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The JASON INDUSTRIAL 3L340 is a 3L-series fractional horsepower V-belt designed for light-duty power transmission applications. The 3L cross-section profile fits standard 3L-groove sheaves and pulleys, delivering reliable torque transfer in compact drive systems. This belt type is a staple in residential and light commercial equipment where space and load requirements call for a narrow, efficient belt profile. Installation is typically handled by HVAC technicians, appliance service professionals, or experienced maintenance personnel.
The 3L340 is suited for use in fractional horsepower drive assemblies found in residential HVAC equipment, small fans, blowers, pumps, and similar light-duty machinery. It serves as a direct replacement belt in applications where the 3L cross-section and the corresponding belt length are specified by the equipment manufacturer. Where the original belt is worn, glazed, or cracked, this belt provides an OEM-compatible replacement.
Designed as an OEM-style replacement for light-duty drive systems specifying a 3L-series V-belt of the corresponding length.
V-belt replacement should be performed by a qualified technician following applicable equipment service procedures. Disconnect and lock out all power to the equipment before removing the belt guard or accessing the drive assembly. Align sheaves properly before seating the new belt, and never use tools to force the belt over a sheave, as this can damage the belt cords. Check belt tension per the equipment manufacturer's specification after installation.
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