Bobcat 843 problems

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bobcat 843 problems

A while back I posted a question about the Isuzu diesel in our H Bobcat. It was blowing the oil fill cap off of the valve cover. I got a new cap and took the time over the weekend to give it a try. The cap stayed on but still oil going of the the breather tube. Checked the oil again and it is over full and pretty thin. One of the suggestions that came from here was that the injector pump was pumping diesel into the crankcase. I now suspect that is probably the case.

Any tips or advice before I start tearing into this thing? I do a lot of mechanical and vehicle work, but I've not messed with the inner workings of a diesel system before. Could it be as simple as a blown gasket or a bad o-ring? What about the timing on the pump? Are there any other known sources to this problem. I should add that the last few times that it was used it acted like it was starved for fuel under a load.

I did the standard filter changing and it didn't help, but I suspected a colasping fuel line for that problem. I've never had the opportunity to have the injection pump off an Isuzu.

Finishing up the Bobcats hydraulics

I've been finding Bobcat service manuals surprisingly affordable even from the dealer. I would look at the fuel transfer pump not the injector pump. That maybe the source of the desiel getting in your crankcase. Discussion Forum. Welcome Guest, Log in or Register. CWL Report to Moderator.

bobcat 843 problems

Re: Bobcat injector pump in reply to CWL, We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others.

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Your standards drive our innovation. We're proud to be the industry leader, and we're committed to transforming your work. For more than 50 years, Bobcat has built compact equipment that helps you work more efficiently and effectively. Whatever your job - digging, trenching, breaking or material handling to name but a few - Bobcat Backhoe Loaders have the power to get it done efficiently.

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The Bobcat loader has a rear-mounted diesel engine. If the engine won't start or is not operating properly, start by checking the fuel system tank, fuel lines and fuel filters. Diesel fuel filters need to be changed on a regular basis, more often in dusty work environments.

Make sure the fuel flows freely from the tank to the fuel injectors. Check the injectors for clogging if the engine is not operating smoothly. Glow plugs warm the combustion chambers so the engine will start properly when it is cold.

The glow-plug lead wires are placed on each side of the engine. Check their connections to be sure they are snug. Also, make sure the throttle cable is secure to the throttle body. Just follow the cable from the accelerator to the throttle body on the top front of the motor.

Those cables can work themselves lose. Do not overfill the reservoir; hydraulics work best with the exact amount of fluid in the system.

Check the hydraulic fuel filter. Be sure the hydraulic pump located in front of the engine is operating to specifications. The pump could be direct-drive on the engine or belt driven, depending on your model; if it's belt driven, make sure the belt is tight and not frayed or worn.

Check the fittings for all the hydraulic lines for leaks or poor fits. Do those examinations when the hydraulic system is pressurized and the engine and pump are operating.

Pinhole leaks are more apparent when the fluid is under pressure the pressure is high, so wear safety goggles and gloves to prevent injuries. Check all the seals and fittings to the control valves. Make sure the valves fully open and close. If the joystick controls for the loader and steering are not responding, be sure that all the connections are secure. You may need to replace the joystick control circuit board located in the joystick arm rest if the problem continues.

Also, make sure the connecting wires from the joystick to the hydraulic pump and actuators are connected.

Bobcat 843 Specifications

Slow response can indicate control system malfunctions. There are safety switches throughout the Bobcat on various panels and the driver's seat. Any malfunction of those switches can cause problems. Check the switches for good connections and proper operation. Excessive battery drain can also indicate a bad circuit.Discussion in ' Skid Steers ' started by javFeb 9, Log in or Sign up.

bobcat 843 problems

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This will allow all of our members to see your question and give you the best chance to be answered. After you've made a number of posts you will graduate to Full Member status where you'll see a few more privileges. Following these guidelines will help make this the best resource for heavy equipment on the net.

Thanks for joining us and I hope you enjoy your stay!! Welcome to HeavyEquipmentForums. Please tell me I did't just fry my bobcats hydraulics!! I have a bobcat I was cleaning up snow blizzard of and it was working great!

Used it for about 4 hours without problem. My neighbor came by and asked if I could move a plow pile for him- I had done a bunch already so i drove it down to his place about yards down the road- did the pile- no problem, then I was just dressed things up a bit Then it happened - As I lifted a small pile over head to dumpI tilted the bucket down and as I went to pull back and tilt it back up, the tilt didn't work and the reverse was real noisy.

I shut it down immediately it sounded that bad. The bucket was still raised and tilted down. I checked the hydraulic oil and it wasn't even showing on the dip stick. Walked home- got a gallon of Hydraulic oil not bobcat and it took 3 quarts to get back within the lines on the dipstick. Started fine and it does move but I have no movement in the tilt and lift cylinders!

I was able to let the arms come down via gravity and tilted the bucket back using the the ground and reversing but I have no hydraulic power for lift or tilt- NONE. Even moving doesn't seem right! Did i just fry my hydraulics? BTW- fluid and all filters were changed less than 50 hours ago with bobcat brand.

