Mold-Masters Hot Runner - Page 5

5.21.5 Inlet Extension with Pressure Sleeve ....................................................5-49
Section 6 - Electrical Testing ...........................................6-1
6.1 Safety .................................................................................................................6-1
6.2 Electrical Wiring Check ....................................................................................... 6-2
6.3 Electrical Safety Testing .....................................................................................6-2
6.3.1 Verify Equipment to its Technical Documentation ......................................6-2
6.3.2 Insulation Resistance Test ........................................................................6-2
6.3.3 Verication of Conditions for Protection by Automatic Disconnection of Supply
6-3
6.3.4 Verication of Continuity of Protective Bonding Circuit .............................. 6-3
6.3.5 Verication of Fault Loop Impedance ........................................................6-3
6.3.6 Thermocouple Continuity Test ...................................................................6-4
6.3.7 Pinch Point Test .........................................................................................6-4
6.3.8 Heating Element Check .............................................................................6-4
6.3.9 Ungrounded Thermocouple Continuity Test ..............................................6-5
6.4 Thermocouple Wiring Guidelines .......................................................................6-5
6.5 Functional Test with a Temperature Controller ...................................................6-5
6.6 Re-testing ...........................................................................................................6-5
Section 7 - Hot Half Assembly .........................................7-1
7.1 Hot Half Assembly ..............................................................................................7-1
7.2 Stack Mold Cavity Plate Installation ...................................................................7-3
Section 8 - System Startup and Shutdown ....................8-1
8.1 Pre-Startup .........................................................................................................8-1
8.2 Startup ................................................................................................................8-2
8.2.1 Standard Hot Runner Systems ..................................................................8-2
8.2.2 Stack Mold Systems ..................................................................................8-3
8.3 Shutdown ............................................................................................................ 8-3
8.3.1 Standard Hot Runner Systems ..................................................................8-4
8.3.2 Stack Mold System ....................................................................................8-4
Section 9 - Color Change .................................................9-1
9.1 General Tips .......................................................................................................9-1
9.2 Procedure A: Simple and E󰀨ective .....................................................................9-1
9.3 Procedure B: More Comprehensive ...................................................................9-2
Section 10 - Hydraulic / Pneumatic Actuators ............ 10-1
10.1 Valve Actuator Installation and Assembly .......................................................10-1
10.2 Pre-Installation ................................................................................................ 10-2
10.3 Cylinder Bottom Assembly .............................................................................. 10-2
10.4 Piston Assembly .............................................................................................10-3
10.4.1 5500 Series Only ...................................................................................10-3
10.4.2 6X00 Series and 7100 Series ................................................................10-3
10.5 Cylinder Top Assembly ...................................................................................10-4
10.6 Valve Pin Finishing of Tip ...............................................................................10-4
10.6.1 5500 Series ............................................................................................10-4
10.6.2 6X00 Series ...........................................................................................10-6
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Hot Runner User Manual
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