- How to repack a hydraulic cylinder serial number#
- How to repack a hydraulic cylinder install#
- How to repack a hydraulic cylinder free#
- How to repack a hydraulic cylinder crack#
How to repack a hydraulic cylinder crack#
Some of the ops are best done horizontally, you also need a vise big enough to wrap the OD, something like a chained pipe vise works well.Įxpect a *lot more* hydraulic fluid to come out of it than you ever expected when you crack the top cap. A big 25k lift is probably going to have an 8" or 10" OD cylinder and if single-acting, probably weigh upwards of 1000 lbs. In the 3k orange job at upper left I could barely carry the triple mast cylinder to the bench. I agree you need another forklift to carefully tear down the mast and extract the lift cylinder. Ideally its in the outer channel with characters about 1/2" tall.
How to repack a hydraulic cylinder serial number#
You will undoubtedly be asked by either place the serial number of the mast which is stamped into one of the channels most likely, in some obscure place. I've used Hyster themselves or Hercules Bulldog (think its just Bulldog now) for seal kits. price wise there rule of thumb was to expect some were between 2-3x nearest stock seal cost depending on if it was a single component seal or a multi part piston seal.Īm certain there must be similar setups over there and based on the sizes i guess they would use on that lift, i can't see it being much over a few hundred dollars and probaly less if there all - at least some are std sizes! They had some kinda CAM built into a cnc lathe that auto generated the programme to cut the seals from urethane bar stock, they sent me a you tube video link but its years back in my email inbox some were. Static seals, rod seals, piston seals cup seals etc. Speeking to them they could supply pretty much any common seal profile and with any id or od - width combo required. Some custom hydrulic rod seals with a odd width - od but for a std 30mm chromed rod were only £12 each for a qty of just 2! They were of a off japanese 1980's forklift. Whats kinda draw dropping is how cheap they are. Insert the seal into the groove of the gland and release the handles while maintaining alignment.My guess seals would not be all that much, a lot of places these days over here in the uk machine custom sized hydraulic seals to order if they can't supply stock sizes that fit. Turn the handles of the tool so that the seal is twisted into the form show in the picture below.Ĥ. U-Cup installation tools are available for purchase on our website.ġ. Position your gland so that the outermost part of the cylinder is facing upward.Ģ. With the lip of the seal facing downward, position the two prongs connected to the handles inside the seal.ģ. Visually inspect that the seal is seated properly. Using your fingers, work the seal into the groove.ĥ. Insert the end of the folded seal into the groove of the cylinder gland.Ĥ. With the lip of the seal facing downward, squeeze the seal on the outer edge with your fingers into a kidney bean shape.ģ.
Position your gland so that the outermost part of the cylinder is facing upward.Ģ. U-Cup installation tools are available for purchase on our website.
How to repack a hydraulic cylinder free#
It is important that your seals and cylinder parts are free from dirt and debris before you begin. Please see the instructions below for both types of installation. Thin and flexible seals can generally be installed by hand.
How to repack a hydraulic cylinder install#
In general, you will want to use a tool to install smaller or thicker U-Cups. The method will depend on the size and shape of the U-Cup. There are several methods to install the U-Cup seal into a hydraulic cylinder.