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FT900 SERIES DISHWASHERS
MODELS ML-110668-U covers all of the following models:
FT900
FT900BD
FT900S
FT900SBD
FT900D
FT900DBD
FT900SD
FT900SDBD
701 S. RIDGE AVENUE
TROY, OHIO 45374-0001
937 332-3000
www.hobartcorp.com FORM 44095 (Oct. 2007)
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TABLE OF CONTENTS OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Machine Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Tank Filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Dishwashing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Operation and Care of FT900 SERIES DISHWASHERS SAVE THESE INSTRUCTIONS OPERATION MACHINE PREPARATION — Check before beginning operation. Open 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 must
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TANK FILLING Assure proper water hardness. Recommended water hardness is 3 grains or less per gallon. Higher hardness may cause excessive formation of lime scale. Chlorides must not exceed 50 ppm. All water (and steam, if equipped) supply valves must be opened and the electric supply turned on before the machine will function. Close all drains and doors. The drain handles are located near the floor at the front of each tank. Rotate drain handles clockwise to the vertical position. The prewa
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DISHWASHING STOP (red) and START (green) Switches Start the motors for the conveyor, pumps and blower-dryer (push-button) are located on the load and (if equipped) by pressing the green START switch located unload ends of the machine. at either the load or unload end of the machine (Fig. 10) or on the control box (Fig. 11). The machine will operate only if the tanks have filled to the proper level and all doors are closed. Press the red STOP switch (Fig. 10 or 11) to stop STOP (red) the convey
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EMPTY STRAINER BASKETS DURING OPERATION AS NECESSARY The Strainer Baskets must be emptied periodically during operation to prevent them from over filling, which would adversely affect dishwasher operation. STOP the machine and open the access doors; Strainer Baskets are immediately inside at the front of the tanks. On Dual Rinse machines (FT900D or FT900SD) the strainer pan is located inside the machine behind the control box area. Remove and clean the strainer pan periodically. LOADING Pre-sc
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CLEANING The dishwasher MUST be thoroughly cleaned at the end of each working shift or after each meal. Push the Power key on the keypad to turn the machine OFF. Disconnect electrical power supply(ies) and follow lockout / tagout procedures before you begin cleaning. Open all front access doors. Drain the machine by rotating the drain handles counterclockwise to a horizontal position. Drain handles are located near the floor at the front of each tank. On Dual Rinse machines (FT900D or FT900SD
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When tanks are empty, remove pump intake screens (Fig. 22) and clean them in a sink. Remove, clean and replace the strainer(s) from drainback pans in the power rinse and / or wash section(s) where present (Fig. 23), refer to pages 11–14. Remove the dual rinse arms (FT900D or FT900SD only). Clean debris from metal dual rinse nozzles and arms using a straightened paper clip (Fig. 24). Do not attempt to clean Opti-Rinse final rinse nozzle(s). Opti-Rinse nozzle(s) should be replaced if they become
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CLEANING THE TOP DUCT Disconnect electrical power supply(ies) and follow lockout / tagout procedures 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 of the removable Top Covers so they can be lifted or moved to access the inside of the Top Duct for cleaning (Fig. 29). Before draining and cleaning the
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CLEANING THE BLOWER-DRYER AIR FILTER At least twice each month, the air filter (when present, Fig. 30) on the blower-dryer should be removed and cleaned in a sink with warm soapy water and hosed off with clean water. The air filter can be washed in the dishwasher and flushed with clean water after washing. Replacement air filters are available — contact Hobart service. BLOWER-DRYER FILTER LIFT UP AND PULL FORWARD TO REMOVE R – L OPERATION SHOWN Fig. 30 DOs AND DON'Ts FOR YOUR NEW HOBART DIS
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CURTAINS AND DRAINBACK PANS, MODEL FT900 Curtains and drainback pans must be in their proper places, Fig. 31 . . . • Hang a short curtain on the unload side of each upper prewash, wash and power rinse arm. • Hang a long curtain on both sides of every section joint. • Hang two long curtains at the load end. • Hang one long curtain at the unload end. • Drainback pan locations are shown for reference only. FINAL RINSE ARM POWER RINSE ARM WASH ARM PREWASH ARM FT900 R TO L OPERATION 8' CENTER SECTION
