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Hobart KA7E - page 1
701 S. RIDGE A VENUE TROY , OHIO 45374-0001 937 332-3000 www .hobartcorp.com F35521 (May , 2008) MODEL KA7E ROT AR Y OVENS MODEL KA7E SELF-CLEANING, P ASS-ThROuGh ML-137701 ...
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Hobart KA7E - page 2
– 2 – © HOBART , 2008 T ABLE OF CONTENT GENERAL ............................................................ 3 INST ALLA TION ........................................................ 4 LOCA TION ...................................................... 4 LEGS, CASTERS OR ST AND ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . 4 CONNE ...
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Hobart KA7E - page 3
– 3 – Installation, Operation and Care of MODEL KA7E ROT AR Y OVENS SA VE THIS MANUAL FOR FUTURE REFERENCE GENERAL The KA7E 'seven-spit' rotary oven provides evenly cooked, appealingly roasted product with combination convection and radiant heat. A full view , tempered glass door is provided for loading, and an identical pass-through ...
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Hobart KA7E - page 4
– 4 – INST ALLA TION Immediately after unpacking the oven, check for possible shipping damage. If the oven is found to be damaged, save the packaging material and contact the carrier within 15 days of delivery . Prior to installation, test the electrical service to make sure that it agrees with the specications on the machine data? ...
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Hobart KA7E - page 5
– 5 – Plumbing Connections Plumbing connections must comply with applicable sanitary , safety and plumbing codes. P1 W ater Drain — 1" NPT female piped to an open drain. No solid connection. Output is 140°F maximum at 5 GPM. P4 Hot W ater Supply — 3 / 4 " male hose bib tting. 0.5 GPM, 25 – ...
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Hobart KA7E - page 6
– 6 – Chemical Cleaner Supply and Grease Drain Connections Oven cleaners are corrosive and can cause chemical burns. Rubber gloves, goggles and protective clothing are required. Read and follow the instructions for the oven cleaner . P2 Chemical Cleaner Supply — Hose barb to accept 1 / 4 " ID chemically resistant tubing, supplied with ov ...
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Hobart KA7E - page 7
– 7 – Electrical Connection Electrical and grounding connections must comply with the applicable portions of the National Electrical Code, ANSI / NFP A 70, latest edition, and / or other local electrical codes. Disconnect the electrical power supply to the machine and follow lockout / tagout procedures. The electrical connection is E1 (Fig. 1). ...
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Hobart KA7E - page 8
– 8 – PLACING THE ROTOR IN THE OVEN Do not wrap the rotor or any other parts inside the oven with aluminu m foil. Soft metals can react with oven cleaners, and hazardous interactions can result. The rotor must properly engage with the drive mechanism. Orient the rotor so that the end plate with square drive slots is on the same side of the oven ...
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Hobart KA7E - page 9
– 9 – OPERA TION Hot glass, grease and parts can cause burns. Use care when operating and servicing the oven. OPERA TOR CONTROLS (Fig. 12) MESSAGE — Provides instructions. CENTER ADD 5 — Adds 5 minutes to the current step of the program each time it is pressed. PROBE — Di s p l a y s t e m p e r a t u r e , e x t er n ...
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Hobart KA7E - page 10
– 10 – P ASS-THROUGH CONTROLS (Fig. 13) Fig. 13 SNOOZE — Adds 10 minutes to the previous step of the program and silences the beeper . Snooze is active only when the beeper is sounding at the end of a cook cycle. Snooze is not active during the cook cycle, during Hold or after the S ...
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Hobart KA7E - page 11
– 1 1 – INITIAL ST ARTUP Power On T oggle the Main Power switch on the front panel of the oven to the ON position; the red indicator light on the switch comes on (Fig. 15). Idle Mode When the oven is rst turned on, the display shows the time of day and the last operated program number . Any programmed steps for ...
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Hobart KA7E - page 12
– 12 – SA VING OR VERIFYING A COOK PROGRAM (Program 1 – 9) Begin from Idle Mode. Program display shows last operated program (0 – 9). • Select a program (1 – 9). Program 0 is Manual Mode and cannot be saved into memory . • Press P for 3 seconds to enter programming mode. The program display shows the program/number ...
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Hobart KA7E - page 13
– 13 – Cooking 'Step 3' LED is lit. T ime display blinks. • Enter the desired cook time from 0:01 (1 minute) to 6:00 (6 hours). • Press ENTER to accept (or , press CLEAR to void and reenter). An invalid entry produces a double beep. Entering 0:00 for the time turns step 3 off and skips to ...
