Discussion in 'Skid Steers' started by warbird, Feb 18, 2015. Thanks for all the advice. You will need to start by removing the airbox to get access to the injectors. The brand also has good financing options for users who cant afford an outright payment. If they malfunction, the steer responds late. Heres a link to our Bobcat troubleshooting article: Bobcat Troubleshooting, Warranty by product type. Modern View Forum powered by 2001, 2005 phpBB Group It is not uncommon for many Bobcat tractor users to believe that their motor is faulty when the actual problem is with the charge pump. 721 Bobcat Injector Pump Shimming Gaskets, Problem with joystick buttons Bobcat S175. For a better experience, please enable JavaScript in your browser before proceeding. Ultimately, it enhances your site productivity. When a technician sees the codes, they can identify the faulty circuits and know the main cause by further inspection. I discovered that if I squeezed the fuel primer ball every 15 seconds, the unit would stay running. Replace the head gasket to solve this. One of the major issues with Bobcat tractors is difficulty in getting parts, especially for rural dwellers. Give us a call with your Bobcat equipment serial number. Driving the machine on areas that need plenty of balance will require a lot of effort. , you can also contact us at contact@expertdieselparts.com. Remove the 3 clamps on the injector tube lines. Injectors are easy to remove/replace. Venting is a good point too. JavaScript is disabled. Additional OEM Bobcat Part Numbers: 7275454REM, 7334032, 7030364, 7334032REM. Bobcat equipment software has a test to check the injectors to see if the respond to a signal. The trim code helps the ECM account for small manufacturing variances in the fuel injector body. Restore performance to your Doosan Bobcat D18 and D24 Tier 4 diesel engine with the brand new 7275454 Delphi fuel injector. Before you decide on any plan of action please read this article. Free shipping. Give us a call with your Bobcat equipment serial number. We sell a wide range of parts including the entire fuel system kits for the D24, D34 and D18 engines. But before you tear into the injection pump assembly, one other common problem with Bobcat machines is the strainer on the end of the pickup tube is clogged. Step 1. Its easier to remove the lines all together, you need to loosen them at the pump and access is hard putting them back on, i generally totally remove them. Pinouts. This also causes the hydraulic fluid and gear oil to mix which can cause additional problems. Another possible reason can be the false alert from your Four-wheel drive light. D18 & D24 Injectors: 7275454 FUEL INJECTOR Below is a list of products and associated warranties: Experiencing similar fuel filter problems here in Massachusetts. However, it is usually best to dig deeper to discover likely issues that may crop up if you choose to buy one of these tractors. Also, the service light turning On can indicate the bad switch, sensor, or 4WD linkage. Something seems to be disallowing fuel through. However, some have also mentioned the problems, which I have already discussed earlier. My question is: should the ball pump up firm? If you fail to do this, the filter can get clogged and defective resulting in contaminated fuel and faulty engine performance. Some owners have mentioned that besides all the amazing features, the Bobcat 3400 is not the best option when considering a vehicle for straight-line performance. Thank you for visiting HeavyEquipmentForums.com! The fuel just runs back to the tank with the bleed screw open, close it then start the machine. And this can lead to a total shutdown of the tractor in some cases. 2023 UpHomely by ISEE PUBLISHING STUDIO. Unlike other fuel systems, Delphi and Bobcat dealers recommend folks not to remove every fuel line in order to prevent potential contamination or damage to all of the fuel lines. For a better experience, please enable JavaScript in your browser before proceeding. Tazza said: There shouuld be a pickup screen with a one way valve in the tank. 1. Perhaps you are looking at doing some maintenance work on your parts in which you should also review this guide on how to clean your injector at home. Core Charge Required The machines have their strengths and weaknesses just like any other tractors from other brands. if they get blocked with dust, it will pour out smoke. for News, Products & Specials, Troubleshooting Bobcat Doosan D18 | D24 | D34 Fuel Systems. The most obvious reason can be the bad, broken, or loose drive belt. This component tends to develop fault rather too frequently in some Bobcat tractors. One of the convenience features that people look forward to when buying heavy-duty equipment such as tractors is the availability of spare parts. Big snow chains on front tires only: is there slip between front and back wheels to allow for the now larger dia front tire. Fuel Rail: When the fuel system becomes contaminated with metal or other debris, chances are this debris will settle into the fuel rail. Welcome to Off-Road Care. Next, at the rear of the cab remove the circle access cover located on the side of the cab to disconnect the heater valve, blower fan, and thermostat connector . Increased Fuel Consumption. Then raise the cab of the loader, locking it in place with the cab shock lock. So wear gloves and safety goggles while performing this check. The continuous deterioration of the charge pump leads to the motor becoming weak or the tractor beginning to tilt to one end. Does anyone know if Bobcat has started to use these fuel recirculation systems on the newer machines ? The Fuel injectors for the Bobcat Doosan D24 and D34 engines are