PLDC04453
REVISION 00
December 23, 2020
TECHNICAL OFFIC
Stavale
1
Em
t
the solution tank and the dirt
water tank.
Brin
to zero the amount of water dis
ensed.
3
Move the machine onto flat dr
and smooth floorin
.
4
Press the emer
enc
switch to switch off all the functions.
5
Make sure that the batteries on the machine are char
ed.
Use a clam
-on ammeter with an end scale readin
of at least 200 am
eres, as shown in Fi
ure 1.
7
Remove the brush head cover.
Lift one of the machine’s two drive wheels
see
ara
ra
h C 2.1.
9
Move the s
eed knob on the instrument
anel to zero, turnin
it anticlockwise.
10
Remove the brush head cover, unscrewing the four screw.
11
Switch the ammeter to am
eres and DC.
CHECKING POWER INPUT FOR EACH INDIVIDUAL MOTOR
Alternatively, electrically disconnect one motor, and then check the power input of the
other motor, both at no load and when working.
Checkin
the current with no load
i.e. without brushes.
1
Remove the brushes and lower the head usin
the s
ecial
edal control.
13
Turn the emer
enc
button clockwise.
14
Press the button on the instrument
anel to activate the brushes.
15
Controllin
the rotation of the brushes usin
the drive lever
read the CURRENT
A
drawn by the brush reduction drive; for practicality, hold the lever in place with string.
1
Note down the value read, and then run the followin
check.
Checking the current in operation, i.e. with the brushes.
17
Re
lace the brushes on the reduction drive, and lower the brush head to the floor.
1
Re
eat the readin
s, as described above.
19
Com
are the values measured a
ainst the chart below.
20
If the values are OK, re
lace the brush motor cover.
21
If the values do not corres
ond to those s
ecified
hi
her
:
21a
Check that the brush drive
and thus the motor
is free to rotate, without interference.
21b
Check the
ower su
l
OLTAGE
V
directl
on the
oles of the motor.
21
Check that the motor carbon brushes are intact, re
lace if necessar
.
21d
Re
lace the defective motor or motors.
A1.1 Checking current input
Fig. 2
Fig. 3
3 of 73
