7J1780 CARTRIDGE ASSEM. Caterpillar parts
977K
Rating:
Alternative (cross code) number:
CA7J1780
7J-1780
7J1780
CA7J1780
7J-1780
7J1780
Weight: 13 pounds 6 kg.
TRACK LOADER,
You can buy:
US$399.59
28 May 2025
FridayParts
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Hydraulic Pump Cartridge 7J-1780 Fit Intended For Loader 977K 977L
Generic Machinery Parts || Heavy Equipment Parts || Spare Parts || Final Drives
Generic Machinery Parts || Heavy Equipment Parts || Spare Parts || Final Drives
HpaErtsP Offroad Equipment Parts 7J1780 7J-1780 50 Gallon Hydarulic Vane Pump Cartridge Kit for Caterpillar CAT Excavator(7J1780)
HpaErtsP This Is An Aftermarket Part Made To Replace 7J1780 7J-1780 Its OEM Counterpart machinery. || Durable Construction: Built to withstand heavy-duty use and harsh environments. || Precise Engineering: Designed to meet for Caterpillar's strict specifications for optimal performance. || Easy Installation: Direct replacement for worn or damaged pump cartridges (installation guide included). || Warranty: Backed by manufacturer's warranty for added peace of mind (warranty details in package).
HpaErtsP This Is An Aftermarket Part Made To Replace 7J1780 7J-1780 Its OEM Counterpart machinery. || Durable Construction: Built to withstand heavy-duty use and harsh environments. || Precise Engineering: Designed to meet for Caterpillar's strict specifications for optimal performance. || Easy Installation: Direct replacement for worn or damaged pump cartridges (installation guide included). || Warranty: Backed by manufacturer's warranty for added peace of mind (warranty details in package).
CARTEX Hydraulic Pump Cartridge 7J-1780 for FITS Caterpillar FITS CAT Loader 977K 977L
CARTEX Whether you're a professional mechanic or a DIY enthusiast,We've got you covered with a wide range of parts that meet the highest standards of quality and performance. || Order your High Quality Part with peace of mind, knowing we prioritize your satisfaction. Quality Parts, Superior Performance - it's not just a promise, it's our standard || QUESTIONS? : We at CARTEX - High Quality Parts USA has more than 40 years of experience in industry and has in-house technicians, If you are not sure if this part fits your machine or tractor, just send us an email before you make the purchase and our in house technicians will revert back to you, right away.
CARTEX Whether you're a professional mechanic or a DIY enthusiast,We've got you covered with a wide range of parts that meet the highest standards of quality and performance. || Order your High Quality Part with peace of mind, knowing we prioritize your satisfaction. Quality Parts, Superior Performance - it's not just a promise, it's our standard || QUESTIONS? : We at CARTEX - High Quality Parts USA has more than 40 years of experience in industry and has in-house technicians, If you are not sure if this part fits your machine or tractor, just send us an email before you make the purchase and our in house technicians will revert back to you, right away.
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Compatible equipment models: 7J1780:
Information:
Use this procedure to troubleshoot an unexpected engine shutdown. Also, use this procedure if one of the following event codes is active or logged.
Table 1
J1939 Code and Description Comments
3607-2
Engine Emergency Shutdown Indication : Erratic, Intermittent, or Incorrect There are two switch inputs to the Electronic Control Module (ECM) from the E-stop switch.
The code will be set if both inputs are not grounded simultaneously or not open circuit simultaneously.
The code is logged.
3607-31
Engine Emergency Shutdown Indication An "Emergency Stop" button is pressed.
The shutdown output is activated. The ECM de-energizes the gas shutoff valve. The ECM terminates the ignition.
The code is logged.
5272-31
Unexpected Engine Shutdown The engine is in the run mode and the engine speed drops below 100 rpm.
The code is logged Probable Causes
Codes
Operator
Fuel system
Mechanical failure
SwitchesRecommended Actions
Unburned gas in the air inlet and exhaust system may ignite when the engine is started. Personal injury and/or property damage may result.Before starting an engine that may contain unburned gas, purge the unburned gas from the air inlet and exhaust system. Refer to the topic on purging unburned gas in the "Starting the Engine" section.
Table 2
Troubleshooting Test Steps Values Results
1. Check for Codes
A. Connect Cat® Electronic Technician (ET) to the service tool connector.
B. Look for active codes that are associated with the system for the event code.
Codes
Result: An associated code is active.
Repair: Troubleshoot any associated codes before continuing with this test.
Result: A 3607-31 code is active or logged.
Proceed to Test Step 5.
Result: A 3607-2 code is active or logged.
Proceed to Test Step 6.
Result: A 5272-31 code is active or logged.
Proceed to Test Step 2.
2. Interview the Operator
A. Interview the operator and determine the reason for the shutdown.
Operator
Result: The shutdown was not intentional.
Proceed to Test Step 3.
Result: The shutdown was intentional.
Repair: Ensure that the reason for the shutdown has been corrected. Reset the control system. Resume normal operation.
If the problem is not resolved, proceed to Test Step 3.
