bobcat 331

Hi, 2001 bobcat 331 excavator , hose that operates boom swing burst, it’s the hose that operated the cylinder under the floor plates. Replaced hose, bled cylinder , now the boom will not swing left to right, everything else operates as it should . First time owner and I’m stumped. Any help would...

I have a 1999 bobcat 331 with hydraulic trouble. The boom lift cylinder drifts so bad I can't use the machine. This is the only circuit affected, I'm thinking I can rule out pump trouble. I can pick it up under extremely high rpm but immediately falls to the ground. The cylinder was rebuilt a...

I have a 1999 bobcat 331 mini excavator. Boom lift function. Seems like something bypassing in that function. Drifts so bad the machine isn't operable. Will not pick up any weight and just falls to the ground. Strange part is that it seems to be the only function affected. This actually started...

Hello, I have a Bobcat 331 and while traveling the skew or the boom wants to drift to the right, It will not hold center while traveling. It will not drift left.. if you swing it left and stop it stops right, if you swing it to the right it take is a little while to stop. If sound like it a...

My 331 over the last year has had some starting then stalling problems if I start at three or four times it keeps running, it said a code for fuel shut off solenoid shorted to ground I clean some corroded wires in the engine harness I found corrosion in the ignition switch thought it was fixed...

New community member here. I have a 331 looking for some advice or experience using a forestry mulcher on it. I spoke with Fecon for their 28" and they said it would not work. Torrent says their 28" will work. Does anyone have any experience with one of these brands or with a mulcher (not a...

I have a 331 s/n 232511798 with a Kubota V2203-E engine. The temperature gauge rapidly rises from cold to hot and then the motor shuts down. I know this is not an actual overheating problem because this will happen with the engine cold and barely warm by the time it shuts down. Does anyone...

Someone was using my 2007 331G at my remote cabin and was replacing fuses until it stopped working. I thought he said the red one but most likely the ignition fuse because he decided to switch out the ignition. Spent the winter in the rain. Now I’m trying to start it back up.

I have a 01 bobcat 331 d series I parked it 4-5 months ago was fine now starts fine but none of the controls work when I lower the left arm rest down the light comes on but nothing works any help would be appreciated

I have a ‘98 Bobcat 331 MiniX. I lost hydraulic control with the joysticks. Still have blade, driving & can pivot the boom with foot controllers. Blew ignition fuses just prior to losing hydraulics. Replaced fuse and limped out of excavation site. Tried using left joystick to swing & smoke...

This is a duplicate post but realized that I should have placed this post here instead of where I originally placed it. Does anyone know where I can find a service manual for this unit. I just bought it and need to get one. I also need to figure out what parts are needed to attach a hydraulic...

Does anyone know where I can find a service manual for this unit. I just bought it and need to get one. I also need to figure out what parts are needed to attach a hydraulic thumb. It is plumbed and has a bracket on the stick but that's it. Apparently in 1999 Bobcat didn't put everything but the...

Hello, just join today, having trouble with my 2007 331 Bobcat mini hoe, the swing will not stay in place when you let go of the joy stick. you can also move it around with your hand when in the netural position. Someone told me the bolts were broke in the circle, I have check all that and can't...

The 331 mini ex loses operation of all hydraulic controls after 1-2 minutes of lowering the safety arm. The engine continues to run just no movement of any kind. I just had the control panel rebuilt due to problems and now this. The control panel flashes the exclamation symbol and I have flash...

hey guys, first post here! I've been wanting to get a flail mower attachment for our 331 but to my understanding it has 3 lines. supply, return, and case drain line but our machine doesn't have an aux case drain. I hear there is a kit but I'm unsure of where to plumb the aux drain to? Can i...

Hello all, Have a 2006 bobcat 331 that has 2500 hours and has been a solid machine. Lots of hydraulic power for its size and has never let me down until now. Ran the machine last week and everything worked great. Went to move some dirt today and starter cranked but no start. When I...

Hi guys. Would someone be able to tell me if the bobcat 331 D can provide at least 8 GPM in the auxiliary hydraulics while travelling ? I would like to put a brush cutter or edge cutter on it. Answer very much appreciated. Regards

Hi everyone, Nelty here and I have a 331 excavator that the swing brake does not hold in place when you release the joy stick. It stops as should when swinging just does not hold it when digging. I see there are two relief valves and two plungers with springs under the relief valves. Is this...

Cross posted from the Bobcat sub forum, I hope that's ok. I see a couple of similar threads, but not quite close enough. My problem is that I get the flashing warning light, and no flow on the aux circuit. Once the machine is up to temp and (most of) the warning lights settle down, if I hit...

