3500B ENGINE FOR MARINE AUXILIARY POWER ELECTRICAL SYSTEM

Wire Gauge Pin # Socket #
14
16-18 8T-8729
9W-0852 9W-0844
8T-8730
4-Pin DT Plug
3E-3376 Receptacle As.
3E-3377 Wedge
3E-3374 Wedge
102-8814 Seal
3E-3373 Plug As.
Wire Gauge Pin # Socket #
14
16-18 8T-8729
9W-0852 9W-0844
8T-8730
3E-8558 Bolt
3E-4367 Ring
9X-3265 Seals
9X-0145 Receptacle As.
7X-6222 Connector As.
24 23 22 21 20 19
DEUTSCH IPD
DRC16-24SA
USA
3
9
15
21
16
22
10
4 6
12
24
1813
7
19
1
18
17
16
15
19
1
2
3
20
9
10
23
22
21
4
5
6
7
8
11
12
13
14
25
24
18
17
16
15
19
1
2
3
20
9
10
23
22
21
4
5
6
7
8
11
12
13
14
25
24
Pin # Socket #
16-18
25-Pin CE Plug
4-6
10
12-14
8N-1548
8N-1540
8N-1542
9X-6856
8N-1538
8N-1547
8N-1543
8N-1541
9X-6857
8N-1539
8N-1521 Endbell As.
Wire Gauge Pin # Socket #
14
16-18 8T-8729
9W-0852 9W-0844
8T-8730
3E-4367 Ring
3E-8557 Bolt
8T-9834 Connector As.
9X-3132 Seals
9X-1343 Receptacle As.
40-Pin DRC Connector
DEUTSCH IPD
DRC16-40S
40 39 38 37 36 35 34 33 32 31
10
20
40
3026
36
16
65
15
25
35
21
11
31
1
24-Pin DRC Connector
Wire Gauge
3T-3044 or
8N-1518 Plug As.
3T-3043 or
8N-1517 Receptacle As.
102-8804 Receptacle Kit 102-8809 Plug Kit
10
40
36
6
5
3531
1
24
6
22
4
21
3
1
19
D86820
RENR1245-02
July 1997
3500B Engine For Marine Auxiliary
Power Electrical System
Serial #:
3DM86-UP
8EM249-UP
9AN111-UP
Serial #:
3TS1-UP
3WS1-UP
3XS1-UP
Serial #:
1PW1-UP
2FW1-UP
3DW1-UP
40-Pin Deutsch Connector
110-6848 Plug As.
or
110-6847 Plug As.
(Service Replacement)
110-6844 Seal
110-6847 Plug As.
110-6848 Plug As.
or
Wire Gauge Pin # Socket #
14
16-18 8T-8729
9W-0852 9W-0844
8T-8730
Wire Gauge Pin # Socket #
14-18 7N-77797N-7780
7N-9737 Plug
7N-9738 Receptacle
1
2
Pin # Socket #
14
16-18 8T-8729
9W-0852 9W-0844
8T-8730
16-18
Notes
14-18
4-6
10
12-14
DT, DRC, HD, and Deutsch connectors.
DT, DRC, HD, and Deutsch connectors.
Surseal connectors only.
25-pin CE connectors only.
25-pin CE connectors only.
25-pin CE connectors only.
25-pin CE connectors only.
7N-7780
8N-1548
8N-1542
8N-1540
9X-6856
8N-1538
7N-7779
8N-1547
8N-1543
8N-1541
9X-6857
8N-1539
Wire Gauge Pin # Socket #
14
16-18 8T-8729
9W-0852 9W-0844
8T-8730
9-Pin HD10 Receptacle
8T-8736 Receptacle
A
B
C
D
E
F
G
H
J
Wire Gauge
Wire Gauge Pin # Socket #
14
16-18 8T-8729
9W-0852 9W-0844
8T-8730
3-Pin DT Plug
3E-3307 Receptacle As.
3E-3371 Wedge
3E-3368 Wedge
102-8813 Seal
104-2921 Plug As.