Gaseous fuel is present. Personal Injury or Death can result from an open flame or spark igniting the gaseous fuel causing an explosion and/or fire. Always use a gas detector to determine the presence of gaseous fuel when maintaining and servicing. Contact your local gas provider immediately for assistance in the event of a leak.
Table 3
Troubleshooting Test Steps Values Results
3. Check the Fuel System
A. Obtain a fuel analysis.
Note: If the quality of the gas is inconsistent, obtain several analyses over a period of time.
B. Enter the data into Caterpillar Software, LERW4485, "Gas Engine Rating Pro (GERP)".
C. Verify that the fuel supply pressure is adequate and stable.
D. Verify that the size of the fuel line is sufficient.
E. Inspect the fuel system for leaks.
Note: Always use a gas detector to determine the presence of gaseous fuel. Contact your local provider of gas immediately for assistance.
F. Inspect the following fuel system components:
- Fuel filter
- Gas pressure regulator
- Gas shutoff valve
- Gas shutoff valve solenoid
Fuel System
Result: The fuel system is OK.
Proceed to Test Step 4.
Result: The fuel system is NOT OK.
Repair: Repair or replace damaged fuel system components.
Use Cat ET to program
Table 1
J1939 Code and Description Comments
3607-2
Engine Emergency Shutdown Indication : Erratic, Intermittent, or Incorrect There are two switch inputs to the Electronic Control Module (ECM) from the E-stop switch.
The code will be set if both inputs are not grounded simultaneously or not open circuit simultaneously.
The code is logged.
3607-31
Engine Emergency Shutdown Indication An "Emergency Stop" button is pressed.
The shutdown output is activated. The ECM de-energizes the gas shutoff valve. The ECM terminates the ignition.
The code is logged.
5272-31
Unexpected Engine Shutdown The engine is in the run mode and the engine speed drops below 100 rpm.
The code is logged Probable Causes
Codes
Operator
Fuel system
Mechanical failure
SwitchesRecommended Actions
Unburned gas in the air inlet and exhaust system may ignite when the engine is started. Personal injury and/or property damage may result.Before starting an engine that may contain unburned gas, purge the unburned gas from the air inlet and exhaust system. Refer to the topic on purging unburned gas in the "Starting the Engine" section.
Table 2
Troubleshooting Test Steps Values Results
1. Check for Codes
A. Connect Cat® Electronic Technician (ET) to the service tool connector.
B. Look for active codes that are associated with the system for the event code.
Codes
Result: An associated code is active.
Repair: Troubleshoot any associated codes before continuing with this test.
Result: A 3607-31 code is active or logged.
Proceed to Test Step 5.
Result: A 3607-2 code is active or logged.
Proceed to Test Step 6.
Result: A 5272-31 code is active or logged.
Proceed to Test Step 2.
2. Interview the Operator
A. Interview the operator and determine the reason for the shutdown.
Operator
Result: The shutdown was not intentional.
Proceed to Test Step 3.
Result: The shutdown was intentional.
Repair: Ensure that the reason for the shutdown has been corrected. Reset the control system. Resume normal operation.
If the problem is not resolved, proceed to Test Step 3.
Gaseous fuel is present. Personal Injury or Death can result from an open flame or spark igniting the gaseous fuel causing an explosion and/or fire. Always use a gas detector to determine the presence of gaseous fuel when maintaining and servicing. Contact your local gas provider immediately for assistance in the event of a leak.
Table 3
Troubleshooting Test Steps Values Results
3. Check the Fuel System
A. Obtain a fuel analysis.
Note: If the quality of the gas is inconsistent, obtain several analyses over a period of time.
B. Enter the data into Caterpillar Software, LERW4485, "Gas Engine Rating Pro (GERP)".
C. Verify that the fuel supply pressure is adequate and stable.
D. Verify that the size of the fuel line is sufficient.
E. Inspect the fuel system for leaks.
Note: Always use a gas detector to determine the presence of gaseous fuel. Contact your local provider of gas immediately for assistance.
F. Inspect the following fuel system components:
- Fuel filter
- Gas pressure regulator
- Gas shutoff valve
- Gas shutoff valve solenoid
Fuel System
Result: The fuel system is OK.
Proceed to Test Step 4.
Result: The fuel system is NOT OK.
Repair: Repair or replace damaged fuel system components.
Use Cat ET to program
Caterpillar parts catalog:
Parts cartridge Caterpillar catalog:
621B, 824B, 834, 977K, 977L, 980B, 988, D44B, D550B
8S4579
CARTRIDGE ASSEM.
1674, 966C, 977K, 980
1674, 966C, 977K, 980
1674, 966C, 977K, 980, D6C
977K, D5, D6C
5S5200
CARTRIDGE ASSEM.
955K, 977H, 977K
955K, 977H, 977K
621B, 824, 824B, 824S, 834, 977K, 977L, 980, 980B, 988
163, 172, 173B, 183B, 650B, 950
183B, 631C, 633C
183B, 621, 631C, 983, 992
621B, 824, 824B, 824S, 834, 977K, 977L, 980, 980B, 988
173B, 641, 641B
16, 173B, 183B, 641, 641B
173B, 183B, 528, 613, 613B, 621, 920, 930, D7G
183B, 613, 621, 920, 930