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TABLE OF CONTENTS
GENERAL............................................................................. 3
Introduction ........................................................................ 3
Battery Configuration................................................................. 4
Tools ............................................................................. 4
Operator Control Location ............................................................. 4
REMOVAL AND REPLACEMENT OF PARTS ................................................. 5
Control Panels ...................................................................... 5
Potentiometer (Solid State Models) ...................................................... 5
Computer Control ................................................................... 5
Heating Elements ................................................................... 6
Probe ............................................................................ 7
High Limit Thermostat ................................................................ 7
Lift Assist Springs ................................................................... 8
Tilt Switch ......................................................................... 9
Filter-ready Return Valve Switch ........................................................ 9
SERVICE PROCEDURES AND ADJUSTMENTS ............................................. 10
Thermistor Probe Resistance Chart ..................................................... 10
Temperature Control Calibration ....................................................... 10
Temperature Control Test ........................................................... 10
Heating Element Test ............................................................... 11
Melt Temperature Calibration (Solid State Control) ......................................... 12
Control Board Test (Solid State Control) ................................................. 12
Computer Control Test............................................................... 13
Lift Assist Spring Adjustment .......................................................... 13
Tilt Switch Adjustment ............................................................... 13
Basket Lift Arm Adjustment ........................................................... 14
ELECTRICAL OPERATION .............................................................. 14
Component Function ................................................................ 14
Component Location ................................................................ 15
Control Box ...................................................................... 16
Electronic Control (Solid State) Full Vat Sequence of Operation ............................... 17
Computer Control Full Vat Sequence of Operation .......................................... 17
Battery and Inter Plumb Filter Sequence of Operation ....................................... 18
Basket Lift Sequence of Operation ...................................................... 18
Computer Control Board Diagnostics .................................................... 19
Schematics ....................................................................... 21
Full Vat With Solid State Control ................................................... 21
Split Vat With Solid State Control................................................... 22
Full Vat With Computer Control .................................................... 23
Split Vat With Computer Control.................................................... 24
Filter Ready, Inter Plumb Options ................................................... 25
Wiring Diagram Index ............................................................... 26
TROUBLESHOOTING .................................................................. 60
Computer Control Harness Pin-outs Chart ................................................ 60
Solid State Control.................................................................. 60
Computer Control .................................................................. 61
Serve Station ..................................................................... 61
© VULCAN 1996
