SECTION 6 – ELECTRICAL

GENERAL ANTI-TWO-BLOCK SYSTEM OPERATION

This section contains the general safety precautions The anti-two-block system prevents the hook sheave
which must be observed duing maintenance of the block from contacting the boom nose with conse-
crane It is of utmost importance that maintenance quent structural and hoist cable damage. The electro-
personnel pay strict attention to these warnings and hydraulic system utilizes (one) solenoid valve and
precautions to avoid possible injury to themselves or derives electrical power from the plus terminal of
others or damage to the equipment. A maintenance the power relay.
program must be establishjed by a qualified person
Power is cut to the telescope out and hoist up func-
and must be followed to ensure that the machine is
tions in the event that the sheave block contacts the
safe to operate.
anti-two-block counterweight suspended on the hoist
cable beneath the boom nose.
WARNING: MODIFICATION OF MACHINE
WITHOUT CERTIFICATION BY A The normally open (NO) switch, mounted to the
RESPONSIBLE AUTHORITY THAT THE boom nose, is held closed by the counterweight.
MACHINE IS AT LEAST AS SAFE AS This switch opens when the hookblock comes into
ORIGINALLY MANUFACTURED IS A SAFETY contact with the counterweight. The switch opens
VIOLATION.

A2B
A2B Counterweight
Counterweight

A2B
Counterweight

One, Three, and Five Two and Four

Part Line. Hang weight Part Line. Hang weight
Hoist
18 in. from boom nose. 25 in. from boom nose.
Cable
Counterweight
Assembly
Pins

Figure 6-1. Anti-Two-Block Positions

7600006-030 Rev. 0 Manitowoc Boom Trucks 6-1

 SECTION 6 – ELECTRICAL

the circuit to the solenoid valve, thus directing fluid cate an energized coil. Red lights indicate a
flow back to the tank. deenergized coil.
A spring-loaded cable reel, mounted on the side of Relays are the same on all circuits. Fuses are of the
the base section, permits extension and retraction of standard, automotive-style push-in type and can be
the electrical cable. Roller guides prevent damage to purchases at most automotive parts stores.
the cable while permitting smooth cable extension
A second, cab electrical box, located under the seat,
and retraction.
distributes electrical control to the switches on the
The counterweight suspension chain will have to be operator’s platform and back to the main electrical
adjusted according to the number of parts of lines box. No relays or fuses are located in the cab electri-
being used. cal box.
There are several “open” wires in the cab electrical
ELECTRICAL SYSTEM
box for powering options, such as lights. The num-
The electrical system consists of a main electrical ber of open circuits will depend upon the level of
box located at the left front outrigger. Power enters equipment ordered when built.
the crane electrical system from the battery. A power
solenoid turns power to the crane functions on and ELECTRICAL HARNESSES
off. Usually, a signal wire from the PTO switch
Located on the side of the electrical box are four
ground operates the power solenoid through a relay.
plugs. Harnesses connect to:
This can vary, depending upon the type of PTO
installed. 1. PTO, fuel solenoid, and starter solenoid.
A circuit board distributes power to the various 2. Swivel assembly (two).
functions. The circuit board contains relays and
fuses and a flasher. The relays have color lights to 3. Outrigger valves and warning lights.
indicate the status of the circuit. Green lights indi-

USTC FRAME BOX BD. ASSY. 0610252 REV.

ENGINE

FUEL START SPARE CRANE PWR

IGN. SWITCH
3A
COLLECTOR 2

LOAD
MONITOR
Connector
20A
IGN. SW PTO OK E-STOP MAIN
25A
COOLING FAN
20A
SPARE
20A
POWER IN

ACC. 1
20A
ACC. 2
20A
OUTRIGGER MOTION
BEAM JACK
20A
RAW BATT. Power
Solenoid
COLLECTOR 1B

FLASHER
SWITCHES

COLLECTOR 1A

LR EXTEND LR RETRACT RR EXTEND RR RETRACT

OUTRIGGERS
LEDS

Connector
LF EXTEND LF RETRACT RF EXTEND RF RETRACT

Figure 6-2. Circuit Board

6-2 Manitowoc Boom Trucks October 1, 2000

 SECTION 6 – ELECTRICAL

Swivel

To Cab
Switches To Valves
To Fuel
Solenoid
To Cab
Switches
To PTO

To Starter
Solenoid Ground
Electrical Box

Cab
Assembly
Cab
Electrical Box
To
Accessories

To Battery
Left Side Connections
Ground
Electrical Box
To Directional
Control Valve To Front
Outrigger Valves

