Kubota Pto Switch Problem
Anyone have a similar problem? How did you fix it? geo. For example, on an L3940, two wires run from the seat frame to the exposed switch. I believe the electrically engaged PTO use hydraulic fluid to generate the force on the clutch pack and the pressure is a function of RPM. Anyone have a similar problem? How did you fix it? geo. It should be noted that when the PTO is off, its clutch is disengaged. We have a Kubota Diesel Tractor for taking care of our property and grooming our kart racing dirt track on occasion. Tractor PTO Not Engaging Switch or PTO? Fixed doublewide6 Repairs LLC 141K views 3 point hitch failed. If you have difficulty turning the switch, you will have to get a new one. Although it’s not a very common problem, the Kubota power takeoff (PTO) may malfunction or completely fail, leading to transmission failure. Step 3: Diagnose A Faulty PTO Switch If at any point, you do not get beeps or readings, you can repeat the test (using different multimeters if you can). 72K subscribers Subscribe 111K views 3 years ago We have a Kubota Diesel Tractor for. Check connections and retighten if necessary. Stiff Handling Some customers complained about the stiffness of the handlebar. The Fix: It’s probable that the PTO control valve has been improperly adjusted. If your Kubota z421 is not moving or goes forward, you will need to check the brakes. Problem 1: Mower Won’t Start Problem 2: Mower Starts then Dies Problem 3: Mower Won’t Move Forward or Reverse Problem 4: Mower Vibrates Problem 5: Mower Overheats Problem 6: Mower is Smoking Problem 7: Mower Has a Weak Hydrostatic Transmission Problem 8: Mower Won’t Drive Straight or Steer Correctly Problem 9: Mower is Running. The problem, the PTO switch is next to my right elbow. Problems with Kubota GR2100 (Solutions Included)>5 Most Common Problems with Kubota GR2100 (Solutions Included). Mower PTO switch hot/failing-troubleshoot clutch circuit Hillbilly Rig Repairs 2. To troubleshoot Kubota safety switch issues, it is often necessary to check both the switches and the wiring. Clutches wear out over time as you use the power take-off of your tractor. I cant use the seats right arm rest. Swap the pto relay with another identical one to see if that fixes it. 7 Common Problems with Kubota L3301 and Their Solutions. It’s because of this that the PTO is only partially working, if at all. I used the Kubota to mow with yesterday. Damage to the clutch pack is related to overloading the PTO with the task the PTO is given to power. Other issues: Safety switch and a dead or weak battery are possible. Loader issues The loader often represents an issue with small compact tractors like the Kubota L2501. Place the range shift lever into neutral and check the engine throttle lever is not put forward. If the PTO wont go on it should give error 95 on the Intellipanel, but in your case it seems like it doesnt know it is not off. PTO switch- Wont start if the PTO is engaged Seat switch- This wont prevent it from starting. Problems with Kubota L3301 and Their Solutions>7 Common Problems with Kubota L3301 and Their Solutions. Kubota Tractor Wont Start Safety Switch Trouble Shooting Racing Psychosis 2. Kubota L3200, Deere X380, Kubota RTV-X The lever itself, and the slop, probably has nothing to do with it. You may have accidentally bumped the PTO to ON when you dismounted the tractor. If it’s still no dice, then that’s a sure sign of a faulty switch. The battery connection can be loose or corroded. Lessons Learned: Troubleshooting Kubota M7060 Problems. Kubota Zero Turn Problems (Troubleshoot)>13 Common Kubota Zero Turn Problems (Troubleshoot). 6 Most Common Kubota Zero Turn Mower Problems 1. :thumbsup: On my mowing machine, If I come off of the seat with the deck engaged, the safety switch kills the engine. This commotion can arise due to lose or corroded internal cable connections, defective electrical connectors, faulty battery cells, and faulty belts. When PTO switch is at On position, the oil flows (to) PTO clutch through the PTO solenoid valve and PTO clutch is engaged. When my elbow touched the switch it would shut off. 25K views 6 years ago If you have a BX-series tractor, you know that you cant use the PTO if youre not in the seat. The most likely explanation is that a safety switch is stopping it from working. They can get weak over time due to vibration or what not, but not super common. Stale fuel or improper fuel level can also be the reason. I replaced the relay which i thought corrected the problem. I dont