Method for changing a packing cup on a brake actuation-slack adjuster
AssigneeNew York Air Brake Corporation
InventorsZdzislaw Samulak, Lyle Jantzi
Life of this patent
Estimating the term…
Abstract
The method includes moving a piston and a force transmitting element connected to the piston to a locking position. The piston and force transmission elements are locked in the locking position which preferably is displaced from the brake released position. Preferably, the piston is locked to the housing and the force transmission elements to a brake beam. A portion of the cylinder surrounding the piston is removed from the housing which is connected to the brake beam or truck and the packing cup is replaced. The cylinder portion is then replaced on the housing and the piston and the force transmission elements are unlocked and the piston and the force transmission elements are allowed to return to their released position.
Claims21
A method of changing a packing cup on a piston in a cylinder of an integral brake actuator-slack adjuster unit, a housing of the unit being mounted on a brake beam or truck, a brake force transmission element being connected to said piston by a slack adjuster and extending from said unit, the piston and force transmission element having a brake released position and a brake applied position, a first portion of the cylinder being removable from the housing, the method comprising the following steps performed with the unit mounted to the brake beam or truck:
- moving said piston and said force transmission element to a locking position;
- locking said piston and said force transmission element in said locking position;
- removing said first cylinder portion from said housing;
- replacing said packing cup;
- replacing said first cylinder portion on said housing;
- and
- unlocking said piston and said force transmission element.
An integral brake actuator-slack adjuster unit, comprising:
- a housing to be mounted on a brake beam or truck;
- a piston and packing cup on said piston sliding in a cylinder on said housing;
- said piston having a brake released position and a brake applied position;
- a first portion of the cylinder being removable from the housing;
- a rod connected to said piston and slidably received in a bore in said housing;
- an aperture in said housing intersecting said bore;
- and
- a lock to be inserted through said aperture and to said rod to lock said piston to said housing.
Dependencies are inferred from the claim text.