Tilt cylinders are essential hydraulic parts for many Clark forklift models. They are hydraulic devices that require precise pressure control of the hydraulic liquid to operate properly. Despite their robustness, they rely on a series of flexible seals to carry out their tasks properly. Seal kits help these devices properly control and stabilize their loads. But, unlike the rest of the cylinder's elements, they tend to deteriorate more frequently. That's why replacing the seal when they can no longer perform their task is an essential maintenance practice. Judging when it is the right time to replace a Clark Forklift tilt cylinder seal kit can make a massive difference in cost savings by avoiding unwanted repairs.
What Role does a Clark Forklift Tilt Cylinder Seal Kit Play?
Clark forklift tilt cylinders are double-acting hydraulic cylinders. This means they can push and pull their loads by hydraulic action, depending on the operator's needs. Being hydraulic cylinders, they need precise control over the hydraulic fluid, so avoiding leaks is crucial. If there is a leak, the internal pressure of the liquid on the tilt cylinder will be dropped, and so will the tilt cylinders' load handle capacity. Plus, if too much fluid leaks out, it will reduce how well the piston moves due to the friction between the parts.
In this video, you can easily visualize how vital seals are for the proper functioning of a hydraulic cylinder:
Another important job that a Clark forklift tilt cylinder seal kit does is to stop dirt and dust from getting into the system. If dirt gets into the hydraulic system, the forklift tilt cylinder will break down faster, as will major hydraulic parts like the hydraulic pump.
Which Types of Seals Can We Find in a Clark Forklift Tilt Cylinder?
The seals inside a Clark lift truck tilt cylinder can be divided into two main categories: dynamic and static. Dynamic seals are used between parts in relative motion, as it happens between the piston and barrel of a hydraulic cylinder. On the other hand, static seals are used between fixed components. In a Clark forklift tilt cylinder, static seals are typically employed between the piston and the piston rod and between the head and cylinder barrel.
Piston Seals. They function as a pressure barrier and prevent fluid from passing from the piston. This seal is essential to maintain a stable position on the piston when it rests and, at the same time, allows control of its movement.
Rod Seals. They function as a pressure barrier and maintain the operating fluid inside the cylinder. This seal regulates a fluid film, which is extended throughout the piston rod surface. This is important to prevent rod corrosion, lubricate the wiper seal, and lubricate the rod seal itself.
Buffer Seals. They serve as pressure regulators when the pressure rises too high. They improve rod seal performance by attenuating the fluctuations in system pressure. Also, they act as a shield against contaminants that may damage the rod seal.
Wiper Seals. Wiper seals are important due to their ability to prevent contaminants from entering the hydraulic system and the internal assembly of the cylinder.
Guide Rings. They are one of the most critical elements of a Clark forklift tilt cylinder seal kit. Guide rings avoid metal-to-metal contact between cylinder components by holding the piston and rod in a centered position.
What are the Most Common Failures of a Clark Forklift Tilt Cylinder Seal Kit?
Eventually, any Clark forklift tilt cylinder seal kit will fail. This happens because of daily wear and tear, extreme heat, improper installation, and contamination. In most cases, replacing the seals before they actually fail is a good idea. However, if you don't have a proper maintenance schedule, you need to learn how to judge when one or more tilt cylinder seals need to be replaced. To help you with this task, we will summarize below the most common faults that can be found in deteriorated seals.
Hardening. Hydraulic seals harden when exposed to high temperatures. As seals get harder, they tend to crack and lose elasticity, leading to seal failure due to rupture.
Wear. Due to insufficient lubrication or excessive load, wear on one of the seal faces can cause considerable damage.
Scarring. Improper installation can cause cuts or dents in the dynamic lip of the seal, affecting the efficiency of the hydraulic seal.
Fracture. Fractures usually result from burning, splitting, long cracks, and a complete rupture of the dynamic side of the seal. This is due to excessive back pressure and high-pressure spikes/knocks.
How to Replace a Clark Forklift Tilt Cylinder Seal Kit
If you want to replace a new set of Clark forklift tilt cylinder seals, it is essential to ensure that no contaminants remain in the hydraulic system. For this, it is critical to completely clean both the external surface of the cylinder and the area where the seals will be replaced. To take apart the tilt cylinder, you need the right tools. Replacing the seals is a simple task, but you must be careful not to damage any of the internal elements of the cylinder.
Once you remove the tilt cylinder rod and the deteriorated seals, you must look for any possible signs of damage. Then Clean the internal parts and Install the new seals in the appropriate position. Remember that each element of the seal kit plays a specific role within it, so you must avoid confusing their location at all costs. Install the new seals and reassemble the cylinder. Finally, perform a hydraulic test before returning the lift truck to service.
This next video shows the right way to remove the seals from a hydraulic cylinder:
Get Your New Clark Forklift Tilt Cylinder Seal Kit at Lift Parts Warehouse
To ensure the smooth operation of your Clark forklift's tilt cylinders, you must use only the best quality seals. And there's no better place to get them than Lift Parts Warehouse. Don't let a couple of deteriorated seals compromise the performance of your Clark forklift. In our online catalog, you will find a huge selection of seal kits to guarantee the correct operation of many Clark tilt cylinder models, so you can be sure that you can find the perfect one for your vehicle.
Lift Part Warehouse is, without a doubt, your best option when it comes to finding a new spare replacement for your Clark forklift. With our experienced staff to help, you will get the right seal kit to cover your needs. We strive every day to offer our customers the widest range of purchases possible; that's why in our store, you can find both OEM and aftermarket replacements.
We only sell high-quality products. To prove it, we offer a one-year guarantee on each product. Our prices are highly competitive, so everyone can get the spare parts to keep their material handling vehicles running well. If you want to know more about price policy, we invite you to click here.
We put at your disposal an excellent shipping service that will deliver your order in a few days. So don't let this opportunity pass you by; whether you're looking for a new seal kit for on-time maintenance or just want to cover your back, Lift Part Warehouse has you covered.
Seal and guide rings are important parts for the proper function of a Clark forklift tilt cylinder. They help keep the hydraulic cylinder's internal pressure stable and stop hydraulic fluid from leaking out. They also help to keep contaminants out of the hydraulic system. Most are made of rubber materials, which means they can be affected by high temperatures and wear out over time. That is why it is important to replace them from time to time to extend the lifespan of your tilt cylinders. If you need a new kit of seals for your Clark lift truck's tilt cylinders, don't hesitate to contact Lift Parts Warehouse services. We assure you that our seal kit will make your lift truck perform at its best.