Lang ECO-7M Service Manual

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S6161-KW-FSE-010/34931

0910-LP-327-9700

OPERATION AND SERVICE MANUAL

FOR

SHIPBOARD ELECTRIC CONVECTION OVENS

MODEL NUMBERS ECO-6M, ECO-7M, ECO-8M, and ECO-

LANG MANUFACTURING COMPANY

6500 MERRILL CREEK PARKWAY

EVERETT, WA 98203

FSCM 34931

DISTRIBUTION STATEMENT

THIS PUBLICATION IS REQUIRED FOR OFFICIAL USE OR FOR ADMINISTRATIVE OR OPERATIONAL PURPOSES. DISTRIBUTION IS LIMITED TO U.S. GOVERNMENT AGENCIES ONLY. OTHER REQUESTS FOR THIS DOCUMENT MUST BE REFERRED TO COMMANDER, NAVAL SEA SYSTEMS COMMAND, SEA 09, WASHINGTON, DC 20362

SUPERCEDURE NOTICE

S6161-KW-FSE-010/34931 DATED MAY 1999

CANCELS AND SUPERCEDES S6161-KW-FSE-010/34931

DATED JULY 1989

AND ALL CHANGES THERETO

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MANUAL SUPPLEMENT FOR MARINE EQUIPMENT

THIS EQUIPMENT IS APPROVED FOR INSTALLATION ONLY ON VESSELS GREATER THAN 65 FEET IN LENGTH IN ACCORDANCE WITH USCG REGULATIONS IN TITLE 46 CFR 110-

113.

ANY WIRING USED IN THE INSTALLATION OF THIS APPLIANCE MUST BE STRANDED COPPER.

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S6161-KW-FSE-010/34931

MAY 1999

IDENTIFYING TECHNICAL PUBLICATION SHEET

1. IDENTIFICATION DATA: LANG MFG. CO. MODELS ECO-6M, ECO-7M, ECO-8M, & ECO-9M.

2. PURPOSE: THIS TECHNICAL PUBLICATION IS ISSUED FOR THE PURPOSE OF IDENTIFYING AN AUTHORIZED TECHNICAL MANUAL FOR NAVY USE AND FOR PROVIDING SUPPLEMENTAL TECHNICAL INFORMATION. A. MANUFACTURER: LANG MFG. CO. B. CONTRACT NUMBER: DLA400-91-M-5159 C. EQUIPMENT: ELECTRIC CONVECTION OVEN, MODEL # ECO-6M, ECO-

7M, ECO-8M, & ECO-9M. D. REQUISITION NUMBER: NOT REFERENCED E. NATIONAL STOCK NUMBER (NSN): 7310-01-314-7939 F. TITLE: MAINTENANCE MANUAL FOR ELECTRIC CONVECTION OVEN

ECO-6M, ECO-7M, ECO-8M, & ECO-9M G. DATE OF PUBLICATION: MAY 1999 H. PREPARING ACTIVITY: DEFENSE GENERAL SUPPLY CENTER I. APPLICABLE TMCR NUMBER: NDMS 880393-000 J. EXTENT OF PROPOSED SUPPLEMENTAL DATA (10% MAXIMUM): 1% K. LIST OF TECHNICAL MANUAL FOR THIS EQUIPMENT PROCURED

UNDER ANOTHER CONTACT:

3. ADDITIONAL COPIES: ADDITIONAL COPIES ARE AVAILABLE FROM:

NAVAL PUBLICATION AND FORMS CENTER

5801 TABOR AVENUE

PHILADELPHIA, PA 19120-5099

4. COVER: THE TECHNICAL MANUAL OUTSIDE COVER SHALL CONTAIN THE FOLLOWING STATEMENTS:

PUBLISHED BY DIRECTION OF COMMANDER, NAVAL SEA SYSTEMS COMMAND

THIS PUBLICATION IS REQUIRED FOR OFFICIAL USE OR FOR ADMINISTRATIVE OR OPERATIONAL PURPOSES. DISTRIBUTION IS LIMITED TO U.S. GOVERNMENT AGENCIES ONLY. OTHER REQUESTS MUST BE REFERRED TO COMMANDER, NAVAL SEA SYSTEMS COMMAND, SEA 09, WASHINGTON, DC 20362.

