JLG Limit Switch 4360578S – Boom Lift Roller Lever Sensor (340AJ, 460SJ, 660SJ)

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Limit Switch 4360578S – Roller Lever Position Sensor for JLG Boom Lifts

JLG Limit Switch 4360578S Roller Lever for Boom Angle Sensing.

🔹 Product Overview: Critical Position Sensing and Safety Interlock

The Limit Switch with part number 4360578S (and its predecessor 4360578) is a vital electrical safety component for a wide range of JLG Mobile Elevated Work Platforms (MEWPs). It is typically a roller lever style limit switch used to monitor the extreme physical limits or positions of major machine components. On boom lifts, this switch is often employed to sense the boom angle and/or length, providing the control system with immediate feedback on the boom’s configuration. This is crucial for enforcing stability limits, speed restrictions, and ensuring the machine remains within its safe operating envelope. A failure of this component can lead to safety lockouts or prevent key machine functions.

Key Features & Benefits

✅ Critical Safety Function: Designated as a safety limit switch, essential for monitoring boom position and enforcing safety parameters (e.g., cutback speed in specific boom positions).

✅ Roller Lever Actuator: Features a roller lever design, providing mechanical reliability and smooth activation when a moving component reaches its limit.

✅ Direct OEM Cross-Reference: Exact match for JLG part numbers 4360578S and 4360578.

✅ Wide Application: Used for position sensing on various articulated (AJ) and straight (SJ, S) boom lift models.

✅ High Durability: Constructed with a metal housing and engineered for the harsh mechanical and environmental conditions of aerial lift operation.

Technical Details

Part Number: 4360578S (Also known as 4360578)
Type: Roller Lever Limit Switch / Position Sensor
Actuator: Lateral Roller Arm
Function: Provides electrical ON/OFF feedback to the control system based on the mechanical end-of-travel or specific angular/length position of the boom or other component.
Electrical Specs: Typically includes 1 Normally Open () and 1 Normally Closed () contact.
Note: For proper installation, a separate connector (P/N 4460968) may be required.

Compatibility

This limit switch is compatible with a broad range of JLG Articulating Boom Lifts (/) and Telescopic Boom Lifts (//), including:

Model Series	Compatible Models
Articulating Booms	340AJ, 600A, 600AJ, 800A, 800AJ, 1250AJP
Telescopic Booms	400S, 460SJ, 600S, 660SJ, 800S, 860SJ, 1200SJP, 1350SJP

Note: Always verify the part number against your specific machine model and serial number using the JLG parts manual to ensure correct component replacement, as applications can vary based on machine specification and production date.

Delivery Times

Average Delivery Time is 10-15 days within worldwide.
For overseas delivery Message Us or Call Toll Free at +8618221399269

General Returns: All returns must be requested within 30 days of invoice.
Please note that this refund policy applies to parts purchases only. There are no refunds available for equipment purchases.

General Returns: All return requests must be made within 30 days of the invoice date. Returned merchandise will ONLY be accepted with an issued Return Authorization number and must be returned within 30 days of issuing that Return Authorization number. Special-Order products, electronics, paints, chemicals, lubricants, LPG tanks, and fire extinguishers are non-returnable once ordered. Returned items must be sent to Shanghai RQMACHINE Equipment with freight prepaid.

All returns, except those involving a Shanghai RQMACHINE Equipment order or product error, will be subject to a 25% restocking charge per line item.

Merchandise returned as defective will be thoroughly tested and inspected. For items verified as defective, Shanghai RQMACHINE Equipment will, at its sole discretion, either repair or replace the merchandise at no charge, or issue a full credit for the defective merchandise, including freight. Merchandise returned as defective but found to be working properly will be subject to a testing fee and the 25% restocking charge per line item.

Credit will not be issued for merchandise damaged due to corrosive materials, abuse, alteration, or misuse.

Before returning any merchandise to Shanghai RQMACHINE Equipment, a Return Authorization Number must be obtained from our sales/customer service department.

Your request must include:

Part Number & Description
Return Reason
Order Number

Phone: +8618221399269