Caterpillar 3512 руководство по эксплуатации

Detail Specifications:

749/749030-3512b.pdf file (03 Apr 2023)

Accompanying Data:

Caterpillar 3512B Engine PDF Operation And Maintenance Manual (Updated: Monday 3rd of April 2023 11:14:46 PM)

Rating: 4.7 (rated by 5 users)

Compatible devices: 3126B, 3208, 3500B, except 3600, 3116, C27, G3606, 3412E.

Recommended Documentation:

Text Version of Operation And Maintenance Manual

(Ocr-Read Summary of Contents, UPD: 03 April 2023)

  • 23, SEBU7348-05 75 Maintenance Section Engine Air Cleaner Element (Dual Element) — Clean/Replace Replace the dir ty paper air cleaner elements with clean air cleaner elements. Before installation, the air cleaner elements should be thoroughly checked for tears and/ or holes in the filter material. Inspect the gasket or the seal of the air cleaner element for damage. Maintain a supp…

  • 46, 98 SEBU7348-05 Maintenance Section Overhaul (Major) Forthemajorov erhaul, all of the bearings, seals, gaskets, and components that wear are disassembled. The parts are cleaned and inspected. If necessary, the parts are replaced. The crankshaft is measured for wear. The crankshaft may require regrinding. Alternatively, the crankshaft may be replaced wit h a Caterpillar replacement part. Your Ca…

  • 45, Caterpillar 3512B SEBU7348-05 97 Maintenance Section Overhaul (Major) Severe operati on can accelerate component wear. Engines that are operating under severe conditions may need more frequent maintenance intervals for the following reasons: • Maximum reliability • Retention of full service life Because of i ndividual applications, it is not possible to identify all of the factors which can cont…

  • 25, SEBU7348-05 77 Maintenance Section Engine Air Cleaner Element (Single Element) — Clean/Replace Do not use paint , a waterproof cover, or plastic as a protective covering for storage. An airflow restriction may result. To protect against dirt and damage, wrap the primary ai r cleaner elements in Volatile Corrosion Inhibited (VCI) paper. Place the pri mary air cleaner elem…

  • 53, Caterpillar 3512B SEBU7348-05 105 Maintenance Section Radiator — Clean • The service lif e of the engine can be extended without the risk of a major catastrophe due to engine failure. • Achieve the best cost/value relationship per hour of extended service life. Overhaul Inspection Refer to the Service Manual for the disassembly and assembly procedures that are necessary in order to …

  • 50, 102 SEBU7348-05 Maintenance Section Overhaul (Top End) Unit Injectors Replace the unit injectors. Consult your Caterpillar dealer about e xchanging the unit injectors. Your Caterpillar dealer can provide these services and components. The wear of unit injectors is affected by the following considerations: • Quality of the fuel • Quality of t he filtrati…

  • 40, 92 SEBU7348-05 Maintenance Section Hoses and Clamps — Inspect/Replace Contact with high pressure fuel may cause fluid penetration and burn hazards. High pressure fu- el spray may cause a fi re hazar d. Failur e to fol- low these inspection, maintenance a nd service in- structions may cause personal injury or death. NOTICE Do not bend or strike high pressure lines. Do not in-…

  • 14, 66 SEBU7348-05 Maintenance Section Cooling System Coolant (ELC) — Change 6. Flush the cooli ng system with clean water until the water that drains is clean. Close the cooling system drain valves (if equipped). Clean the drain plugs and inst all the drain plugs. Fill the Cooli ng System NOTICE Fill the cooling system no faster than 19 L (5 US gal) per minute t o…

  • 29, SEBU7348-05 81 Maintenance Section Engine Mounts — Check Inspect the hos eteeforcracks.Iftheteeis cracked, discard the old tee and obtain a new tee for installation. 5. Turn the breathers upside-down in order to inspect the condition of the breather elements. Clean the breather elements with clean, nonflammable solvent. If the breather elements remain cont aminated after the cleaning, disca…

