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Kobelco 7080 Crawler Crane Troubleshooting Guide

Apr 01,2025

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When your Kobelco 7080 crawler crane experiences a problem, quick and effective troubleshooting can minimize downtime and prevent further damage. Knowing common problems and the steps required to solve them can keep your equipment performing at peak performance.

Common Problems and Troubleshooting Steps:

1. Engine Starting Problems: The engine will not start or takes a long time to start.

Possible Causes:

① Low battery voltage.

② Fuel system problems.

③ Faulty starter motor.

Solution Steps:

① Check the battery: Make sure the battery voltage is within the recommended range (usually 12-24V). Recharge or replace the battery if necessary.

② Check the fuel system: Check for a clogged fuel filter or air in the fuel line. Clean or replace the fuel filter as needed, and bleed air from the system.

③ Test the starter motor: If the battery and fuel system are functioning properly, but the engine still will not start, check the starter motor for wear or damage and replace it if necessary.

2. Hydraulic System Problems: Insufficient hydraulic power or jerky movement.

Possible Causes:

① Low hydraulic oil level.

② Contaminated hydraulic oil.

③ Worn hydraulic pump or valves.

Solution Steps:

① Check oil level: Low hydraulic oil level can cause performance issues. Add oil to the recommended level and check for leaks.

② Check hydraulic oil condition: Dirty or contaminated fluid can affect the efficiency of the hydraulic system. If the fluid is thick, discolored, or contaminated, replace and clean the system.

③ Check pumps and valves: If the fluid is clean and the level is correct, but the problem persists, check the hydraulic pump and valves for wear or damage. Replace any faulty parts to restore smooth operation.

3. Track drive problem: The track moves unevenly or fails to move.

Possible Causes:

① Damaged track links.

② Worn sprockets.

③ Hydraulic drive problem.

Solution Steps:

① Check track links: Check for any visible damage or excessive wear. Replace or adjust if any links are damaged or the track is loose.

② Check sprockets: Worn sprockets can cause irregular movement. Check them for wear and replace if necessary.

③ Check the hydraulic drive system: If the tracks are in good condition and the sprockets are functioning properly, check the hydraulic drive system for malfunctions. Repair or replace damaged hydraulic components.

4. Overheating issues: The engine or hydraulic system is overheating.

Possible causes:

① Clogged radiator or cooling system.

② Low coolant level.

③ Faulty cooling fan.

Solution steps:

① Clean the radiator: Dirt, dust, and debris can clog the radiator, preventing proper airflow. Clean the radiator fins and check the cooling system for blockages.

② Check the coolant level: Low coolant level can cause overheating. Refill the system with the correct type of coolant and check for leaks.

③ Check the cooling fan: A faulty cooling fan can prevent the engine or hydraulic system from staying cool. Test the fan motor and replace if faulty.

Effective troubleshooting is key to keeping your Kobelco 7080 crawler crane running smoothly. By understanding common problems and taking steps to resolve them, you can avoid costly downtime and ensure the life of your machine. Regular inspections, proper maintenance, and prompt action when problems arise will help maintain optimal performance for years to come.

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Kobelco 7080 crawler crane

Heavy equipment repair

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YANTAI EVERGROWING IMPORT AND EXPORT CO., LTD.

ADD: A508, NO 133-1 YINGCHUN ROAD, LAISHAN DISTRICT, YANTAI CITY, CHINA

ZIP CODE: 264003 

TEL: +86-535-6724921

FAX: +86-535-6724922

EMAIL: info@crawlercranesparts.com

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