HELP- is there a bleed process or something I can try? Thanks in Advance The pump may be out, but it may not have anything to do with low fluid. Having the bucket up in the air may have caused you to show the machine being low on fluid, a gallon low typically wont cause a problem. Your pump may be out, but I doubt it was due to low oil level. KSSSFeb 9, I've gone out 3 times to see if perhaps there was an air pocket keeping the pump from priming- no go.

To anser some questions- auxiliary hydraulics aren't engaged. I did try it both ways just to be sure and there's no audible difference either way - ie.Please use the navigational links on your left to explore our website. I was recently given a bobcat that has steering problems. The bobcat will only turn left. When pushing the levers forward, the left wheels turn very slowly.

The right hand side seems to work fine. In the interim does anyone have any suggestions? Is this fluid or belt drive? Thanks in advance for your suggestions!

That is a hydrostatic drive. It could be linkage out of adjustment,or slipping on a shaft. It can also be a bad hydro. Best thing to do is wait until your manual arrives,and go buy a set of high pressure guages and fittings and go through the troubleshooting step by step. Welcome Guest, Log in or Register. Mike Report to Moderator. Brokenwrench Report to Moderator. Re: bobcat steering problem in reply to Mike, Re: Re: bobcat steering problem in reply to Brokenwrench, We sell tractor parts!

We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts.

Shop Online Today. All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. None of these trademark holders are affiliated with Yesterday's Tractor Co. John Deere and its logos are the registered trademarks of the John Deere Corporation.The Skidsteer is a rigid-framed vehicle manufactured by Bobcat and equipped with lifting arms, designed for a variety of small scale tasks, such as pallet lifting and excavation.

The vehicle can be equipped with a variety of attachments, depending on its intended use. The lifting arms in a Skidsteer are located on either side of the driver. The Bobcat was in production between and The Bobcat Skidsteer is equipped with a universal skid steer quick hitch, which enables the owner to connect a wide range of skid steer attachment to the loader, such as: buckets, grapple buckets, Harley rakes, four-in-one buckets, hydraulic augers, pallet forks, trenchers, sweepers, brush cutters and stump grinders.

If the Bobcat is equipped with the optional high-flow feature, then more powerful attachments can be equipped. The Skidsteer is equipped with a Perkins diesel engine, which possesses a displacement of The engine has four cylinders, and is able to produce a peak power output of 54 hp.

Bobcat 843 Hydraulic Controls Malfunction

The engine utilizes a liquid cooling system to prevent overheating. The Bobcat has a rated operation capacity of 1, lbs. Its bucket has a capacity The has a tipping load of 3, lbs and a pumping capacity of The Skidsteer has a length of It has a height to the bucket hinge pin of It has an operational weight of 6, lbs. In addition, it comes with front and rear tires that measure 8.

The Bobcat comes equipped with an enclosed cab which is equipped with both heating and air conditioning. This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.

bobcat 843 problems

To submit your questions or ideas, or to simply learn more about It Still Works, contact us. Bobcat Specifications by Cathel Hutchison. Performance Specs The Bobcat has a rated operation capacity of 1, lbs. Additional Features The Bobcat comes equipped with an enclosed cab which is equipped with both heating and air conditioning. About the Author This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.Discussion in ' Skid Steers ' started by smittyJan 23, Log in or Sign up.

Heavy Equipment Forums. Thank you for visiting HeavyEquipmentForums. Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site.

Bobcat 843 Specs

The more members that join, the bigger resource for all to enjoy. Thank you! Thank you for joining Heavy Equipment Forums! If you are new to forums we communicate with "Threads", please search our threads to see if your topic may have already been answered and if not then click "Post New Thread" in the appropriate forum.

This will allow all of our members to see your question and give you the best chance to be answered. After you've made a number of posts you will graduate to Full Member status where you'll see a few more privileges.

Following these guidelines will help make this the best resource for heavy equipment on the net. Thanks for joining us and I hope you enjoy your stay!! Welcome to HeavyEquipmentForums. Hello, brand new to the forum and just bought my first skid steer ever, Bobcat I bought it with hydraulic issues, but not really sure what I was getting into. The left foot lift is not working at all, doesn't cause lifting arms to move.

The right foot tilt will work the cylinder when there isn't a bucket on it, if bucket on it, it will not lift the machine off ground when you tilt down. When you curl the tilt to the fullest, then the loader arms will lift up, when nothing is touching left foot peddle. Also, when you pull the right steering lever in towards your thigh auxiliary functionthe loader arms will lift up and no foot peddles are being pressed. Where do I start to diagnose this, could this be the control valve spools leaking across circuits, or could this be a relief valve issue?

Appreciate any help, I am determined to fix this myself even if it takes me a few months. I want to learn about these machines. I would start by checking that the seat bar is all the way down and that it engaging the release arms that allow the foot controls to work. The auxiliary hyd lever will operate toward you thigh but will also operate away from your thigh and can lock in.


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