  • 3, Caterpillar 3512B SEBU7348-05 55 Maintenance Section Maintenance Interval Schedule i041 45318 Maintenance Interval Schedule SMCS Code: 1000; 4450; 7500 Ensure that al l safety information, warnings, and instructions are read and understood before any operation or any maintenance procedures are performed. The user is responsible for the performance of all maintenanc e which includes the following items: performing …

  • 13, SEBU7348-05 65 Maintenance Section Cooling System Coolant (DEAC) — Change 3. Open the coolin g system drain valves (if equipped). If the cooling system is not equipped with drain valves, remove drain plugs (1) and (2). Allow the cool ant to drain. NOTICE Dispose of used engine coolant properly or recycle. Various methods have been proposed to reclaim used coola…

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  • 1 of 8 ELECTRIC ROTARY GEAR MOTOR SERIES AR2… INSTALLATION AND OPERATING INSTRUCTIONS 1. GENERAL FEATURES 2 2. TECHNICAL DATA 2 3. INSTALLATION 3 4. ELECTRIC CONNECTIONS 4 5. CALIBRATION 5 6. CONTROL STATION 7 7. MAINTENANCE AND CHECKS 8 8. REPLACEMENT 8 …

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  • SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCEIF 1767ACE-DG1 Variable Frequency Drive SystemInstallation & Maintenance InformationIF 1767 • 09/15 Copyright© 2015, Eaton’s Crouse-Hinds Division Page 1TABLE OF CONTENTS1. Safety Instructions 1.1 Application Page 2 1.2 Electrical S …

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  • enEnglishes frEspañol FrançaisenOperator’s ManualesManual del OperariofrManuel de l’opérateurForm No. 278776TRI —E 2009 Briggs & Stratton Corporation,Milwaukee, WI, USA. All rights reserved.Briggs & Stratton is a registered trademarkof Briggs & Stratton CorporationModel 440000IntektExtended Life SeriestModel 400000IntektExtended Life SeriestModel 490000Ex …

    440000 Professional Series 28

Additional Information:

Operating Impressions, Questions and Answers:
Источник

Table of Contents for Caterpillar 3512C:

  • SEBU8024-03 11 Safety Section Fire Prevention and Explosion Prevention Flammable fluid s that a re lea king o r spilled onto ho t surfaces or onto electrical components can cause a fire. Fire may cause personal injury and property damage. A flash fire may result if the covers for the engine crankcase are rem ov ed within fifteen minutes after an emergency shutdown. Determine whether the engine will be operated in an environment that allows combust ible gases to be drawn into the air inlet system. These gases could cause the engine to overspeed. Person

  • 12 SEBU8024-03 Safety Section Crushing Preve nt ion and Cutting Prevention Gases from a b a ttery can explode. Keep any open flames or sparks away from the top of a battery. Do not smoke in battery charging areas. Never check the battery charge by placing a metal object across the terminal posts. Use a voltmeter or ahydrometer. Improper jumper cable connections can cause an explosion that can result in injury. Refer to the Operation Section of this manual for specifi c instructions. Do not charge a frozen battery. This may cause an explosion. The batteries must

  • SEBU8024-03 August 2007 Operation and Maintenance Manual 3512C Oil Well Servicing Engine R1A1-Up (Engine) R3A1-Up (Engine)

  • SEBU8024-03 9 Safety Section General Hazard Informatio n When pressurized air and/or pressurized water is used for cleaning, wear protective clothing, protective shoes, and eye protection. Eye protection includes goggles or a protective face shield. The maximum air pressure for cleaning purposes must be below 205 kPa (30 psi) when the air nozzle is deadheaded. The maximum water pressure for cleaning purposes must be

  • 6 SEBU8024-03 Safety Section Safety Messages Safety Section i02307008 Safety Messages SMCS Code: 1000; 7405 There may be several specific safet y messages on your engine. The exact location and a description of the messages are reviewed in this sectio n. Please become familiar w ith all o f the messages. Ensure that all of the messages are legible. Clean the m essages or replace the mes sages if the words cann ot be read or if th e illustrations are not visible. Use a cloth, water, and soap for cleaning the messages. Do not use solvents, gasoline, or other hars

