This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Check wiring to down-valve, and solenoid in the valve. The solution is to inspect the control valve and clean it up to ensure grease buildup isnt jamming the control valve. Check the turntable base rollers for proper alignment and possible bearing damage. If the turntable was provided with detents, the detent bar may be set too tight. Clean suction filter as described in periodic maintenance. So what was going on was extra paint got onto the release button and when it was pressed in the paint cause the button to bind up and stick inside. If motor hums but does not turn, check motor wiring and line fuses. Check by measuring voltage at motor terminals, or as near as possible, while pump is running under load. As a safety measure, many standing desks have a collision detection feature that prevents the desk from hitting another object. :ho1G"! There may be air in the hydraulic system. Check for oil shortage in the reservoir. Certain page elements may have been deliberately hidden. To fix this, just remove some of the weight off your desk. If the hydraulic lift is stuck in the up position, there are high chances that the control valve has been jammed. The desk just becomes stuck. There may be roller damage. Then, press the up button for a few seconds followed by the down button; listen carefully. I did the whole remove the fill plug purge thing that was listed in the manual and I filled the ram up with extra fluid until it ran out of the fill hole. If supplied, remove solid plug from tank and insert vent plug. Did you remove the big hex nut that the release button is in the middle of and get into the whole valve assembly that I see an exploded diagram of in the manual or did you do something with it still assembled? Weve worked with some of the biggest brands around the world. Add oil as necessary (See the Routine Maintenance section). Tighten as needed. Check while standing near (but NOT on) the lift carriage and correct as necessary once carriage has been blocked in place. Failure to observe wiring diagram on nameplate for proper voltage connections. The load may exceed the nameplate capacity and exceed the horsepower ratings for the drive train. Press and hold the button again for 10 seconds. Reverse two motor electrical leads. Now, the motors are out of sync and your desk is uneven. The oil viscosity is not suited for the environmental conditions. I called the company and they told me where to put more fluid in (power steering fluid). The hydraulic cylinder rod seal may be leaking. Check with the lift at a lower level on stops. Inadequate or incorrect wiring can starve motor when source voltage is ample. Good luck, and store those tables all the way down at the end of each night if you weren't already! Check for low oil in reservoir. (See Oil Requirements in the Routine Maintenance section.). I'm pretty sure I just pulled out the valve (J37 in pic) and pushed it back in. Petperennials.com Direct to Client Pet Loss Gifts & Service. Do not confuse spongy or jerky operation with small surges that may occur when operating on rough or uneven floors. The breather holes in the reservoir fill plug may be clogged. Oil in the reservoir may be low. Generally, this condition can be heard. PROBLEM SOLVED. Move the unit to a level surface or install the optional adjusting feet to level base frame. (Mechanical 4 Post VRC) The gear reducer may be binding from oil starvation. Make sure that each roller tube is perpendicular to the base plate (it could have been bent slightly during shipping/handling). Air contamination of hydraulic systems can create severe issues, and stuck lift is one of them. Then, press DOWN. Box 1380 |Portland, ME 04104-1380Toll-Free:800-743-1000|TEL:207-878-0700|FAX:207-797-4734| Site Map|. Hi Mg81 40,650 You will need to provide your email, fill out a form, and a confirmation email will be sent to you. It was in really tight, I had to grab the button tightly in the jaws of a vice and wiggle/turn with a wrench the whole valve assemble to get it to come free. Then, depress the DOWN, Once the tilter is in the fully lowered position, bleed the air from the hydraulic system by depressing the DOWN button. The voltage at the motor terminals may be too low to run the pump with the existing load. This is something thats referred to as the Duty Cycle. This is normal for large volume (air bag) air powered systems due to the compressible nature of air, (especially at raised elevations) between fully lowered and fully raised positions. When lift is down, 3/4" from top. Each tube should be perpendicular to the center pin, or the platform will roll across the roller instead of rolling over it. Running against relief pressure unnecessarily due to over loaded lift or hitting physical stops. (See the Specifications section. (See the Routine Maintenance section.). The load may exceed the rating. height to 40. But I am not sure I don't know how far it is supposed to stick out when it is in the closed, ready to lift position. The desk is saying this is too much work for me to go higher, and to protect its components, it shuts off. Remove anything from under the desk that may obstruct travel. You can use a booster to determine if the battery is the real culprit. Check valve in the pump or Detatrol may be contaminated or defective. Visit our regional partners |Europe|Asia-Pacific. Down solenoid may not be seating. The wiring may be incorrect. Your desk should automatically turn back on and begin functioning as normal. At first it would only lower