Blodgett TBG36-FM Installations- und Betriebsanleitung

TBG36-CM, TBG36-FM AND TBG36-S

ELECTRIC CONVEYOR GRILL

SERVICE AND REPAIR MANUAL

BLODGETT OVEN COMPANY

www.blodgettcorp.com

50 Lakeside Avenue, Box 586, Burlington, Vermont 05402 USA Telephone (800) 331-5842, (802) 860-3700 Fax: (802)864-0183

PN G0173 Rev A (7/01)

E2001 --- MagiKitch’n Incorporated

TABLE OF CONTENTS

1. INTRODUCTION

Unit Description 1 --- 1..................................................................

Specifications 1 --- 2....................................................................

Required Service Tools 1 --- 3............................................................

Electrical Safety 1 --- 3..................................................................

Wiring Diagrams 1 --- 4..................................................................

2. UNIT CONTROLS

Controls Identification 2 --- 1.............................................................

Programming Flow Chart 2---2..........................................................

Operation Flow Chart 2 --- 3.............................................................

Calibration Flow Chart 2 --- 4.............................................................

Controller Removal and Replacement 2---7...............................................

Switch Replacement 2 --- 9..............................................................

3. TEMPERATURE CONTROL

Description 3 --- 1......................................................................

Wiring Diagram 3 --- 2...................................................................

Troubleshooting 3 --- 3..................................................................

Thermostats 3 --- 3..................................................................

Overtemperature Safety Thermostat Circuit 3---4.......................................

Thermocouple Diagnostic Procedure 3---5................................................

Platen Contactor Diagnostic Procedure 3---7..............................................

4. PLATENS

Description 4 --- 1......................................................................

Platen Diagnostic Procedure 4---2.......................................................

Platen Removal and Replacement 4---3..................................................

Platen Removal 4 --- 3...............................................................

Platen Replacement 4 --- 5...........................................................

Platen Alignment 4 --- 6.................................................................

5. POSITION CONTROL

Description 5 --- 1......................................................................

Troubleshooting 5 --- 2..................................................................

Wiring Diagram 5 --- 3...................................................................

Lift Motor 5 --- 4........................................................................

Diagnostic Procedure 5---4..........................................................

Setting Lift Motor Limit Switches 5---4................................................

Removing and Replacing the Lift Motor 5---5..........................................

Linear Potentiometer 5 --- 6..............................................................

TABLE OF CONTENTS

6. MISCELLANEOUS COMPONENTS

Hourmeter 6 --- 1.......................................................................

Drive Motor 6 --- 2......................................................................

Description 6 --- 2...................................................................

Drive Train Troubleshooting Guide 6---3..............................................

Drive Motor Removal and Replacement 6---4..........................................

Drive Motor Components Wiring Diagram 6---6........................................

Speed Sensor Removal and Replacement 6---7...........................................

Drive Roller and Bearing Block Removal and Replacement 6---8............................

Idle Roller Tension Blocks 6---10..........................................................

Wipers 6 --- 1 1..........................................................................

7. MAINTENANCE

Service Checks 7 --- 1...................................................................

INTRODUCTION

CHAPTER 1

BLODGETT CONVEYOR GRILL

1 --- 1

UNIT DESCRIPTION

The Blodgett Conveyor Grill is a microprocessor

controlled conveyorized belt cooking grill built by

Blodgett. The Blodgett Conveyor Grill uses two Tef-

loncoated woven fiberglass belts each encircling

an electrically heated aluminum cooking platen.

Food placed on the lower belt travels over a pre-

heat zone where the product is slightly thawed (in

the case of frozen food) and then between the up-

per and lower platens where it is cooked on both

sides simultaneously. After cooking, the food falls

into a receiving pan. During the cooking process,

wipers remove excess grease from the belts and

collect it in a grease pan or bucket in the bottom of

the unit.

The conveyor cooking technique assures consis-

tent, dependable results. By precisely controlling

all the variables --- cooking time, temperature, belt

speed and product contact pressure --- the possi-

bility of improper cooking due to operator error or

inconsistency is greatly minimized. However, it is

still the responsibility of the person(s) operating the

machine to periodically check that the food is prop-

erly cooked. The microprocessor controller pro-

vides six easy to use programmable menu selec-

tions at the push of a button.

