Introduction - Cm1204b0007
Lesson 1 Identify Components of the M12A1 PDDA
Figure 1. Three components of the M12A1 PDDA.
Control Panel - Cm1204b0010
Pump
Figure 2. Pump unit assembly and control panel.
Figure 3. Drive pulley.
Figure 4. Discharge hoses and reels.
Figure 5. Gun assembly and nozzles.
Figure 6. Location of connector panel and prime-detergent tank
Describe The Tank Unit Assembly Of The M12A1 PDDA
Figure 8. Appearance and storage of suction hose and blender hose.
Figure 9. Hopper-blender assembly
Figure 10. Foot valve
Describe The M2 Water Heater
Figure 11. MT water heater and control panel
Secondary Components
Power Cable
Caution - Cm1204b0025
Practice Exercise for Lesson 1 - Cm1204b0026
Practice Exercise for Lesson 1 cont'd - Cm1204b0027
Answer to Practice Exercise - Cm1204b0029
Describe Procedures for Starting, Operating, and Stopping the M12A1 PDDA Engine and Pump Unit
Gun Assembly
Figure 13. Removal of slurry nozzle.
Hoses
Figure 15. Checking tension of drive belts.
Figure 16. Checking generator belt tension
Piping and Valves
Air Cleaner Element
Gasoline Engine
Figure 19. Locations of engine shroud and air control handle
Starting the Pump unit Assembly
Figure 20. Sample DA Form 2404
Figure 21. Starting procedure instruction plate
Warnings
Caution - Cm1204b0044
Figure 22. Engine checklist.
Figure 23. Low oil pressure switch/start magneto switch activation
Stop the M12A1 PDDA Engine and Pump Unit
Procedures After a Mission
Cleaning the M12A1 PDDA cont'd
Procedures for Idle Time
Figure 24. Cleaning and storage procedures after a spraying mission
Operate the M12A1 PDDA Under Normal and Unusual Conditions
Figure 26. Correct gage readings.
Tank Unit Assembly
M2 Water Heater - Cm1204b0055
Cold Weather Operation cont'd
Operation in Snow and Ice
Operation in Sand or Dust
Practice Exercise for Lesson 2 - Cm1204b0059
Practice Exercise for Lesson 2 cont'd - Cm1204b0060
Answer to Practice Exercise - Cm1204b0061
Describe the Procedures for Pumping Water and Loading the Tank with Water
Loading Water From A Natural Water Source
Figure 28. Hose connections for loading the tank unit from a natural water source.
Figure 29. Close valve 4.
Pump Water From A Natural Water Source Without Loading the Tank
Pump Water From A Natural Water Source Without Loading the Tank cont'd
Practice Exercise for Lesson 3 - Cm1204b0068
Practice Exercise for Lesson 3 cont'd - Cm1204b0069
Answers to Practice Exercise
Describe the Procedures for Heating Water Using the M12A1 PDDA
Connecting the M2 Water Heater
Figure 32. Fuel hose assembly
Connecting the M2 Water Heater cont'd
Figure 33. Configuration for heating water in the tank unit
Figure 34. M2 water heater fuels and pressures
Stopping the M2 Water Heater
Heat Water From A Natural Water Source
Connect the M2 Water Heater
Starting and Stopping Procedures
Starting and Stopping Procedures cont'd - Cm1204b0082
Starting and Stopping Procedures cont'd - Cm1204b0083
Practice Exercise for Lesson 4 - Cm1204b0084
Practice Exercise for Lesson 4 cont'd
Answer to Practice Exercise - Cm1204b0087
Describe the Procedures for Loading, Metering, and Dispersing Substances Using the M12A1 PDDA
Figure 36. Valve 4 control.
Meter Foam With Water
Spraying
Load Decontaminants
Load. Mix, and Spray Decontaminants Using the M12A1 PDDA
Mix Decontaminants
Figure 38. Area coverage by slurry
Figure 39. Arrangement of the six top shower sections
Figure 40. Assembling horizontal and vertical supports
Figure 41. Rotation of horizontal supports
Figure 42. Personnel shower assembly
Figure 43. Showering personnel with water from the tank
Figure 44. Showering personnel with water drawn from a natural water source
Operation of the Personnel Shower
Practice Exercise for Lesson 5
Practice Exercise for Lesson 5 cont'd
Answer to Practice Exercise - Cm1204b0105
Operation of the M12A1 PDDA
Lesson 1 Identify Components of the M12A1 PDDA
Figure 1. Three components of the M12A1 PDDA.
