DESCRIPTION: Made of the highest quality materials, the Ellipse Single Arm Casement Operator has provided years of continuous and trouble-free service for our customers. This operator will provide a full 90˚ window opening and disconnects easily from the sash. Nylon roller runs in the steel track to further assure smooth operation. Concealed mounting screws produce a neat overall appearance.

SEALABLE CASE: The unique case design complements the smooth contour styling of the Maxim® family of products, while retaining the same mounting and mechanical features of Truth’s Traditional Operator lines. A special “lip” around the operators’ case will accept a gasket, which will help the window achieve a higher air and water performance rating, while at the same time; eliminate the need for slow, messy and often expensive caulking during the installation process.

LOGO OPTIONS: Have you considered personalizing your window with your company name or logo? All of Truth’s operator handles are capable of accepting your own “signature”. Contact Truth for further details.

• Arm lengths shorter than 9.5″ will not allow easy operation of a window to 90˚ unless used with Truth’s #14.77 hinge.
• When used in high rise applications of over two stories, Truth recommends using a Limit Device (or see Tip 10).
• For limited opening applications, Truth recommends using #31727 Track.
• This operator may be mounted closer to the lock side of the window to effectively limit opening and improve corner pull-in performance.
• A spline cap (#21306) is available to protect the operator splines from dirt and other windows from damage during shipping, installation, and final building construction.
• Truth recommends that a Snubber be used at the center of the hinge side on any casement window which has a tendency to bow outwardly at the center in the closed position. Adding a Snubber may increase the negative air pressure rating of a casement window.
• The Truth Single Arm Operator works well with a Butt Hinge. Always use an operator with the longest arm possible for best operation.

• For accurate hardware placement in vinyl or metal applications, pre-drilling of the window profile is recommended.
• For vinyl window applications, mounting screws should pass through two PVC walls, or one PVC wall and one insert wall. For this reason, it may be necessary to use a longer screw than is recommended.
• For metal window profiles, Truth recommends machine screws. However, in most applications, sheet metal screws will provide adequate holding power.
• When selecting mounting screws for Truth hardware, coating compatibility is one of the most important criteria. For best corrosion resistance the coating on the screws should be the same as the coating on the hardware. For more information see Tech Note #11.
• Single Arm Operators do not work well with 4-Bar Hinges unless the 4-Bar Hinge is an egress hinge. If a 4-Bar Hinge other than an egress hinge is required, a Truth Dyad or Split Arm Operator is the best choice.

INCLUDE TRUTH SPECS ON YOUR NEXT PROJECT Window operators shall be provided which allow easy adjustment of window position. The mechanism should be crank operated and provide smooth operation of egress or butt hinges. Connection to the movable sash must be easily detachable for window cleaning and maintenance.

Window operators will be of single push arm design driven by a hand crank. The operator must be constructed of E-Gard® components, hardened steel worm and gear arm and high pressure zinc alloy die cast base.

Window Operators shall be 15 series Ellipse Single Arm Operator as manufactured by Truth Hardware, Owatonna, MN.

U. S. Patent #4,505,601

Canadian Patent #1,202,645

Other patents and patents pending worldwide