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S6161-FW-FSE-010/34931

0910-LP-327-9700

APPROVAL AND PROCUREMENT RECORD

APPROVAL DATA FOR: LANG ELECTRIC CONVECTION OVEN MODELS ECO-

6M, ECO-7M, ECO-8M, & ECO-9M.

TITLE OF MANUAL: MAINTENANCE MANUAL FOR: ELECTRIC

CONVECTION OVEN MODELS: ECO-6M, ECO-7M, ECO8M, & ECO-9M.

APPROVAL AUTHORITY: NAVAL SHIP SYSTEMS ENGINEERING STATION

CONTRACT NUMBER NSN # OF UNITS APL/CID DLA400-86-C-5292 7310-01-227-8214 58 430280135 DLA400-88-C-5327 7310-01-277-4105 97 430280144 DLA400-89-C-0442 7310-01-290-0463 13 430280147 DLA400-91-M-5159 7310-01-314-7939 5 430280155 REMARKS:

DATE: MAY 1999

CERTIFICATION:

IT IS HEREBY CERTIFIED THAT THE TECHNICAL MANUAL PROVIDED UNDER CONTRACT NUMBER DLA400-91-M-5159 FOR LANG ECO-6M, ECO-7M, ECO-8M, & ECO-9M HAS BEEN APPROVED BY THE APPROVAL DATA SHOWN ABOVE:

______________________________

DIRECTOR, GOV’T CONTRACTS

LANG MANUFACTURING COMPANY

FSCM / CAGE #: 34931

Page 5

CHANGE RECORD

Change no. Date Title and/or Brief Description

Signature of

Validating Officer

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CHAPTER PAGE

1. TABLE OF CONTENTS................................................................................6

2. LIST OF ILLUSTRATIONS..........................................................................7

3. READ FIRST..................................................................................................8

4. SPECIFICATIONS.........................................................................................11

5. EQUIPMENT DESCRIPTION.......................................................................14

6. INSTALLATION............................................................................................16

7. OPERATION..................................................................................................18

8. MAINTENANCE & TROUBLESHOOTING PROCEDURES.....................19

9. PARTS LIST...................................................................................................24

10. WIRING DIAGRAMS....................................................................................26

11. WARRANTY..................................................................................................28

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LIST OF ILLUSTRATIONS

FIGURE # TITLE OF ILLUSTRATION PAGE #

Picture of Oven

Specifications

Leg Installation

Stacking Instructions

Exploded View

Wiring Diagram 208/240 VAC

Wiring Diagram 440 VAC

12 & 13

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IMPORTANT READ FIRST IMPORTANT

CAUTION:

DANGER:

WARNING:

NOTICE:

CAUTION: CAUTION:

THE OVEN IS EXTREMELY HEAVY. FOR SAFE HANDLING, INSTALLER SHOULD OBTAIN HELP AS NEEDED, OR EMPLOY APPROPRIATE MATERIALS HANDLING EQUIPMENT (SUCH AS A FORKLIFT, DOLLY, OR PALLET JACK) TO REMOVE THE UNIT FROM THE SKID AND MOVE IT TO THE PLACE OF INSTALLATION.

ANY STAND, COUNTER OR OTHER DEVICE ON WHICH OVEN WILL BE LOCATED MUST BE DESIGNED TO SUPPORT THE WEIGHT OF THE OVEN(S).

SHIPPING STRAPS ARE UNDER TENSION AND CAN SNAP BACK WHEN CUT.

THIS APPLIANCE MUST BE GROUNDED AT THE TERMINAL PROVIDED. FAILURE TO GROUND THE APPLIANCE COULD RESULT IN ELECTROCUTION AND DEATH.

INSTALLATION OF THE UNIT MUST BE DONE BY PERSONNEL QUALIFIED TO WORK WITH ELECTRICITY AND PLUMBING. IMPRO PER INSTALLATION CAN CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO EQUIPMENT. UNIT MUST BE INSTALLED IN ACCORDANCE WITH ALL APPL I CABL E CO DES.

The data plate is located on the door of the oven. The oven voltage, wattage, serial number, wire size, and clearance specifications are on the data plate. This information should be carefully read and understood before proceeding with the installation.

The installation of any components such as a vent hood, grease extractors, fire extinguisher systems, must conform to their applicable National, State and locally recognized installation standards.

