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PAGE 72 — MAYCO LS400/LS500 PUMP — OPERATION AND PARTS MANUAL — REV. #6 (09/19/11)
LS400/LS500 PUMP — WIRING DIAGRAM (CONTROL BOX)
Figure 63. Connections to Digital Control Box - J3 and J4 Connectors ( 1 of 2)
1
2
3
4
5
6
7
8
4
3
2
1
8
7
6
5
J3 MALE
INTERFACE
CONNECTOR
(YELLOW)
INSIDE
CONTROL
BOX
OUTSIDE
CONTROL
BOX
P3 P3
87
6
5
43
2
1
J3
87
6
5
43
2
1
J4
INSIDE
CONTROL
BOX
OUTSIDE
CONTROL
BOX
YELLOW
WHITE
CONTROLLER
BLACK
POTTED
BOX
A
B
INSIDE
CONTROL
BOX
OUTSIDE
CONTROL
BOX
A
A
A
1
2
3
4
5
6
7
8
4
3
2
1
8
7
6
5
P4 P4
YELLOW
YELLOW
WHITE
YELLOW
WHITE
J1
J2
J3
J4
J5
CONTROL
BOX REAR
VIEW
PROX C
PROX D
PROX B
ENG SOL POWER 35A1SEC
PROX A
POWER
GROUND
AUTO LUBE
FLOWA 12VDC
FLOW B 12VDC
BROKEN FAN BELT
ORANGE
BLUE
OVER TEMP
CONNECTIONS TO J3 AND J4 CONNECTORS ON
DIGITAL CONTROL BOX (LS400 AND LS500)
A
B
C
16AWG WHITE
16AWG GREEN
16AWG BROWN
16AWG BLUE
+12 VDC
16AWG BROWN
16AWG BLUE
GND.
SIGNAL
SIGNAL
PROXIMITY
SWITCH “B”
PROXIMITY
SWITCH “A”
BLACK
BLUE
BROWN
16AWG RED 12VDC
16AWG BLACK
ACCUMULATOR
DUMP VALVE
“UNLOADER”
HEAT EXCHANGER
“COOLING FAN”
G
F
+12 VDC
14AWG RED
GND.
14AWG BLACK
D
V-BELT BREAK
SWITCH
+12
H
2
1
FLOW CONTROL
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
E
A
UNLOADER
BLUE
INDICATOR “RED”ACTIVE
BETWEEN GND. 800 mV
A
B
C
A
J4 MALE
INTERFACE
CONNECTOR
(WHITE)
87
6
5
43
2
1
J3
87
6
5
43
2
1
J4
12VDC
30
17
58
19
15/54
50A
A
IGNITION
SWITCH
NOT USED
1
WHEN MEASURING VOLTAGE
AT CONNECTOR P4 PINS 2 AND 3.
PLACE NEGATIVE LEAD OF
VOLTMETER TO FLOW CONTROL
BODY (GROUND).
NOTE:
1