To Outrigger
Warning Lights

To Outrigger
Warning Lights

To Rear
Outrigger Valves

Figure 6-3. Electrical Harnesses

7600006-030 Rev. 0 Manitowoc Boom Trucks 6-3

 SECTION 6 – ELECTRICAL

Each harness has a different style plug and cannot be OVERLOAD SYSTEM
inserted into the electrical box incorrectly. Indi- The overload system monitors the pressure differ-
vidual wires are labelled according to function or ence between the extend and retract ports. This
location. pressure difference is compared to a load chart
If a wire becomes pinched or broken, it may be stored in the computer’s memory chip. If the ma-
repaired by splicing a new piece of wire into the chine is overloaded the system will not allow the
broken area. machine to boom down, boom up, telescope out or
hoist up. An override key is provided to allow the
boom up function to operate, which may be needed
in certain situations.

LOAD MOMENT INDICATOR

For information on the Load Moment Indicator
(LMI), refer to the PAT DS350 manual which was
shipped with the crane.

6-4 Manitowoc Boom Trucks October 1, 2000

7600006-030 Rev. 0

Figure 6-4. Electrical Schematic

CAB BOX

CAB VALVES AND BOOM HARNESS

J6

COLLECTOR RING AND BOOM DOWN ENABLE SOLENOID A 1 16GA

FASTON
GROUND B 2 16GA GREEN
FASTON
CONNECTOR ASSEMBLY BOOM UP ENABLE SOLENOID C 3 16GA
FASTON
PED CONNECTOR INTERCEPT HARNESS GROUND D 4 16GA GREEN
FASTON
FRAME BOX TELE OUT ENABLE SOLENOID E 5 16GA
FASTON
GROUND F 6 16GA GREEN
FASTON
HOIST UP ENABLE SOLENOID G 7 16GA
FASTON
FRAME-CAB HARNESS A GROUND H 8 16GA GREEN
FASTON
9 16GA
J13 J7 J14 J10 A2B SWITCH J
10 16GA
1 16GA 1 1 1 PRESSURE OVERLOAD SWITCH K
J2 SPARE WIRE BOOM1 A A A A SPARE WIRE BOOM1 11 16GA
2 12GA 2 2 2 REMOTE STOP SWITCH L
14GA 1 SPARE WIRE CABRLY2 B_12G B_12G B_12G B_12G SPARE WIRE CABRLY2 12 16GA
A KEY SWITCH C
3 3
C C
3 3
C
SPARE BOOM HARNESS 1 M
14GA 2 13 16GA
B PTO SWITCH 4 12GA 4 4 4 +12VDC N
14GA 3 ACCESSORY 1 +12V D_12G D_12G D_12G D_12G ACCESSORY 1 +12V 14 16GA GREEN
FASTON C PTO LIGHT + 5 12GA 5 5 5 GROUND P
14GA GREEN 4 ACCESSORY 2 +12V E_12G E_12G E_12G E_12G ACCESSORY 2 +12V
FASTON D PTO LIGHT - 6 16GA 6 6 6 HD34-18-14
12GA 5 FUEL RELAY F F F F FUEL RELAY
#10 RING E STARTER CONTACTOR 7 7 7 7
12GA 6 G_12G G_12G G_12G G_12G HD36-18-14PN-059
F FUEL SOLENOID 8 16GA 8 8 8
12GA 7 SPARE WIRE CAB1 H H H H SPARE WIRE CAB1
CAPPED G SPARE WIRE CABRLY2 9 16GA 9 9 9
CAPPED 12GA 8
H OIL COOLER 12V +
OUTRIGGER STROBE J
10 16GA 10
J J
10 10
J OUTRIGGER STROBE
HD34-18-8
CAB ACCESSORY HARNESS
SPARE WIRE ENGRLY2 K K K K SPARE WIRE ENGRLY2
HD34-18-8_L 11 16GA 11 11 11 1 ACC1+ 12GA
START SWITCH START SWITCH ACCESSORY 1 +12V 1/4" RING