  • SAFETY.CAT.COM 3512C OIL WELL SERVICING ENGINE Engine Safety Excerpted from Operation & Maintenance Manual (SEBU8024-03-01) © 2007 Caterpillar All Rights Reserved

  • 4 SEBU8024-03 Foreword Foreword Literature Information This manual contains safety, operation instructions, lubrication and maintenance information. This manual should be stored in or near the engine area in a literature holder or literature storage area. Read, study and keep it with the literature and engine information. English is the prima r y language for all Ca terpillar publications . The English u sed fa cilita te s

  • SEBU8024-03 7 Safety Section Safety Message s Engine Lifting g00580494 Illustration 2 Location of the safety message for lifting the engine The safety message for lifting the engine is located on the valve covers. g00306083 Improper lift rigging can allow unit to tumble caus- ing injury and damage. Before lifting the engine, read this Operation and Maintenance Manual, “Engine Lifting” topic (Operation Section). If improper equipment is used to lift the engine, injury and dama

  • SEBU8024-03 13 Safety Section Mounting and Dismounting i01372247 Mounting and Dismounting SMCS Code: 1000; 4450; 7405 Inspect the st eps, th e handho lds, and the wo rk area before mounting the engine. Keep these items clean and keep these items in good repair. Mount the engine and dismount the engine only at locations that have steps and/or handholds. Do not climb on the engine, and do not jump off the engine. Face the engine in order to mo

  • 10 SEBU8024-03 Safety Section Burn Prevention • Comply with applicable rules and regulations for the work place. In the United States, use Occupational Safety and Health Administration (OSHA) requirements. These OSHA requirements can be found in “29 CFR 1910.1001”. • Obey environmental regulations for the disposal of asbestos. • Stay away from areas that might have asbestos particles in the air. Dispose of Waste Properly g00706404 Illustration 8 Improperly disposing of w

  • i01658146 Important Safety Information Most accidents that involve product operation, maintenance and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs. A person must be alert to potential hazards. This person should also have the necessary training, skills and tools to p erfo rm these fu n ctio n s properly. Improper operation, lubrication, maintenance or repair of this product can be dangerous and could

  • 14 SEBU8024-03 Safety Section Engine Stopping Use e th er in we ll ventilated areas. Use ether with care in order to avoid fires. Keep ether cylinders out of the reach of unauthorized persons. Store ether cylinders in authorized s torage areas only. Do not store ether cylinders in direct sunlight or at temperatures above 49 °C (120 °F). Discard the ether cylinders in a safe place. Do not puncture the ether cylinders. Do not burn the ether cylinders. i01964154 En

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3-1

Engine Tools

Table of Contents

Air Induction ………………………………………………………………………………………………………………………………………………. 3-3

Cooling System ………………………………………………………………………………………………………………………………………… 3-19

Crankshaft, Main Bearings and Flywheel ……………………………………………………………………………………………….. 3-44

Cylinder Block and Liners ……………………………………………………………………………………………………………………….. 3-77

Cylinder Head, Valves and Cam Followers …………………………………………………………………………………………….. 3-103

Electrical and Ignition Tools ………………………………………………………………………………………………………………….. 3-169

Lube System……………………………………………………………………………………………………………………………………………. 3-175

Engine Test Tools ……………………………………………………………………………………………………………………………………. 3-180

Fuel System Test Tools …………………………………………………………………………………………………………………………… 3-202

Fuel System Repair and Adjust ………………………………………………………………………………………………………………. 3-243

Pistons, Rings and Connecting Rods ……………………………………………………………………………………………………… 3-317

Camshaft and Timing Gear Tools ……………………………………………………………………………………………………………. 3-337

Starting Systems …………………………………………………………………………………………………………………………………….. 3-354

Engine Lifting and Positioning ……………………………………………………………………………………………………………….. 3-356