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Hobart KA7E - page 14
– 14 – PROGRAMMED COOKING (Program 1 – 9) Begin from Idle Mode. The Program display shows the last operated program (0 – 9). • Select a saved cook program (1 – 9). Any programmed steps for the selected program are indicated by lit step LEDs. • Press START to run a preprogrammed cook cycle. While running ...
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Hobart KA7E - page 15
– 15 – MANUAL COOKING (Program 0) Begin from Idle Mode. The Program display shows the last operated program (0 – 9). • Select manual mode by pressing MANUAL 0 and ENTER . Cook Step 1 LED is lit. T ime display blinks. • Enter the desired cook time from 0:01 (1 minute) to 6:00 (6 hou ...
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Hobart KA7E - page 16
– 16 – HOLDING CYCLE (SILENCING THE 'END OF CYCLE' ALARM) After a cook cycle has been completed, the beeper sounds and the oven automatically executes the Hold cycle (Step 4 of the cooking program). The Hold cycle will not execute if it was programmed 'off', using? ...
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Hobart KA7E - page 17
– 17 – ADDING COOK TIME • Press ADD 5 during a cooking cycle to add 5 minutes of cook time to the current step of the program in process. Press during the end of cycle buzzer or during Hold cycle to add 5 minutes of cook time to the last step of the last operated program. Press multiple t ...
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Hobart KA7E - page 18
– 18 – 99 PROGRAM FEA TURE The oven is preprogrammed with 9 programs as standard. The oven can be reprogrammed to enable all 99 programs by your local Hobart Service ofce. • T o select a program, enter the desired program number from 0 to 99. • Program display ashes. •? ...
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Hobart KA7E - page 19
– 19 – SUGGESTED ROASTING GUIDELINES The suggested cooking times and temperatures in the table may require adjustment for proper doneness depending on initial product temperature, weight, size, shape and other factors. STEP 1 STEP 2 STEP 3 STEP 4 TEMPERA TURE TIME PROGRAM # STEP 1 STEP 2 STEP 3 STEP 4 TEMPERA TURE TIME STEP ...
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Hobart KA7E - page 20
– 20 – Bring chickens from cooler . Check temperature — range should be from 37°F to 42°F . Insert approved popper , if available; it will pop out when chicken is done. PREP ARING, TYING & SPITTING — CHICKENS ON V -SPITS The rotary oven is not designed to roast frozen foods. Use only fresh or pre ...
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Hobart KA7E - page 21
– 21 – INCORRECT SPITTING — CHICKENS ON V -SPITS t WRONG — Angle of spit is in line with breast. This will split the backbone and could possibly result in falling off the spit during cooking. t WRONG — Legs and thighs are not on same side as breast. This could cause legs to fall off during cooking. t WRONG ? ...
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Hobart KA7E - page 22
– 22 – 1 Load 2 Skip 4 Skip 5 Load 6 Skip 7 Load 3 Load Fig. 18 Spits are sharp. Use care when loading product. SPITTING — CHICKENS ON FORK SPITS Press pointed ends of spits into whole poultry so points go thr oug h the ches t- win g and leg- th igh reg io ns (Fig. 17 ). Load four or ve chickens on each fork spit.? ...
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Hobart KA7E - page 23
– 23 – Loading V -Spits or Thermo-W ave Spits on the Rotor 1. Place pointed end of V -spit into outside hole on non-drive side of rotor (Fig. 21). 2. Fit notched end of V -spit into appropriate holes on drive side of rotor (Fig. 22). 3. Make sure the spit is level. If the spit is not level, you might be using the wrong holes. NON-DRIVE ...
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Hobart KA7E - page 24
– 24 – Hot glass, grease and parts can cause burns. Use care when operating and servicing the oven. UNLOADING ACCESSORIES FROM THE OVEN Opening the door does not stop the rotor , heaters or fan. 1. Press ST OP to stop rotation and cooking. Press Rotate Knob to allow rotor to advance to unloading position. Press Rotate Knob again to stop rotatio ...
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Hobart KA7E - page 25
– 25 – CHANGING THE CHEMICAL BOTTLE Oven cleaners are corrosive and can cause chemical burns. Rubber gloves, goggles and protective clothing are required. Read and follow the instructions for the oven cleaner . • Remove the chemical pick-up tubing and PVC standpipe with angled ends from the empty bot ...