high pressure common rail by Delphi. Fuel odors inside and around the car. Next, you will need to pull off the top cover that sits underneath the fuel lines. Some users get frustrated after searching in vain, and simply decide to install a different brands spare part in their machines. The joystick controls commonly breed some problems. Big snow chains on front tires only: is there slip between front and back wheels to allow for the now larger dia front tire. Regardless of how durable and well-built a tractors components and parts are, they will eventually break down and need replacement. While this may work in a few cases, it is only a temporary solution and will ultimately lead to more problems. First, you will need to loosen the bolt. Whether you need to clean the injector, take it to a dealer, or replace it, it's a fairly simple process to remove a fuel injector from a Doosan Bobcat engine. But if it constantly jumps out when you put power into it, that simply confirms something is wrong with your four-wheel-drive system. He even noticed notably low hours while having those issues. **Note: Unless otherwise stated, no labor warranty included**, Join Our Mailing List Its the perfect example of a well-built and well-equipped machine that lets you smoothly complete even the most demanding job. Start by grabbing an 8 millimeter socket wrench and remove each screw placed around the cover. If you do not check this box, your product will not ship until Diesel Pro receives a qualifying core. If you replace the injection pump or injectors and do not replace the fuel rail, there is a chance the debris sitting in the rail from a previous failure will once again be introduced into the components which were just replaced and cause premature failure. bobcat 843 injector pump Yesterday's Tractors Forum Index > Crawlers, Dozers, Loaders and Backhoes Jump to: TRACTOR PARTS TRACTOR MANUALS We have the parts you need to repair your tractor - the right parts. Heres a quick rundown of the major pros and cons. We welcome you to register using the "Register" icon at the top of the page. Diesel Fuel Injectors: 12 Months Unlimited Miles/Hours 10. There will be a few more litle hoses to each one to the rear of the head. Although I have already mentioned earlier belt and clutch can cause issues while explaining the other problems, several users have confirmed to encounter real trouble with the 2011 Bobcat 3400 because of the drive belt. I might get 5 minutes out of it, sometimes a little more, 10-15min. Return fuel passes through the fitting to return to the fuel tank. If you are interested in having us test your injectors, give us a call. Our technicians expect the update to take up to 24 hours due to the size of our files. Atart at one end and remove from the inejctor and pump. My problem is I need the all wheel steer during the construction season, otherwise I'd never buy a Bobcat again. Removal of this seal will void any warranty. Some users who drive the Bobcat tractors on concrete, asphalt, and other types of hard surfaces discover a common problem. Sometimes, it can also happen when your fuel system and electrical wiring or terminals covers with an excessive volume of corrosion and external debris. The switch or glow plug relay can need replacement too. (Explained for Beginners). If the injection pump is failing or has failed, the engine may not start or run but with low power. Common Problems of the Bobcat 3400: 1. However, a faulty charge pump can also contribute to the final failure of the motor drive, although it starts on its own. When this happens the rubber primer bulb in the fuel line . Damaged radiator cap or dirty radiator core - Clean radiator or change cap. It can even lead to a total breakdown of the tractor. It then goes to the lift pump then to the injector pump. If your model has a belt-driven pump, maintain that the belts are not worn or loose. I should also say that the tank did run empty at one stage, never had problems before that, possibly there is air in the system disallowing fuel to be pulled through. Repair them if there are any. If you are working in a dusty ambiance, the replacement should be more frequent. Next, grab a 6 millimeter hex allen head (make sure the bottom of the allen head is not rounded off since the bolts are incredibly tight). So, lets learn about the 5 most common problems that one might experience with the Bobcat 3400 UTV-. If the belts become loose, it will cause the engine to lose power. Best Evergreen Trees to Plant In New York, 10 Evergreen Trees to Plant in North Carolina, 4 Most Common Problems with John Deere 790 and Solutions, 7 Most Common Problems with Kubota L3301 and Solutions, 6 Most Common Problems with New Holland Tc33d and Solutions, 5 Most Common Problems with Kubota B7500 and Solutions, 6 Most Common John Deere F725 Problems & Possible Solutions, 7 Common Problems with Kubota L3301 and Their Solutions, 4 Most Common Problems with John Deere 790 and Their Fixes. Make sure to remove the cover before removing the injection fuel lines. Hydro-lock, which can lead to catastrophic engine failure. I opened the air bleed screw and managed to get the engine running, lots of black smoke, as the engine improved I gradually closed the air bleed screw.ran well. One of the most common problems we hear about is equipment where fuel has been contaminated and contamination has moved to the fuel injection pump, the fuel rail, and the fuel injectors. It happens when the air filter is dirty or gets completely clogged. Questions about fit? It sits in front of the engine and is a crucial part of your loader. There may be several reasons why you might need to remove an injector. This will cause problems if the