MODEL H600/P660/L800 GENERAL
F12536 (Rev. A, December 2005)Page 3 of 88
Servicing the Brake Unit ................................................................. 45
Replacement of Brake Band.......................................................... 45
Replacement of Solenoid ............................................................ 45
Brake Adjustment ...................................................................... 45
Electrical Connections .................................................................. 47
Testing Motor Stator Windings ............................................................ 47
Single Phase...................................................................... 47
Three Phase ...................................................................... 49
Testing Motor Current................................................................... 50
Testing Capacitors ..................................................................... 50
BOWL SUPPORT AND LIFT SYSTEM ......................................................... 51
Technical Notes ....................................................................... 51
Bowl Support ......................................................................... 51
Removal ......................................................................... 51
Installation........................................................................ 51
Slideway Clearance Adjustment....................................................... 51
Bowl Lift Nut Assembly Adjustment .................................................... 52
Bowl Clamp Adjustment ............................................................. 52
Bowl to Beater Clearance................................................................ 53
Adjustment - Adjusting Screw Located Under Bowl Support ................................. 53
Adjustment - Stop Screw Located on Left Side of Lift Screw ................................. 53
Bowl Height Sensing ................................................................... 54
Adjustment - Stop Screw Located on Left Side of Lift Screw ................................. 54
Adjustment - Stop Screw Located Under Bowl Support ..................................... 55
Manual Bowl Lift ...................................................................... 55
Handwheel Bracket Assembly ........................................................ 55
Handwheel Adjustment .............................................................. 57
Manual Bowl Lift Screw Assembly ..................................................... 57
Lift Screw Adjustment ............................................................... 58
Bowl Lift Nut Assembly Adjustment .................................................... 58
Power Bowl Lift Motor and Transmission .................................................... 58
Changes ......................................................................... 58
Removal ......................................................................... 58
Disassembling the PBL Transmission .................................................. 59
Disassembling the Hobart PBL Motor ................................................... 60
Reassembly of Hobart PBL Motor and Gear Case ......................................... 61
Reinstalling the PBL Unit ............................................................ 61
Flexa-Gear Belt Adjustment .......................................................... 61
Power Bowl Lift Screw Assembly .......................................................... 62
Power Lift Screw Adjustment ......................................................... 64
Motor Current Test ................................................................. 64
TIMER AND SWITCH PLATE ................................................................ 65
Technical Notes ....................................................................... 65
Electronic Timer Operation / Programming .................................................. 65
Continuous Mixing ................................................................. 66
Using Dial Timer to Set Mixing Time ................................................... 66
Using Preset Keys P1 or P2 to Set Mixing Time .......................................... 66
Programming Preset Keys P1 and P2 Mixing Time ........................................ 67
Removal and Replacement .............................................................. 68
Keypad Test .......................................................................... 69
Timer Service Diagnostics ............................................................... 69
Electronic Timer Upgrade Kit Installation Instructions .......................................... 71
ELECTRICAL OPERATION .................................................................. 73
Component Function ................................................................... 73
Sequence of Operation .................................................................. 74
Control Panel Layout ................................................................... 75
Wiring Diagrams ....................................................................... 77
H600 / L800 Single Phase ........................................................... 78
H600 / L800 Three Phase ............................................................ 79
P660 Single Phase ................................................................. 80
P660 Three Phase ................................................................. 81
TROUBLESHOOTING ...................................................................... 84
Power Flow........................................................................... 84
Mechanical Troubleshooting .............................................................. 86
Electrical Troubleshooting ............................................................... 87
Electronic Timer ....................................................................... 88
© Hobart 2005
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