have any other problems, and everything appears to be running fine. Most PTOs that new are hydraulic activated. Problem 1: Mower Won’t Start Problem 2: Mower Starts then Dies Problem 3: Mower Won’t Move Forward or Reverse Problem 4: Mower Vibrates Problem 5: Mower Overheats Problem 6: Mower is Smoking Problem 7: Mower Has a Weak Hydrostatic Transmission Problem 8: Mower Won’t Drive Straight or Steer Correctly Problem 9: Mower is Running Rough and Sputters. Hence you can have a trouble-free user experience. This test can show whether the power works smoothly or poorly. If your Kubota z421 is not moving or goes forward, you will need to check the brakes. The pto shifter jams and stays in the on position when I switch it off. Practical steps to bypass the PTO safety switch Step 1: Switch Off The Engine: The first step is to turn your engine off and make sure you’re putting on your glove. 5 Most Common Problems with Kubota GR2100 (Solutions Included). And when they do, it may lead to the. Lawn Tractor Mower Deck Wont Engage - FIX PTO Clutch Problem - MUST SEE VIDEO!In this video I show and repair a common issue that will cause your PTO switch. I also found that removing the front bucket makes a big difference in the ride. It recently quit working and we started. When PTO switch is at Off position, the oil flow is stopped by PTO solenoid valve. Problems with Kubota B2400 (Solutions Included)>6 Common Problems with Kubota B2400 (Solutions Included). PTO Switch Safety Problem. Back to top john in la Tractor. Kubota electronic PTO switch. The problem, the PTO switch is next to my right elbow. PTO wont disengage?? this is the problem and the super quick solution, Why Your PTO Wont Go on the Tractor and the Basics of PTO Shafts Tractor Mike 21K views 8 months ago Kubota Owners. Kubota Zero Turn Mower Problems and Solutions>13 Kubota Zero Turn Mower Problems and Solutions. What To Do If Your PTO Won’t Engage (Answered). Kubota Tractor Wont Start Safety Switch Trouble Shooting>Kubota Tractor Wont Start Safety Switch Trouble Shooting. abandoned Kubota pt 2 Kubota ZD331 Spring Maintenance. If at any point, you do not get beeps or readings, you can repeat the test (using different multimeters if you can). Safety Switch Trouble Shooting Racing Psychosis 2. The most likely explanation is that a safety switch is stopping it from working. Okay, so we have two photos of the PTO control assembly, looking from the back of the tractor just behind the. And then try moving it another so it can engage properly. I have a 2011 Kubota L5740. That big orange vertical bar is the PTO control lever; its currently in the OFF position. 13 Common Kubota Zero Turn Problems (Troubleshoot). Kubota Tractor PTO Problems Tip: This problem occurs when a bush hog, for instance, is shut off when the power is cut from the PTO. Tractor PTO Not Engaging Switch or PTO? Fixed doublewide6 Repairs LLC 141K views 3 point hitch failed. Rear PTO Circuit Diagnosis Test Conditions: • Key switch in run position, engine off • Rear PTO off • Mid PTO off • Operator off seat Test/Check Point Normal If Not Normal 1. On an L3200 HST, one owner with a starting issue rocked the foot pedal back and forth. The tractor wont start if the PTO lever is engaged. Kubota Tractor Wont Start Safety Switch Trouble Shooting. There appears to be some options as far as pto speeds and econo mode so further describing your tractor would help. You may have accidentally bumped the PTO to ON when you dismounted the tractor. When this happens the tractor will not start. If the relay is not firing, then at least it is likely your problem is external and not inside the transmission. Okay, so we have two photos of the PTO control assembly, looking from the back of the tractor just behind the seat. 7 Most Common Kubota L2501 Problems. The most likely explanation is that a safety switch is stopping it from working. Step 3: Diagnose A Faulty PTO Switch. To make the push button job easier, you’ll need to place some of the wires under the seat. The PTO would shut off and I wouldnt discover it until I turned around and found a strip of grass uncut. To troubleshoot Kubota safety switch issues, it is often necessary to check both the switches and the wiring. Kubota Tractor PTO Problems Tip: This problem occurs when a bush hog, for instance, is shut off when the power is cut from the PTO. 1 day ago · My L 3010 Kubota has been having problems with the glow plugs. KUBOTA Tractor PTO Not Disengaging !!! Problem and Super Easy Fix. According to most Kubota B2400 users