SECTION 6 – ELECTRICAL
L L L L A
Manitowoc Boom Trucks

ENGINE HARNESS HD36-18-8SN-059 F/LEFT BEAM M

12 16GA 12
M M
12 12
M F/LEFT BEAM ACCESSORY 2 +12V B
2 ACC2+ 12GA
1/4" RING
13 16GA 13 13 13 3 ACC1- 12GA GREEN
F/LEFT JACK N N N N F/LEFT JACK ACCESSORY 1 GROUND C 1/4" RING
14 16GA 14 14 14 4 ACC2- 12GA GREEN
F/RT BEAM P P P P F/RT BEAM ACCESSORY 2 GROUND D 1/4" RING
15 16GA 15 15 15 5 FRAME-GND 12GA GREEN
F/RT JACK R R R R F/RT JACK SEAT FRAME GROUND E 1/4" RING
16 16GA 16 16 16 6 LD-MON+ 14GA
R/LEFT BEAM S S S S R/LEFT BEAM WYLIE POWER +12V F FASTON
17 16GA 17 17 17 7 LD-MON- 14GA GREEN
R/LEFT JACK T T T T R/LEFT JACK WYLIE POWER GROUND G FASTON
18 16GA 18 18 18 8 LD-MON-OUT 14GA
R/RT BEAM U U U U R/RT BEAM WYLIE OVERLOAD OUTPUT H FASTON
19 16GA 19 19 19
R/RT JACK V V V V R/RT JACK J1
20 16GA 20 20 20
EXTEND W W W W EXTEND
21 16GA 21 21 21 HD36-18-8PN-059
RETRACT X X X X RETRACT
HD34-24-21PN HD34-24-21_L HD34-24-21PN HD34-24-21_L