tractor is driven in locations such as construction sites and other places that are prone to tire punctures. The company initially received several consumers complaints about the 2015 Bobcat 3400 UTV models. Ideally, the charge pump releases the required pressure to the brakes and prevents a free fall drive. If you have water in the fuel you will be able to see it when it separates. Engine overload - Load reducing is recommended. If you do have any questions about anything related to removing an injector or about our parts, you can also contact us at contact@expertdieselparts.com. Select Common Rail Injectors: 24 Months, Unlimited Miles/Hours One particular 2011 version user has mentioned that initially, he loved riding the UTV and had no complaints at all. Turbochargers: 12 Months, Unlimited Miles/Hours I have an older 543 Bobcat that I use occasionally around the house for landscaping and repair. Some also claim that after a further investigation, they found out they do not have a dirty or clogged fuel pump and still have this commotion on their vehicles. The company immediately got involved to investigate thoroughly. To make things worse, the problem can be tricky to figure out. Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. https://spotifyanchor-web.app.link/e/jY1o8cQ3XwbAmazon Affiliate Links:Injector Leak Tester https://amzn.to/3oV4yJvMy cool orange gloves https://amzn.to/3oU0qtk#bobcatrepair #howididit #bobcat Before you get into removing any other parts, grab a cloth or a towel and clean off any dirt, dust and particles that could potentially fall into your engine. Diesel Pro has developed an 8-step testing procedure to electronically simulate the on-engine conditions on our test equipment. Unfortunately, some owners only succeed in causing more problems with the motor. These tires spread the weight of the tractor evenly over a large area to increase balance. It may not display this or other websites correctly. See our core policy by clicking return policy at the bottom of the page. While researching and going through several online reviews, articles, blogs, and user forums to see how the consumers feel and react after owning the Bobcat 3400 UTV model, I discovered that most users are quite satisfied with their experiences. The bearings will most likely slip into the oil puddles and cause internal damages. If the fluid level is high or low, it wont be able to provide the expected performance. In many cases, owners will spend time, effort, and money on repairing the motor, but the problem will persist. But after some time, he noticed that gradually it started to take a few revs above idle to get the clutches for shifting. And thats because a weak charge pump may disguise as a problem with the motor. Today it started, ran for about 1 minute and died. Keep in mind that the pinouts are model-specific, so check the Bobcat loader's manual to determine the compatible pinouts. Never do this. 9. Whenever we talk about any skid steer problem, this engine issue always comes first. This procedure will lessen the chance of trapping air in the filter. Bobcat t590 is one of the greatest additions of them. If the 743B used the same engine as the 743 there should be a lift pump mounted on the side of the injection pump housing. The most common reason for failure we see in these injectors is fuel contamination. If there is an open or short circuit in the glow plug, it can cause the engine to be defective. The fuel control valves in these injectors are very small and any amount of debris in the injector can get lodged in the control valve and cause problems. That would let it run for 10 min or so and then power out. Again, if the hydraulic fuel filter is full of dirt or clogged, the loader wont get enough power. Is this rear pipe the problem? Engine issues, hydraulic pump issues, contaminated fuel all of these are the common problems. I have covered the possible solutions as well - . Later in August 2018, the company recalled a total of 2,700 units of 3400 and 3400XL UTV models. Please remember that unless you need to take out all 4 of the injectors, we recommend only removing the ones necessary to prevent damaging fuel lines. There is a bleed screw that is on the pump where the fuel line connects. After checking the fuel filter, its time to check the fuel tank. If you are interested in having your pump tested, give us a call. Questions about fit? Engine overheats Lack of engine coolant - The cooling system needs to be refilled and checked for faults. We get asked frequently about whether the inlet metering valve can be checked on the equipment. I'm not sure what to do with the fuel system once air has entered and I also removed the fuel filter. These pumps are very expensive and this might help prevent misdiagnosing the injection pump due to low rail pressure.Want more? Both the injectors and the injection pump are highly vulnerable to poor fuel quality, contamination, or foreign debris. We work with a lot of Doosan's D18, D24 and D34 engines which are commonly used to power skid steer loaders, excavators, track loaders, tow compressors and toolcats. The hydraulic system can be the source of a lot of issues in your Bobcat t590 compact track loader. I'm not familiar with diesels, so gradually trying to work things out. These fuel lines are bolted down pretty firmly and it can be easy to damage a fuel line or not properly seal it back. The goal here is to remove ONLY the fuel line that is attached to the injector that you absolutely need to remove. And this can lead to a total shutdown of the tractor in some cases. Thanks for that. An introduction to the Detroit Diesel DD13 and DD15 Fuel System. Bobcat tractors rank among the highly-rated