experience, several troubleshooting issues such as engine starting failure or hard start, stall while operating, abruptly shutting off after starting, and overheating sometimes occur with their Kubota 2400 tractors. How To Bypass Safety Switch On Kubota Tractor (Practical Tips). The PTO (engage/disengage) is in the disengage slot, I have double checked the contacts to make sure their touching when disengaged, i even separated the two small wires leading to the PTO lever and it still continues to turn. The dealer told me if I disconnect the wire to pto shifter it will start. Kubota GR 2110 PTO problem Dad life 10 subscribers Subscribe 7 11K views 6 years ago Bought this tractor used and even after adjustment of the PTO linkage, still seem to get some. 6 Common Problems with Kubota B2400 (Solutions Included). On my B26, I bypassed both the presence and direction switches. PTO switch- Wont start if the PTO is engaged Seat switch- This wont prevent it from starting. Kubota hydraulic cylinder rebuild Kevin Robinson 56K views 2 years ago #77 kubota L2501 PTO wont disengage--easy fix. Using the lower link hole will cause the back of. Step 2: Find The Tractor’s PTO Switch: This is situated near the seat at the rear of your engine. Here’s what we recommend; Clogged filters: Replace the air filter or unclog the fuel filter. Yesterday glow plugs would not come on or at least the indicator on the dash didnt show they were on. I dont have any other problems, and everything appears to be running fine. 13 Kubota Zero Turn Mower Problems and Solutions. The dealer told me if I disconnect the wire to pto shifter it will start. This can easily prevent the machine from moving. You will need to test the control using your ohmmeter to ensure the switch’s fault. A damaged clutch pack is another common reason for the PTO problem in Kubota tractors. It has the electronic PTO switch but i cant find a clear answer to how to properly engage the pto. I had to slightly play with the pedal while the key was on the start position to find the sweet spot to get it to start. 1 day ago · Re: Kubota glow plugs problem. A Kubota zero-turn smokes when the air filter is plugged, the engine oil is not correct, or a bad engine gasket has caused oil to seep onto a hot surface like the muffler. Battery Problem. Kubota Tractor Ignition Switch Repair. When you move the lever, it operates a cable that moves a shift arm on the transmission case, which in turn actuates a dog clutch on the PTO countershaft to lock it in and engage the PTO output. You will need to test the control using your ohmmeter to ensure the switch’s fault. Step 3: Diagnose A Faulty PTO Switch If at any point, you do not get beeps or readings, you can repeat the test (using different multimeters if you can). PTO Safety Switch Bypass. One of the most common kubota zd331 electrical problems is not turning off the key after mowing. What link is used will have no affect on the PTO. Step 1: Switch Off The Engine: The first step is to turn your engine off and make sure youre putting on your glove. The most specific cause for this problem is a faulty start switch. According to most Kubota B2400 users experience, several troubleshooting issues such as engine starting failure or hard start, stall while operating, abruptly shutting off after starting, and overheating sometimes occur with their Kubota 2400 tractors. The tractor wont start if the PTO lever is engaged. I am not very familiar with your size tractor but is sounds like a similar problem average mechanic takes 4-5 hours on a 2660 to replace PTO. I engaged the PTO and turned the key to start for 30 seconds. Low fuel level, wrong fuel, or bad fuel: Replenish the fuel tank or change the fuel. Problem 1: Mower Won’t Start Problem 2: Mower Starts then Dies Problem 3: Mower Won’t Move Forward or Reverse Problem 4: Mower Vibrates Problem 5: Mower Overheats Problem 6: Mower is Smoking Problem 7: Mower Has a Weak Hydrostatic Transmission Problem 8: Mower Won’t Drive Straight or Steer Correctly Problem 9: Mower is Running Rough and Sputters. Rear PTO Circuit Diagnosis Test Conditions: • Key switch in run position, engine off • Rear PTO off • Mid PTO off • Operator off seat Test/Check Point Normal If Not Normal 1. Step 3: Diagnose A Faulty PTO Switch. When you manually shift it one way, the mechanism should be freed and can be turned effortlessly. Dave R Russell King Well-known member Equipment. Kubota L4060hstc, formerly L3200hst Ya, fuses rarely blow for no reason. You can also try to turn the PTO shaft by hand. If it blows a second time, then I start diagnosing. Lubricating every component might also help run the PTO smoothly. But with a little bit of knowledge, some patience, and a healthy dose of determination, he was able to troubleshoot and resolve each issue he encountered. Now take a look at the bolt and washer toward the lower center of the photos. Mower PTO switch hot/failing. Most PTOs that new are hydraulic activated. 