OUTRIGGER HARNESS HD36-24-21PN-059 HD34-24-21SN-059 HD36-24-21PN-059 HD36-24-21SN-059 CAB SWITCH HARNESS

J3 J5
16GA 1 1 CABRLY1 16GA
FASTON A F/LEFT BEAM SPARE WIRE CABRLY1 A FASTON LF-SW2
FASTON 16GA 2
B F/LEFT JACK HD34-18-8
FRAME-CAB HARNESS B HD34-18-8 J22 OVERLOAD LAMP B
2 OL-LAMP+ 16GA
FASTON RF-SW2
J21
16GA 3 3 OL-LAMP- 16GA GREEN
FASTON C F/RT BEAM 1 12GA 1 1 1 LAMP GROUND C FASTON LR-SW2
16GA 4 12VDC PWR A A A A 12VDC PWR 4 BOOM-OR-SW1 16GA
FASTON D F/RT JACK 2 12GA 2 2 2 BOOM DOWN OVERRIDE SWITCH D FASTON
16GA 5 12VDC PWR B B B B 12VDC PWR 5 RR-SW2
FASTON E R/LEFT BEAM 3 12GA 3 3 3 SWITCH COMMON +12V E
16GA 6 WYLIE PWR C C C C WYLIE PWR 6 BEAM-SW2
FASTON F R/LEFT JACK 4 12GA GREEN 4 4 4 SWITCH COMMON +12V F
16GA 7 WYLIE GROUND D D D D WYLIE GROUND 7 SPARE-A-SW2
FASTON G R/RT BEAM 5 12GA GREEN 5 5 5 SWITCH COMMON +12V G
16GA 8 DC GROUND E E E E DC GROUND 8 KILL-SW1 16GA
FASTON H R/RT JACK 6 12GA GREEN 6 6 6 ENGINE KILL SWITCH H FASTON START-SW2
16GA 9 DC GROUND F F F F DC GROUND 9 KILL-SW2 16GA
FASTON J EXTEND 7 12GA GREEN 7 7 7 ENGINE KILL SWITCH J FASTON BOOM-OR-SW2
16GA 10 DC GROUND G G G G DC GROUND 10 CAB1 16GA
FASTON K RETRACT H
8 8
H H
8 8
H
SPARE WIRE CAB1 K FASTON SPARE-B-SW2
16GA 11 11 CAB2 16GA
L OUTRIGGERS ACTIVE STROBE OUTRIGGER STROBE L FASTON
16GA 12 J8 HD34-18-8_L J9 HD34-18-8_L 12 ENGRLY2 16GA
M SPARE WIRE O1 SPARE WIRE ENGRLY2 M FASTON
16GA 13
N SPARE WIRE O2 HD36-18-8PN-059 HD34-18-8SN-059 HD36-18-8PN-059 HD36-18-8SN-059 START SWITCH N
13 START-SW1 16GA
FASTON
16GA 14 14 LF-SW1 16GA
P SPARE WIRE O3 F/LEFT BEAM SW O FASTON
15 LF-SW3 16GA
HD34-18-14_L F/LEFT JACK SW P FASTON
16 RF-SW1 16GA
HD36-18-14SN-059 F/RT BEAM SW Q FASTON
17 RF-SW3 16GA
F/RT JACK SW R FASTON
18 LR-SW1 16GA
R/LEFT BEAM SW S FASTON
19 LR-SW3 16GA
R/LEFT JACK SW T FASTON
BATTERY CABLES ENTER THROUGH R/RT BEAM SW U
20 RR-SW1 16GA
FASTON
RR-SW3
SEALED STRAIN RELIEFS AND R/RT JACK SW V
21
22 BEAM-SW1
16GA
16GA
FASTON
CONNECT TO INTERNAL TERMINAL STRIP EXTEND SWITCH W
23 BEAM-SW3 16GA
FASTON
RETRACT SWITCH X FASTON
HDP24-24-23

HD36-24-23PN-059

BATTERY
4933057B-1
6-5
 SECTION 6 – ELECTRICAL

ELECTRICAL ENCLOSURE
14 BLUE
13 BLUE
12
11
10
9
8 PCB
7
6 RED
5
4
3 GND
2
1
RED

GND
VALVE
HARNESS

4933057B-2

Figure 6-5. Crossover Valve Connections

6-6 Manitowoc Boom Trucks October 1, 2000

7600006-030 Rev. 0

Figure 6-6. Ground Box Printed Circuit Board - Outriggers

D1 152516 152976
EXTEND_LED
1 1 1 16AWG WHT

1N4007 RETRACT_LED
2 2 2 16AWG WHT
D2 RR_JACK_LED
3 3 3 16AWG WHT

RR_BEAM_LED
4 4 4 16AWG WHT
1N4007 5 5 5 16AWG WHT
RF_JACK_LED
D3
RF_BEAM_LED
6 6 6 16AWG WHT

1N4007 LR_JACK_LED
7 7 7 16AWG WHT
D4 D5 LR_BEAM_LED
8 8 8 16AWG WHT

LF_JACK_LED
9 9 9 16AWG WHT
1N4007 6A6 10 10 10 16AWG WHT
D6 K1 LF_BEAM_LED
D7 11 11 11 14AWG GRN

LN21RPHL
87A
1N4007 30
12 12 12 14AWG GRN

D55
D8 6A6 87
OUTRIGGER MOTION LED J7

1N4007 86 GND FRAME BOX PCB-INTERNAL

D9 85 +POWER 152546 SWITCHES HARNESS

1.2K 1/2W
1N4007 VF4-15F11 1
F/LEFT BEAM

R7
D10 1N4007 FLASHER OUTRIGGER_STROBE
2
F/LEFT COMMON
3
D11 F/LEFT JACK
1N4007 4 TO INTERNAL SWITCHES
F/R BEAM
GND 5
F/R COMMON
GND 6
F/R JACK
7
R/LEFT BEAM

