Product Description
Seal Kit Hl Hfj-400
Frequently Asked Questions
Q: What jack model does the FJ HLSK seal kit fit?
A: The FJ HLSK is the correct seal kit for the FJ HFJ400A-N 4-ton forklift jack. This kit contains all elastomer seals, gaskets, and o-rings required for a complete hydraulic cylinder overhaul. Verify your jack model number before ordering; this kit is not compatible with 7-ton or larger capacity jacks.
Q: What components are included in the FJ HLSK seal kit?
A: The FJ HLSK contains rod seals, piston seals, cylinder head gaskets, port plugs, and all hardware required for a full overhaul of the FJ HFJ400A-N. Each seal is manufactured to OEM specifications using premium elastomer compounds rated for ISO VG 32 and VG 46 hydraulic fluids at operating pressures up to 210 bar.
Q: How long does a seal kit typically last?
A: A properly installed FJ HLSK seal kit typically provides 4 to 6 years of service life in normal warehouse operations. Lifespan depends on hydraulic fluid condition, contamination levels, temperature extremes, and load cycling frequency. Replace the seal kit when external leakage occurs or internal seal degradation is diagnosed during maintenance inspections.
Q: What material are the FJ HLSK seals made from?
A: The FJ HLSK contains Nitrile and PTFE elastomer seals designed for industrial hydraulic applications. These materials provide chemical compatibility with mineral-based hydraulic oils, temperature resistance from -20°C to +80°C, and durability under repeated pressure cycling. Seals are precision-molded to exact OEM tolerances for leak-free performance.
Q: Is the FJ HLSK a cross-reference for other brand seal kits?
A: The FJ HLSK is equivalent to seal kits for Crown, Toyota, and Raymond 4-ton hydraulic jacks. Verify the specific part number from your equipment manual before ordering. Cross-reference compatibility by matching jack model, tonnage rating, and hydraulic port configuration to ensure correct fit and performance.