Control Panel - Cm1204b0010
Pump
Figure 2. Pump unit assembly and control panel.
Figure 3. Drive pulley.
Figure 4. Discharge hoses and reels.
Figure 5. Gun assembly and nozzles.
Figure 6. Location of connector panel and prime-detergent tank
Describe The Tank Unit Assembly Of The M12A1 PDDA
Figure 8. Appearance and storage of suction hose and blender hose.
Figure 9. Hopper-blender assembly
Figure 10. Foot valve
Describe The M2 Water Heater
Figure 11. MT water heater and control panel
Secondary Components
Power Cable
Caution - Cm1204b0025
Practice Exercise for Lesson 1 - Cm1204b0026
Practice Exercise for Lesson 1 cont'd - Cm1204b0027
Answer to Practice Exercise - Cm1204b0029
Describe Procedures for Starting, Operating, and Stopping the M12A1 PDDA Engine and Pump Unit
Gun Assembly
Figure 13. Removal of slurry nozzle.
Hoses
Figure 15. Checking tension of drive belts.
Figure 16. Checking generator belt tension
Piping and Valves
Air Cleaner Element
Gasoline Engine
Figure 19. Locations of engine shroud and air control handle
Starting the Pump unit Assembly
Figure 20. Sample DA Form 2404
Figure 21. Starting procedure instruction plate
Warnings
Caution - Cm1204b0044
Figure 22. Engine checklist.
Figure 23. Low oil pressure switch/start magneto switch activation
Stop the M12A1 PDDA Engine and Pump Unit
Procedures After a Mission
Cleaning the M12A1 PDDA cont'd
Procedures for Idle Time
Figure 24. Cleaning and storage procedures after a spraying mission
Operate the M12A1 PDDA Under Normal and Unusual Conditions
Figure 26. Correct gage readings.
Tank Unit Assembly
M2 Water Heater - Cm1204b0055
Cold Weather Operation cont'd
Operation in Snow and Ice
Operation in Sand or Dust
Practice Exercise for Lesson 2 - Cm1204b0059
Practice Exercise for Lesson 2 cont'd - Cm1204b0060
Answer to Practice Exercise - Cm1204b0061
Describe the Procedures for Pumping Water and Loading the Tank with Water
Loading Water From A Natural Water Source
Figure 28. Hose connections for loading the tank unit from a natural water source.
Figure 29. Close valve 4.
Pump Water From A Natural Water Source Without Loading the Tank
Pump Water From A Natural Water Source Without Loading the Tank cont'd
Practice Exercise for Lesson 3 - Cm1204b0068
Practice Exercise for Lesson 3 cont'd - Cm1204b0069
Answers to Practice Exercise
Describe the Procedures for Heating Water Using the M12A1 PDDA
Connecting the M2 Water Heater
Figure 32. Fuel hose assembly
Connecting the M2 Water Heater cont'd
Figure 33. Configuration for heating water in the tank unit
Figure 34. M2 water heater fuels and pressures
Stopping the M2 Water Heater
Heat Water From A Natural Water Source
Connect the M2 Water Heater
Starting and Stopping Procedures
Starting and Stopping Procedures cont'd - Cm1204b0082
Starting and Stopping Procedures cont'd - Cm1204b0083
Practice Exercise for Lesson 4 - Cm1204b0084
Practice Exercise for Lesson 4 cont'd
Answer to Practice Exercise - Cm1204b0087
Describe the Procedures for Loading, Metering, and Dispersing Substances Using the M12A1 PDDA
Figure 36. Valve 4 control.
Meter Foam With Water
Spraying
Load Decontaminants
Load. Mix, and Spray Decontaminants Using the M12A1 PDDA
Mix Decontaminants
Figure 38. Area coverage by slurry
Figure 39. Arrangement of the six top shower sections
Figure 40. Assembling horizontal and vertical supports
Figure 41. Rotation of horizontal supports
Figure 42. Personnel shower assembly
Figure 43. Showering personnel with water from the tank
Figure 44. Showering personnel with water drawn from a natural water source
Operation of the Personnel Shower
Practice Exercise for Lesson 5
Practice Exercise for Lesson 5 cont'd
Answer to Practice Exercise - Cm1204b0105
Operation of the M12A1 PDDA
