, proceed to make the following checks.
10 Disassemble the side brush and check that the current draw under no-load conditions is within the values in table.
10a
Should the reading indicate a value dierent to those in the table (typically higher), check for wear on the
carbon brushes of the motor, also for wear on the drive belts and cleanliness of the relative pulleys, and
for noise from the pulley bearing.
10b If the reading is within the range of values indicated in the table, check that the brush is not rubbing on the sides
or on the roller, and that there is no abnormal noise coming from the centre brush free wheel bearings.
10c Replace the brush motor with a new one.
Uncouple the side brush to ensure a more accurate reading.
G
6
Current draw A (amperes) Min Max
No load (without brushes) 2.7 A 3.3 A
Load applied (brushes operating) 5.5 A 6.5 A
Carry out the test with the machine at standstill to ensure the brush is not rotated 'against' the
drive, as this could result in a higher current draw reading.
G
5
PLDC04348
REVISION 00
November 09, 2020
TECHNICAL OFFICE
November 30, 2020 8of 58
A1.2 Checking for wear on centre brush drive belt, and replacement
Disassembly
1Move the machine onto at and dry ooring.
2Make sure that there is enough room around the machine to perform the dismantling operations safely.
3If necessary, clean the working area with a jet of compressed air.
4Undo the xing screws of the top cover, and open the cover.
5Disconnect the two connectors (red and black).
6Undo the 2 safety straps securing the battery.
7Remove the battery.
The drive belt will need replacing typically when worn to the point of breaking. However, in
order to avoid machine downtime, it may be useful to replace the belts in advance, before they
break. Belt wear can be seen on the surface in contact with the pulleys, which is smoother and
shows small cracks, as well as by fraying at the top edge of the belt.
i
5 6
PLDC04348
REVISION 00
November 09, 2020
TECHNICAL OFFICE
November 30, 2020 9of 58
Reassembly
1To reassemble, repeat the disassembly operations in reverse order.
8Loosen the xture of the left hand arm and remove the pivot, then proceed to detach the xture.
9Remove the bush from the left hand arm.
10 Remove the left bottom lateral guard and shift the arm, drawing it way from its usual position.
11 Position the machine on its left hand side and loosen the xture of the right hand arm, removing the pivot so that
the xture can then be detached.
12 Undo the 2 screws of the right lateral guard.
13 Shift the right bottom guard downwards.
14 Check the belt condition.
89
12 13
14
10
PLDC04348
REVISION 00
November 09, 2020
TECHNICAL OFFICE
November 30, 2020 10 of 58
A1.3 Replacing the centre brush transmission belt
Disassembly
1Move the machine onto at and dry ooring.
2Make sure that there is enough room around the machine to perform the dismantling operations safely.
3If necessary, clean the working area with a jet of compressed air.
4Remove the battery.
5Access the belt as explained in the previous heading.
6Remove the side brush motor and loosen the hex head screw to remove the bracket.
7In order to release the belt, the motor pulley must be moved toward the pulley of the centre brush; accordingly,
loosen the two hex head screws and ease the motor toward the brush.
8Remove the belt from the motor pulley, then proceed to unseat it from the pulley of the centre brush. Once the
belt is completely clear of the pulley groove, it can be removed.
Take care when removing and assembling the belt from/onto the pulley; use protective leather
work gloves.
G
Reassembly
1To ret the belt, repeat the disassembly operations described above in reverse order.
7
6
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