Prime Line Products H 3520 Casement Window Operator Rh

Product Description

The PRIME LINE PRODUCTS H 3520 is a right-hand aluminum diecast casement window operator designed for worm-gear-driven casement window systems. The square body housing encloses a worm gear mechanism driven by a 3/8 inch crank spindle, delivering smooth, reliable operation for casement windows. A 9 inch steel arm extends from the body, terminating in a round disc that slides within the casement track located on the bottom rail of the casement window sash. This operator is suited for installation by glaziers, window technicians, and general contractors working on residential casement window repairs or replacements.

This operator is intended for right-hand casement window applications where the existing operator requires replacement due to wear, stripping, or breakage. The aluminum diecast construction provides durability in both interior and exterior window environments. Each unit is individually carded for retail or service-counter distribution. Package quantity is 6 units per package, making it practical for service fleets and supply stockrooms handling recurring window hardware repairs.

Key Features

• Right-hand orientation for correct sash drive direction
• Aluminum diecast construction for corrosion resistance and dimensional stability
• Square body type for straightforward surface mounting
• 9 inch steel arm with round disc tip engages casement track on window bottom rail
• Worm gear drive actuated by 3/8 inch crank spindle for mechanical advantage and positive hold
• Carded packaging for easy point-of-sale or service counter handling

Compatibility

Designed as an OEM-style replacement for right-hand casement window operators with a square body mount and worm-gear drive accepting a 3/8 inch crank spindle.

Installation Notes

Installation is typically performed by a window technician or general contractor. Before replacing the operator, close the window sash fully and remove any crank handle to release tension on the existing arm. Verify the hand orientation of the replacement matches the original unit before mounting. Secure the operator body to the window frame per the fastener pattern of the existing footprint, and confirm the disc seats freely in the casement track before reinstalling the crank handle.