SECTION 6 – ELECTRICAL
8
R/LEFT COMMON
Manitowoc Boom Trucks

9
R/LEFT JACK
10
R/R BEAM
RF_RETRACT_LED 11
LF_EXTEND_LED LF_RETRACT_LED
RF_EXTEND_LED R/R COMMON
12
K2
BEAM_LED
K3 K4 K5 K6 R/R JACK
13
EXTEND
14
+POWER 30
87A
+POWER 30
87A
+POWER 30
87A
+POWER 30
87A
+POWER 30
87A EXTEND/RETRACT COMMON
15
FRAME BOX PCB-OUTRIGGER 87 87 87 87 87 RETRACT
CONNECTOR HARNESS J8
1N5406

1N5406

1N5406

1N5406

1N5406
D12

D13

D14

D15
J205 14PINTB_L J5 86 86 86 86 86

D16
85 85 85 85 85
F/LEFT BEAM A 1 1 1
B 2 2 2 J4 TB4
F/LEFT JACK VF4-15F11 VF4-15F11 VF4-15F11 VF4-15F11 VF4-15F11
F/RT BEAM C 3 3 3
1N4007 1N4007 1N4007 1N4007 1N4007 CABRLY2
1 1

F/RT JACK D 4 4 4 D22 D23 D24 ACCPWR1

2 2
D25 D26
R/LEFT BEAM E 5 5 5 D17 D18 D19 D20 D21 ACCPWR2
3 3
1N4007 1N4007 1N4007
R/LEFT JACK F 6 6 6 1N4007 EXTEND RELAY GND 1N4007 F/LEFT BEAM F/LEFT JACK F/RT BEAM F/RT JACK
D27 D29 GND D31 GND D33 GND D35 GND 18 04 80 7 18 04 91 7
R/RT BEAM G 7 7 7

R/RT JACK H 8 8 8 PC4/3-ST-7.62 PC4/3-G-7.62

1N4007 1N4007 1N4007 1N4007 1N4007 FRAME BOX PCB-CAB
EXTEND J 9 9 9
CONNECTOR A HARNESS
RETRACT K 10 10 10
J203
OUTRIGGERS STROBE L 11 11 11
1 A
SPARE WIRE BOOM1
OUTRIGGERS STROBE M 12 12 12
2 B12G
SPARE WIRE CABRLY2
OUTRIGGERS STROBE N 13 13 13
3 C
OUTRIGGERS STROBE P 14 14 14
4 D12G
SPARE WIRE FC1
HD34-18-14 TB5 14PINTB J3 TB3 5 E12G
SPARE WIRE FC2
HD34-18-14PN 152766 151616 1 1 6 F
FUEL RELAY
FUEL RELAY
2 2 7 G12G
O/R_STROBE
3 3 8 H
JACK_LED LR_EXTEND_LED
RR_EXTEND_LED
RR_RETRACT_LED SPARE WIRE CAB1
LR_RETRACT_LED 4 4 9 J
K7 K8 K9 K10 K11
O/R STROBE OUTRIGGER STROBE
5 5 10 K
ENGRLY2 SPARE WIRE ENGRLY2
6 6 11 L
+POWER 30
87A
+POWER 30
87A
+POWER 30
87A
+POWER 30
87A
+POWER 30
87A START SWITCH START SWITCH
7 7 12 M
87 87 87 87 87 F/LEFT BEAM
8 8 13 N
F/LEFT JACK
1N5406

1N5406

1N5406

1N5406
9 9 14 P

1N5406
F/RT BEAM
D37

D38

D39

D40
86 86 86 86 86

D41
10 10 15 R
85 85 85 85 85 F/RT JACK
11 11 16 S
R/LEFT BEAM
VF4-15F11 VF4-15F11 VF4-15F11 VF4-15F11 VF4-15F11 12 12 17 T
R/LEFT JACK
1N4007 1N4007 1N4007 1N4007 1N4007 13 13 18 U
D47 D48 D49 D50 D51 R/RT BEAM
14 14 19 V
D42 D43 D44 D45 D46 R/RT JACK
1N4007 1N4007 1N4007 1N4007 1N4007 15 15 20 W
EXTEND
RETRACT RELAY R/LEFT BEAM R/LEFT JACK R/RT BEAM R/RT JACK 16 16 21 X
D52 D54 D56 GND D58 GND D60 GND RETRACT
GND GND
1N4007 1N4007 1N4007 1N4007 1N4007 151636 152786 HD34-24-21SN
4933059-1
6-7
 October 1, 2000