very slowly. Freight Lifts Will Not Raise (Motor NOT Running or Humming). Once you locate the valve, dump all the oil from it and collect the engine fuel in a container by removing the bottom bolt. Lower lift to closed position and continue to hold DOWN button an additional 10-30 seconds to bleed air from cylinder. One or more roller tubes are not sitting vertically on the base plate. If the tilter does not lower after trying Step 2, wait approximately 10 15 minutes for the pressure in the hydraulic system to equalize. Autoquip manufactures a wide range of high quality lifting equipment made with your specific application in mind. Check the supply amperage to ensure it provides the minimum amperage needed per the vendors specifications. The push button / circuit is malfunctioning. The last solution is to check the oil level in the hydraulic reservoir and make sure the oil level is within the recommended range. Unfortunately I can't advise on how to make adjustments to this as I didn't need to make any. Relaunch of Hobby Machinist Mentoring Program. 1,848. Check the load amount. So, when the lift is stuck in the up position, you have to look for cranking noises and electric sparks because these are the common symptoms of electrical errors. REGISTRATION INFO: Registration is open. Usually, improper air balance results in air contamination in hydraulic fluid. In addition, it leads to cavitation, with which the fluid vapors and air cavities blow up because of high pressure. Oil in the reservoir may be low. A manual reset can override the cycle time resting period thats currently turned on. See the Specifications section. After I got the button free I hand tightened it into the chuck on a drill press and very carefully took the paint off with a fine cut file followed by 600 grit sandpaper to remove all of the paint to prevent future binding. Need a hand? Step 4: Check the continuity of the coil; if it isnt working, your scissor lift could be experiencing a problem with its solenoid. There are a variety of options available so you can find the one that best suits you. Moreover, inspect the fuses and switches, and if they are black, it means that they are blown up, which is why they should be replaced as well (repair is not a long-term solution). D[K4bc$#N{ ZB{xC+fyq\#d>.}!|c/F;"Xv1JRAB@qlu`|4M.M/vy&{VW/Bh0m=e/O6HH^`4cXv,awX"k8#ol64P"rYO6Le04,\LV Reduce load to within rated capacity, or follow procedure to free the jammed load (See Installation section for procedure). Do not check at the line source or while the pump is idling. I am having this problem too! (oil will not even leak out) Loosen the screw carefully toilet air out of the system. 1,558 The traverse path may be blocked with debris or other obstacle. You must log in or register to reply here. 39,550 The "O" ring keeps it in place. However, if the battery has a low charge, the lift wont be able to move properly and will be stuck. A photo of that area of a working lift table and any ideas would really be appreciated. I do believe that what you may have is a bad compression seal. Check for and remove any obstruction that may impede the rotating path of the turntable. Also, you should hire a professional to install a new battery to make sure the connections are correct. You will need to either change or delete the upper container stop to make the table go up past the current setting. var addy4c02ef33408bbe683768202dc1ce1171 = 'Info' + '@'; Check and reset. I just really don't want to tear the release valve apart if that is not the problem area. Most of Autoquips standard motors are rated for intermittent duty. I have tried to gently pry the button up (I have even tried more than gently). The solenoid coil may be incorrectly wired, burned out, not rated for the voltage, or the line voltage may be excessively low. Momentarily press the UP button, then, depress the DOWN button until the bridge is in the fully lowered position. The check valve in the pump assembly may not be seating. Voltage may be too low to run pump with existing load. The motor or pushbutton connections may have been reversed. A manual reset can override the cycle time resting period thats currently turned on. Check valve in pump assembly may not be seating. The manual lowering device may be engaged. See Figure 5 in the Installation Section to ensure that the center pin thrust washers have been installed properly. Inadequate wiring can starve the motor even when the source voltage is ample. As Liftserv mentioned 15/16" socket and the whole assemble screws right out, not much fluid came out with it, less than a teaspoon. cannot exceed 325 lbs. The Down valve may be energized by faulty wiring or stuck open. A tables control box can only go up and down so many times before it needs to rest. I think it just presses in. Given the fact that the desk has electrical components, at one some point, it's normal that you experience a hiccup. JavaScript is disabled. Check wiring to the down valvle. Sorry, the lift table is 20 minutes away so I can't take a photo to show what position mine is in. To fix this, just remove some of the weight from your desk. In addition, if some parts seem to be damaged, you need to replace them. Usually, dirt buildup impacts the performance of these components, so clean it up to prevent blockage of the air valve. You should notice that the desk dips down and slightly rises, and then stops (indicating a successful reset). But I must say if you can buy electric, buy electric. 