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Service Manual: SC750, SC800, SC 750 ST, SC800 ST
REVISIONS
A
REV ECO DATE DFTM APPD
RELEASE
DWG. NO. SHEET
AGREES TO RETURN IT UPON REQUEST.
PLYMOUTH, MINNESOTA AND IT HAS BEEN ISSUED W ITH THE UNDERSTANDING THAT IT WILL NOT BE REPRO-
DUCED NOR COPIED NOR USED FOR ANY PURPOSE OTHER THAN FOR WHICH IT WAS ISSUED AND RECIPIENT
THIS DRAWING AND THE DESIGN REPRESENTED HEREON IS THE PROPERTY OF NILFISK-ADVANCE, INC.,
CONFIDENTIAL
AS NOTED.
UNITS IN [ ] ARE ISO METRIC
DIM. IN [ ] ARE MM.
NOTES UNLESS OTHERWISE
SPECIFIE D
1. ALL DIMENSIONS IN INCHES.
2. DO NOT SCALE DRAWING.
3. ALL DIMENSIONS APPLY AFTER
PLATING AND HEAT T REATING,
BUT BEFORE PAINTING.
4. REMOVE ALL BURRS AND SHARP
EDGES.
APPROVED
APPROVED
APPROVED
CHECKED
FIRST USED ON
SHEETASSY.
SIZE CODE
REV.DWG. NO.
TITLE
D
SCALE
PLYMOUTH, MINNESOTA 55447-3408
DRAWN
PROJ ENG
E
NILFISK-ADVANCE, INC.
ORCAD
A
1
B C D E F G
A B C D E F G
2
3
4
5
1
2
3
4
5
56383889
56383889
A-10397 4-17-14 PMO WCR
1 OF 1
DIAGRAM-LADDER AXP
SC750 AXP
NONE
56112E05 1 OF 1
KEY SWITCH
B+
B+
A1
CONTROL BOARD
+ CHEMICAL PUMP
- CHEMICAL PUMP
BRUSH REMOVE
CONTACTOR
VACUUM CONTACTOR
SOLUTION
CHARGER INTERLOCK
FOR/REV
STATU S
REV
BRUSH ACT +
BRUSH ACT -
B-
ACT POS 0
(RETRACTED)
ACT POS 1
(MIDDLE)
ACT POS 2 /
BATT CHGR COMM
(EXTENDED)
B-
B-
B-
B-
B-
BRUSH SENSE
A2
PG DRIVES SPEED
CONTROLLER
MODEL I24-70
B-
B+
AUX2 OUT
STATUS OUT
AUX3 OUT
SPEED LMT WIPER
THROTTLE HIGH REF
THROTTLE WIPER
THROTTLE LOW REF
AUX1 OUT
0 VOLTS OUT
REV SWITCH IN
M1
M2
A5
LASER MODULE
(OPTIONAL)
B-B+
CHARGER OPTIONAL
ACTUATOR MOTOR
( OPTIONAL )
J1-1
J1-3
J3-14
J3-1
J3-8
BRUSH CONTACTOR
J3-3
J3-12
J3-13
J3 -11
J1-8
J2-1
J2-7
J2-8
J3-2
J2-10
J2-9
J3-4
J3-6
J3-7
J3-5
KEY SW IN
J1-4
J1-5
J2-2
J2-3
J2 -11
J2-12
POLARITY, DISC BRUSHES
(OPTIONAL)
A4
HOUR METER
1
2
34
N.C.
J4-13
J4-12
J5-2
J4-8
J4-1
J4-2
J4-9
J4 -11
J4-10
J4-3
J4-5
POT.
SPEED
LMT
POT.
THROTTLE
SLOWSLOW
FASTFAST
POLARITY, CYLINDRICAL BRUSHES
POLARITY, REV2 DECK
B
A-10639 7-03-14 JDK
REDRAWN INTO ORCAD
UPDATE: ASSY FROM 56383890 TO 56112E05,
NOTES 1, 2, AND 3
ADD: CHARGER OPTIONS & TRACKCLEAN
CONNECTIONS, TRACKCLEAN TAPS,
CONTACTOR INDICATORS, NOTES 4 & 5,
MOD: SYMBOL L1 AND R3
DETAIL A - WITH ACCESS CONTROL
X004
NO CONN.