During the first few hours of operation you may notice a small amount of smoke coming off the oven, and a faint odor from the smoke. This is normal for a new oven and will disappear after the first few hours of use.

ALWAYS KEEP THE AREA NEAR THE APPLIANCE FREE FROM COMBUSTIBLE MATERIALS.

KEEP FLOOR IN FRONT OF EQUIPMENT CLEAN AND DRY. IF SPILLS OCCUR, CLEAN IMMEDIATELY, TO AVOID THE DANGER OF SLIPS OR FALLS.

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IMPORTANT READ FIRST IMPORTANT

WARNING:

CAUTION:

NOTICE:

WARNING:

CAUTION:

KEEP WATER AND SOLUTIONS OUT OF CONTROLS. NEVER SPRAY OR HOSE CONTROL CONSOLE, ELECTRICAL CONNECTIONS, ETC.

MOST CLEANERS ARE HARMFUL TO THE SKIN, EYES, MUCOUS MEMBRANES AND CLOTHING. PRECAUTIONS SHOULD BE TAKEN TO WEAR RUBBER GLOVES, GOGGLES OR FACE SHIELD AND PROTECTIVE CLOTHING. CAREFULLY READ THE WARNING AND FOLLOW THE DIRECTIONS ON THE LABEL OF THE CLEANER TO BE USED.

Service on this, or any other, LANG appliance must be performed by qualified personnel only. Consult your authorized service station directory or call the factory at 1-800-224-LANG (5264), or WWW.LANGWORLD.COM For the service station nearest you.

BOTH HIGH AND LOW VOLTAGES ARE PRESENT INSIDE THIS APPLIANCE WHEN THE UNIT IS PLUGGED/WIRED INTO A LIVE RECEPTACLE. BEFORE REPLACING ANY PARTS, DISCONNECT THE UNIT FROM THE ELECTRIC POWER SUPPLY.

USE OF ANY REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY LANG OR THEIR AUTHORIZED DISTRIBUTORS CAN CAUSE BODILY INJURY TO THE OPERATOR AND DAMAGE TO THE EQUIPMENT AND WILL VOID ALL WARRANTIES.

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LANG MANUFACTURING COMPANY

MANUAL FOR MODEL ECO

ELECTRIC CONVECTION OVENS

ISSUE DATE FEBRUARY 1999

LANG MANUFACTURING COMPANY

6500 MERRILL CREEK PARKWAY

EVERETT, WA 98203

CONVECTION OVENS PER: MIL-0-0043633 E

MIL SPEC LANG MODEL NUMBER SPECIFIC NSN

Type I, Size 1 ECO-7 Type I, Size 1 N.S.A. * ECO-7M 7310-01-290-0463 Type I, Size 2 ECO-6 Type I, Size 2 N.S.A. * ECO-6M 7310-01-314-7939 Type II, Size 1 ECO-9 7310-01-230-0559 Type II, Size 1 N.S.A. * ECO-9M 7310-01-277-4105 Type II, Size 2 ECO-8 Type II, Size 2 N.S.A. * ECO-8M 7310-01-227-8214

* N.S.A. for “Naval Shipboard Application”. All components will fit through a 26” X 66” watertight door.

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Figure # 1

Page 12

Figure # 1A

Page 13

Figure # 1A

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EQUIPMENT DESCRIPTION

INTRODUCTION

This manual contains the necessary information to install, operate, maintain, and service the Lang model ECO convection ovens.

Replacement parts should be genuine Lang parts. Failure to use genuine Lang replacement parts may result in malfunction of the appliance or possible injury to the contractor or service technician.

PURPOSE AND FUNCTION

Convection ovens constantly circulate air over the product. This removes a layer of moisture and cool air from around the product. This allows heat to penetrate the product more quickly. Cooking times are shortened and cooking temperatures are reduced.

CAPABILITIES

This convection oven is suitable for cooking all types of products requiring baking or roasting.

