Controller Kit Fisher 78102 Compatibility Guide Important: This controller is NOT compatible with newer “Fleet Flex” systems (2-wire). It is designed strictly for the following Non-Fleet Flex models: Fisher: Legacy Poly-Caster Hopper Spreaders (1.5, 1.8, and 2.5 Cu Yd models) Western: Tornado Hopper Spreaders (Legacy models) Blizzard: Ice-Chaser Hopper Spreaders Note: Fits spreaders with serial numbers prior to the Fleet Flex changeover. Check your battery cable—this controller requires a 4-Pin connector. Key Features Dual Variable Speed: Two dedicated knobs allow you to independently adjust the speed of the auger/conveyor (material flow) and the spinner (spread width). Blast Function: Dedicated “Blast” button provides a momentary surge of full power to both motors to clear jams or cover intersections quickly. Diagnostic Display: Built-in LED lights and digital display provide error codes (e.g., “bb”, “bH”) to help troubleshoot wiring or motor issues instantly. Backlit Controls: Illuminated knobs and buttons make night-time operation easy and safe. Direct Replacement: Replaces obsolete part numbers 29246 and 29247. What’s Included? (1) 78102 Dual Control Cab Controller (1) 78246 Mounting Bracket Kit (includes dash bracket and hardware) Note: Wiring harnesses are sold separately. Technical Specifications Brand: Fisher Engineering / Western Part Number: 78102 System Type: Multiplex (Non-Fleet Flex) Connector Type: 4-Pin Square Plug Voltage: 12V DC