Product Description
UL H-1785-SK Seal Kit for Ultra manual pallet jacks. OEM replacement, includes nitrile and thermoplastic elastomer seals for hydraulic pump rebuilding. Compatible with Ultra hydraulic pump assemblies, rated to 3000 PSI. No cross-reference part numbers available.
Specifications
Hydraulic/Pneumatic
| Seal Material | Nitrile rubber and thermoplastic elastomer (TPE) |
| Operating Pressure Range | Up to 3000 PSI hydraulic working pressure |
Material & Construction
| Seal Hardness | Shore A 70 for O-rings, Shore D 55 for wear washers |
Part Numbers
| OEM Part Number | UL H-1785-SK |
| Manufacturer Part Number | UL H-1785-SK |
Frequently Asked Questions
Q: What materials and specifications are in the UL H-1785-SK seal kit?
A: The UL H-1785-SK is an OEM replacement seal kit for Ultra manual pallet jacks containing nitrile rubber and thermoplastic elastomer (TPE) seals. O-rings have Shore A 70 hardness, wear washers Shore D 55 hardness, rated to 3000 PSI hydraulic working pressure.
Q: Which Ultra hydraulic pump assemblies does the UL H-1785-SK seal kit fit?
A: The UL H-1785-SK is designed for Ultra hydraulic pump assemblies in manual pallet jacks. Verify your pump assembly is rated for 3000 PSI before ordering to ensure correct fitment and safe operation.
Q: What is the maximum operating pressure for the UL H-1785-SK seals?
A: The UL H-1785-SK seals are rated for up to 3000 PSI hydraulic working pressure. Operating above this pressure will compromise seal integrity and create safety hazards.
Q: How long do the seals in the UL H-1785-SK typically last?
A: Seal lifespan depends on operating conditions, pressure cycling, and contamination levels. Nitrile and TPE seals typically show degradation signs after 2-3 years in standard warehouse use. Regular inspection for leaks indicates replacement need.
Q: Are there any cross-reference part numbers for the UL H-1785-SK?
A: No cross-reference part numbers are available. The UL H-1785-SK is the OEM part designation and manufacturer part number for this seal kit.