CR 107577

Frequently Asked Questions

Q: What equipment does the CR 107577 limit switch fit?
A: The CR 107577 is a limit switch designed for Crown RC Series Counterbalanced Reach Trucks. Verify your truck model matches RC Series before ordering, as this part is model-specific to that line.

Q: What is the function of this limit switch on the RC Series?
A: Limit switches on reach trucks control max lift height and mast travel boundaries. The CR 107577 prevents overtravel of the boom or carriage, protecting mechanical linkage and hydraulic circuits from damage during normal operation.

Q: Are there cross-reference part numbers for the CR 107577?
A: The CR 107577 is the Crown OEM part number. If you need an equivalent from another supplier, confirm the switch type (normally open or closed), actuation method (mechanical, magnetic, or electronic), and voltage rating match before substituting.

Q: How often should this limit switch be inspected?
A: Inspect limit switches quarterly or after heavy use. Check for corrosion, loose mounting, bent actuators, and electrical continuity. A failing limit switch causes loss of travel stops, creating a safety hazard and potential hydraulic system damage.

Q: Can a limit switch fail gradually or does it fail suddenly?
A: Limit switches typically fail suddenly without warning, especially in wet or cold storage environments where corrosion accelerates failure. Symptom: the truck will not stop at max height or the boom overextends. Order a replacement CR 107577 immediately if this occurs.