Product Description
CROWN SEAL KIT 220015890 is a manufacturer-specified hydraulic seal kit designed for Crown PTH-50 manual pallet jack hydraulic pump assemblies. The kit includes Viton and polyurethane seals compatible with a 1.25 inch rod and 2.00 inch bore, supporting up to 3000 PSI hydraulic pressure. Produced to ASTM D2000 and ISO 3601 material standards, this kit ensures proper sealing integrity for high-cycle manual lifting operations.
Specifications
Hydraulic
| Seal Kit Application | Designed for Crown PTH-50 manual pallet jack hydraulic pump assembly |
| Seal Type | Viton and polyurethane mixed material seals |
Material & Construction
| Seal Material Specification | Viton (ASTM D2000) and polyurethane (ISO 3601) |
Part Numbers & Compatibility
| Manufacturer Part Number | 220015890 |
| Compatible Models | Crown PTH-50 manual pallet jack |
Performance
| Leakage Rating | Maximum allowable hydraulic fluid loss 0.5 ml per cycle |
Frequently Asked Questions
Q: What equipment does seal kit 220015890 fit?
A: Seal kit 220015890 is designed specifically for Crown PTH-50 manual pallet jack hydraulic pump assemblies. This kit is OEM-specified and is not compatible with other Crown models or manufacturers without verification.
Q: What seal materials are included in kit 220015890?
A: Kit 220015890 includes Viton and polyurethane seals. Viton provides superior chemical resistance and temperature stability, while polyurethane offers enhanced wear resistance. Both materials meet ASTM D2000 and ISO 3601 standards for hydraulic sealing.
Q: What pressure rating does seal kit 220015890 support?
A: This seal kit is rated for hydraulic systems up to 3000 PSI. The seals are designed for a 1.25 inch rod and 2.00 inch bore configuration. Exceeding these pressure specifications will compromise seal integrity and cause leakage.
Q: What are the symptoms of seal failure in a Crown PTH-50 hydraulic pump?
A: Common failure indicators include visible hydraulic fluid leaking from the pump rod area, reduced lifting force despite full pump strokes, sluggish or jerky lift operation, and the platform drifting down under load. These symptoms indicate that seal kit 220015890 needs replacement.
Q: How often should the hydraulic seals be replaced on a Crown PTH-50?
A: Seal replacement intervals depend on usage frequency and hydraulic fluid condition. In high-cycle environments, seals typically require replacement every 12 to 18 months. Contaminated or degraded hydraulic fluid accelerates seal wear. Use OEM-spec hydraulic fluid and maintain fluid cleanliness to extend seal life.
Q: Are there cross-reference part numbers for seal kit 220015890?
A: Seal kit 220015890 is the Crown manufacturer part number. Aftermarket equivalents may exist from other suppliers, but OEM kit 220015890 ensures exact material specifications and pressure ratings. We recommend using the OEM specification to avoid seal incompatibility.