ENVIRONMENTAL REQUIREMENTS

The following minimum spacing from combustible surfaces must be maintained: Sides – 2 inches, Back – 2 inches

ITEMS FURNISHED (Listed by Model Number) Model ECO-6 or ECO-6M

1 ea. Oven, Type I, Size 2 4 ea. Legs 16 ea. 3/8 – 16 x 5/8 Bolts (For mounting legs) 16 ea. 3/8 – 16 Hex Nuts (For mounting legs) 32 ea. Washers (For mounting legs) 2 ea. Rack Slides, Extra Deep 5 ea. Racks, Extra Deep 2 ea. Manuals, Technical

Model ECO-7 or ECO-7M 1 ea. Oven, Type I, Size 1

4 ea. Legs 16 ea. 3/8 – 16 x 5/8 Bolts (For mounting legs) 16 ea. 3/8 – 16 Hex Nuts (For mounting legs) 32 ea. Washers (For mounting legs) 2 ea. Rack Slides, Standard Depth 5 ea. Racks, Standard Depth 2 ea. Manuals, Technical

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EQUIPMENT DESCRIPTION CONT’D

Model ECO-8 or ECO-8M

2 ea. Oven, Type II, Size 2 4 ea. Legs 16 ea. 3/8 – 16 x 5/8 Bolts (For mounting legs) 16 ea. 3/8 – 16 Hex Nuts (For mounting legs) 32 ea. Washers (For mounting legs) 4 ea. Rack Slides, Extra Deep 10 ea. Racks, Extra Deep 2 ea. Manuals, Technical 1 ea. Stacking Kit

Model ECO-9 or ECO-9M 2 ea. Oven, Type II, Size 1

4 ea. Legs 16 ea. 3/8 – 16 x 5/8 Bolts (For mounting legs) 16 ea. 3/8 – 16 Hex Nuts (For mounting legs) 32 ea. Washers (For mounting legs) 4 ea. Rack Slides, Standard Depth 10 ea. Racks, Standard Depth 2 ea. Manuals, Technical 1 ea. Stacking Kit

ITEMS REQUIRED

An adequate supply of wire suitable for the loads and application specified on the data sheet must be provided. The data sheet is on Page 4 of this manual.

TOOLS AND TEST EQUIPMENT REQUIRED

For Installation: 1 set – Open End Wrenches 1 – Flat Blade Screwdriver 1 – Phillips Screwdriver 1 – Wire Cutter/Stripper 1 – AMP Probe 1 – Voltmeter 1 – Drill 4 – #27 Drill Bits For Service: All of the above plus – 1 – Needle Nose Pliers 1 – Crimping Pliers

1 – Allen Wrench Set 1 – Temperature Meter 1 – Very Small Flat Blade Screwdriver 1 – #10 Square Drive Screwdriver

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INSTALLATION

CAUTION:

DANGER:

WARNING:

NOTICE:

ANY STAND, COUNTER OR OTHER DEVICE ON WHICH OVEN WILL BE LOCATED MUST BE DESIGNED TO SUPPORT THE WEIGHT OF THE OVEN(S).

SHIPPING STRAPS ARE UNDER TENSION AND CAN SNAP BACK WHEN CUT.

THIS APPLIANCE MUST BE GROUNDED AT THE TERMINAL PROVIDED. FAILURE TO GROUND THE APPLIANCE COULD RESULT IN ELECTROCUTION AND DEATH.

INSTALLATION OF THE UNIT MUST BE DONE BY PERSONNEL QUALIFIED TO WORK WITH ELECTRICITY AND PLUMBING. IMPROPER INSTALLATION CAN CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO EQUIPMENT. UNIT MUST BE INSTALLED IN ACCORDANCE WITH ALL APPLICABLE CODES.

The installation of any components such as a vent hood, grease extractors, fire extinguisher systems, must conform to their applicable National, State and locally recognized installation standards.

INSPECTION AND INSTALLATION

Upon receipt of the oven(s) any damage should be noted on the Bill of Lading and countersigned by the carrier. If concealed damage is discovered the carrier should be notified. All claims must be filed with the carrier.

Move the crate(s) containing the oven(s) as close to the place of installation as possible before removing the protective crating. Uncrate the oven(s) and move them as close as practical to the final installation site.

Bolt the legs to the bottom oven, (See figure #2). Use the 3/8 – 16 x 5/8 Bolts, Hex Nuts and Washers provided. There are pre-punched holes provided in the legs and oven bottom to aid in leg installation. Now the oven can be set upright in or near its final position.

