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Cylinder Repair Tips & Info

Identifying Cylinders on your Excavator

Identifying Cylinders on your Excavator

Excavator Cylinder Identification Diagram   Common Excavator Cylinders Excavator Boom Cylinder The boom cylinders are responsible for lifting the entire boom up and down. On larger machines it is common that there will be two boom cylinders, one on either side of the boom.   Excavator Stick Cylinder Also called the Arm, Crowd, and Dipper, the stick cylinder moves the dipper arm front and back, toward and away from the cab. This is usually the largest cylinder on the machine. Excavator Bucket Cylinder The Bucket cylinder curls the bucket forward and backward. Also referred to as the dump cylinder. Swing...

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Identifying Hydraulic Cylinders on your Dozer

Identifying Hydraulic Cylinders on your Dozer

Main Dozer Cylinders Dozer Lift The lift cylinders on the dozer are responsible for lifting the entire blade up and down.   Dozer Tilt The dozer tilt, or blade tilt, cylinders will tilt the blade forward and backward. On dozer tilt models there are typically two tilt cylinders, where as on power angle tilt models there is typically one.   Dozer Angle The angle cylinders are only found on power angle tilt models (6-way blade). They will angle the blade to the left and right.   Ripper These cylinders are only on models equipped with a ripper. They allow the...

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Case Cylinder Wipers: Snap-In vs. Press-In

Case Cylinder Wipers: Snap-In vs. Press-In

  Case Cylinder Snap In Wiper vs. Press In Wiper On some of the first Case backhoes, such as the 480 Construction King and the 580 Construction King, getting the right seal kit can depend on what style of Rod Wiper your cylinder takes. The best way to determine this is by looking closely at the part of the cylinder where the rod comes out of the gland. This can be done without taking the cylinder apart because the wiper is the only seal in the cylinder that can be seen from outside of the cylinder. Once you know which style...

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Cylinder Seal Installation Diagram

Cylinder Seal Installation Diagram

    Seal Installation Shown above is the seal arrangement in a typical cylinder with a one piece piston, buffer seal, and press in style wiper. Always install U-Cup with lip facing into the cylinder.    

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John Deere Unitized Piston Diagram

John Deere Unitized Piston Diagram

If there is an option for unitized and non-unitized piston seal kits for the cylinder you need and you cannot find a cylinder number on your cylinder, you may need to disassemble the cylinder and compare your piston to this diagram to select the right kit.

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