A Slip Clutch PTO (Power Take-Off) Shaft is an essential mechanical part designed to connect a tractor or other power source to an implement or attachment. Its unique feature, the slip clutch, is ingeniously designed to allow the PTO shaft to slip or disengage upon encountering an obstruction or overload, thus protecting both the machinery and operator from potential damage or injury.

Understanding the Parts of a Slip Clutch PTO Shaft

The Slip Clutch PTO Shaft is composed of several key parts, each serving a crucial role in its overall operation:

• PTO Input shaft: Connects to the power source like a tractor or engine.
• PTO Output shaft: Connects to the implement or attachment such as a mower or tiller.
• PTO Shaft Center Housing: Contains the slip mechanism allowing the input and output shafts to rotate independently.
• PTO Shaft Slip Clutch Assembly: Provides the slip feature, consists of friction discs, pressure plates, springs, and other parts.
• PTO Shaft Safety Shield: A protective housing covering the rotating parts of the PTO shaft.
• PTO Shaft Locking Collar: Secures the output shaft to the PTO stub, enabling power transfer.
• PTO Shaft Grease fitting: Allows lubrication of the bearings and other moving parts.
• PTO Shaft Yoke: Used to connect the output shaft to the implement.
• Safety stickers and warnings: Inform operators of potential hazards and safe usage instructions of PTO shaft machinery.

Disc Mower PTO Shaft Specifications

The original equipment is a 55N Weasler with 80 degrees on the tractor side and a 50-degree CV on the discbine. The input shafts are typically 1.50″ round. This PTO shaft with slip clutch is built of sturdy steel and features 1-3/8″ 6-spline on the tractor and implement ends. It comes with a slip clutch for equipment or tractor PTO shaft protection and easy replacement. This versatile PTO shaft can be adapted to various agricultural machines models, including Hesston 1340, 1345, some CaseIH 8312, Massy Ferguson PTD 12, and New Idea 5512.

How to Install the Slip Clutch PTO Shaft to a Disc Mower?

Installing a slip clutch PTO (Power Take-Off) shaft to a disc mower is a necessary safety measure and can be accomplished in a few steps. Here is a step-by-step guide:

• Secure the Disc Mower: Park the disc mower on a flat and level surface and ensure that it is properly secured with the parking brake on.
• Connect the PTO Shaft: Connect the PTO shaft to the tractor and the disc mower. Make sure that the connections are secure and tight and that the PTO shaft length is adjusted to the correct measurement to prevent any binding or twisting.
• Install the Slip Clutch: PTO shaft slip clutches usually come pre-assembled with the necessary hardware, so follow the manufacturer’s instructions to install clutch assembly. Slip clutch assemblies consist of two metal plates, springs, and a locking collar. Attach one plate to the tractor end of the PTO shaft and the other plate to the disc mower input shaft.
• Adjust the Slip Clutch: Adjust the PTO shaft slip clutch according to the manufacturer’s recommended settings, usually indicated by the measurement of torque on the shaft or belt tension. Adjustments are usually made by tightening or loosening the springs using the adjusting bolts located on the side of the clutch frame.
• Test Run: Once everything is installed, start the engine and test the mower to ensure that it is operating correctly. Engage the PTO shaft and listen to the slip clutch as it disengages when you encounter unexpected obstructions, such as rocks or stumps.
• Inspect Periodically: Inspect the PTO shaft slip clutch periodically for wear, and replace worn parts or entire clutch assemblies when necessary.

About HZPT

HZPT is a leading manufacturer specializing in developing, manufacturing, and selling PTO shafts, industrial universal shafts, automobile drive shafts, universal joint coupling shafts, PTO universal joints, and more. Our products are highly regarded among customers in Europe, the United States, Asia, Australia, and North America. We are the top three professional OEM suppliers of many agricultural tool factories in the domestic market. HZPT PTO shaft adheres to our “QDP” principle: quality first, rapid delivery, and competitive price. We have obtained CE, TS / 16949, and ISO9001 certifications, and have systematic production equipment and a QC team to ensure our quality and delivery.

Our Products

In addition to PTO shafts, HZPT also offers a full range of products related to agricultural machinery, including agricultural gearboxes, agricultural pulleys, agricultural chains, and other agricultural machinery parts.

Explore our wide range of products and discover the benefits they bring to your farming activities. Contact us today to make an order.

Common Q&A

Here are some common questions and answers related to the slip clutch PTO shaft:

1. Q: What is the purpose of a slip clutch on a PTO shaft? A: The slip clutch in a PTO shaft serves as a protective feature that allows the shaft to disengage when it encounters an obstruction or overload, thereby preventing damage to the machinery or operator.
2. Q: How do you adjust a slip clutch on a PTO shaft? A: The slip clutch on a PTO shaft can be adjusted by tightening or loosening the springs using the adjusting bolts located on the side of the clutch frame.
3. Q: How often should you grease a PTO shaft? A: Generally, a PTO shaft should be greased every 10 hours of use. However, this may vary depending on the manufacturer’s recommendations and the conditions in which the machinery is being used.
4. Q: How do you connect a PTO shaft to a tractor? A: To connect a PTO shaft to a tractor, align the splines of the shaft with the splines of the tractor’s PTO stub and push the shaft onto the stub. Then, slide the locking collar on the shaft onto the PTO stub until it clicks into place.
5. Q: What happens if a PTO shaft is too long? A: If a PTO shaft is too long, it can cause binding and damage to the shaft and the equipment it’s connected to. It’s crucial to ensure that the PTO shaft is the correct length for the machinery being used.