Wire Gauge Pin # Socket #
14
16-18 8T-8729
9W-0852 9W-0844
8T-8730
2-Pin DT Plug
3E-3362 Wedge
102-8812 Seal
3E-3365 Wedge
3E-3364 Plug As.
3E-3361 Plug As.
102-8803 Receptacle Kit
102-8802 Receptacle Kit
102-8808 Plug Kit
102-8807 Plug Kit
2-Pin Sure-Seal Plug
D86819
AIR
CLEANER
AIR
CLEANER
19 18 15 16 14 9
11
10
25 21
17
6
55
3
26 128 32
2
12
31
4
27
23 23a22
8
2021a
Component Locations
Left Side View
Right Side View
D86935
Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Alarm F-14 1 Sensor - Engine Coolant Temp E-4 14
Alternator D-8 2 Sensor - Engine Oil Press (Filtered) E-4 15
Assembly - Relay Board F-2 note 4 Sensor - Engine Oil Press (Unfiltered) E-3 16
Assembly - Relay Board H-2 note 4 Sensor - Engine Speed C-4 7
Batteries F-6 note 1 Sensor - Engine Speed Timing C-3 17
Breaker - Alternator F-11 1 Sensor - Fuel Filter Press (Filtered) E-3 18
Breaker - Battery F-11 1 Sensor - Fuel Filter Press (Unfiltered) E-3 19
Breaker - Control Switch C-12 1 Sensor - L. Turbo Exhaust Temp C-3 20
Breaker - EMS II D-14 1 Sensor - L. Turbo Inlet Press (note 3) E-4 21,21a
Breaker - Engine Control C-14 1 Sensor - R. Turbo Exhaust Temp C-3 22
Breaker - Mag Relay G-12 1 Sensor - R. Turbo Inlet Press (note 3) E-4 23,23a
Breaker - Main Crank E-Stop G-11 1 Sensor - Turbo Outlet Press E-4 24
Breaker - PRCM I-12 1 Solenoid - Air Shut-off (Left Side) D-6 25
Breaker - Relay F-12 1 Solenoid - Air Shut-off (Right Side) E-6 26
Control - Engine A-6 3 Solenoid - Air Start (if equipped) E-7 27
Control - Speed E-13 1 Solenoid - Cylinder Head (note 2) A-2,C-2 28
Gauge - Cluster #1 I-14 1 Switch - Alarm Silence G-14 1
Gauge - Cluster #2 I-13 1 Switch - Charger Fault H-7 note 1
Gauge - Cluster #3 I-13 1 Switch - Control D-13 1
Module - Customer Communication H-9 note 4 Switch - Customer Shut-down G-7 note 1
Module - Loadshare I-8 1 Switch - Disconnect F-6 note 1
Module - Prog Relay Control H-4 note 4 Switch - E-Stop D-13 1
Module - Relay Driver G-1 note 4 Switch - Electronic Speed E-14 1
Module - Relay Driver I-1 note 4 Switch - Fuel Level H-7 note 1
Monitor - EMS II G-15 1 Switch - LH/RH F-14 1
Motor - Prelube D-5 4 Switch - Low Idle F-12 1
Motor - Starter (1/2 Group) E-8 5 Switch - Manual Crank F-13 1
Motor - Starter (1/2 Group) E-8 6 Switch - Mode/Clear G-14 1
Potentiometer - Speed Adjustment G-9 note 1 Switch - Overspeed Verify C-13 1
Pyrometer F-2 1 Switch - Prelube Press B-4 31
Relay - Air Shut-off LH F-13 1 Switch - Remote Start/Stop G-7 note 1
Relay - Air Shut-off RH F-13 1 Switch - Service G-14 1
Relay - EMS II D-14 1 Terminal Block (TB-1) G-11 1
Relay - Engine Control C-14 1 Terminal Block (TB-2) D-11 1
Relay - Mag #1 F-13 1 Terminal Block (TB-3) C-14 1
Relay - Mag #2 F-13 1 Terminal Block (TB-4) F-12 1
Relay - PRCM I-12 1 Terminal Block (TB-5) H-14 1
Relay - Prelube (Master) G-13 1 Terminal Block (TB-6) H-14 1
Relay - Prelube (Slave) G-13 1 Terminal Block (TB-7) H-14 1
Relay - Shut-down Notify H-11 1 Terminal Block (TB-8) H-14 1
Sender - Air Inlet Temp F-6 9 Terminal Block (TB-10) D-10 1
Sender - Engine Oil Temp F-7 8 Terminal Block (TB-11) D-10 1
Sensor - Aftercooler Temp E-4 10 Terminal Block (TB-12) H-11 1
Sensor - Atmospheric Press E-4 11 Thermocouple (note 2) D-1,F-1 32
Sensor - Crankcase Press E-3 12 Timer - Air Shut-off E-14 1
Sensor - Engine Coolant Level G-7 note 1
Note 1: Customer supplied component.