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CURTAINS AND DRAINBACK PANS, MODEL FT900D Curtains and drainback pans must be in their proper places, Fig. 32 . . . • Hang a short curtain at the unload side of every upper prewash, wash, power rinse and dual rinse arm. • If equipped with a blower-dryer, hang another short curtain after the final rinse arm. • Hang a long curtain on both sides of the prewash / wash section joint and the wash / power rinse section joint. • Hang two long curtains at the load end. • Hang one long curtain at the unlo
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CURTAINS AND DRAINBACK PANS, MODEL FT900S Curtains and drainback pans must be in their proper places, Fig. 33 . . . • Hang a short curtain on the unload side of each upper prewash and wash arm. • Hang a long curtain on both sides of every section joint. • Hang two long curtains at the load end. • Hang one long curtain at the unload end. • Drainback pan locations are shown for reference only. FT900S R TO L OPERATION 4' CENTER SECTION FINAL RINSE ARM WASH ARM PREWASH ARM TWO SHORT CURTAINS AT UN
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CURTAINS AND DRAINBACK PANS, MODEL FT900SD Curtains and drainback pans must be in their proper places, Fig. 34 . . . • Hang a short curtain at the unload side of every upper prewash, wash and dual rinse arm. • If equipped with a blower-dryer, hang another short curtain after the final rinse arm. • Hang a long curtain on both sides of the prewash / wash section joint. • Hang two long curtains at the load end. • Hang one long curtain at the unload end. • Drainback pan locations are shown for refer
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MACHINE OPERATION AND PROGRAMMING SECURITY LEVELS The advanced digital controls on your dishwasher allow several setup and customization options. Because these options can affect the operation of the machine, they are all locked-out by default from the factory. To unlock them for editing, the security level must be elevated to an appropriate level. It is recommended to keep the dishwasher in the lowest security level possible at all times. This will prevent options from being inadvertently or
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USER PROGRAMMING INSTRUCTIONS The dishwasher is equipped with electronic digital controls to allow greater precision for cleaning your ware, maintaining required tank temperatures and other advanced functions. Some of these functions are customized to suit the needs of your kitchen operation. All customization is performed through the on-screen menu using the UP, DOWN / MENU and START / ENTER keys located on the keypad on the control box door (Fig. 35). DISPLAY POWER START or ENTER UP STOP DOWN
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Entering the Parameters Menu NOTE: The parameters can be changed anytime the display is active, which is when the machine is operating or in idle mode. To enter the Parameters menu to edit options: 1) Press the MENU key from the main screen. a. You will be prompted on-screen asking if you wish to exit the menu. 2) Press the UP or DOWN key repeatedly until you reach the ENTER SECURITY CODE? screen. 3) Press the ENTER key to indicate that you want to enter the code. a. You will now be prompted wit
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Parameters Menu The Parameters Menu — Table 1 lists the parameter name, a short description, a list of possible values the parameter can have, the factory default value based on the specific dishwasher model and the security level required to access that parameter. PARAMETERS MENU — TABLE 1 Parameter Description Model Possible Default Security Name Values Value Required Conveyor Speed Adjusts the speed of the conveyor in feet per FT900 4 – 10 8.5 SO minute. Increasing the value can increase the
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Communications Setup Menu The Communications Setup Menu — Table 2 lists the parameter name, a short description, a list of possible values the parameter can have, the factory default value based on the specific dishwasher model and the security level required to access that parameter. COMMUNICATIONS SETUP MENU — TABLE 2 Parameter Description Possible Default Security Name Values Value Required NAFEM DP Baud Adjusts the baud rate of communication between the 9600 dishwasher and a NAFEM Data Proto
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MAINTENANCE Disconnect electrical power supply(ies) and follow lockout / tagout procedures before performing any maintenance procedure. LINE STRAINERS Line strainers used in water or steam lines should be cleaned one week after machine installation and periodically thereafter. LUBRICATION A list of acceptable lubricants, as well as the lubricants themselves, are available from your local Hobart Service Office. Motors All motors have sealed bearings and require no lubrication maintenance. Convey