19. Many standing desks have a collision detection feature that prevents the desk from hitting another object and causing any harm or damage. Southworth Products is part of Southworth International Group, the global leader in vertical lifting and positioning equipment. Remove solenoid and check. Load may exceed rating. Lift Wont Go Forward Or Reverse (Coil Transfer Car), Series 35 Extra Wide - Double Long Manual, Series 35 Extra Wide - Double Long Manual (Spanish), Series 35 Turntable Manual - Spanish Version. So, when youre desk stops working all of a sudden, dont panic. var prefix = 'ma' + 'il' + 'to'; WARNING! Check all pushbutton stations. When the cables become loose, the power within them becomes intermittent, meaning that sometimes the power can flow through them and sometimes it cant. Hold the DOWN button for approximately. Mine would not go down even if I would allmost jump on it. Hold the DOWN button for approximately 60. A nation does not have to be cruel to be tough. There may not be sufficient amp draw for the motor. Lower lift to closed position and continue to hold DOWN button an additional 10-30 seconds to bleed air from cylinder. You need JavaScript enabled to view it. While being in reset mode, a sit stand desk can only travel downwards. Step 2: Use a voltage meter to check whether there is any power in the motor; these, unfortunately, do not last forever and if it has failed it will be causing your problem. A door with status switch is open, or switch or interlock is malfunctioning or is out of tolerance. Make sure that the center of gravity of the load is within 10 of the center of the turntable. 66,900 Add oil as necessary. Correct as necessary. Do not remove when under pressure. Any industry that requires its workers to be hoisted high into the air (whether this is to clean windows, to stack pallets or to work above the ground) will probably make use of a scissor lift or two to achieve this. When I lift the table it goes up easily and when I let it go it drops back into position quickly and I hear fluid flowing in the ram. Remove the solenoid and check. If you hear a clicking noise, the velocity fuse is locked. Yeah, I would just take it back. The platform carriage may be binding in the guide ways. I had a floor jack like that. However, this list does share the most common causes and solutions and is a great place to start when you first notice that your desk won't move. Check for leaks or dents. Do I just unscrew the hex nut part and have a bunch of fluid and parts come out at me? Theres typically no need for a manual reset. Add specified oil as necessary. If the lift does not hold with the solenoid coil removed, replace the down valve cartridge. The gearbox may be cracked or damaged from overloading or improper loading. 334. From Scissor Lifts and Turn Tables to VRCs and Work Platforms, Autoquip has what you need. You can chew up the outside of the release button in the jaws of a vice and it won't matter, it will only look crappy. Explore our wide variety of resources to help you be successful with your lift. At Autoquip, we focus on developing and implementing the latest design, technology, and production techniques into every lift we build. For a better experience, please enable JavaScript in your browser before proceeding. Mine would lower very slowly even with a load. This typically happens for one of two reasons: the desk was temporarily unplugged and plugged back in OR the outlet lost power. No matter the application, Autoquip can build you a lift that perfectly suits your needs. While one motor may turn, the second will either remain still or turn more/less than the first motor. Some fluid might leak out. If the motors don't have a good self-locking mechanism, the motor and spindle can turn when it's supposed to maintain its height position. If no leak or damage is noticed, attempt to pressurize lifting cylinder by pressing UP button on controller for a few seconds. (sorry if there is misspellings, couple of beers mine too. i think a screw was loose under the foot bar, preventing it I wish the design would be better. Please consider a donation to Pinside and get anext to your username to show for it! Replace as necessary. There may be an obstruction in the path of the mounting platform. Do not remove the bleed screw! 10. Rotates products up to 360 degrees in one or both directions. If you don't receive it check your spam folder before contacting us. Ensure that the down valve itself is shifting and allowing oil to go back to the tank. fix it then go through the hassle to return it. The turntable platform may have hit an obstruction. Most of Autoquips standard motors are rated for intermittent duty (two minute run times with two minute rests). WARNING!!! 9y I just don't want to be chasing the wrong thing and I am hoping a photo will let me know if something is obviously wrong. If youve checked off all 7 boxes, youve exhausted every solution you can do on your own. Make sure all electrical connections are intact and check for shorts. The most common issue is that the electric sit stand desk stops going up or going down. One or more roller tubes are misaligned with respect to the center pin. To get your table to move up, you must complete a manual reset on the table. Thanks. As a preventive measure, you must bleed off the air regularly as it helps streamline fluid circulation in the pump, promising uninterrupted lift performance. Solenoid coil may be incorrectly wired, burned out, not rated for the voltage, or line voltage may be excessively low. Check while standing near (but NOT on) the lift carriage and correct as necessary once carriage has been blocked in place. Check for obstruction in the line. Oil Reservoir may be low. Drain and replace oil. The tubing or hose is obstructed or broken. This list may not include every reason for why your sit stand desk won't go up or down. The cause of the tug is often due to a lack of wire management. 