Product Description
Crown 3034585 hydraulic seal kit is a complete replacement solution for Crown PTH-50 manual pallet jack pump assemblies. This direct replacement kit contains all dynamic and static hydraulic seals required for full pump service and maintenance. Built with high-performance elastomer and PTFE materials engineered for reliability and durability, it restores pump performance and eliminates hydraulic leaks. Designed for serial numbers 3-118400 to 3-183849.
Specifications
Hydraulic
| Seal Kit Part Number | 3034585 |
| Max Pressure Rating | 3000 PSI |
| Seal Type | Complete dynamic and static seal kit |
Material & Construction
| Materials | NBR, PTFE, polyurethane |
| Seal Hardness | NBR seals: 70 Shore A; Urethane wipers: 90 Shore A |
| Service Life | 2-4 years typical warehouse service |
Compatibility
| Compatible Equipment | Crown PTH-50 manual pallet jack |
| Serial Number Range | 3-118400 to 3-183849 |
Frequently Asked Questions
Q: What seals does the 3034585 kit include for the Crown PTH-50?
A: The 3034585 is a complete hydraulic seal kit that replaces all dynamic and static seals in the Crown PTH-50 pump assembly. The kit includes NBR seals (70 Shore A hardness) and polyurethane wiper seals (90 Shore A hardness). PTFE backup rings prevent seal extrusion under high pressure.
Q: Which Crown manual pallet jack models are compatible with the 3034585 seal kit?
A: The 3034585 is specifically engineered for Crown PTH-50 manual pallet jacks with serial numbers 3-118400 to 3-183849. Do not use this kit on other Crown models or equipment from different manufacturers. Verify your serial number range before ordering to ensure compatibility.
Q: What is the maximum pressure rating for the 3034585 seal kit?
A: The 3034585 seals are rated for hydraulic service up to 3000 PSI. This pressure range covers normal manual pallet jack pump operations. Do not exceed rated pressure, as seal failure can cause oil leakage and pump malfunction.
Q: What failure symptoms indicate the 3034585 seals need replacement?
A: Replace seals when you observe hydraulic oil leaking from pump cylinder, lift pressure dropping during operation despite proper oil level, pump making unusual grinding or chattering noise, or slow response when engaging the lift handle.
Q: What materials are used in the 3034585 seal kit and how long do they last?
A: The kit uses high-performance NBR elastomer, PTFE backup rings, and polyurethane wipers engineered for 2-4 years of service in typical warehouse environments. Seal lifespan depends on oil condition, temperature, and duty cycle. Change hydraulic oil annually to extend seal life and prevent contamination.
Q: Is the 3034585 seal kit the complete solution for pump seal replacement?
A: Yes, the 3034585 is a complete kit that replaces all required dynamic and static hydraulic seals for the Crown PTH-50 pump assembly. No additional seals or components are needed for a full pump seal service.