222 47K views 1 year ago Was asked to take a look at this problem and was solved by installing Starter Relay Kit That he bought from john deer but will work on any tractor I would think. Kubota has made changes to the PTO clutch/brake assembly subsequently to SN 62438 (edit: typo). 72K subscribers Subscribe 111K views 3 years ago We have a Kubota Diesel Tractor for taking care of our. Mower PTO switch hot/failing-troubleshoot clutch circuit Hillbilly Rig Repairs 2. However, its brake is still engaged. Lawn Tractor Mower Deck Wont Engage. 6 Most Common Kubota Zero Turn Mower Problems 1. Practical steps to bypass the PTO safety switch. Step 2: Find The Tractor’s PTO Switch: This is situated near. Kubota 3710 will not start. Kubota Tractor Wont Start Safety Switch Trouble Shooting Racing Psychosis 2. KUBOTA Tractor PTO Not Disengaging !!! Problem and Super …. Like other utility equipment or vehicles, battery trouble or failure can sometimes occur with the Kubota B2400 tractors. Replace the battery when it won’t hold a charge. Kubota L2800 HST, Kubota Z781KWTi If it is like the L2800 which according to the diagram it is, then it is adjustable. Loader Doesn’t Get Locked Properly While putting the loader back on, one side may keep popping out when another side is perfectly fine. Kubota HST safety switch problem. PTO Won’t Engage (Answered)>What To Do If Your PTO Won’t Engage (Answered). The only issue I had on mine is the HST pedal switch. When my elbow touched the switch it would shut off. Dont know what your tractor is supposed to do. The pto shifter jams and stays in the on position when I switch it off. 7 Most Common Kubota z421 Problems & Troubleshooting. Although it’s not a very common problem, the Kubota power takeoff (PTO) may malfunction or completely fail, leading to transmission failure. Rewire the switch or replace it. I disassembled and repaired the ignition switch on my Kubota tractor. Kubota Tractor PTO Problems Tip: This problem occurs when a bush hog, for instance, is shut off when the power is cut from the PTO. Problem 1: Mower Wont Start Problem 2: Mower Starts then Dies Problem 3: Mower Wont Move Forward or Reverse Problem 4: Mower Vibrates Problem 5: Mower Overheats Problem 6: Mower is Smoking Problem 7: Mower Has a Weak Hydrostatic Transmission Problem 8: Mower Wont Drive Straight or Steer Correctly Problem 9: Mower is Running Rough and Sputters. The blades continue to turn because of their weight. Kubota GR 2110 PTO problem Dad life 10 subscribers Subscribe 7 11K views 6 years ago Bought this tractor used and even after adjustment of the PTO linkage, still seem to get some. At first they would come on intermittently then not at all. The most specific cause for this problem is a faulty start switch. It should be noted that when the PTO is off, its clutch is disengaged. Kubota Tractor PTO Problems. Lots of senior citizens find it impossible. Last time I had to load on a trailer using a come along by hand to take it to the dealer. Kubota GR 2110 PTO problem Dad life 10 subscribers Subscribe 7 11K views 6 years ago Bought this tractor used and even after adjustment of the PTO linkage, still seem to get some. Place the range shift lever into neutral and check the engine throttle lever is not put forward. Back to top john in la Tractor Guru. Repair parts for tractors prior to the SN break result in an order of a service pack PTO clutch assembly, without detail of changes made therein. M9540/9960 PTO Brake Problems. abandoned Kubota pt 2 Kubota ZD331 Spring Maintenance Tristar Diggin. It should be noted that when the. Kubota Tractor PTO Problems Tip: This problem occurs when a bush hog, for instance, is shut off when the power is cut from the PTO. must watch for any kubota with this style lever. Kubota L2800 HST, Kubota Z781KWTi If it is like the L2800 which according to the diagram it is, then it is adjustable. The most specific cause for this problem is a faulty start switch. 