U-Cup for Pallet Mule U-Cup
PU B-1-18-3/4
Couldn't load pickup availability
- Expert support & fitment help
- 30-day returns
- Fast Shipping
Compatibility
|
Make |
|
|---|---|
|
Model |
- |
Reference Diagrams
Visit our diagram page for part references to popular models
Product Description
U-CUP
Compatibility: Fits pallet jacks made by Pallet Mule, model U-CUP. Alternate model: UCUP; U CUP. SKU: PU B-1-18-3/4
Frequently Asked Questions
Q: What is a U-cup seal and what does it do?
A: A U-cup seal is a dynamic hydraulic seal shaped like the letter U. It prevents hydraulic fluid leakage past the piston or rod in pallet jack cylinders. The U-cup works by creating a pressure-dependent seal that becomes tighter as hydraulic pressure increases.
Q: Which pallet jacks fit the PU B-1-18-3/4 U-cup?
A: The PU B-1-18-3/4 fits Pallet Mule model U-CUP pallet jacks. Alternate model designations include UCUP and U CUP. The 3/4-inch dimension specifies the rod or piston diameter. Verify this measurement on your equipment before ordering.
Q: What is the difference between the 3/4 and 5/8 inch U-cup models?
A: The 3/4-inch (PU B-1-18-3/4) and 5/8-inch (PU B-1-18-5/8) U-cups differ only in bore diameter. Order the size that matches your cylinder or rod diameter exactly. Incorrect sizing will result in poor sealing and hydraulic fluid leakage.
Q: When should a U-cup seal be replaced?
A: Replace U-cup seals when you observe hydraulic fluid leakage at the piston rod, slow or uneven lift speed, inability to hold load height, or dirty hydraulic fluid. U-cups typically wear out after several years of regular use depending on duty cycle and fluid maintenance.
