OCENCO M-20 Instruction Manual Download Page 2

Page 2 of 15 

Contents: 

 

1.  Introduction 

 
 

2.  Description of the M-20 

 

2.1  Classification 
2.2  Limitations 
2.3  Components 
2.4  Theory of Operation 
2.5  Specifications 
 
 

3.  M-20 Care and Maintenance 

 

3.1  How to Care for the M-20 
3.2  How to Inspect the M-20 

 
 

4.  Donning Instructions 

 

4.1  When to use the M-20 
4.2  How to use the M-20 
4.3  Transition from the M-20 to the EBA 6.5. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 

Summary of Contents for M-20

Page 1: ...Page 1 of 15 Ocenco Incorporated M 20 Self Contained Self Rescuer Instruction Manual Manual No N22069 Revision A ECN 3071...

Page 2: ...ion 2 2 Limitations 2 3 Components 2 4 Theory of Operation 2 5 Specifications 3 M 20 Care and Maintenance 3 1 How to Care for the M 20 3 2 How to Inspect the M 20 4 Donning Instructions 4 1 When to us...

Page 3: ...simple steps see section 5 4 and these six steps should be practiced over and over by the trainees until it becomes second nature Inquiries regarding Ocenco Breathing Devices should be directed to Oc...

Page 4: ...tional Safety and Health NIOSH and the Mine Safety and Health Administration MSHA for a duration of 10 minutes The duration of all self rescuers can vary depending on the user s oxygen consumption rat...

Page 5: ...y The clear BASE has integral belt loops and a base overcase that is affixed to the bottom of the base to provide protection from shock and vibration 2 3 3 LATCH Assembly The stainless steel LATCH ban...

Page 6: ...Page 6 of 15 M 20 Case 1 Cover 2 Overcase Cover 3 Latch Band 4 Base 5 Overcase Base 6 S Hook 7 Tamper Ball 8 Lever 5 4 2 3 1 1 7 3 2 5 4 8 6...

Page 7: ...o the Breathing Bag and automatically increases the oxygen flow during high work rates 7 Gauge the Gauge indicates the amount of oxygen in the Cylinder The green zone on the Gauge indicates the Cylind...

Page 8: ...mbly 3 4 11 10 1 2 5 9 12 6 7 8 1 Noseclip yellow 2 Mouthpiece yellow 3 Neck Strap yellow 4 Neck Strap O ring 5 Cylinder 6 Oxygen Controller 7 Gauge 8 Activation Cable 9 Scrubber 10 Breathing Bag 11 R...

Page 9: ...es the oxygen controller will supply more oxygen than the user can consume and excess gas exits the Relief Valve The starting of the oxygen flow the increased flow rate during high work rates and the...

Page 10: ...Page 10 of 15 M 20 Theory of Operation 3 2 4 5 1 1 Constant Flow of Oxygen 2 Demand Flow of Oxygen 3 Inhalation 4 Exhalation 5 Relief Valve Exhaust...

Page 11: ...there should be consideration for accountability of the condition of the self rescuer when it is returned Teaching trainees to care for the M 20 must be a combination of instruction and enforcement Yo...

Page 12: ...ndications of high force impacts Indications of high force impacts are listed below If any of these signs are present the M 20 must be removed from service a Case cracked burned deformed or excessivel...

Page 13: ...Fire alarm or carbon monoxide alarm 5 Sudden increase of air temperature 6 Sound of explosion 7 Vibrations of explosion 8 Interruption of ventilation 9 Someone around you has difficulty breathing or p...

Page 14: ...e straps and pull case apart discard cover and rubber seal 4 Open oxygen valve fully counterclockwise in direction of arrow 5 Remove M 20 neck strap 6 Place EBA 6 5 neck strap overhead 7 Inhale from M...

Page 15: ...g maintenance and other information as supplied in this manual are essential to the effective use of the EBA 6 5 The user should be familiar with Instructions for Use 1 12 before attempting to use the...

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