Introduction to Maintenance of the M12A1 PDDA
Introduction - cm120740009
Lesson 1. Describe the M12A1 PDDA and Preventive Maintenance Checks and Services Required for Placing the Apparatus Into Operation
Lesson 1/Learning Event 1 - cm120740011
Pump-unit Assembly
Tank-unit Assembly
M2 Water Heater - cm120740014
Fiogure 4. M2 Water Heater and Control Panel.
New-equipment Services
Procedures for Unloading and Preparation for Operation
Preparation for Operation.
Learning Event 2: Describe Servics Required for Placing the Apparatus Into Operation
Figure 6. Lubrication Order
Figure 6. Lubrication Order (cont)
Fueling the M2 Water Heater
Loading Supplies and Protective Clothing
Practice Exercise for Lesson 1 - cm120740024
Instructions - cm120740025
Answer Sheet for Practice Exercise - cm120740026
Lesson 2. Describe Operator Preventive Maintenance Checks and Services for the M12A1 PDDA
Learning Event 1: Describe Operator Checks and Services Required for the Pump Unit
Figure 7. Properly Maintained Battery (Cut-Away View)
During-operation Services.
After-operation Services.
Learning Event 2: Describe Operation Checks and Services Required for the Tank-Unit Assembly and Personnel Shower Unit Assembly
During-operation Services - cm120740033
Learning Event 3: Describe Operator Checks and Services Required for the M2 Water Heater
During-operation Services - cm120740035
Lesson 2/Practice Exercise
Instructions - cm120740037
Lesson 2/Practice Exercise Answers - cm120740038
Lesson 3. Describe Operator Corrective Maintenance on the M12A1 PDDA - cm120740039
Learning Event 1: Describe Troubleshooting the M12A1 PDDA by the Operator
Figure 8. Troubleshooting Table
Figure 8. Troubleshooting Table (cont)
Figure 8. Troubleshooting Table (cont)
Learning Event 2: Describe Operator Corrective Maintenance on the Pump-Unit Assembly
Maintenance of the Fuel Tank (Figure 9 on Page 38).
Figure 9. Fuel Tank, Exploded View
Maintenance of the Drive Belts.
Maintenance of the Hoses.
Figure 11. Checking Generator Belt Tension
Maintenance of the Gun Assembly.
Maintenance of the Tank-unit Assembly.
Figure 12. Hopper-Blender Assembly
Maintenance of the M2 Water Heat
Lesson 3/Practice Exercise
Instructions - cm120740055
Lesson 3/Practice Exercise Answers - cm120740056
Lesson 4. Describe Organizational Corrective Maintenance of the M12A1 PDDA
Learning Event 1: Describe Troubleshooting of the M12A1 PDDA at Organizational Level
Figure 13. Troubleshooting Table
Figure 13. Troubleshooting Table (cont) - cm120740060
Figure 13. Troubleshooting Table (cont) - cm120740061
Learning Event 2: Describe Organizational Correcttive Maintenance of the Pump-Unit Assembly
Fuel quantity gage
Pressure gage
Voltage regulator.
Battery
Drive Belts
Gun Assembly.
Figure 14. Gun Assembly Ball Valve, Exploded View
Assembly is the reverse of disassembly
Reassembling Gun.
Learning Event 3: Describe Organizational Corrective Maintenance on the Tank-Unit Assembly, Personnel Shower Unit Assembly, and the M2 Water Heater
Figure 15. Foot-Valve Assembly, Exploded View
Control Panel - cm120740074
Figure 16. Time Delay Relays
Figure 17. Main Electrical Power Cable
Figure 18. Fuel-Hose Assembly
Ignition System.