0 gp2On1W^M\gqCmnzS:p. Check to insure the coupling has been installed between the pump and motor. Contact the desks manufacturer and ask their support team about solutions to get your desk back in working condition. The pump may be binding from oil starvation. The pump or Deltatrol regulator is not seating. The rod that you would be hitting on the button is very skinny and you would likely damage one of the sealing surfaces inside of the valve. The voltage may be low. WARNING! Missing washers will cause the platform to dish in the center when bolted in place. This step may need to be repeated several times to fully remove air in system by raising the lift to 50% of its travel and lowering. Remove excess load. Remove solenoid coil and check. (See the Specifications section of manual.). For example, if the manufacturer states Total Lifting Capacity Base Only: 325 lbs, that means whatever you put on top of the base (worksurface, monitors, keyboard tray, etc.) This could cause the lift to drop rapidly, resulting in damage to the lift or cause personal injury. The non-rotation devise may have broken or vibrated loose. The retaining bolt should be backed off and retightened using no more than 80 ft. lbs of torque. Check all pushbutton stations. Immediately release UP button and press DOWN button. document.getElementById('cloak4c02ef33408bbe683768202dc1ce1171').innerHTML = ''; Yellow Poplar vs Tulip Poplar- Which Is Better? The Duty cycle tells us the maximum amount of time the control box can be active (moving the desk up or down) and how long it needs to be inactive (in its rest stage). To help prevent this from happening again, research the lifting capacity of your standing desk. Try pushing it in instead of pulling it out. Please note that these are general instructions that work to reset most sit stand desks. From the looks of it I am guessing it is stuck into the ram. I should have done this, but like you its a drive and I would rather See the images below to see how to better identify if a cable is securely inserted. Check for pinched or broken tubing or hose. When under load, the table will drop rather slowly and smoothly. Unfortunately, there may be a problem with the desk's internal components. If the control box reaches the maximum amount of active time, it will turn on a mandatory rest period to prevent overheating. to get it in the hole. Generally, this condition can be heard. 2.) 21. On the other hand, if you dont know where the control valve is located, you can consult the manual to locate the valve. Hi, I have an grooming table in my W'n'T that has stuck in the highest position, I've tried pumping the peddle and putting all my weight on it to no avail. Repair or replace. Where pipe is used, check for obstruction in the line. The pump should be able to be rotated by hand. Be sure to first read the manufacturers reset procedure before starting. Check to ensure nothing is blocking reflector or photoeyes. Replace if necessary. If the machine is completely silent, then there is no power whatsoever running through it. We understand industry-specific challenges better than anyone. Rotation on the 3-phase motor may be reversed. Safety Reminder: When in reset mode, programmed container stops and anti-collision features are turned off. (just pull it straight out) Here is a photo of my table valve release button. Pump can be rotated by hand unless seized. But barring that and anyone elses recommendations I guess I will remove J34 and let the mess of springs, washers, ball bearing and fluid go all over the place and hope I can get J37 to pop up free. This could cause the lift to drop rapidly, resulting in damage to the lift or cause personal injury. You will need to either change or delete the lower container stop to make the table go up past the current setting. If your desk is trying to support too much weight, an overload can occur. As a result, the hydraulic system will fail to operate properly. Replace the pump assembly. Often times, the table will turn back on once its had a break. Check that 12 volts is being reached at the motor and motor relay. Every height adjustable table has a maximum lifting capacity. The pump can be irreparably damaged by oil starvation and may have to be replaced. Pump may be seized if motor is humming or blowing fuses on overload protection devices. If let completely down it would not raise. Check connections. Drain and replace the oil. 11y Check for cracks in the housing. From manuals to instructional videos, a glossary of terms to an FAQ of your burning questions, we have all the resources you need to be successful with your lift. Is there any leaking fluid under the table? The duty cycle for both of them are 10%, 2 minutes on and 18 minutes off. It sounds like the relief valve isn't working properly, (the lever you push to make the table go down.) The Motor brake may be seized if the motor is humming, blowing fuses, or overloads. (Answered), 3 Reasons For Hydrangea Tree Not Leafing Out. The center pin-retaining bolt has been over tightened. Please sign in to reply to this topic. Remove the down valve and ensure that it is not being energized when the up is pushed. Your desk may turn on before 18 minutes has gone by. The load may exceed the rating. First, just