Modern View Forum powered by 2001, 2005 phpBB Group I removed the fuel filter, some fuel inside, the filter looks okay, but I dont know how old it is, so it might be blocked. It then goes to the lift pump then to the injector pump. Why Should I replace all six of my DD13 or DD15 Fuel Injectors? If you do not check this box, your product will not ship until Diesel Pro receives a qualifying core. If the belts become loose, it will cause the engine to lose power. Usually, this kind of occurrence is a possible indication of insufficient fuel pressure. The injectors also have a rubber cap over it. 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. Because the pinhole leaks are apparent when the systems fluid is under pressure. We welcome you to register using the "Register" icon at the top of the page. There is a small hose that goes to number one injector tap off line. 514 views, 3 likes, 0 loves, 1 comments, 0 shares, Facebook Watch Videos from Texas Diesel & Automotive service: Quick injector test on a bobcat skid steer this loader misfires when the engine cold Quick injector test on a bobcat skid steer this loader misfires when the engine cold | By Texas Diesel & Automotive service So you need to check each of them. What this means is having the trim code loaded into the Bobcat equipment ECM is important for proper engine operation. This isnt the case with faulty charge pumps. So keep the skid steer under regular maintenance and enjoy long-time service from it! This compact track loader is exceptionally well designed and has impressive features. 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. Or you may be experiencing some issues with your machine and need to test your injectors to determine if they are faulty. Replace the battery in this case. Some people overfill it and think it will work better. It may sit for several months without use. This can cause some serious problems with the tractors engine. Something seems to be disallowing fuel through. An introduction to the Detroit Diesel DD13 and DD15 Fuel System. Never do this. 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. Once loosened, remove the bolt and place it to the side. After that, check your primary clutch whether it sticks a little off the throttle and jerks back, which can cause penetrating clutch weights or wasted bushings. 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. Well, guessing that the main culprit can be the primary or secondary clutch was not entirely wrong, but you need to be sure first before you actually take the action. If your compression is good, it would be worth getting your injection system done. These pumps are very expensive and this might help prevent misdiagnosing the injection pump due to low rail pressure.Want more? Regardless of whether you are cleaning or replacing the injector, we recommended using a new o-ring seal, just make sure you put lubricant when placing a new o-ring. 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. Thats why the users are also happy with this track loader. We get asked frequently about whether the inlet metering valve can be checked on the equipment. If the fuel cannot flow properly from the tank to the fuel injector, the engine will lose its ability to run powerfully. Thanks for your patience! Consumers noticed that their vehicles exhaust header pipes were cracking and had the potential chance of extreme burn or fire hazards. I used the hand pump to feed fuel into the glass bowl. If you are working in a dusty ambiance, the replacement should be more frequent. If you do have any questions about anything related to removing an injector or about our. Some Bobcat tractor models are available for all kinds of activities you can think of on the field. So if you have limited space but need maximum lift height, this is the one you should go for. The most common reason for failure we see in these injectors is fuel contamination. The first unit had issues at 2600 hours but was repaired under warranty from Bobcat but failed again at 3800 hours. And this can lead to a total shutdown of the tractor in some cases. Apart from the problem of hard surfaces, the tires wear out rather quickly. 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. It can happen when the ECU loses the connection or contact with the Transfer case actuator motor or the front different actuator. On the other side, white smoke can indicate a blown head gasket. If the injection pump is failing, the pump will have a difficult time keeping up with desired engine rail pressure. This process looks fairly similar for each fuel system so let's get started. You should also check the fuel cap to make sure it is venting. Thankfully, Bobcat provides a solution to this problem by designing reinforced tires that can withstand hard surfaces. But if it constantly jumps out when you put power into it, that simply confirms something is wrong with your four-wheel-drive system. If you do not, your IMV may be bad or wiring to the IMV may be compromised. Additional OEM Bobcat Part Numbers: 7275454REM, 7334032, 7030364, 7334032REM. Still, there is a recurrent issue of oil leaks and problems with other mechanical moving parts. The reinforcements made on the tires were probably designed for specific types of surfaces. All connections should be secure properly for the steering to respond. The previous owner just told me to start it with the air bleed screw open and gradually close it as the engine clears. You are using an out of date browser. In many cases, the tractor operator will have a tougher time getting full control of the machine, especially when maneuvering. Bobcat equipment software has a test to check the injectors to see if the respond to a signal. on how to clean your injector at home. 