tractors in the market. The injectors also have a rubber cap over it. Was wondering if there is anyone willing to talk me through this process. I haven't experienced any noticeable difference in power between the new and old. Please accept the core charge before adding to Cart. Other problems include the short lifespan of some tires and issues with the charge pumps. Warbird does Cat make a switch for the pattern changer on their machines or is it just left joystick operates machine and right joystick operates loader/bucket. The more members that join, the bigger resource for all to enjoy. According to a group of Bobcat 3400 users, some of the previous models only shift gears when its off or when they rock the unit forward and backward. I used the hand pump to feed fuel into the glass bowl. Now go ahead and remove the fuel line on the injector that you need to replace by unscrewing both caps on each end of the fuel line. Symptoms of Leaking Fuel Injectors: Hard Starting when engine is hot. Poor Emissions. Most Bobcats of the late 90's vintage have the tank under the engine and the fuel line goes to a steel 90 degree fitting on top of the tank. With the things you've described, most likely failed lift pump. The reason for this is there is no great way of cleaning the fuel rail. Refill the fuel tank with the right amount of diesel. This can cause some serious problems with the tractors engine. After you've made a number of posts you will graduate to Full Member status where you'll see a few more privileges. If the return fuel is blocked, pressure increases in the injection pump. Find the one about timing the LS180 etc and click on the link to open the pdf file. Have you checked your air filters too? If your filter gets clogged, the hydraulic fluid backs up into the motor which causes high pressure. 2023, Expert Diesel Parts Powered by Shopify, How to Remove Bobcat Injectors Fuel Injector 101, We have talked a lot about diesel fuel injectors in some of our other, There may be several reasons why you might need to remove an injector. One quick check you can do with the Inlet metering valve (IMV) is to put your finger on the valve and turn the key on in the equipment. Based on several consumers reports, the 2012 version Bobcat 3400 gas UTV models have issues, such as engines starving for fuel, stalling, missing, and even engine misfiring or backfiring. (You must log in or sign up to reply here. bobcat 773 injection pump. Checking this box adds a Core Charge to the product. And at time was it done. This compact track loader is exceptionally well designed and has impressive features. This is why an honest review on an independent, trustworthy website like this one is usually a good first step. The valves should open and close fully. Inside the tank is a 1/4" ID vinyl tube ending in a steel screen assembly with a check valve to keep fuel from returning to the tank. Do not forget to check on your pressure gauges condition and replace it if needed. Fan belt is worn or faulty - Fan belt must be replaced. Carefully ensure that the hex allen head is fully seated in the nut of the bolt. Fuel contamination is the leading cause of failure, If you are experiencing rail pressure codes or problems, it is most likely an issue with your injection pump or injectors, Keep the fill area on your equipment clean and free of debris, Change the fuel filter regularly to keep your fuel as clean as possible, Excavators: E32, E35, E42, E45, E50, E55, E85, Skid Steer Loaders:S450, S510, S530, S550, S570, S590, S595, S630, S650, Track Loaders:T450, T550, T590, T595, T630, T650. But it doesn't seem to be the cold, we can't run our machine with the snowblower even as warm as 30 degrees. Once loosened, remove the bolt and place it to the side. Or you may be experiencing some issues with your machine and need to test your injectors to determine if they are faulty. SPONSORED. We'd appreciate any help you can offer in spreading the word of our new site. What I also found was a second fuel or air line coming from the tank and fitting onto a small pipe at the rear of the engine on the injector rail I guess its called. It may sit for several months without use. Hopefully someone here might be able to help me in the right direction. Any help appreciated. Some Bobcat tractor models are available for all kinds of activities you can think of on the field. One particular user even mentioned that he was constantly having gear shifting issues and he even experienced very rough shifts when the gear originally shifted. I lifted the canopy to get to things and see things better. If you have any problems getting back online contact me through Facebook Messenger on the Facebook HEF page. Thats because the clogged filters will push the hydraulic into the motor and mix everything up. The most common reason for failure we see in these injectors is fuel contamination. The Fuel injectors for the Bobcat Doosan D24 and D34 engines are high pressure common rail by Delphi. The machines are powerful, versatile, and built to last. This is especially true if the tractors are driven for long hours. Step 2. The company also acknowledged that the exhaust header pipes were faulty or not assembled accurately, and this was a factory malfunctioning issue caused by a lack of attention from their production unit. Right now the post is the last one on page three if you want ot search that way. for the D24, D34 and D18 engines. Make sure the wires from the joystick to the hydraulic pump and actuators are connected. Please remember that unless you need to take out all 4 of the injectors, we recommend only removing the ones necessary to prevent damaging fuel lines.
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