Page 17

INSTALLATION

Oven Bottom Flange

Oven Bottom

Nut 3/8 – 16 Hex

Lock Washer

Flat Washers

Bolt 3/8 – 16 x 5/8

Oven Leg

For single cavity ovens, they can now be connected to power through he knockout in the bottom. The oven can be placed in its final position and leveled. The oven is ready for initial start-up procedures now. (See page 17)

FIGURE # 2

For two cavity ovens, place the upper oven on top of the bottom oven. Be careful to route the power supply wire between the two ovens using the holes provided. Do not pinch or cut the supply wires when stacking the ovens. Use the stacking kit provided to secure the top oven to the bottom oven. The stacking kit contains four (4) identical corner braces. One brace goes on each corner. Do the following for each corner: Put a brace on a corner. Drill pilot holes for the mounting screws using the pre-punched holes as a guide. Secure the top oven to the bottom oven with the sheet metal screws provided. (See figure #3)

Top Oven

Bottom Oven

Corner Brace

FIGURE # 3

Connect the power supply leads from the top oven to the power supply leads of the bottom oven and incoming power per the wiring diagram on Page 16 or 17. Now the bottom oven can be connected to the incoming power supply through the knockout provided in the bottom of the oven. Be sure the power supply voltage matches the voltage specified on the nameplate located on the front of the oven! Then the oven can be placed in its final

position and leveled. The oven is ready for

initial start-up procedures now. See page 17.

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OPERATION

NOTICE:

CAUTION:

ALWAYS KEEP THE AREA NEAR THE APPLIANCE FREE FROM COMBUSTIBLE MATERIALS.

KEEP FLOOR IN FRONT OF EQUIPMENT CLEAN AND DRY. IF SPILLS OCCUR, CLEAN IMMEDIATELY, TO AVOID THE DANGER OF SLIPS OR FALLS.

OPERATING INSTRUCTIONS

Each oven has the following controls: Vent, Timer, Temperature, Power Switch, Light Switch and Motor Speed Switch. Vent – Pull to Open, Push to close. Timer – Adjust to desired setting. Temperature – Turn to desired cooking temperature. Power Switch – Pull up to turn oven ON, push down to turn oven OFF. Light Switch – Pull up to turn oven light ON, release and oven light goes out automatically. Motor Speed Switch – Pull up for High Speed, push down for low speed.

INITIAL START-UP

Set oven(s) at 350° and allow oven to operate empty for 3 hours. After this time, the oven is ready for use.

NORMAL OPERATION

Turn the Power Switch On, turn to the desired temperature and select motor speed. (Hi or Low)

MAINTENANCE

Wash the stainless interior & exterior often with a solution of hot water and detergent to prevent grease build-up and preserve the oven’s appearance. Wipe up spillage as soon as possible. Never use scouring powder. It is difficult to remove completely and a residue build-up can damage the oven. The oven racks, slides and stainless steel oven liners are removable for easier cleaning of the oven interior.

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MAINTENANCE AND TROUBLESHOOTING

WARNING:

CAUTION:

NOTICE:

WARNING:

CAUTION:

KEEP WATER AND SOLUTIONS OUT OF CONTROLS. NEVER SPRAY OR HOSE CONTROL CONSOLE, ELECTRICAL CONNECTIONS, ETC.

BOTH HIGH AND LOW VOLTAGES ARE PRESENT INSIDE THIS APPLIANCE WHEN THE UNIT IS PLUGGED/WIRED INTO A LIVE RECEPTACLE. BEFORE REPLACING ANY PARTS, DISCONNECT THE UNIT FROM THE ELECTRIC POWER SUPPLY.

USE OF ANY REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY LANG OR THEIR AUTHORIZED DISTRIBUTORS CAN CAUSE BODILY INJURY TO THE OPERATOR AND DAMAGE TO THE EQUIPMENT AND WILL VOID ALL WARRANTIES.

