Summary of the content on the page No. 1
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FT900 SERIES DISHWASHERS
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' FT900W ML-110883 ML-110884
4' FT900S ML-110705 ML-110706 R-L OPERATION L-R OPERATION
UNLOAD WITHOUT BLOWER-DRYER UNLOAD WITH BLOWER-DRYER
5' ML-110680 ML-110681
6' ML-110805 ML-110806
7' ML-110682 ML-110683
8' ML-110807 ML-110808
9' ML-110684 ML-110685 ML-110688 ML
Summary of the content on the page No. 2
Operation and Care of FT900 SERIES DISHWASHERS SAVE THESE INSTRUCTIONS OPERATION 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 Strainer Pans must be in place on top of Strainer Baskets must be in place in holders at each pump intake (Fig. 1). each tank (Fig. 2). Strainer Pans (Fig. 3). Fig. 1 Fig. 2 Fig. 3 End Caps must be correctly installed at Wash Arms mus
Summary of the content on the page No. 3
FILL Assure proper water hardness. Recommended range is 4 – 6 grains per POWER START INITIAL gallon. ON / OFF FILL 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). DOORS STOP CLOSED The DOORS CLOSED indicator light (blue) will be lit when all doors are closed. All tanks will fill (for 10 – 15 minutes). When all tanks are filled, the water wil
Summary of the content on the page No. 4
0 0 0 0 0 0 0 1 1 0 1 1 2 2 2 2 2 2 2 2 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 9 9 9 9 1 1 1 1 0 0 0 0 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-scrap dishes thoroughly to remove large food particles an
Summary of the content on the page No. 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 BEFORE CLEANING. Open all front access doors. Remove the curtains. Clean the curtains. Using a good hose with spray nozzle, clean the load shelf and unload shel
Summary of the content on the page No. 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 Reinstall wash arm end caps; do not overtighten. Reinstall wash / rinse arms in their proper location. Orient arms so upper nozzles point down and lower nozzles p
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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 appropriate for your location. There are two handles on each Top Cover so they can be lifted or moved to access the inside of the Top Duct for cleaning (Fig. 28). Befor
Summary of the content on the page No. 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 professional's prescribed deliming schedule. DO use only products formulated to be safe on stainless steel. DO NOT over soften water (recommended water hardness range is
Summary of the content on the page No. 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 Curtains at the Load End. FT900 RINSE ARM POWER RINSE ARM WASH ARM PREWASH ARM R - L OPERATION WITH 8' CENTER SECTION o o ooo oo o oooo THREE SHORT CURTAINS AT UNLOAD SIDE OF UPPER ARMS C O N B LOAD T O UNLOAD R X O L FOUR PAIRS OF LONG CURTAINS AT SECTION DIVIDERS FT900 L - R OPERATION WITH 8' CENTER SECT
Summary of the content on the page No. 10
FT900S R - L OPERATION WITH 4' CENTER SECTION RINSE ARM WASH ARM PREWASH ARM o o ooooo TWO SHORT CURTAINS AT UNLOAD SIDE OF UPPER ARMS C O N B LOAD T O UNLOAD R X O L THREE PAIRS OF LONG CURTAINS AT SECTION DIVIDERS FT900S L - R OPERATION WITH 4' CENTER SECTION PREWASH ARM RINSE ARM WASH ARM o o ooo oo TWO SHORT CURTAINS AT UNLOAD SIDE OF UPPER ARMS C O B N LOAD UNLOAD O T X R O L THREE PAIRS OF LONG CURTAINS AT SECTION DIVIDERS Fig. 30 – 10 –
Summary of the content on the page No. 11
FT900W R - L OPERATION WITH 11' CENTER SECTION RINSE ARMS POWER RINSE ARM WASH ARM PREWASH ARM FOUR SHORT CURTAINS AT UNLOAD SIDE o oooo o o ooooo OF UPPER ARMS AND BETWEEN TWO RINSE ARMS C O N B LOAD UNLOAD T O R X O L FIVE PAIRS OF LONG CURTAINS AT SECTION DIVIDERS FT900W L - R OPERATION WITH 11' CENTER SECTION POWER RINSE ARM RINSE ARMS PREWASH ARM WASH ARM FOUR SHORT CURTAINS AT ooo oo o oooo o o UNLOAD SIDE OF UPPER ARMS AND BETWEEN TWO RINSE ARMS C O N B LOAD T O UNLOAD R X O L FIVE PAIR
Summary of the content on the page No. 12
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 lubricants themselves, are available from your local Hobart Service Office. Line Strainers Line strainers used in water or steam lines should be cleaned one week after machine installation and periodically thereafter. Motors All motors have sealed be
Summary of the content on the page No. 13
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 speed needs adjustment. TROUBLESHOOTING Manual Reset Button on Pump Motors and Conveyor Motor In case any of the pump or conveyor motors becomes overheated, the thermal overload will cause the
Summary of the content on the page No. 14
SYMPTOM POSSIBLE CAUSE Leaking Valve (Except 1. Foreign material preventing proper valve operation. A critical period is Solenoid Type) Supplied soon after installation when pipe compound or metal shavings may by Others lodge at the valve seat. Shut off supply line. Unscrew and lift bonnet from valve body. Clean valve and reassemble. 2. If problem is with a solenoid valve, it is recommended that you contact your local Hobart service office. Spotting of Silverware, 1. Improperly loaded dishes
Summary of the content on the page No. 15
SYMPTOM POSSIBLE CAUSE Continuous Rinse 1. Photoelectric sensors are blocked. Clean sensor openings (Fig. 27). Operation (on 2. Remove side panels from load end of machine adjacent to pre-wash machines equipped chamber. With machine power on, verify indicators on upper sensor with Photoelectric (Fig. 36) flash on and off when blocking and unblocking the upper Sensor Rinse, Figs. 27, sensor. Start machine running; verify lower sensor indicator (Fig. 36) is 36.) flashing when conveyor is runnin
Summary of the content on the page No. 16
FORM 33906 Rev. C (Mar. 2000) – 16 – PRINTED IN U.S.A. DATE ______________________ PREWASH TANK WASH TANK POWER RINSE TANK FINAL RINSE COMMENTS / DAY / SHIFT TIME TEMPERATURE TEMPERATURE TEMPERATURE TEMPERATURE RECORDED BY