3600 Engine Tools …………………………………………………………………………………………………………………………………… 3-376

Engine Tools

Contents Summary of Caterpillar Engine Tools Cat Overhaul 3512

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General Information

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Illustration 1 g00525916

Instrument Panel For Generator Set Engines And Marine Engines.
(1) Electronic Instrument Panel. (2) Main Display Module. (3) Quad Gauge Electronic Module — STANDBY. (4) Pyrometer. (5) Ether Starting Aid Switch. (6) «SCROLL» Switch. (7) «CLEAR/MODE» switch. (8) «LH/RH» switch. (9) Gauge Cluster Module — PRIME. (10) Emergency Stop Push Button. (11) Instrument Panel Connector «A». (12) Instrument Panel Connector «B». (13) Alarm Silence Switch. (14) Alarm. (15) Gauge Cluster Module — PREMIUM. (16) Electronic Service Tool Connector. (17) Customer Connector «D». (18) Customer Connector «C». (19) Pyrometer Connector. (20) Engine Control Switch (ECS).

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Illustration 2 g00574173

Instrument Panel For Locomotive Engines.
(21) Electronic Instrument Panel. (22) Quad Gauge Cluster Module 3. (23) Main Display Module. (24) «SCROLL» switch. (25) «CLEAR MODE» switch. (26)» LH/RH SELECT» Switch. (27) Potentiometer (Dimmer). (28) Alarm Silence Switch. (29) Horn. (30) Gauge Cluster Module 1. (31) Gauge Cluster Module 2.

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Illustration 3 g00574183

Junction Box For Locomotive Engines.
(32) Emergency Stop Button

(33) Stop Button

(34) Overspeed Verify Switch

(35) Engine Connectors

(36) Customer Connector «G»

(37) Power Connector

(38) Service Connector

(39) Instrumentation Connector

The 3500B Electronic Panel is the control center for gathering information. The 3500B Electronic Panel gathers information from the Generator Set engine that is equipped with switchgear conversion and all other engine applications. The 3500B Electronic Panel contains the items that are found in the following list.

  • 3500B Instrument Modules
  • Emergency Stop Push Button
  • Normal Stop Push Button (Locomotives Engines)
  • Instrument Module Control Switches
  • Alarm
  • Alarm Silence Switch
  • Various Circuit Breakers
  • Relays and Wiring
  • Interface Connector For The Electronic Service Tool
  • Interface Connector For Customers
  • Engine Control Switch (ECS) (Not on Locomotive Engines)
  • Dimmer (Locomotive Engines only)

Configuration

There are two standard configurations that are used with the 3500B Instrument Console. The Standby Package Generator Set with switchgear conversion has two modules that are used with the standard configuration. The other Package Generator Sets with switchgear conversion and all other engine applications will have three standard modules. There is an option for adding a fourth module and a Pyrometer (4). The two modules that are included with every instrument box are the Main Display Module (2) and the Quad Gauge Electronic Module (3). The Main Display Module (2) controls all the instruments and the Quad Gauge Cluster (3) displays the following items.

  • Engine oil pressure
  • Engine coolant temperature
  • DC voltage of the system
  • Fuel pressure in the engine

Standby Package Generator Sets display the items that are listed above on the Quad Gauge Electronic Module. The following items are displayed on the Quad Gauge Electronic Module (9) for other applications.

  • Right-hand and left-hand exhaust temperature
  • Right-hand and left-hand air inlet restriction
  • Fuel filter restriction
  • Oil filter restriction

There is an option that allows the customer to add a Premium Gauge Cluster Module (15). The Premium Gauge Cluster Module (15) for the Generator Set applications displays the following items.

  • Inlet air pressure (boost)
  • Aftercooler coolant temperature
  • Inlet air temperature
  • Engine oil temperature

The Premium Gauge Cluster Module (15) for Marine applications displays the following items.

  • Inlet air pressure (boost)
  • Aftercooler coolant temperature
  • Marine gear oil temperature
  • Marine gear oil pressure

Engine Control Switch

The Engine Control Switch (ECS) (20) has four positions. The ECS is used to control the engine. The Instrument Panels for Locomotive Engines are not equipped with the Engine Control Switch.

