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John Deere 35G Excavator Repair Guide Part 2: Electrical System Problems

John Deere 35G Excavator Repair Guide Part 2: Electrical System Problems

No Electrical Functions:

- To operate your machine, please note that it does not have any electrical functions. Instead, you have the option to either recharge or replace the battery.

- Your machine is equipped with a single 12-volt battery.

Battery Charge Level Test:

- To determine the charge level of your battery, you can use a multimeter.

- Set the multimeter to a voltage measurement above 15 volts.

- Place the positive (red) lead of the multimeter on the battery's positive terminal and the negative (black) lead on the negative terminal.

 - Based on the multimeter test, you can assess the battery charge level using the following guidelines:

  • A fully charged 12-volt battery should read around 12.6 to 12.8 volts.
  • A 75% charged 12-volt battery should read approximately 12.4 volts.
  • A 50% charged 12-volt battery should read about 12.2 volts.
  • A 25% charged 12-volt battery should read around 12.0 volts.

- Lower voltage values indicate that the battery is undercharged.

- If the battery charge level is significantly lower than expected, another possible cause could be a damaged fuse. We recommend checking the main 60 amp fuse (F61) for any signs of damage.

Battery Undercharged or Won't Take Charge:

 - If your battery is undercharged or it refuses to take a charge, we suggest starting with a simple solution: cleaning and tightening the battery connections.

- Sometimes, a battery that has surpassed its lifespan may no longer be capable of accepting a charge. In such cases, it is advisable to replace the battery.

 

Battery Uses Too Much Water:

- Lead-acid or "flooded batteries" contain a solution of water and sulfuric acid, known as the electrolyte solution.

- During the charge and discharge cycles of the battery, some of the water in the electrolyte solution undergoes a conversion process, resulting in the production of hydrogen and oxygen gas. Over time, this conversion leads to water loss within the battery.

- To ensure optimal performance, it is essential to periodically check and replenish the water level in the battery cells, particularly when operating in high-temperature environments.

 

Cracked Battery Case

If you notice that the hold-down clamp is loose or missing, it is crucial to address this issue promptly. Begin by replacing the battery and ensuring that the hold-down clamp is properly tightened or installing a new one if necessary.

One of the main causes of a cracked battery case is the freezing and expansion of the electrolyte, which is a mixture of water and sulfuric acid. In freezing temperatures, the electrolyte can freeze and expand, exerting pressure on the internal components and the case itself. This pressure can lead to cracks or even ruptures in the battery case.

Regardless of the severity of the case, it is highly recommended to replace the battery to avoid any potential hazards or further damage.

 

Low Battery Output

To address a low battery output, there are several steps you can take. Begin by checking the water level in the battery and adding distilled water if needed. It is important to maintain the appropriate water level to ensure optimal battery performance.

If the top of the battery appears dirty or wet, carefully wipe it clean using a dry rag. This will help prevent any interference with the battery's functionality.

Additionally, it is crucial to inspect, clean, tighten, or replace the cables connected to the battery. Loose or corroded cables can significantly impact the battery's output and overall performance.

Lastly, don't forget to check the posts. Gently wiggle them by hand to ensure they are secure. If the posts wiggle or turn, it is a clear indication that the battery needs to be replaced.

 

The Starter Won't Turn

If you encounter an issue where the starter fails to turn, there are a few potential causes to consider. Firstly, discard the battery if it is undercharged or completely dead. A weak battery can prevent the starter from functioning properly.

In some cases, the problem may lie with a poor cable connection. In such instances, thoroughly clean and tighten the connections to ensure a secure and reliable electrical connection.

Another possible cause is if the starter pinion becomes jammed in the flywheel gear. If you encounter this issue, you have three options to consider. You can either repair the ring gear, replace the ring gear entirely, or ultimately replace the entire starter unit.

 

Engine Cranks Slowly

If you notice that the engine cranks slowly, it is essential to address the issue promptly to prevent further complications. Begin by inspecting the battery cables for any signs of damage or breakage. If you identify any issues, replace the damaged or broken cables as necessary.

It is also important to check for loose or corroded connections between the battery and the starter. These connections play a vital role in delivering the necessary power to start the engine.

If any loose or corroded connections are found, ensure they are tightened or cleaned accordingly. If the problem persists even after addressing the cable connections, you may need to either recharge the battery or consider replacing the starter, as it could be the source of the slow cranking

 

Charging Indicator Light On — Engine Running

If you notice that the charging indicator light is illuminated while the engine is running, it may indicate an issue with your vehicle's electrical system. To address this, it is important to inspect and address any loose or corroded electrical connections. Specifically, check the connections on the battery, ground strap, starter, or alternator. Tightening any loose connections or cleaning off corrosion can help resolve the problem.

 

Noisy Alternator

If you notice unusual noises coming from your alternator, it is important to investigate and address the issue promptly. Begin by inspecting the pulleys and the drive belt connected to the alternator . If either of these components appears worn, damaged, or misaligned, it is advisable to replace them. Additionally, if the pulley is not worn but misaligned, you may need to adjust the alternator mount to ensure proper alignment.

Another potential cause of a noisy alternator is a faulty alternator bearing. To diagnose this, you can loosen the alternator belt and manually turn the pulley by hand. If you feel any roughness or resistance while turning the pulley, it indicates a problem with the alternator bearing. In such cases, it is necessary to repair or replace the alternator to restore proper functionality.