Note 2: One located at each cylinder.
Note 3: Locations marked with an “a” indicate the sensor location when the engine is equipped with an air shut-off.
Note 4: Remote mounted.
3
11
1
1
17
19
21
23
24
7
Front View
Rear View
T
Normally open switch that will close with an increase of a specific condition (temp-press-etc.).
Normally open switch that is closed due to an applied condition, and will open again with a
specific decrease in that condition.
Normally closed switch that will open with an increase of a specific condition.
Normally closed switch that is open due to an applied condition, and will close again
with a specific decrease in that condition.
The circle indicates that the component has screw terminals and a wire can be disconnected
from it.
No circle indicates that the wire cannot be disconnected from the component.
This indicates that the component has a wire connected to it that is connected to ground.
This indicates that the component does not have a wire connected to ground. It is grounded
by being fastened to the machine.
Electrical Schematic Symbols And Definitions
Pressure
Symbol
Temperature
Symbol
Level
Symbol
Flow
Symbol
A AA
2
A AA
1
2
325-PK-14
C
A
325-PK-14
200-BK-14
T
FUSE - A component in an electrical circuit that will open the circuit if too much current flows
through it.
REED SWITCH - A switch whose contacts are controlled by a magnet. A magnet closes the
contacts of a normally open reed switch; it opens the contacts of a normally closed reed switch.
SENDER - A component that is used with a temperature or pressure gauge. The sender
measures the temperature or pressure. Its resistance changes to give an indication to the
gauge of the temperature or pressure.
RELAY (Magnetic Switch) - A relay is an electrical component that is activated by electricity.
It has a coil that makes an electromagnet when current flows through it. The electromagnet
can open or close the switch part of the relay.
CIRCUIT BREAKER (C/B) - A component in an electrical circuit that will open the circuit if too
much current flows through it. This does not destroy the circuit breaker and it can be reset to
become part of the circuit again.
SOLENOID - A solenoid is an electrical component that is activated by electricity. It has a coil
that makes an electromagnet when current flows through it. The electromagnet can open or
close a valve or move a piece of metal that can do work.
Harness And Wire Electrical Schematic Symbols
Socket
Pin
Pin or Socket
Number
Wire, Cable, or Harness
Assembly Identification
Single Wire
Connector
Circuit Number
Identification
Wire
Gauge
Wire
Color
Plug
Receptacle
9X-1123
Component
Part Number
Electrical Schematic Symbols And Definitions
1
1
1
2
2
Typical representation of a
Sure-Seal connector. The
plugand receptacle contain
both pins and sockets.
Typical representation of a
Deutsch connector. The
plug contains all sockets
and the receptacle contains
all pins.
MAGNETIC LATCH SOLENOID - A magnetic latch solenoid is an electrical component that is
activated by electricity and held latch by a permanent magnet. It has two coils (latch and unlatch)
that make electromagnet when current flows through them. It also has an internal switch that places
the latch coil circuit open at the time the coil latches.
©
1997 Caterpillar
All Rights Reserved
Printed in U.S.A.