  1. The OFF/RESET position removes power from the engine for an immediate engine shutdown. Fault indicators are reset.
  2. The AUTO position allows a remote start/stop switch to be used to power up the ECM from a remote location. See the NOTE that follows Step 4. Three modes are available from the remote switch.
    • STOP sleep mode (low power consumption).
    • COOLDOWN/STOP engine cooldown (if programmed to cooldown) — stop mode.
    • MAN/START cycle crank sequence — engine running mode.

    On Generator Set applications, the ECS must be in the AUTO position to use a Customer Communication Module (CCM). A Customer Communication Module (CCM) is used toremotely start the engine. Toremotely start the engine, the operator must have a personal computer (PC). The PC is required to have the software for the customer communication module (CCM). The PC may be directly connected to the customer communication module (CCM) or the PC may be equipped for remote communications with a modem.

  3. The MAN/START position begins the cycle crank sequence. The engine is allowed to continue running once the crank terminate speed is reached.
  4. If the engine is programmed for cooldown mode, the COOLDOWN/STOP position places the engine in cooldown mode. Fuel injection is then terminated to stop the engine.

Note: The customer uses connector «C» (18) to wire the remote start/stop switch into the system. This allows the customer to control the engine from a remote location. Customer connector «C» (18) and customer connector «D» (17) are used to wire the customer communication module (CCM) into the system.

Emergency Stop Push Button

The Emergency Stop Push Button (10) and (32) is used to quickly stop the engine during emergency situations. The emergency stop push button (10) and (32) removes power from the engine ECM and the Main Display Module (2) and (23). Also, the emergency stop push button activates the air shutoff. The air shutoffs may not be installed.

Note: The Emergency Stop Push button is NOT to be used for normal, non-emergency shutdowns.

Normal Stop Push Button

This button is on the junction box of Locomotive Engines. The button is used for normal stopping. When this button is pressed, fuel injection is disabled.

Starting Aid Switch

If the ether system is ordered with an engine package, the instrument panel will include the Starting Aid switch (5). The Starting Aid switch (5) is used to provide the method of manually injecting ether during engine start-up. This switch is normally in the AUTO position, which allows the electronic control module (ECM) to automatically control ether injection. If the operator holds the Starting Aid switch in the MANUAL position, the electronic control module (ECM) will signal ether injection. The injection will proceed according to the strategy that is explained in the Engine Operation and Maintenance Manual.

Control Switches For The Main Display Module

The electronic panel contains three switches that are used for controlling the Main Display Module (2).

  1. The «CLEAR/MODE» switch (7) or (25) is used to move between the available modes of operation. Also, the «CLEAR/MODE» switch is used to clear the information that is displayed on the Main Display Module (2) and (23). The Main Display Module (2) or (23) will cycle through the different modes of operation when the «CLEAR/MODE» Switch (7) or (25) is held down in the MODE position. When the desired mode is reached, release the «CLEAR/MODE» Switch (7) or (25). The Main Display Module (2) or (23) will remain in that mode of operation until the «CLEAR/MODE» Switch (7) or (25) is held down again. If the information that is being displayed by Main Display Module (2) or (23) is not needed, then the information should be removed from memory. The information can be cleared by holding the»CLEAR/MODE» Switch (7) and (25) up for approximately one second until the information disappears from Main Display Module (2) or (23).
  2. The «SCROLL» Switch (6) and (24) is used to scroll through the various parameters that are available in a single mode. The Main Display Module (2) and (23) will scroll through the parameter display information that is available in the selected mode. When the «SCROLL» switch (6) or (24) is held in the UP position, the Main Display Module will scroll. If the continuous display of a parameter is desired, hold the «SCROLL» switch (6) or (24) in the UP position, until the desired information is displayed. Next, release the «SCROLL» Switch (6) or (24) when the desired information is displayed. The parameter information will remain displayed until Main Display Module (2) or (23) receives another switch signal.
  3. «LH/RH» Switch (8) or (26) is used to display both the right-hand and left-hand parameter information on a single gauge. Right-hand values and left-hand values for the exhaust temperature measurements and inlet air restriction measurements can be displayed on the Electronic Instrument boxes that are equipped with a second Quad Gauge Module (9) or (31). When the Quad Gauge Module is displaying the parameter information for the exhaust temperature or the inlet air restriction, the «LH/RH» switch (8) or (26) can be toggled.

