National Crane
Spool seal kit for National Crane 900
This spool seal kit restores the sealing integrity of hydraulic control valves on the National Crane 900 crane. It provides the necessary components to address internal and external fluid leaks within the valve assembly.
Compatible models
Specifications
- Part number
- 973963
- Brand
- National Crane
The 973963 spool seal kit contains the necessary sealing components to service hydraulic control valves. It restores the seal around the valve spools to prevent internal fluid bypass and external leakage, which are common causes of pressure loss and erratic hydraulic movement. By replacing worn seals, this kit helps maintain the precise control required for crane operations.
This kit is compatible with the National Crane 900 crane, specifically for units with serial number 293854. It is designed to fit the valve assemblies that manage hydraulic oil flow to the cylinders and motors responsible for operating the boom, hoist, and outriggers. The components within this kit are intended for maintenance and repair procedures on these specific hydraulic systems.
Spool seals function as the primary barrier against fluid migration between valve ports. In hydraulic control valves, these seals maintain the pressure differential required to actuate machine functions. Regular replacement of these seals ensures that the valve can hold pressure and respond accurately to operator inputs, preventing the loss of hydraulic efficiency.