![background image](http://html1.mh-extra.com/html/multiquip/mayco-ls300g/mayco-ls300g_operation-manual_1855385088.webp)
PAGE 88 — MAYCO LS300G CONCRETE PUMP • OPERATION MANUAL — REV. #2 (09/09/19)
ELECTRICAL SYSTEM DIAGRAM 2
1
2
3
4
5
6
7
8
INSIDE
CONTROL
BOX
OUTSIDE
CONTROL
BOX
P1
P1
J1 MALE
INTERFACE
CONNECTOR
2
ENGINE
CONNECTOR 1
(16 PIN)
A
E
1
2
3
4
5
6
7
8
INSIDE
CONTROL
BOX
OUTSIDE
CONTROL
BOX
P5
P5
J5 MALE
INTERFACE
CONNECTOR
TO EMERGENCY
STOP SWITCH #2
(BOTTOM MIDDLE)
1
2
3
4
5
6
7
8
INSIDE
CONTROL
BOX
OUTSIDE
CONTROL
BOX
P6
J6 MALE
INTERFACE
CONNECTOR
D
77
ZENITH ECU
CONNECTOR
(80 PIN)
+12 VDC TO FUEL PUMP (PINK/DK GREEN)
FUEL PUMP
C
GND. TO FUEL PUMP (BLK/RED)
67
79
8
+12 VDC IGNITION POWER (PINK)
6
TO EMERGENCY
STOP SWITCH #2
(BOTTOM RIGHT)
151K OHM
RESISTOR
G
CHECK ENGINE LOW LEVEL DRIVER LAMP
P6
4
3
CAN BUS (+)
CAN BUS (-)
72
N
P
BLUE/PINK
BLUE/WHITE
TO CONTROLLER
CAN BUS (+)
CAN BUS (-)
TWISTED
PAIR
70
57
+12 VDC
ZENITH ECU
CONNECTOR
(80 PIN)
ENGINE
CONNECTOR 1
(16 PIN)
+12 VDC INPUT START REQUEST
3 AMP
FUSE
FUSE
HOLDER
FUEL LEVEL
TO CHASSIS
GND.
+12 VDC
FRONT
REAR
FUEL GAUGE
18 AWG RED (S)
S
G
FUEL LEVEL
SENDER UNIT
PIN 1
+12 VDC INPUT
IGNITION
PIN 2
DIMMER
ADJUST NOT USED
PIN 3
GND.
PIN 4
NOT USED
PIN 5
SENDER (+)
PIN 6
SENDER (-)
FUEL GAUGE
PIN CALL OUTS
(GREEN/YELLOW)
18 AWG RED
MANIFOLD
MAIN
SOLENOID
SWING B
CONTROLLER
GROUND
+12VDC OUT
4
3
14 AWG RED
18 AWG RED
14 AWG BLK
18 AWG RED
18 AWG BLK
18 AWG WHT
WIRING CONNECTIONS TO J1, J5
AND J6 RECEPTACLES
ON DIGITAL CONTROL BOX (LS300G)
18 AWG WHT
18 AWG WHT
18 AWG WHT
18 AWG WHT
18 AWG BLK (G)
TO
DISPLAY BD.
STARTER
RELAY
87
A
G
R
M
J1
J2
J3
J4
J5
CONTROL
BOX REAR
VIEW
J6
A
L
43
SUPPLIED
WITH
ENGINE
K
Summary of Contents for MAYCO LS300G
Page 2: ...PAGE 2 MAYCO LS300G CONCRETE PUMP OPERATION MANUAL REV 2 09 09 19 PROPOSITION 65 WARNING...
Page 5: ...MAYCO LS300G CONCRETE PUMP OPERATION MANUAL REV 2 09 09 19 PAGE 5 NOTES...
Page 73: ...MAYCO LS300G CONCRETE PUMP OPERATION MANUAL REV 2 09 09 19 PAGE 73 NOTES...
Page 85: ...MAYCO LS300G CONCRETE PUMP OPERATION MANUAL REV 2 09 09 19 PAGE 85 HYDRAULIC SYSTEM DIAGRAM...