Alarm

The Alarm is activated by the Main Display Module. The Alarm is turned ON when there is a parameter that is out of range. The Alarm is also turned ON for active diagnostic faults.

Alarm Silence Switch

Alarm Silence Switch (13) or (28) is a push button that allows the operator to turn off Alarm (14) or (29) once the alarm has sounded. Activating the switch will silence the alarm for five minutes. After the five minute period, if the condition that initiated the alarm has not been corrected, the Alarm (14) or (29) will sound again.

Locomotive Engine Connectors

The junction box can be connected directly to the engine wiring harness that is located next to the engine ECM. The junction box may be installed remotely from the engine. The Locomotive OEM connects the interconnect wiring harness from the engine wiring harness to the engine connectors on the junction box.

Customer Connector «C»

Customer Connector «C» (40-pin connector) (18) provides access to all customer attachments and system enhancements. Attachments that interface through this connector for Generator Set applications include the following items.

  • Speed adjusts potentiometer (when the Woodward Loadshare Module is not used)
  • Fuel level switch
  • Battery charger fault switch
  • Low coolant level switch
  • Customer remote start/stop switch
  • Customer remote emergency stop switch
  • Inlet air temperature sender
  • Engine oil temperature sender

Attachments that interface through this connector for marine applications include the following items.

  • Fuel level switch
  • Marine gear oil pressure
  • Marine gear oil temperature
  • Low coolant level switch
  • Customer remote start/stop switch
  • Customer remote emergency stop switch

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Table 1

Generator Set Applications — Customer Connector «C» 
Pin Number  Function 
1 — 12  Unassigned 
13  Shutdown Notify Relay Common 
14  Generator Set Online 
15  Shutdown Notify Relay Normally Closed 
16  Battery Charger Fault 
17  Shutdown Notify Relay Normally Open 
18  Fuel Level Switch 
19 — 21  Digital Return 
22 — 24  Unassigned 
25  Sensor Supply Voltage (Coolant Level) 
26  Unassigned 
27  Sender (Air Inlet Temperature) 
28  Sensor Signal (Coolant Level) 
29 — 32  Remote Start/Stop Switch 
33 — 34  Remote Shutdown Switch 
35  Engine Oil Temperature Sensor 
36  Engine Speed Signal From Woodward Loadshare Module Pin 19 
37 — 39  Speed Adjust Potentiometer Connections To Speed Control 
40  Optional DeNox System Power 

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Table 2

Marine Applications — Customer Connector «C» 
Pin Number  Function 
1 — 2  Throttle Synchronization Switch 
3  Primary Throttle Position Sensor Signal 
4  Backup Throttle Position Sensor Signal 
5  Secondary ECM Ready Lamp Signal 
6  Secondary ECM Active Lamp Signal 
7  Connect to other engine Customer Connector «C» Pin 8 
8  Connect to other engine Customer Connector «C» Pin 7 
9  Connect to other engine Customer Connector «C» Pin 10 
10  Connect to other engine Customer Connector «C» Pin 10 
11  CAT Data Link (−) 
12  CAT Data Link (+) 
13  Shutdown Notify Relay Common 
14  Unassigned 
15  Shutdown Notify Relay Normally Closed 
16  Unassigned 
17  Shutdown Notify Relay Normally Open 
18  Fuel Level Switch 
19 — 21  Digital Return 
22  Unassigned 
23  Sensor Supply Voltage (Transmission Oil Pressure) 
24  Sensor Voltage (Transmission Oil Temperature) 
25  Sensor Supply Voltage (Coolant Level) 
26  Sensor Signal (Transmission Oil Pressure) 
27  Sensor Signal (Transmission Oil Temperature) 
28  Sensor Signal (Coolant Level) 
29 — 32  Remote Starting Switch 
33 — 34  Remote Shutdown Switch 
35 — 40  Unassigned 

Customer Connector «D»

There are two customer connectors that are on the bottom of the electronic instrument panel. Customer Connector «D» provides access to the battery ground. Customer Connector «D» (17) is a 24-pin connector. For marine applications, this connector also provides +Battery and a «−Battery» access. The access is for the throttle synchronization switch, the throttle position sensor, the secondary electronic control module (ECM), ready lamps, and active lamps. On single marine engine applications, a backup throttle position sensor can also be powered from this connector.