X008
X009
TRACKCLEAN CONNECTIONS (OPTIONAL)
AB
123
DETAIL B - WITHOUT ACCESS CONTROL
X004
X001 - B+ (RED)
X002 - B- (BLUE)
X003 - SCRUB (WHITE)
X004 - KEY SWITCH (BROWN)
X005 - VACUUM (GRAY)
X006 - DRIVE (PINK)
X007
X008 SEE DETAIL DIAGRAMS
X009
4-16-14 PMO
2
2
2
2
2
TO 1B3
TO 1A4
TO 1A3
TO 1A3
TO 1B4
TO 1A3
4-16-14 WCR
OPTION 1 OPTION 2 OPTION 3
1 2 3
JUMPER X83
NO CHARGER
CHARGER OPTIONS
1 2 3
PMO
3
3
4
J6
4
NOTES:
1. REF DRAWING 56383890 DIAGRAM AXP WIRING.
2. CONNECTORS WITH X00X ARE TRACKCLEAN CONNECTIONS.
3. IF TRACKCLEAN OPTION IS INSTALLED, REFER TO TRACKCLEAN
CONNECTIONS AND EITHER DETAIL A OR B.
4. REFER TO CHARGER CONNECTIONS FOR ONBOARD CHARGER
CONFIGURATIONS.
5. CONTACTORS WILL HAVE THE SHEET NUMBER, THEN GRID LOCATION
OF THEIR SECOND HALF NEXT TO THEIR SYMBOL.
6. SEE KEY SWITCH DETAIL FOR TRACK CLEAN CONNECTIONS.
7. REFERENCE 56384627 AND 56384628 FOR TRACK CLEAN SCHEMATICS.
8. USED FOR REVERSE SWITCH ON ST MACHINE
C
ADD: BLK WIRE TO M5, JUNCTION TO M3 & M4,
X004, KEY SWITCH DETAIL
A-11690 10-05-15
MG
KWK
X004
6
VACUUM SENSE
D
UPDATE: A2, AUX2 OUT J4-3 WAS J4-9
ADD: NOTE 8
A-11686 01-21-16 SMJ SMJ
8
BRN
(MACHINE)
BRN
(MACHINE)
BRN (TRACKCLEAN)
E
A-11911 02-09-16
MG MG
UPDATE: TRACKCLEAN CONNECTIONS
(DETAIL A, DETAIL B)
E
E
E
BRN (MACHINE)
BRN (MACHINE)
E
E
E
BRN
BLK
BLK
BLK
BLK
YEL/ORG
YEL/REDGRA/BRN
GRA/RED
BRN
BLK
GRA
PINK
WHT/ORG
WHT/BLK
WHT
BLK
GRN
BLU/GRA
RED/YEL
GRA/BLK
GRA/ORG
BRN
BRN
BRN
BRN
PINK
GRA
YEL
WHT/BLU
WHTRED
RED BLK
RED
BLK
ORN
BLK
YELRED BRN
WHT
BRN
BLK
YEL
WHT/BLU
BRN
WHT
BRN
WHT
BLU
PINK BRN
WHT
BRN
BLK
WHT
WHT
YEL/ORG
YEL/ORG
BLK
RED
BLU
GRA
WHT/RED
BRN
BRN
BLK
ORN
BLK
BLK
RED
BRN
BLK YEL/BRN
BLK
BLK
BLK BLK
BLK
BLK
K2
CONTACTOR, BRUSH
BAT
BATTERY, 24 Vdc
+ -
M
M4
MOTOR, RIGHT BRUSH
-+
AB
123
~
B+ B-
GND
CHARGER S.P.E.
K2
DPST, NOCO
M
M4
CHEMICAL, PUMP
-+
S3
SW, SPST KEY
1 2
S1
POS 1 SW
L1
SOLENOID, SOLUTION
1 2
X005
K1
CONTACTOR, VACUUM
X002
M
M5
MOTOR, VAC
S3
SW, SPST KEY
1 2
~
B+ B-
GND
LEDS
TEMP
SENSE
C3
12
13
5
14
A B
WHT
BLK
CHARGER DELTA Q WITH LED
M
M3
MOTOR, LEFT BRUSH
- +
M
M3
MOTOR, LEFT BRUSH
- +
R2 R1
F1
FUSE, 150 A.
1 2
S3
SW, SPST KEY
1 2
X007
X001
R3
3.9k
X006
K3
CONTACTOR, BRUSH REMOVE
M
M4
MOTOR, RIGHT BRUSH
- +
S2
POS 0 SW
K1
CONTACTOR, VACUUM
SP2
CB1
CIRCUIT BREAKER, 30 A.
1 2
F2
INLINE FUSE 3A
M
M4
MOTOR, RIGHT BRUSH
- +
M
M1
MOTOR, WHEELDRIVE
-
+
IMMOBILIZER RELAY
M
M3
MOTOR, LEFT BRUSH
-+
CB2
CIRCUIT BREAKER, 10 A.
1 2
X003
K3
CONTACTOR, BRUSH REMOVE
M
M2
BRUSH HEAD ACTUATOR
-+
S0
POS 2 SW
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