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. Unfortunately, some owners only succeed in causing more problems with the motor. The appearance may be different than you're accustomed to but we will work on restoring things as closely as possible. Tazza said: There shouuld be a pickup screen with a one way valve in the tank. for News, Products & Specials, 7249380 | Reman Fuel Pump fits Doosan Bobcat D18/D24, 7256772 | Delphi Fuel Metering Valve Fits Doosan Bobcat Tier 3/4, 7030409 | Genuine Delphi Fuel Rail fits Doosan Bobcat D24, 7275454 | Delphi Fuel Injector fits Doosan Bobcat D18/D24, Feel confident purchasing from a company who has been in the fuel injection business since 1985, Not sure whether your injectors are bad? This is especially true if the tractors are driven for long hours. Thank you! The brand also has good financing options for users who cant afford an outright payment. Whether you need to clean the injector, take it to a dealer, or replace it, its a fairly simple process to remove a fuel injector from a Doosan Bobcat engine. 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. Many owners who live far away from major towns and cities cant easily access repairs for this frequent problem. Engine overload - Load reducing is recommended. Right now the post is the last one on page three if you want ot search that way. Each will need to be removed. Lack of eater or coolant can also cause this. 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. Keep in mind that the pinouts are model-specific, so check the Bobcat loader's manual to determine the compatible pinouts. Was wondering if there is anyone willing to talk me through this process. SPONSORED. Diesel Fuel Injectors: 12 Months Unlimited Miles/Hours As a result, he was forced to shut down the engine and had to rock the engine in order to free the clutch so that the gear shifter can start shifting. Apart from these two, make sure the engines throttle cable is secured to the throttle body all the wiring and connector pins are in good condition without any corrosion or damage. Remove the nut on the top of the injector, the . After years in the Bobcat it likes to fall off into the tank. Venting is a good point too. Some users get frustrated after searching in vain, and simply decide to install a different brands spare part in their machines. Have someone turn the key on with the engine off and press the accelerator pedal all the way to the floor and hold it there for about 10 seconds. 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. Here are a few tips to help you get your Bobcat equipment up and working the way it should be. Refill the fuel tank with the right amount of diesel. Pressurize the hydraulic system and ensure the pump and engine are running before this check. To make things worse, the problem can be tricky to figure out. There are about 10 screws that go around the cover. Expert Diesel Parts was established in 2015 to serve the farming, agricultural and construction communities across the USA and globally. The first post is a list of all the repair posts in that thread. The engine doesn't have the same power as the Kubota and 2. 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. Thank you for visiting HeavyEquipmentForums.com! The problem has come back, I have checked the fuel lines, the fuel pickup tube in the fuel tank, replaced the fuel . This is how to do it. To bleed it, you open the bleed screw, squeeze the hand primer till you can feel that there all the bubbles are gone. Next, you will need to pull off the top cover that sits underneath the fuel lines. Next, remove the hold down. But they are not without a few drawbacks. Purchase your parts from us today or reach out if you have any questions. So keep them under regular maintenance. Does anyone know if Bobcat has started to use these fuel recirculation systems on the newer machines ? for the D24, D34 and D18 engines. You may have to loosen the injector with help from a wrench. Clogged filters for the oil case drains also contribute to the failure of the motor. The company initially received several consumers complaints about the 2015 Bobcat 3400 UTV models. If the valve fails, the engine has no way of responding to commands to move rail pressure up or down. This is most probably the only major issue that happened to the Bobcat 3400 series. Each unit had issues at the 3000 to 4000 hour mark and were extremely hard on fuel filters (sometimes 2-3 between 250 hours). A small amount of contamination can invade the control valves in these injectors and cause premature failure. When removing injectors, the o-rings can sometimes get stuck in the rail. If someone could explain how the 743 fuel system works I would much appreciate it. We also recommend using protective gloves and eyewear to prevent fuel leakage. But sometimes you need to replace the whole system, which costs a lot. This Max fuel stop screw just limits the maximum amount of fuel that can be delivered to the engine at max load condition. 