Hobart FT900 SERIES manual

701 S. RIDGE AVENUE TROY, OHIO 45374-0001 937 332-3000 www.hobartcorp.com FORM 33906 Rev. C (Mar. 2000) FT900 SERIES DISHW ASHERS R-L OPERATION L-R OPERATION LOAD 5' ML-110672 ML-110673 6' ML-110870 ML-110871 7' ML-110674 ML-110675 8' ML-110876 ML-110877 9' ML-110881 ML-110882 CENTER 8' FT900 ML-110676 ML-110677 11&apo[...]

– 2 – Operation and Care of FT900 SERIES DISHW ASHERS SA VE THESE INSTRUCTIONS OPERA TION MACHINE PREPARATION — Check before beginning operation. Raise the machine doors and make sure all components are in their proper operating positions. Pump Intake Screens must be put on holders at each pump intake (Fig. 1). Fig. 1 Strainer Pans must be in[...]

– 3 – FILL Assure proper water hardness. Recommended range is 4 – 6 grains per gallon. All water (and steam, if equipped) supply valves must be opened and the electric supply turned on before the machine will function. Close the drains and doors. Push the POWER ON / OFF switch (Fig. 9-a). The DOORS CLOSED indicator light (blue) will be lit wh[...]

– 4 – Empty Strainer Baskets During Operation as Necessary The Strainer Baskets must be emptied periodically during operation to prevent them from becoming clogged, which would adversely affect dishwasher operation. STOP the machine and open the side access doors; Strainer Baskets are immediately inside at the front of the tanks. Loading Pre-sc[...]

– 5 – CLEANING The dishwasher MUST be thoroughly cleaned at the end of each working shift. Drain the machine by lowering the drain levers to a horizontal position. Drain levers are located near the floor at the front of each tank. Draining the tanks requires approximately 5 – 10 minutes. Push POWER switch OFF. DISCONNECT ELECTRICAL POWER BEFO[...]

– 6 – When tanks are empty, remove pump intake screens (Fig. 21) and clean them in a sink. Remove the final rinse arms (Fig. 22). Clean debris from nozzles and arms using a straightened paper clip (Fig. 23). Never use steel wool to clean warewasher surfaces. Use only products formulated to be safe on stainless steel. Fig. 21 Fig. 22 Fig. 23 Rei[...]

– 7 – CLEANING THE TOP DUCT WARNING : DISCONNECT ELECTRICAL POWER AND PLACE A TAG AT THE DISCONNECT SWITCH INDICATING THAT THE MACHINE IS BEING WORKED ON BEFORE YOU BEGIN CLEANING. Debris and airborne particles will settle on the Top Covers and the surfaces inside the Top Duct. The Top Duct should be cleaned about every two weeks, as appropriat[...]

– 8 – DOs AND DON'Ts FOR YOUR NEW HOBART WAREWASHER DO assure proper water hardness of 4 to 6 grains per gallon. DO pre-scrap dishes thoroughly. DO use only detergents recommended by your chemical professional. DO at the end of the day, thoroughly cleanse the machine, rinse, and dry (leave doors open). DO closely follow your chemical profe[...]

– 9 – HANG CURTAINS Curtains must be in their proper places (Fig. 30) . . . A Short Curtain on the unload side of each upper Wash Arm, Long Curtains on both sides of every section divider, Two Long Cur tains at the Load End. Fig. 30 C O N T R O L B O X PREWASH ARM o o ooooo ooooo THREE SHORT CURTAINS AT UNLOAD SIDE OF UPPER ARMS FOUR PAIRS OF L[...]

– 10 – C O N T R O L B O X PREWASH ARM o o ooooo TWO SHORT CURTAINS AT UNLOAD SIDE OF UPPER ARMS THREE PAIRS OF LONG CURTAINS AT SECTION DIVIDERS LOAD UNLOAD WASH ARM FT900S R - L OPERATION WITH 4' CENTER SECTION RINSE ARM Fig. 30 PREWASH ARM TWO SHORT CURTAINS AT UNLOAD SIDE OF UPPER ARMS THREE PAIRS OF LONG CURTAINS AT SECTION DIVIDERS L[...]

– 11 – Fig. 30 FOUR SHORT CURTAINS AT UNLOAD SIDE OF UPPER ARMS AND BETWEEN TWO RINSE ARMS FT900W R - L OPERATION WITH 11' CENTER SECTION C O N T R O L B O X PREWASH ARM o o ooooo ooooo FIVE PAIRS OF LONG CURTAINS AT SECTION DIVIDERS LOAD UNLOAD WASH ARM POWER RINSE ARM RINSE ARMS FOUR SHORT CURTAINS AT UNLOAD SIDE OF UPPER ARMS AND BETWEE[...]

– 12 – PL-41059-1 REMOVE PLUG TO CHECK OIL LEVEL CONVEYOR MOTOR GEAR CASE PL-41060-1 DRAIN PLUG MAINTENANCE WARNING : DISCONNECT ELECTRICAL POWER SUPPLY AND PLACE A TAG AT THE DISCONNECT SWITCH INDICATING THAT YOU ARE WORKING ON THE CIRCUIT BEFORE PERFORMING ANY MAINTENANCE PROCEDURE. LUBRICATION A list of acceptable lubricants, as well as the [...]

– 13 – PL-41061-1 RESET BUTT ON Conveyor Speed Adjustment The conveyor speed can be adjusted by your local Hobart service technician. For Model FT900 and FT900W, maximum speed is 12 feet-per-minute, FPM , (factory preset is 8 – 9 FPM ). For Model FT900S, maximum speed is 6.3 FPM . Contact your local Hobart service office if your conveyor spee[...]

– 14 – Fig. 35 Rinse Actuator SYMPTOM POSSIBLE CAUSE Leaking Valve (Except Solenoid Type) Supplied by Others 1. 2. Foreign material preventing proper valve operation. A critical period is soon after installation when pipe compound or metal shavings may lodge at the valve seat. Shut off supply line. Unscrew and lift bonnet from valve body. Clean[...]

– 15 – SYMPTOM POSSIBLE CAUSE Continuous Rinse Operation (on machines equipped with Photoelectric Sensor Rinse, Figs. 27, 36.) 1. 2. 4. Photoelectric sensors are blocked. Clean sensor openings (Fig. 27). Remove side panels from load end of machine adjacent to pre-wash chamber. With machine power on, verify indicators on upper sensor (Fig. 36) f[...]

– 16 – FORM 33906 Rev. C (Mar. 2000) PRINTED IN U.S.A. DATE ______________________ DAY / SHIFT TIME PREWASH TANK TEMPERATURE WASH TANK TEMPERATURE POWER RINSE TANK TEMPERATURE FINAL RINSE TEMPERATURE COMMENTS / RECORDED BY[...]