Control Panel

Upper&LowerConveyorBelts

Idle Roller

Crumb Tray

Food Receiving Pan

Door Panel

Grease Pan

Lower Platen Deck

Upper Platen Deck

Drain Trough

Baffle & Pan Guide

Lower Wiper Assembly

Upper Wiper Assembly

Emergency Lift Button

Lift Enable Button

Main Power Switch

FIGURE 1

INTRODUCTION

1 --- 2

SPECIFICATIONS

DIMENSIONS AND WEIGHT SPECIFICATIONS

TBG36-CM/AA

Counter Model

TBG36-FM/AA

Floor Model

TBG36-S/AA

Stackable Model

Width 35.75” (91 cm) 35.75” (91 cm) 43” (109 cm)

Height 31.5” (80 cm) 49.5” (126 cm) 69” (175 cm)

Depth 33.75” (86 cm)* 33.75” (86 cm)* 33.75” (86 cm)*

Weight

Crated

Uncrated

680 lbs (308 kg)

580 lbs (263 kg)

790 lbs (353 kg)

690 lbs (313 kg)

1545 lbs (701 kg)

1445 lbs (655 kg)

NOTE: * Includes 1.5” ( 3.81 cm) box on rear cover.

TABLE 1

TBG36-CM/AA, TBG36-FM and TBG36-S/AA ELECTRICAL SPECIFICATIONS

Hz Volts Phase Amps

60/50 208 3 50

60/50 220 3 47

60/50 240 3 43

60/50 440 3 24

60/50 480 3 22

60/50 380 3 27

60/50 415 3 25

A 3 phase, 50/60 Hz, 3-wire grounded equipment branch circuit, permanently connected in accor-

dance with applicable articles of ANSI/NFPA 70 (NECcode), is required. The stack capacity unit

requires two identical circuits.

Provision is made for 1-1/2” trade size conduit for incoming power. ULListed reducing seals (do-

nut washers) will be required if a smaller size fitting is used. See the Electrical Installation Manual,

P/N 31-12-11343 for details.

Stack capacity (TBG36-S) model requires (2) power feeds, (1) for each cooking section. The stack

capacity design is not currently UL listed in Canada.

TABLE 2

BLODGETT CONVEYOR GRILL

1 --- 3

REQUIRED SERVICE TOOLS

In addition to tools normally used when servicing

appliances, you may need the following tools:

These tools can be ordered individually from Blod-

gett Technical Service (888-992-6624 phone;

802-860-3784 fax) using the Blodgett part num-

bers shown or a complete kit of these items is avail-

able from Blodgett under part number G0235, TBG

Service Tools Kit. In either case, the tools will be

supplied at cost with no mark-up on a one-time ba-

sis. Replacement tools will be billed at the usual

dealer/agency price.

A Service Parts Replacement Kit (part number

G0236) is also available. This kit contains parts that

normally require replacement and a few critical

components. This kit will be billed at full price with

replacements made for warranty usage when ac-

companied by complete documentation.

QTY DESCRIPTION P/N

1Digital Multimeter AmprobeAM-1260 or similar;

Blodgett P/N G0237

1Clamp-on ammeter Amprobemodel RS-3 or similar;

Blodgett P/N G0238

124 VDC lift motor power supply (optional) Blodgett P/N G0239

1MolexMini fit crimping tool Molex11-01-0197-P;

Blodgett P/N G0240

1MolexMini fit pin extraction tool Molex11-03-0044;

Blodgett P/N G0241

20 MolexMini fit Jr. female pins Molex39-00-0039;

Blodgett P/N G0242

1Anti-seize compound, food grade, can McMaster 1404K11 or similar;

Blodgett P/N G0243

TABLE 3

ELECTRICAL SAFETY

De-energizing the unit

For servicing purposes throughout this manual,

two distinct operations are referred to frequently

and their meaning must be understood clearly for

your safety. One is the use of the Main Power

Switch and the other is “disconnect supply power”.

The main power switch turns the Blodgett Convey-

or Grill on and off for all user purposes. When work-

ing inside the machine, however, the main power

feed wires and over-temperature protection ther-

mostat wiring are very much alive and remain so

whetherthemainpowerswitchisonoroff.

To de-energize the machine completely, the

supply power must be disconnected at the cir-

cuit breaker or (fused) disconnect switch la-

beled for this unit.

NOTE: Stack capacity units have separate power

supplies. Be sure the power has been

turned off for the appropriate unit.

INTRODUCTION

1 --- 4

WIRING DIAGRAMS

FIGURE 2

BLODGETT CONVEYOR GRILL

1 --- 5

FIGURE 3

UNIT CONTROLS

CHAPTER 2

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