wait and give your standing desk about 18 minutes of rest (the average amount of time required by most control boxes). The pump may be seized if motor is humming or blowing fuses on overload protection devices. When the fuel and oil are cleared, clean the unit with kerosene oil, and add the fuel and oil to their respective chambers again. Once lift is fully lowered, hold DOWN button for approximately 60seconds to bleed air from system. Mine did this too, I loosened the cable completely and worked backwards until both raise and lower worked. An upper container stop is a setting a user creates to reprogram the desks maximum height. However, we suggest that you rinse the unit two to three times to ensure proper cleaning. This step may need to be repeated. Check to see if there is hydraulic oil running down the outside of the cylinder barrels at the rod end. Check and/or reestablish chain tension, or check & repair or adjust sensing switch(es) as required per Installation section. Check the solenoid in the valve with a volt meter. Check and repair. Drain and replace the oil. If your desk is trying to support too much weight, an overload can occur. Remove the turntable and replace the bearings. If you don't find what you need, don't worry, just give us a call, 800-743-1000. When lift is raised as far as possible, oil level should be 3/4" from bottom of tank. The emergency stop button may be depressed or jammed. Do not attempt to remove the velocity fuse. Human kindness has never weakened the stamina or softened the fiber of a free people. Click on the product families below to learn more about the cause of the issue and how it can be solved. The Freight Lift Does Not Raise Completely to the Upper Level (Press Emergency Stop Button to Stop Motor.). Freight Lift Will Not Raise (Motor IS Running or Humming). Inadequate wiring can starve the motor even when the source voltage is ample. Every height adjustable table has a maximum lifting capacity. I had a jack that did that, and found that once I redid the release stuff it worked again. Eventually I was able to return the table to get a new one, there was a bad batch of them apparently. The typical culprits are mounted shelves, cabinets, or artwork. For the best site experience please disable your AdBlocker. With more exposure to heat, the fluids will oxidize, resulting in deposits in the lifts chamber. The plunger does tend to sit higher and tight against the bracket on mine. Connect with our sales, tech support, and customer service departments today. On the contrary, if you dont know how to locate the air valves, just hire a mechanic or consult the manual. Once the desks become uneven, one of two things can happen. You need JavaScript enabled to view it. Some of the add-ons on this site are powered by. The chain may be off of a sprocket. Pm me if you need to talk and i will send you my cell. Remove the load from the tilter. No matter what your challenge is, well build the perfect lift you need. The lifting cables (or chains) may be disconnected or broken. 983. I pump it and nothing. Unplug the desk from the power outlet and wait 30 seconds. I was told this has never happened before. Inspect under the axles and remove any obstruction. Heat degradation not only impacts the up & down movement of the hydraulic lift but also overheats the chamber. Check the amperage requirements on the motor nameplate and verify with an amp meter that sufficient power draw is available. Once you take off enough weight, the desk should automatically turn back on and begin functioning as normal. Remove and clean the screen. Box 1380Portland, ME 04104-1380Toll-Free: 800-743-1000TEL: 207-878-0700FAX: 207-797-4734This email address is being protected from spambots. So I picked up the standard yellow Harbor Freight 500 lb lift table and over all it seems very nice, except I can't get the ram to lift. The counterweight sensing switch, over-travel switch, or other safety status switches/sensors may have been tripped. You all saved me on this one! A door with status switch is open, or switch or interlock is malfunctioning or is out of tolerance. As a result, the hydraulic lift will make knocking or cracking sounds while its stuck in the up position. If the bridge does not lower after trying Step 2, wait approximately 10 15 minutes for the pressure in the hydraulic system to equalize. The 3-phase motor may be single-phasing (humming). The electrical errors are caused by power surges, installation issues, and power blackouts. This will allow the table to "hyper-extend" itself past the normal range of lift or lower and then stick in its place because there isn't the correct amount of pressure inside the chamber or arm. Bleed the hydraulic lines. Check at the motor terminals while the pump is running loaded, not at the line source or while the pump is idling. Repair / replace. You may have something that's mounted above the desk that's stopping it from traveling upwards. When unit is raised as far as possible, oil level should be 3/4" from bottom of tank. The way I have fixed it is, right above where the pedal meets the cylinder there is a nut, loosen that nut til you can move it with your fingers. 12 reasons your standing desk is stuck & how to fix it, Learn how to reset your sit stand desk here. Replace pump assembly. I had that problem and a friend asked if I had a quarter or two he raised the foot bar and placed the quarters under the the bar where it meets the pad it rests on and it worked again with no problem.
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