Figure 19. Nozzle Holder and Ignition Plug
Spark arrester
Lesson 4/Practice Exercise - cm120740081
Instructions - cm120740082
Lesson 4/Practice Exercise Answers - cm120740083
Maintenance of the M12A1 PDDA
Introduction - cm120740009
Lesson 1. Describe the M12A1 PDDA and Preventive Maintenance Checks and Services Required for Placing the Apparatus Into Operation
Lesson 1/Learning Event 1 - cm120740011
Pump-unit Assembly
Tank-unit Assembly
M2 Water Heater - cm120740014
Fiogure 4. M2 Water Heater and Control Panel.
New-equipment Services
Procedures for Unloading and Preparation for Operation
Preparation for Operation.
Learning Event 2: Describe Servics Required for Placing the Apparatus Into Operation
Figure 6. Lubrication Order
Figure 6. Lubrication Order (cont)
Fueling the M2 Water Heater
Loading Supplies and Protective Clothing
Practice Exercise for Lesson 1 - cm120740024
Instructions - cm120740025
Answer Sheet for Practice Exercise - cm120740026
Lesson 2. Describe Operator Preventive Maintenance Checks and Services for the M12A1 PDDA
Learning Event 1: Describe Operator Checks and Services Required for the Pump Unit
Figure 7. Properly Maintained Battery (Cut-Away View)
During-operation Services.
After-operation Services.
Learning Event 2: Describe Operation Checks and Services Required for the Tank-Unit Assembly and Personnel Shower Unit Assembly
During-operation Services - cm120740033
Learning Event 3: Describe Operator Checks and Services Required for the M2 Water Heater
During-operation Services - cm120740035
Lesson 2/Practice Exercise
Instructions - cm120740037
Lesson 2/Practice Exercise Answers - cm120740038
Lesson 3. Describe Operator Corrective Maintenance on the M12A1 PDDA - cm120740039
Learning Event 1: Describe Troubleshooting the M12A1 PDDA by the Operator
Figure 8. Troubleshooting Table
Figure 8. Troubleshooting Table (cont)
Figure 8. Troubleshooting Table (cont)
Learning Event 2: Describe Operator Corrective Maintenance on the Pump-Unit Assembly
Maintenance of the Fuel Tank (Figure 9 on Page 38).
Figure 9. Fuel Tank, Exploded View
Maintenance of the Drive Belts.
Maintenance of the Hoses.
Figure 11. Checking Generator Belt Tension
Maintenance of the Gun Assembly.
Maintenance of the Tank-unit Assembly.
Figure 12. Hopper-Blender Assembly
Maintenance of the M2 Water Heat
Lesson 3/Practice Exercise
Instructions - cm120740055
Lesson 3/Practice Exercise Answers - cm120740056
Lesson 4. Describe Organizational Corrective Maintenance of the M12A1 PDDA
Learning Event 1: Describe Troubleshooting of the M12A1 PDDA at Organizational Level
Figure 13. Troubleshooting Table
Figure 13. Troubleshooting Table (cont) - cm120740060
Figure 13. Troubleshooting Table (cont) - cm120740061
Learning Event 2: Describe Organizational Correcttive Maintenance of the Pump-Unit Assembly
Fuel quantity gage
Pressure gage
Voltage regulator.
Battery
Drive Belts
Gun Assembly.
Figure 14. Gun Assembly Ball Valve, Exploded View
Assembly is the reverse of disassembly
Reassembling Gun.
Learning Event 3: Describe Organizational Corrective Maintenance on the Tank-Unit Assembly, Personnel Shower Unit Assembly, and the M2 Water Heater
Figure 15. Foot-Valve Assembly, Exploded View
Control Panel - cm120740074
Figure 16. Time Delay Relays
Figure 17. Main Electrical Power Cable
Figure 18. Fuel-Hose Assembly
Ignition System.
Figure 19. Nozzle Holder and Ignition Plug
Spark arrester
Lesson 4/Practice Exercise - cm120740081
Instructions - cm120740082
Lesson 4/Practice Exercise Answers - cm120740083
Maintenance of the M12A1 PDDA