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. We have talked a lot about diesel fuel injectors in some of our other blogs, but today we are going to go over how to remove a diesel fuel injector from a Doosan Bobcat engine. (You must log in or sign up to reply here. This fitting can be cleaned, if cleaning Usually a bad or failing fuel injector will produce a few symptoms that can alert the driver of a potential issue 1. Sometimes, it can also happen when your fuel system and electrical wiring or terminals covers with an excessive volume of corrosion and external debris. One particular 2012 Bobcat UTV user mentioned that he was encountering all those earlier mentioned symptoms. Other problems include the short lifespan of some tires and issues with the charge pumps. Thats because the fuel cannot flow due to the clogged filter eventually resulting in the power loss of the loader. But after some time, he noticed that gradually it started to take a few revs above idle to get the clutches for shifting. First, you will need to loosen the bolt. D34 Fuel Injector: 7261663 Bobcat Doosan D34 Fuel Injector Refer back to the injector hold down clamp. It can even lead to a total breakdown of the tractor. You can maneuver it through tough terrain without thinking about overheating. To do that you will need to pull off the PCV tube. Return fuel passes through the fitting to return to the fuel tank. Remove the 3 clamps on the injector tube lines. Or you may be experiencing some issues with your machine and need to test your injectors to determine if they are faulty. 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. Engine misfires and decrease in power, acceleration, and fuel efficiency One of the most common symptoms of a potential problem with a fuel injector is engine performance issues. 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. Later in August 2018, the company recalled a total of 2,700 units of 3400 and 3400XL UTV models. This is especially the case with owners living in rural areas. The more members that join, the bigger resource for all to enjoy. Ultimately, it enhances your site productivity. 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. This is why an honest review on an independent, trustworthy website like this one is usually a good first step. This component tends to develop fault rather too frequently in some Bobcat tractors. Fuel system can't keep up with the demand and constantly needs fuel filters to get through a storm. Rough Idle. The reason for this is there is no great way of cleaning the fuel rail. My problem is I need the all wheel steer during the construction season, otherwise I'd never buy a Bobcat again. Have you checked your air filters too? The bobcat cranes are best known for heavy-duty operations. So make sure its in good condition and the fuel injector is not clogged. 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. Heavy Equipment Forums is scheduled to go offline at 6:30am Eastern Sunday March 5th for an extensive software update. Refill the fuel tank with the right amount of diesel. The injectors will bleed rail pressure through the fuel return or could even have a nozzle stuck open (less common). Its the perfect example of a well-built and well-equipped machine that lets you smoothly complete even the most demanding job. Thanks for joining us and I hope you enjoy your stay!! If this is the case you just need to clean or replace the filter. Removal of this seal will void any warranty. . Below is a list of products and associated warranties: If you fail to do this, the filter can get clogged and defective resulting in contaminated fuel and faulty engine performance. The hydraulic system can be the source of a lot of issues in your Bobcat t590 compact track loader. Your just checking every crazy thing that could be a problem. High-pressure common rail fuel system is an advanced fuel injection design that regulates fuel pressure and injection timing. Bobcat Tractors are among the top compact utility tractors currently on the market. Experiencing similar fuel filter problems here in Massachusetts. The Max fuel adjustment screw on the injection pump is sealed/wired by Kubota as a tattle-tale so that Bobcat and Kubota can see if it has been tampered with. Once all screws are off, remove the cover. 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. Ideally, the charge pump releases the required pressure to the brakes and prevents a free fall drive. 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.
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