RA 540-028-06

Frequently Asked Questions

Q: What does the RA 540-028-06 seal kit contain and what are the specifications?
A: The RA 540-028-06 is a Raymond OEM hydraulic lift cylinder seal kit containing nitrile and polyurethane seals. Rated for up to 3000 PSI, temperature range -20°C to +100°C, with oil-resistant material. This kit restores hydraulic sealing in the secondary lift cylinder.

Q: Which Raymond electric lift trucks does this seal kit fit?
A: The RA 540-028-06 kit fits Raymond secondary lift cylinders on compatible electric lift truck models. Cross-references include RAY-540-028/06 and 540-028/06. Verify your truck model and cylinder serial range match before ordering.

Q: What is the material composition and durability of these seals?
A: Seals are nitrile and polyurethane compounds, both oil-resistant and suitable for hydraulic applications. Nitrile provides general durability while polyurethane offers enhanced temperature stability. These materials withstand repeated compression cycles for extended cylinder life.

Q: How long does a hydraulic cylinder seal kit typically last in service?
A: Seal kits typically last 5-10 years or 10,000 operating hours depending on maintenance, cylinder operating pressure, and operating temperature. Degradation accelerates if the cylinder experiences contaminated hydraulic fluid or thermal stress.

Q: What symptoms indicate the secondary lift cylinder seals need replacement?
A: Signs of seal failure include hydraulic fluid leakage from cylinder rod ends, loss of lifting height, slow or inconsistent lift speed, or degraded cylinder performance under load. Address leakage promptly to prevent hydraulic system damage and maintain truck safety.

Q: Are there cross-reference or equivalent part numbers for this kit?
A: Cross-reference numbers include RAY-540-028/06 and 540-028/06. For aftermarket equivalent seal kits compatible with Raymond secondary cylinders, confirm your cylinder bore and rod dimensions match the RA 540-028-06 specification.