MK-20 Flashcards
What lubricants are authorized for use with the MK-20?
Only MIL-PRF-27617 Type III grease.
Who can authorize a substitution of cleaning/germicidal solution?
An authorized representative of a medical department.
What DONT you use to clean a MK20?
Freon, bleach, trichloroethylene
What is the definition of clean for a MK20?
Free of all loose scale, rus, grit, filings, dirt, and foreign substances when viewed by an unaided eye. Free of oil, grease, and other foreign materials.
What must the tools and parts of the Mk20 be kept free of?
Oil, grease, rust, and other contaminations.
What do these non calendar periodicity codes mean? R. U.
R. Situational requirement
U. Unscheduled maintenance
What do these Inactive equipment periodicity codes mean? LU, PM, SU, OT.
LU: Lay-up maintenance
PM: Periodic maintenance
SU: Start-up maintenance
OT: Operational test.
What is the PMS MIP for the MK20?
5921/172
In an O-ring, what should the diameter of the O-ring NOT exceed?
Stretch should not exceed over 5%.
What are the acceptable germicidal cleaning solutions for MK20?
Wescodyne- 6oz/1gal ratio. Sanizide- Dont dilute Advanced TBE- Dont dilute Bi-arrest 3- 2 pumps with 16z fresh water. Confidence plus- 1oz/1gal ratio.
What is the Over-bottom pressure of the EGS when used with the MK-20?
135psi.
What is the Over-bottom pressure of the EGS when left topside?
150psi
What is the over-bottom of the EGS 1st stage when it provides air to Poseidon 2nd stage AND a MK-20 (Standard SCUBA/SSD config.)
135psi
What is the over bottom of the EGS first stages when in CWID config?
122-125psi- second stage/poseidon post.
135psi- MK20 post.
What is the most important step to eliminate viruses and bacteria from the FFM?
The act of briskly scrubbing all surfaces with disinfectant.