25K views 6 years ago If you have a BX-series tractor, you know that you cant use the PTO if youre not in the seat. Aug 17, 2020 / Help with PTO Problem -- Switch? L5740 #6. Kubota hydraulic cylinder rebuild Kevin Robinson 56K views 2 years ago #77 kubota L2501 PTO wont disengage--easy fix. Bad clutch: Replace the clutch. If the PTO on your Kubota tractor is not engaging, there is a high likelihood that the PTO control valve is faulty or its adjustment is not made correctly. (Or the seat is full of rocks) Rather than play with the wiring and defeat. Fuses are good, PTO switch is good, forward, neutral reverse interlock and ignition switch fine read more. Raise the cutter, drive over some heavy brush engage the PTO, push in the clutch, lower the cutter. I disassembled and repaired the ignition switch on my Kubota tractor. Practical steps to bypass the PTO safety switch Step 1: Switch Off The Engine: The first step is to turn your engine off and make sure you’re putting on your. Weak battery: Test the battery and place it on a charger if the reading is less than 12. Swap the pto relay with another identical one to see if that fixes it. The dealer told me if I disconnect the wire to pto shifter it will start. KUBOTA Tractor PTO Not Disengaging !!! Problem …. Kubota L4060hstc, formerly L3200hst Ya, fuses rarely blow for no reason. After troubleshooting the PTO, you should remove dirt and debris from the shaft if that’s what’s causing the issue. Problem 1: Mower Won’t Start Problem 2: Mower Starts then Dies Problem 3: Mower Won’t Move Forward or Reverse Problem 4: Mower Vibrates Problem 5: Mower. When you can’t find the cause of the smoke, you may have internal engine issues like a worn piston ring or a burnt valve. What link is used will have no affect on the PTO. Step 1: Switch Off The Engine: The first step is to turn your engine off and make sure you’re putting on your glove. Please subscribe !! PTO wont disengage?? this is the problem and the super quick solution, Contact info_____Arizona High Desert Home. Kubota Tractor Safety Switch Locations. 222 47K views 1 year ago Was asked to take a look at this problem and was solved by installing Starter Relay Kit That he bought from john deer but will work on any tractor I would think. 13 Kubota Zero Turn Problems (Troubleshoot). After troubleshooting the PTO, you should remove dirt and debris from the shaft if that’s what’s causing the issue. There seem to be two main reasons causing that trouble. I am trying to locate the pto safety switch on my Kubota…. Practical steps to bypass the PTO safety switch Step 1: Switch Off The Engine: The first step is to turn your engine off and make sure you’re putting on your glove. The Fix: It’s probable that the PTO control valve has been improperly adjusted. As a bonus I also included some photos of a similar repair I did on my starter soleno. Lots of senior citizens find it impossible to operate. 4 Ways To Fix Kubota Tractor PTO Not Engaging. Apparently, this is a known issue. Daves journey with his Kubota M7060 taught him a valuable lesson: even the best machines can encounter problems. What link is used will have no affect on the PTO. Seat switch Battery voltage Check F5 fuse. The brake plate tab and PTO clutch holder suffer wear. On a manual engagement clutch, replace a worn clutch cable, lever, springs, and linkages. I believe the electrically engaged PTO use hydraulic fluid to generate the force on the clutch pack and the pressure is a function of RPM. PTO switch- Wont start if the PTO is engaged Seat switch- This wont prevent it from starting. For example, on an L3940, two wires run from the seat frame to the exposed switch. And when they do, it may lead to the PTO problem, and you will have to replace it to make the PTO functional again. The brake plate tab and PTO clutch holder suffer wear. I believe the electrically engaged PTO use hydraulic fluid to generate the force on the clutch pack and the pressure is a function of RPM. Problem with Kubotas PTO. 2014 Kubota M6060 PTO Issues. Step 2: Find The Tractors PTO Switch: This is situated near the seat at the rear of your engine. Kubota BX2380 Problems And Complaints: Reasons With Quick Fixes. Using the lower link hole will cause the back of the mower to raise a bit higher when lifting and allow the back of the mower to drop further into a low spot when mowing. Kubota z421 Problems & Troubleshooting>7 Most Common Kubota z421 Problems & Troubleshooting. The location of the safety switches is clearly indicated in the handbook. It will kill the motor if no weight in the seat and hydro pedal is pushed. Move the throttle half or full impulse. There is no external adjustment. Kubota B2620 safety switch problem. It