Table Of Contents - Siemens Maxum II PD PA AP Service Manual

Valves and oven components
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1
Oven Types..................................................................................................................................................7
1.1
Isothermal Air Bath Oven Heater System (Single and Split)....................................................8
1.1.1
Heater Assembly Purge...........................................................................................................8
1.1.2
Temperature Limiting.............................................................................................................10
1.2
Programmed Temperature Air Bath Oven Heater System.....................................................11
1.2.1
IS Probe and Barrier..............................................................................................................12
1.3
Isothermal Airless Oven Heater System................................................................................13
1.4
Maintenance Considerations for Airbath and Airless Ovens..................................................15
1.5
Airbath Heater Assembly Replacement.................................................................................16
1.6
Airless Heater Replacement..................................................................................................16
1.7
Modular Oven Heater System................................................................................................18
1.8
Maintenance Considerations for Modular Ovens...................................................................19
2
Using Small Tubing Fittings........................................................................................................................21
3
Temperature Control Module (TCM)..........................................................................................................23
3.1
Replacing a TCM...................................................................................................................24
4
Valves.........................................................................................................................................................27
4.1
Solenoid Valves.....................................................................................................................27
4.1.1
Solenoid Valve Control Module (SVCM)................................................................................27
4.1.2
Replacing a Solenoid Valve...................................................................................................30
4.2
Liquid Injection Valve.............................................................................................................31
4.2.1
SLIV Maintenance Overview..................................................................................................37
4.2.2
Liquid Injection Valve Component Locations.........................................................................38
4.2.3
Troubleshooting.....................................................................................................................39
4.2.4
Service Procedures................................................................................................................40
4.2.5
Siemens Liquid Injection Valve Specifications.......................................................................44
4.3
Model 50 Valve......................................................................................................................45
4.3.1
Basic Maintenance: Model 50 Valve......................................................................................46
4.3.2
Preventing Port to Port Leaks................................................................................................46
4.3.3
Maintenance Considerations..................................................................................................46
4.3.4
Model 50 Valve Maintenance Procedure...............................................................................48
4.3.5
Model 50 Valve Specifications...............................................................................................53
4.4
Model 20 Valve......................................................................................................................54
4.4.1
Basic Maintenance.................................................................................................................54
4.4.1.1
Maintenance Considerations..................................................................................................54
4.4.1.2
Diagnostic Procedures...........................................................................................................56
4.4.1.3
Model 20 Valve Cap Maintenance Procedure........................................................................57
4.4.2
Disassembly and Cleaning.....................................................................................................59
4.4.2.1
M20 Description.....................................................................................................................59
Maxum II Valves and Oven Components
Service Manual, 10/2018, A5E42019844001
3

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