 

No Monitor Panel Indicators Or Gauges Work

If you find that none of the monitor panel indicators or gauges are working, it is crucial to check the relevant fuses. Specifically, inspect the MONITOR B, RADIO 5 amp fuse (F2), MONITOR ACC 5 amp fuse (F11), and the Main 60 amp fuse (F61). A blown fuse can often be the cause of this issue, and replacing the faulty fuse can restore the functionality of the monitor panel indicators and gauges.

 

Angle Blade Suddenly Drifts

In the event that the angle blade of your vehicle starts moving without any command from the operator, it is important to investigate and address the issue promptly. Begin by checking the lever switches, as they play a significant role in controlling the blade's movement. Additionally, inspect the relays and fuses associated with the angle blade. A faulty relay or blown fuse can disrupt the proper functioning of the angle blade. Finally, check the solenoids, as a malfunctioning solenoid can also cause the blade to drift unexpectedly.

 

Angle Blade Doesn't Work

If your angle blade fails to operate, you can follow the same steps mentioned above for addressing a sudden drift in the blade's movement. Additionally, it is recommended to check the OPTION, ALARM 10 amp fuse (F15). A blown fuse in this circuit can prevent the angle blade from functioning correctly. By inspecting all these components and addressing any issues found, you can ensure the proper operation of your angle blade.

 

Popular John Deere 35G Replacement parts

1. Filter Kit for John Deere Excavator 35G

Filter Kit for John Deere Excavator 35G With Yanmar Engine 3TNV88 Tier 4

Replace Part Number:
M806419, 4668930, FYD00000374, FYD00001540

Fit For Yanmar Engine: 3TNV88 Tier 4

Applications:
Fit For John Deere Excavator: 35G

Filters included:
1x Lube Filter: M806419
1x Fuel: 4668930
1x Radial Seal I. Air: FYD00000374
1x Radial Seal O. Air: FYD00001540

Enhance your John Deere Excavator 35G with the top-notch Filter Kit, specifically designed for your Yanmar Engine 3TNV88 Tier 4. Optimize performance and ensure maximum efficiency with this essential kit. Elevate your excavating experience today!

 

2. Fuel Injector for John Deere Excavator 35G

Fuel Injector TAM881953 for Yanmar 3TNV88 3TNV84 4TNV84 4TNV88 Engine John Deere 27D 1565 2720 3320

Condition: New Aftermarket

Replace Part Number: TAM881953

Fit for Yanmar Engine: 3TNV88, 3TNV84, 4TNV84, 4TNV88

Applications:
John Deere Excavator: 27D, 27D ZTS, 35D, 35D EXC, 35G, 50D

Upgrade your engine with the Fuel Injector TAM881953 designed specifically for Yanmar 3TNV88, 3TNV84, 4TNV84, and 4TNV88 engines. Compatible with John Deere 27D, 1565, 2720, and 3320 models, this fuel injector is the perfect addition to enhance performance and efficiency. Don't miss out on this essential upgrade for your engine. Get yours today!

 

3. Oil Pump for John Deere Excavator 35G

Oil Pump AM878778 for John Deere Engine 3009 3011 3012 3014 3015 4019 4020

Condition: new, aftermarket

Replace Part Number: AM878778, MIA883558

Fit for John Deere Engine: 3009, 3011, 3012, 3014, 3015, 4019, 4020
Fit for Yanmar Engine: 3TNV82A, 3TNV88F, 3TNE84A

Application:
Fit for John Deere Mower: 1445, 1545, 1565, 3235, 3215, 3215A, 3215B,
3225B, 3235A, 3235B, 7200
Fit for John Deere Tractor: 2032R
Fit for John Deere Excavator: 27D, 30G, 35D, 35G, PC4
Fit for John Deere Loader: 5575, 4475, 575, 570

Get your engines revving with the Oil Pump AM878778 designed specifically for John Deere Engine models 3009, 3011, 3012, 3014, 3015, 4019, and 4020. This top-notch oil pump is the perfect choice to keep your John Deere engine running smoothly and efficiently. Don't miss out on this essential component for optimal engine performance!

 

412V Starter Motor for John Deere Excavator 35G

12V Starter Motor AT318141 for Yanmar Engine 3TNV88F 4TNV86CT John Deere Excavator 30G 35D 35G 50D 50G

Specification:
Voltage: 12 Volts
Teeth/Splines: 15 Teeth/Splines

Fit for Yanmar Engine: 4TNV86CT, 4TNV86CHT, 3TNV88F, 4TNV88C

Application:
Fit for following models:
John Deere Excavator: 30G, 35D, 35G, 50D, 50G
John Deere Skid Steer Loader: 312GR, 314G, 316GR, 317G, 318G
John Deere Four-Wheel Drive Loader: 184G, 204G, 304G

12V Starter Motor AT318141, the perfect match for your Yanmar Engine 3TNV88F and 4TNV86CT! Designed to power up your John Deere Excavator models 30G, 35D, 35G, 50D, and 50G with ease. Get ready to rev up and conquer any job with this reliable starter motor. Upgrade your engine performance today!

 

Shop parts for John Deere 35G Excavator:

https://www.fabheavyparts.com/search?type=product%2Cpage%2Carticle&options%5Bprefix%5D=last&q=John+deere+35G

 

FAB Heavy Parts  Can Help With Your Needs

Welcome to Fab Heavy Parts' online catalog, where you can explore a delightful array of John Deere 35G Excavator's replacements parts .  We have a diverse selection to cater to your needs. Our knowledgeable parts team is at your disposal, ready to assist you every step of the way.

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