should stop spinning quickly. The operating manual does say clearly and the L series brochure says that you can simply turn a switch to engage and pto. Go to the left side of the tractor and look up under the dash by the key switch and you will see the safety switch. Kubota M7060 Problems: A Tale of Lawn Mower Woes. Mid PTO switch Battery voltage Check 562A, 562F, 562G and 562H Red wires and connections. PTO wont disengage?? this is the problem and the super quick solution, Why Your PTO Wont Go on the Tractor and the Basics of PTO Shafts Tractor Mike 21K views 8 months ago Kubota Owners. It’s because of this that the PTO is only partially working, if at all. Kubota Tractor PTO Problems – How to Engage PTO. Kubota Tractor Ignition Switch Repair Tall-Pines Stuff 440 subscribers Subscribe 26K views 2 years ago STONEY LAKE I disassembled and repaired the ignition switch on. in reply to DaveBN, 05-04-2023 06:19:12 Steve, my Kubota is different than your tractor but I did essentially the same thing. It acts like a safety interlock issue like trying to start it while in gear. Also, another set of wires run into the seat bottom. Bad PTO switch: Replace the PTO switch. To troubleshoot Kubota safety switch issues, it is often necessary to check both the switches and the wiring. If you have difficulty turning the. In this case, you can get a push button in your mower for starting and a pull wire for turning off or killing. PTO not working: The safety switch is preventing operation. 45K subscribers Subscribe 359K views 5 years ago Do your mower blades fail to engage when you pull the PTO. The pto shifter jams and stays in the on position when I switch it off. Practical steps to bypass the PTO safety switch Step 1: Switch Off The Engine: The first step is to turn your engine off and make sure you’re putting on your glove. The problem, the PTO switch is next to my right elbow. To illustrate, Ill show you two photos for comparison. If using the PTO at RPMS under say 2,200 or so, the pressure is reduced and clamp pressure on the clutches is less. Switch On Kubota Tractor (Practical Tips)>How To Bypass Safety Switch On Kubota Tractor (Practical Tips). Kubota GR 2110 PTO problem. Internally on the tractors that I have worked on the PTO consist of a clutch pack that is replaceable. The PTO (engage/disengage) is in the disengage slot, I have double checked the contacts to make sure their touching when disengaged, i even separated the two small wires leading to the PTO lever and it still continues to turn. That being said I usually just replace the fuse & make sure I have spares on hand. This is the second time in a month. Sometimes, you might want to check whether the parking brake is engaged. Raise the cutter, drive over some heavy brush engage the PTO, push in the clutch, lower the cutter. Kubota L3901 PTO Lever Is OFF, Tractor Thinks PTO Is ON (and Sometimes. It will determine the amount of lift and drop on the back of the mower. The pto shifter jams and stays in the on position when I switch it off. A control valve is a key component of a tractor PTO, and it must be in good condition for PTO’s optimal performance. Ignition system issues: Clean or replace the ignition plug (spark plug). The following are a few ways to address faulty or malfunctioned PTOs on a Kubota zero-turn unit. One of the most common kubota zd331 electrical problems is not turning off the key after mowing. Kubota Pto Switch ProblemLawn Tractor Mower Deck Wont Engage - FIX PTO Clutch Problem - MUST SEE VIDEO! In this video I show and repair a common issue that will cause your PTO switch to not work on. I have replaced a lot of pto clutching rings on 2360 and 2660 kubotas because of people using them to run 4-5 ft garden tillers and bushhogs with no slip clutch. You must release the brakes by pressing their pedal and increasing the drive speed simultaneously. KUBOTA Tractor PTO Not Disengaging !!! Problem and. 6 Most Common Problems with Kubota Zero Turn Mower. PTO Safety Switch Bypass. Kubota L3400DT PTO clutch operation problem. There is a switch on the PTO lever also. A damaged clutch pack is another common reason for the PTO problem in Kubota tractors. PTO wont disengage?? this is the problem and the super quick solution, Why Your PTO Wont Go on the Tractor and the Basics of PTO Shafts Tractor Mike 21K views 8 months ago Kubota Owners. If using the PTO at RPMS. L4060 PTO problem power takeoff. Kubota Tractor Wont Start. Either the manufacturing bots are tightening the bolts too much or they are not lubricated enough.