TROUBLESHOOTING GUIDE

SYMPTOM PROBLEM REMEDY

Oven will not turn on * Internal Circuit Breakers off

* Power supply circuit

breakers off * Improperly Phased * Fuses Open

Power Supply Circuit Breakers Trip

* Supply circuit breakers of

insufficient size

* Supply voltage & oven

voltage do not match

Internal circuit breakers trip * Supply voltage & oven

voltage do not match

Oven takes too long to bake

* Improperly phased * Phase oven to match power

and wont’ maintain temperature

* Turn on * Turn on * Phase per wiring diagram * Change fuses

* Install proper size breakers * Change voltage to match oven

* Change voltage to match oven

supply per wiring diagram

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MAINTENANCE AND TROUBLESHOOTING CONT’D

PERFORMANCE AND INSPECTION

A periodic check of thermostat calibration should be performed. To check oven calibration attach a thermocouple to the mid-point of the thermostat bulb in the oven cavity. Turn the temperature dial to 350° and turn the oven ON. Wait approximately 20 minutes until the oven temperature has stabilized. If the average of the ON and OFF thermostat readings is within 10° of 350° the oven is in calibration. If not, remove the temperature knob and turn the small screw in the middle until oven is in calibration. Replace the knob and the oven is ready for normal operation.

MAJOR COMPONENT DISASSEMBLY, REPAIR, REPLACEMENT AND REASSEMBLY

(Refer to figure #4, page 22)

THERMOSTAT, CONTACTORS (RELAYS), SWITCHES

These parts are located behind the control panel assembly on the right hand side of each oven. Remove the screws attaching the control panel to the front of the oven. Slowly pull out the control panel until the component requiring replacement is accessible.

THERMOSTAT REPLACEMENT:

Inside the oven cavity remove the retaining clips holding the thermostatsensing bulb in place. Feed the bulb through the oven wall into the control panel area. Remove the wires attached to the thermostat terminals. Remember the terminal each wire was on and attach the wires to the same terminal on the new thermostat. Remove the screws holding the old thermostat to the front of the control panel. Discard old thermostat. Mount the new thermostat to the control panel, carefully feed the sensing bulb through the oven wall, and reattach the sensing bulb to the oven side using the retaining clips removed earlier. Close control compartment. Restore power to oven. Refer to the “Performance and Inspection” section to verify proper operation of the new thermostat.

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MAINTENANCE AND TROUBLESHOOTING CONT’D

ELEMENT REPLACEMENT:

The element is located inside the oven cavity. To replace the element, remove the baffle at the back of the oven. This will expose the elements to plain view and allow easy access. Remove the element mounting screws located near the top of the oven. Gently, pull the element into the oven cavity. There is enough wire connected to the element to allow easy access to the terminals located behind the element mounting plate. Move each wore from the existing terminal to the corresponding terminal on the new element. DO NOT mix up these wires! After all wires are transferred to the new element, feed the wire back through the access hole in the back of the oven and attach the element to the oven wall with the screws removed earlier. Replace the baffle. Refer to the “Initial Start-up” section to restore the oven to proper operation.

CONTACTOR (RELAY), SWITCH REPLACEMENT:

Pull out control panel as previously outlined. Remove the wires from the contactor or switch being changed. Place those wires on the corresponding terminal of the new part. Remove old part and mount new part with wires attached in the spot where the old part used to be. Reinstall the control panel, restore power to the oven. Turn oven on, set thermostat to 200° and allow oven to cycle 3 times or until the technician is satisfied with the proper operation of the oven.

BLOWER WHEEL REPLACEMENT:

The blower wheel is located inside the oven cavity. To replace the blower wheel, remove the baffle at the back of the oven. This will expose the blower wheel to plain view and allow easy access. Loosen the two (2) set screws holding the blower wheel onto the motor shaft. Using a three-finger blower wheel puller, grasp the puller ring with all three fingers and tighten the puller until the blower wheel hub clears the motor shaft. Place new blower wheel on the motor shaft and position exactly 5/8” from the oven back motor plate. Tighten the set screw positioned over the flat on the motor shaft. Spin the fan to make sure it spins straight. Tighten the second set screw and re-tighten the first set screw. Replace the baffle. The oven is now ready to re-start.

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MAINTENANCE AND TROUBLESHOOTING CONT’D

MOTOR REPLACEMENT:

The motor is located inside the oven cavity. To replace the motor, remove the baffle at the back of the oven. This will expose the blower wheel and motor shaft to plain view and allow easy access. Remove the blower wheel as described in “BLOWER WHEEL REPLACEMENT”. Next, remove the bolts holding the motor plate to the back wall of the oven cavity. Gently pull the motor forward and lay on the bottom of the oven cavity. Mark the wires so they can be placed on the same terminals of the new motor. Remove the motor wires. Remove the motor from the oven. Remove the motor mounting bolts, remove the old motor and replace with the new one. Reveres the above steps to remount the motor and see “BLOWER WHEEL REPLACEMENT” for proper re-installation of the blower wheel.

