Nilfisk-Advance 56390900 Service Manual page 21

Wheel Drive System
FIGURE 1
S2
+
F2
RED
1 2
CIRCUIT BREAKER, 70 AMP
F3
RED BRN/YEL
1 2
CIRCUIT BREAKER, 10 AMP
SPST KEY
J4-1
HORN +
J4-7
HORN -
J2-8
ACC
S1
BRN
1 2
SW
THERMISTOR
INTERFACE
S P E E D L I M I T
E1
CONTROL BOARD
S1
R1
FIGURE 2
BRN/BLK
S2
F4
ORN
1 2
1 2
SW, SEAT
FUSE, 1 A.
ORN
ORN/BLU
RED/BLK
BLU/BLK
WHT/YEL
J2-9
VIO
YEL
J4-9
GRA
POT. LO
VIO YEL
1 3
J4-3
POT. HIGH
R1
POT. 5.75K OHM
BLK
FORM NO. 56043136 - Adgressor
E1
A1
M3
K3
1 2
CONTACT N.O.
ORN
K3 MAIN CONTACTOR
BLK
B-
RED/GRN
A2
YEL/BLK
M-
PIN 4 -- SPEED LIMIT
PIN 1 -- POT. HI
PIN 2 -- POT. WIPER
WHEEL DRIVE
PIN 3 -- POT. LO
A1
SPEED CONTROLLER
/ BR 850S, BR 1050S - 21
™
F2
-
BLK
M 3
M
+ -
Amps = 37
MOTOR