EMERGENCY STOP LEDS

4933059-1

FUEL LED STOPPED

1N5406
K12
K13
GND GND K14 87A OK
87A 30 R1
+BATT 30 87
87A 87
IGNITION SWITCH 30
87
FRAME BOX PCB - ENGINE 86
86
CONNECTOR HARNESS 85
3A 86 85
GND
1 1 1 85
A 1
KEY SWITCH
2 2 2 IGNITION
B 2
PTO SWITCH
3 3 3
C 3 +POWER +POWER FUEL_RELAY
PTO LIGHT +
4 4 4
D 4
PTO LIGHT -
5 5 5
E 5
STARTER CONTACTOR FUEL SOLENOID RELAY
6 6 6
F 6 GND
FUEL SOLENOID GND
7 7 7
G 7 CABRLY2
SPARE WIRE CABRLY2 GND
8 8 8
H 8
SPARE WIRE ENGRLY1
J201 TB1 J1
GND
ENGRLY2
GND
CRANE POWER LED K16
R4 K17
87A
GND K15 +POWER 30
87A 87
RAW BATT +POWER 30
87A 87 SPARE ENGINE
1 1
F2 GND +BATT 30
1 +BATT 87 RELAY 86
2 2 START RELAY
2 86 85
3 3 CRANE POWER RELAY
3 86 START_SWITCH 85
4 4
4 MAIN 85
5 5 F3
5
6 6 +POWER
6
7 7
7
K18:B 8 8
C1 8 ACCESSORY 1
12AWG RED
C2 F4
TB2 J2
GND
ACCPWR1
100 AMP CONTACTOR
POWER K18:A
ACCESSORY 2 GND
DISTRIBUTION F5
BLOCK ACCPWR2
GND
PDB1
LOAD MONITOR
1 F6 FRAME BOX PCB - POWER
BATT+
2
BATT- CONNECTOR HARNESS
Manitowoc Boom Trucks

20A

SECTION 6 – ELECTRICAL
SPARE 18 04 84 9 18 04 95 9
F7 PC 4/7-G-7,62 PC 4/7-ST-7,62 J206
1 1 12AWG WHT 1
+POWER A 12VDC PWR
2 2 12AWG WHT 2
B 12VDC PWR
TO INTERNAL SWITCHES SPARE 3 3 12AWG WHT 3
C WYLIE PWR
F8 4 4 4
12AWG GRN D
TB8 WYLIE GROUND
5 5 12AWG GRN 5
1 LF-SW1 16GA 20A E DC GROUND
F/LEFT BEAM FASTON 6 6 6
2 LF-SW2 16GA 12AWG GRN F
F/LEFT COMMON FASTON DC GROUND
3 7 7 12AWG GRN 7
LF-SW3 16GA G DC GROUND
F/LEFT JACK FASTON 8
4 RF-SW1 16GA H
F/R BEAM FASTON J6 TB6
5 RF-SW2 16GA
F/R COMMON FASTON HD34-18-8SN
6 RF-SW3 16GA
F/R JACK FASTON GND
7 LR-SW1 16GA
R/LEFT BEAM FASTON
8 LR-SW2 16GA
R/LEFT COMMON FASTON
9 LR-SW3 16GA
R/LEFT JACK FASTON THIS GROUND MUST RUN SEPARATELY TO THIS TERMINAL STRIP
10 RR-SW1 16GA
R/R BEAM FASTON
11 RR-SW2 16GA
R/R COMMON FASTON
12 RR-SW3 16GA
R/R JACK FASTON
13 BEAM-SW1 16GA
EXTEND FASTON
14 BEAM-SW2 16GA
EXT/RET COMMON FASTON
15 BEAM-SW3 16GA
RETRACT FASTON
Figure 6-7. Ground Box Printed Circuit Board - Boom Control
6-8
7600006-030 Rev. 0