TRANSFORMER REPLACMENT:

Pull out control panel as previously outlined. Mark the wires attached to the transformer. Remove the wires. Remove the screws holding the transformer to the control panel. Install the new transformer. Reconnect the wires making sure they are attached to the same terminals as on the original transformer. Reinstall the control panel, restore power to the oven. The oven is now ready for normal operation.

MICROSWITCH REPLACEMENT:

Open the oven doors and remove the screws from the microswitch cover located below the doors. Remove the microswitch cover. Remove the two (2) small screws (6/32) holding the microswitch to its’ mount. Mark the wires attached to the microswitch, then remove the wires. Attach the wires to the new microswitch. Mount the microswitch with the two 6/32 screws. Adjust the microswitch arm for proper switch actuation. Replace cover and restart oven.

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23 25

Page 24

Item # Description Lang Part # Vendor Vendor #

1 Thermostat 30402-27

2 Thermostat, Safety 30401-09

3 Knob, Damper 70701-25

4 Handle, Door 70603-20

5 Latch, Marine Door ECO-762

6 Window, Door 71301-04

7 Hinge, Door Upper Left 70601-02

Hinge, Door Lower Left 60101-80

8 Hinge, Door Upper Right 70601-07

Hinge, Door Lower Right 60101-81

9 Blower Wheel 71500-05

10 Rack, Deep, ECO-6M & ECO-8M 50200-31

Rack, Std., ECO-7M & ECO-9M 50200-20

11 Rack Slide, ECO-6M & ECO-8M 50200-33

Rack Slide, ECO-7M & ECO-9M 50200-32

12 Socket, Light 31602-04

13 Lamp, Light 31603-04

14 Holder, fuse 30901-08

15 Fuse 30900-10

16 Motor, 440 VAC, 2 speed 30200-16

17 Element, 440 VAC 11090-25

18 Microswitch, Door 30301-02

19 Transformer, 480/240 VAC 31400-04

20 Timer, Mechanical 30801-03

21 Knob, Thermostat 70701-19

22 Switch, Toggle 30303-06

Robertshaw Youngswood, PA Elmwood Pawtucket, RI Aimsco Seattle, WA Lang Mfg Everett, WA Lang Mfg Everett, WA Mills Products Farmington, MI Kason Shenandoah, GA Lang Mfg Everett, WA Kason Shenandoah, GA Lang Mfg Everett, WA Revcor Carperntersville, IL Lang Mfg Everett, WA Lang Mfg Everett, WA Lang Mfg Everett, WA Lang Mfg Everett, WA Lang Mfg Everett, WA Litemor Seattle, WA H.D. Campbell Seattle, WA H.D. Campbell Seattle, WA Leeson Electric Milwaukee, WI Caloritech, Inc. Buffalo, NY Unimax Boston, MA Argo International New York, NY M.H. Rhodes Chicago, IL Lang Mfg Everett, WA Carlingswitch Inc. Plainsville, CT

