Product Description
Atlas AT Z-1138 O-Ring, genuine replacement seal for Atlas Zenith (Type 9) manual pallet jack hydraulic units. Ensures hydraulic fluid containment in high-pressure manual pump assemblies.
Compatibility: Fits pallet jacks made by Atlas, model Zenith. SKU: AT Z-1138
Specifications
Part Numbers
| Manufacturer Part Number | AT Z-1138 |
| OEM Part Number | AT Z-1138 |
| Compatible Model | Atlas Zenith (Type 9) hydraulic unit |
Frequently Asked Questions
Q: What equipment does the AT Z-1138 O-Ring fit?
A: The AT Z-1138 is a genuine replacement O-ring for Atlas Zenith Type 9 manual pallet jack hydraulic units. It fits the pump assembly hydraulic pressure chambers on all Atlas Zenith manual pallet jacks equipped with the Type 9 hydraulic system.
Q: What is the primary function of the AT Z-1138 O-Ring?
A: The AT Z-1138 seals and contains hydraulic fluid within the high-pressure pump assembly. A worn or damaged O-ring leads to hydraulic fluid leakage, loss of lifting pressure, and eventual pump failure.
Q: What symptoms indicate the AT Z-1138 needs replacement?
A: Look for visible hydraulic fluid weeping around the pump base, inability to maintain lifting height, or slow descent speed. These are signs the seal is degraded and the O-ring should be replaced to restore pump performance.
Q: What material is the AT Z-1138 O-Ring made from?
A: The AT Z-1138 is manufactured from elastomer compound designed to withstand the high-pressure cycles typical of manual pump hydraulic systems and maintain integrity across typical warehouse temperature ranges.
Q: How often does the AT Z-1138 O-Ring require replacement?
A: O-ring lifespan depends on usage intensity and hydraulic fluid condition. Seals typically last 2-5 years in standard industrial service. Contaminated hydraulic fluid or extreme usage accelerates wear. Replace when fluid loss or reduced pump pressure occurs.