Nilfisk-Advance 56314019, Service Manual

Page: 31 / 82

SCRUB BRUSH SYSTEM
FORM NO. 56043089 / AquaRide
™
/ BRX 700 - 29
FIGURE 1
SCRUB BRUSH SYSTEM TROUBLESHOOTING
On all models the scrub system’s major electrical components are monitored by the main controller (E1) to detect any system function failures
(error codes). The system components covered are the brush motor(s) (M7 & M8), brush solenoid (K1) and brush lift actuator motor (M1). Detected
error codes from the main controller are displayed on the hour meter LED display (G) as they occur. Note: Reference the Main Control Board
Troubleshooting Guide in the Electrical System of this manual for specifi c fault descriptions and service repair actions.
M7
MO
TO
R,
B
RU
SH
Am
ps
=
2
2
M
K1
CO
NT
A
CT
N.
O
.
K2
S2
M8
M
K1
CO
N
TA
CT
O
R ,
B
RU
SH
A
m
ps
=
.3
3
M1
B
RUS
H L
IF
T
AC
TU
AT
O
R
Am
ps
=
3
M
F2
To
W
heel D
riv
e M
ot
or
L1
S1
F3
F4
R1
PO
T.
5
K O
H
M
1
2
3
RE
D
BL
K
RE
D
RE
D
B
RN
/YEL
BR N/YEL
BRN
RED/ WH T
ORN /B LK
GR
A
VI
O
BL
U
/BL
K
RE
D
/B
LK
BR
N
/BL
K
BL
K
WH
T/
B
RN
WH
T/
B
RN
BRN /W HT
WH
T/
RE
D
WH T/R ED
RE
D
BL
K
YEL /VIO
BL
K
BLU
BL
K
BL
U
YEL /VIO
BLK
BRN /W HT
BR
N
OR
N
OR
N
OR
N
/B
LU
OR
N
VI
O
YEL
YEL
B+ 1
B+ 2
KEY S W.
SEAT SW.
PO
T.
O
U
T
PO
T.
IN
REV.
FOR. /R EV.
PI
N
1
3 -
- PO
T.
L
O
PI
N
3
--
PO
T.
H
I
PI
N
4
--
PO
T.
W
IPE
R
PIN 16 - R EV. ALAR M
PIN 6 -- BR AKE
B+
B- M2 M1
PIN 8 -- SLO W/F AS T
AC
C
BRU SH
B- 1
B- 2
B- 3
B- 4
A1
SP
EED
C
O
N
TR
O
LL
ER
IN
TE
RF
A
CE
TH
ER
M
IS
TO
R
I -- BR US H
E1
CO
N
TRO
L B
O
A
RD
SPEED LIM IT
J4-8
J2-5
J3-5
J3-6
J4-1 2
J4-2
J2-1
J2
-8
J2-7
J2-6
J2-1 0
J3-1
J3-4
J4-1 1
J4-1 0
J4-4
J4
-9
J4
-3
PIN 5 -- KSI
STAT US
J4-5
PIN 9 -- STAT US
J2
-9
PI
N
1
8 -
- SPE
ED
L
IM
IT
GN
D
MO
TO
R,
B
RU
SH
Am
ps
=
2
2
+
+
+
12
L2