I recently picked up a Bobcat 331 (2007 model) but am having some issues with the temperature. In a nutshell, it shuts down because it thinks it is overheating, but it isn't even very warm. The temp gauge goes up in to the red, and that triggers the shutdown. With the thermostat in, it takes...

I have a 2001 Bobcat 331 excavator. Recently my thumb started closing very slowly (20 seconds), but it still opens quickly (4 seconds). Before this recently started it was opening and closing at the same rate ( 4 seconds either way) Any ideas to diagnose the problem? Thanks

Drive motor is leaking oil from the box in the frame of the picture. Don't want to tear it apart yet as still need to move the machine around but was hoping I can get some knowledge about what may be hiding behind door number 1 and how much work is involved with the repair. Thanks

My Bobby was acting odd today...while holding a log on a slight incline, the machine wanted to slew very slowly downhill while in idle. Normally, it holds position (normally it feels like it locks in position). Also noticed bucket curl couldn't overpower thumb (which it should do)...Lastly...

Hey guys help me out please. I have a bobcat 331. I replaced the aux house because it was leaking. After i did that, the main arm is falling down after fully retrated. It is like is falls down completely loose. I cant work like that. Here is the video. Please help. http://youtu.be/tMqdoQ9TQcE

hello Guys, i hope this is the right place to get some help from you guys concerning my bobcat 331 miniexcavator. i just change the AUX hose, i replace it and reconnected without bleeding (i called dealer to find out about bleeding hydo oil and they say isn't needed). the thing is that the arm...

My Father has a 2002 Bobcat 331 Excavator. It did not come with a factory thumb, but he insisted to buy an aftermarket one with 1-1/2" ram, although it does have the factory Auxiliary ports with a thumb rocker switch. His problem is he has bent the ram on the thumb multiple times. I always...

Does anyone know how to change the controls from an older back hoe style operation to a newer style track hoe control on this 331 Bobcat excavator??????????????????????

I just recently bought this 331 and new at the time there were some hyd. problems. I think the biggest thing is someone has cut and re-wired some and not some of the wiring to the electric solenoids. They have also had both the valves out of the block that bolts to the swing motor. Any one got a...

I just recently bought this 331 and new at the time there were some hyd. problems. I think the biggest thing is someone has cut and re-wired some and not some of the wiring to the electric solenoids. They have also had both the valves out of the block that bolts to the swing motor. Any one got a...

I just recently bought this 331 and new at the time there were some hyd. problems. I think the biggest thing is someone has cut and re-wired some and not some of the wiring to the electric solenoids. They have also had both the valves out of the block that bolts to the swing motor. Any one got a...

Hi guys. I went to shut my 331 off the other day and when I shut the key off and pulled it out the engine kept running. Is that a faulty ignition switch? Finally the engine shut off after 30 minutes of messing around with different stuff. The 20amp fuse to the start circuit blew which appears to...

I was thinking about buying a bobcat 331 and was wondering if anyone could give me any input on the machine before I were to buy it. it has 2200hrs on it looks pretty well maintained little cosmetic damage but no major damage. good tracks runs and digs good but haven't operated many machines...

I noticed I had a small leak on one of the drive motors but wasn't too concerned about fixing it just yet. However, while using the excavator I must have hit a stone as it bent the cover plate on the inside of the undercarriage. I noticed it while it was on the trailer and there was a small...

I have a 2002 Bobcat 331 on demo right now. It says its a d series on the id plate. It has a cab, thumb and new tracks. The motor runs well and the hydraulics are strong as are the drive motors for the tracks. I'm just curious if there is anything specific to this model that I should take a...

I have a bobcat 331 excavator and on the left side the track just loses power sometimes, then play with the lever and works fine for a bit. Push some dirt and also has a lose of power again. I'm pretty well thinking it's the drive motor, but could it be something else? Any help would be greatly...

hello, im looking for a service manual, pdf and free. here in chile we dont have it i own a bobcat 331 regards in advance.

Hi all, Does anyone have any links to a repair manual, or procedure on how to change the main hoses that connect to the arm? Also, where would be the best place to purchase them from? Hoping that is all that needs to be done. Thanks in advance, John

I had my new-to-me Bobcat excavator (link) out this afternoon to move the pieces of a tree which came down this winter. I have the branches chipped and most of the pine needles moved away so it was time to move the hunks of tree trunk. Slinging the tree pieces below the bucket worked well...