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Hobart KA7E - page 26
– 26 – P 789 456 123 ENTER CLEAR ST ART CLOCK ADD 5 STOP TEMPERA TURE TIME • F • C PROGRAM • AM • PM STEP 1 • 2 • 3 • 4 • MANUAL 0 CLEAN AUTOMA TIC CLEANING Oven clea ner s are corr osi ve and can caus e ch emic al bur ns. Rubber glove s, goggle s and protec tiv e clot hing are req uire d. Read and follow the instructions for th ...
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Hobart KA7E - page 27
– 27 – • Pre-rinse cycle . • CLEANING WA TER FILL W ater is being added (Fig. 34). • CLEANING DEGREASE # 1 The oven rinses briey . • CLEANING WA TER DRAIN W ater drains from the Pre-rinse cycle. • W ashing and Soaking cycles . • CLEANING WA ...
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Hobart KA7E - page 28
– 28 – Fig. 38 Fig. 37 SUMP BOT TO M STRAINERS REMOVED DOOR JAM Fig. 35 Fig. 36 STRAINER UPSIDE DOWN 5. Remove the drip strainers. The underneath surface of the drip strainers may also have white chemical residue or dirt. If necessary , wipe off the underside of the drip strainers with a clean damp cloth (Fig. 36). If necessary , take the drip ...
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Hobart KA7E - page 29
– 29 – Fig. 39 Fig. 40 Fig. 41 WIPE OUT TROUGH GRASP A T TO P OF DOOR GRASP AT BOT TO M Fig. 42 WIPE CLEAN ALL INSIDE AND OUTSIDE GLASS DOOR SURF ACES 8. Wipe out the trough below the door opening (Fig. 39). 9. Separate the inner and outer doors by grasping at either the upper or the lower corner (Figs. 40, 41). 10. Wipe off the inside and outs ...
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Hobart KA7E - page 30
– 30 – DRIP STRAINERS ARE SEA TED Fig. 43 Fig. 45 REPLACE DRIP STRAINERS PROPERL Y 1 1. The notch in the drip strainer must be placed around the water pipe and block tting (Fig. 43). 12. Drip strainers must be seated (Fig. 44). • T abs under the drip strainer handles t slots in the ...
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Hobart KA7E - page 31
– 31 – Fig. 46 Fig. 47 Fig. 48 Fig. 49 T ABS ARE NOT IN SLOTS ON W ASH ARM SUPPORT DRIP STRAINERS ARE TURNED 90 DEGREES HANDLES SHOULD BE IN THE MIDDLE Figs. 46, 47, 48 and 49 show wrong ways to assemble the drip strainers. DRIP STRAINERS TURNED 90 DEGREES HANDLES SHOULD BE IN MIDDLE DRIP STRAINERS UPSIDE DOWN DRIP STRAINERS ARE NOT SEA TED W A ...
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Hobart KA7E - page 32
– 32 – 1. Press the CLEAN key . Press the MANUAL 0 key within 20 seconds (Fig. 50). • If the MANUAL 0 key is not pressed within 20 seconds, the oven goes into AUTOMA TIC CLEANING discussed on pages 26 – 31. T o stop automatic cleaning, press the STOP key and repeat step 1. 2. ADD DE-LIMING AGENT displays for 20 seconds. Open ...
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Hobart KA7E - page 33
– 33 – Fig. 55 MAINTENANCE PUMP TUBE MAINTENANCE Pump tubing is a wear item. Contact Hobart Se rvi ce to repl ace tub in g pe ri odi ca lly on grea se pump, chemical pump and water pump to avoid leakage. As pump tubing wears, leaks can occur . In the event of tubing leak or break, machine is designed to direct liquids to outside of oven (Fig. 5 ...
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Hobart KA7E - page 34
– 34 – Fig. 59 Fig. 57 Fig. 58 3. T o remove the upper cover from the three pins, front, and three pins, rear , grasp the front edge of the cover with both hands (Fig. 56). Press with both thumbs to release the front pins. Pull forward to escape the three pins in the rear and lower the upper cover . Manually clean the upper side of the upper co ...
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Hobart KA7E - page 35
– 35 – 7. After cleaning, reinstall the two fan blades: Mate the at side of the D-shaped hole on the fan to at side of the D-shaped shaft. Assemble and tighten the nut counterclockwise to the shaft (Figs. 60, 61, 62). Make ...
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Hobart KA7E - page 36
– 36 – F35521 (May , 2008) PRINTED IN U.S.A. TR OUBLE SHOOTI NG PROBLEM POSSIBLE RESOLUTION Control does not light up. 1. Press On-Off switch ON. 2. Electric supply is interrupted; check circuit breaker . Cooking too slow . Fan blade(s) and ventilation area require routine cleaning. W ater isn't spraying during wash cycle. W ash cycle is i ...
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