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Table 3

Generator Set Applications — Customer Connector «D» 
Pin Number  Function  Type 
1 — 16  Unassigned  Unassigned 
17 — 20  Ground  −Battery 
21 — 24  Unassigned  Unassigned 

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Table 4

Marine Applications — Customer Connector «D» 
Pin Number  Function  Type 
1 — 2  Throttle Synchronization Switch  Switch +Battery 
3  Primary Throttle Position Sensor  Switched +Battery 
4  Backup Throttle Position Sensor  Switched +Battery 
5  Secondary ECM Ready Lamp  Switched +Battery 
6  Secondary ECM Ready Lamp  Switched +Battery 
7 — 12  Unassigned  Unswitched +Battery 
13 — 14  Throttle Synchronization Switch  −Battery 
15  Primary Throttle Position Sensor  −Battery 
16  Backup Throttle Position Sensor  −Battery 
17  Fuel Level Switch  −Battery 
18  Transmission Oil Pressure Switch  −Battery 
19  Transmission Oil Temperature Sensor  −Battery 
20  Coolant Level Sensor  −Battery 
21 — 24  Unassigned  −Battery 

Locomotive Power Connector «F»

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NOTICE

The use of a power supply that is not isolated may result in failure of the electronic control module (ECM).

The ECM must be powered by isolated power only.

Note: The Locomotive OEM is responsive for ensuring that the isolated power supply is provided.

Connector «F» (37) provides 24 DCV to the junction box. Power is provided to the ECM, the service connector, and the Caterpillar Monitoring System. This connector is also for variable voltage that may be needed by systems that support the engine operation. Examples of the systems for support include ether, prelube, and relays for starting the engine.

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Table 5

Locomotive Applications — Customer Connector «F» 
Pin Number  Function  Type 
1  Unassigned   
2  Power Minus  +Battery 
3  Battery Positive  +Battery 
4  Unassigned   
5  Battery Negative  −Battery 
6  Power Plus  +Battery 

Customer Connector «G»

Connector «G» (36) is the primary interface between the locomotive control and the engine. Connector «G» provides the interface for the items that are listed below.

  • Shut down notify relay
  • Start enable relay
  • General alarm relay
  • Throttle
  • Fuel position multiplier
  • Feedback for the load
  • Serial data links
  • A speed signal that is independent of the engine ECM
  • Communication with the engine ECM for the remote emergency shutdown and normal engine shutdown
  • Engine protection override switch

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Table 6

Locomotive Applications — Customer Connector «G» 
Pin Number  Function 
1  Start Enable 
2  Start Enable 
3  Emergency Shutdown C 
4  Engine Shutdown 
5  Start Enable 
6  Engine Shutdown 
7  Emergency Shutdown D 
8  General Alarm 
9  Global CAT Link + (not used) 
10  Shield 
11  CAN − 
12  CAN + 
13  General Alarm 
14  Local CAT Data Link (−) 
15  Shutdown Notify (COM) 
16  Shutdown Notify (NC) 
17  Shutdown Notify (NO) 
18  General Alarm (COM) 
19  Load Feedback 
20 — 23  Not Used 
24  Torque Limit 
25  Global CAT Data Link (−) 
26  Not Used 
27  Local CAT Data Link (+) 
28  Not Used 
29  Throttle 
30  Magnetic Pickup (+) 
31  Magnetic Pickup (−) 
32  Shield 
33 — 36  Not Used 
37  Digital Reference 
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