Figure 6-8. Cab Box Printed Circuit Board

PHOENIX PHOENIX
18 04 85 2 18 04 96 2

TO CRANE CAB

1 1 1
1 1 A ACESSORY 1+12V
2 2 2
2 2 B ACESSORY 2+12V
3 3 3
3 3 C ACESSORY 1 GROUND
4 4 4
4 4 D ACESSORY 2 GROUND
5 5 5
5 5 E SEAT FRAME GROUND
6 6 6
6 6 F WYLIE PWR 12VDC
7 7 7
7 7 G WYLIE PWR GROUND
8 8 8
8 8 H WYLIE OVLD OUTPUT

HD34-18-8SN

1
12 VDC PWR A 1 1 POWER TO ENABLE VALVES AND BOOM
2
12 VDC PWR B 2 2
3
WYLIE PWR C 3 3
4
WYLIE GROUND D 4 4
5
DC GROUND E 5 5
6 1 1
DC GROUND F 6 6 1 1 BOOM DN ENABLE SOL
7 2 2
DC GROUND G 7 7 2 2 GROUND
8 3 3
H 3 3 BOOM UP ENABLE SOL
4 4
4 4 GROUND
PC 4/7-ST-7,62 5 5
PC 4/7-G-7,62 87a 87a 5 5 TELLE OUT ENABLE SOL
HD34-18-8PN PHOENIX PHOENIX POWER 30 30 6 6
P/N 18 04 95 9 P/N 18 04 84 9
87 87 6 6 GROUND
7 7
7 7 HOIST UP ENABLE SOL
8 8
86 86 8 8 GROUND
9 9
85 85 9 9 A2B SWITCH
10 10
POWER POWER 10 10 PRESSURE OVLD SOL
11 11
11 11 REMOTE STOP SWITCH
12 12
12 12 SPARE BOOM HARNESS

SECTION 6 – ELECTRICAL
87a
Manitowoc Boom Trucks

POWER 30 13 13
87 POWER 13 13 +12VDC
14 14
14 14 GROUND
86
85
HD34-18-14SN

PC 4/5-ST-7,62 PC 4/5-G-7,62
PHOENIX PHOENIX
P/N 18 04 93 3 P/N 18 04 82 3
1 1
1 1
1 1 2 2
2 2
2 2 3 3
3 3
3 3 4 4 TO CRANE CAB
4 4
4 4 5 5
POWER 5 5
5 5 6 6
TO COLLECTOR RING POWER 6 6
7 7
POWER 7 7
8 8 1
8 8 A SPARE WIRE CABRLY 1
2
B OVLD LAMP
1 3
SPARE WIRE BOOM1 A C LAMP GROUND
2 4
SPARE WIRE CABRLY B D BOOM DOWN OVERRIDE
3 5
C E SWITCH COMMON +12V
4 6
ACESSORY 1+12V D F SWITCH COMMON +12V
5 7
ACESSORY 2+12V E G SWITCH COMMON +12V
6 8
FUEL RELAY F H ENGINE KILL
7 9
G J ENGINE KILL
8 10
SPARE WIRE CAB1 H K SPARE WIRE CAB1
9 11
OUTRIGGER STROBE J L OUTRIGGER STROBE
10 12
SPARE WIRE ENGRLY2 K M SPARE WIRE ENGINE RLY2
11 13
START SWITCH L N START SWITCH
12 14
F/LEFT BEAM M O F/LEFT BEAM SWITCH
13 15
F/LEFT JACK N P F/LEFT JACK SWITCH
14 16
F/RT BEAM P Q F/RIGHT BEAM SWITCH
15 17
F/RT JACK Q R F/RIGHT JACK SWITCH
16 18
R/LEFT BEAM R S R/LEFT BEAM SWITCH
17 19
R/LEFT JACK S T R/LEFT JACK SWITCH
18 20
R/RT BEAM T U R/RIGHT BEAM SWITCH
19 21
R/RT JACK U V R/RIGHT JACK SWITCH
20 22
EXTEND V W EXTEND SWITCH
21 23
RETRACT W X RETRACT SWITCH

HD34-24-21PN
6-9