KXP-356-48

345-0RC-174-0067

DK-49-REID

70603-20

ECO-762

1001453

1532

60101-80

1533

60101-81

1-8149

50200-31

50200-20

50200-33

50200-32

31602-04

1139750A/250V

HPF-EE Bussman

SC-15

101354.00

IXI-11090-25

HL2KJC3T055C

HD/2221109T00

22007

70701-19

2GL231-78-XLN2

Page 25

23 Switch, Toggle 30303-06

24 Pilot Light, 250 VAC 31601-01

25 Switch, Toggle 30303-06

26 S/S Liner, Top ECO-6M & ECO-8M ECO-750

S/S Liner, Top ECO-7M & ECO-9M ECO-751

28 S/S Liner, Left ECO-6M & ECO-8M ECO-754

30 S/S Liner, End Cover Bottom ECO-758

31 Door Stop Assy, Left Hand 50301-50

32 Door Stop Assy, Right Hand 50301-88

33 Contactor, Element 30700-05

34 Contactor, 2 Speed Motor 30705-01

35 Terminal Block, 3 Pole 95 Amp 30500-09

36 Rear Baffle Assembly ECO-351

S/S Liner, Bottom ECO-6M & ECO-8M S/S Liner, Bottom ECO-7M & ECO-9M

S/S Liner, Left ECO-7M & ECO-9M ECO-755 S/S Liner, Right ECO-6M &

ECO-8M S/S Liner, Right ECO-7M & ECO-9M

S/S Liner, End Cover Top ECO-758-1

Circuit Breaker, 2/10 AMP 2 Pole 30500-09

Knob, Timer 70701-55

Lamp, Lens 31604-01

Lamp, Lens Gasket 31604-02

Light Ring 50301-21

Wing Nut 20304-01

Capillary Tube Holder ECO-276

ECO-752

ECO-753

ECO-756-01

ECO-757-01

Carlingswitch Inc. Plainsville, CT Indicator Lites Chicago, IL Carlingswitch Inc. Plainsville, CT Lang Mfg Everett, WA Lang Mfg Everett, WA Lang Mfg Everett, WA Lang Mfg Everett, WA Lang Mfg Everett, WA Lang Mfg Everett, WA Lang Mfg Everett, WA Lang Mfg Everett, WA Lang Mfg Everett, WA Lang Mfg Everett, WA Lang Mfg Everett, WA Lang Mfg Everett, WA Products Unlimited Chicago, IL Products Unlimited Chicago, IL All-west Fast eners Seattle, WA Lang Mfg Everett, WA Carlingswitch Inc. Plainsville, CT Lang Mfg Everett, WA VWR Scientific Brisbane, CA Atlas Supply Seattle, WA Lang Mfg Everett, WA Lang Mfg Everett, WA Lang Mfg Everett, WA

2GL231-78-XLN2

10422250012221

2GL231-78-XLN2

ECO-750

ECO-751

ECO-752

ECO-753

ECO-754

ECO-755

ECO-756-01

ECO-757-01

ECO-758

ECO-758-1

50301-50

50301-88

3100-30U8198LM

3120-30K8198Q

14002-3A

ECO-351

CB2BO2422022CC

70701-55

66110-065

31604-02

50301-21

20304-01

ECO-276

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Lang Manufacturing Limited Warranty to Commercial Purchasers*

(Domestic U.S., Hawaii, & Canadian Sales only.)

WARRANTY

Lang Manufacturing Equipment (“Lang Equipment”) has been skillfully manufactured, carefully inspected and packaged to meet rigid standards of excellence. Lang warrants its Equipment to be free from defects in material and workmanship for (12) twelve consecutive months, with the following conditions and subject to the following limitations.

I. This parts and labor warranty is limited to Lang Equipment sold to the original commercial purchaser/users (but not o riginal equipment manufacturers), at its original place of installation, in the continental United States, Hawaii and Canada.

Quartz elements are warranted for ninety(90) days from the date of installation.

II. Damage during shipment is to be reported to the carrier, is not covered under this warranty, and is the sole responsibility of purchaser/user.

III. Lang, or an authorized service representative, will repair or replace, at Lang’s sole election, and Lang Equipment, including but not limited to, safety valves, gas and electric components, found to be defective during the warranty period. As to warranty service in the territory described above, Lang will absorb labor and portal to portal transportation costs (time & mileage) for the first (12) twelve months from the date of installation or eighteen (18) months from date of s hipment from Lang Manufacturing, which ever comes first.

IV. This warranty does not co ver routine general maintenance, periodic adjustments, as specified in operating instructions or manuals, and consumable parts such as quartz elements, or labor costs incurred for removal of adjacent equipment or objects to gain access to Lang Equipment. This warranty does not cover defects caused by improper installation, abuse, careless operation, or improper maintenance of equipment.

THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, EACH OF WHICH IS HEREBY EXPRESSLY DISCLAIMED. THE REMEDIES DESCRIBED ABOVE ARE EXCLUSIVE AND IN NO EVENT SHALL LANG BE LIABLE FOR SPECIAL, CONSEQUENTIAL OR INCIDENTAL DAMAGES FOR THE BREACH OR DELAY IN PERFORMANCE OF THIS WARRANTY.

VI. Lang Equipment is for commercial use only. If sold as a component of another(OEM) manufacturer’s equipment, or if used as a consumer product, such Equipment is sold AS IS and without any warranty.