CONFIDENTIAL (When Mine Setting Code strip is attached)
MEFC No:
DATE:
MEFC No:
DATE:
LOT NO:
UIC:
SW550-FO-PMS-110 SUPPLEMENT K 01 FEB 1990
ASSEMBLY/MAINTENANCE MASTER RECORD
FOR MINES MK 67
MINE SETTING CODE (FROM MINE SETTING SHEET FOLDER)
TABS CUT ON FIRING MECHANISM
AND ADAPTER
(All actions performed IAW applicable pubs)
XPL LOT/
WEAPON
LONG
SHORT
ITEM
MK
MOD
OA
ACTION
DATE
SUPERVISOR
INSPECTOR
SERIAL
CONFIG
CYCLE
CYCLE
NUMBER
Mine Main Assembly
4
Adapter
141
Firing Mech or TDD
Battery
132
Exploder
19
Arming Device
2
Explosive Section
13
Battery
46
Adapter
136
LOT/SER NO.
BATTERY MK 131 MOD
BTRY ACTIVATED DATE
SEE REVERSE SIDE FOR INSTRUCTIONS
Classified by:
Review on:
CONFIDENTIAL (When Mine Setting Code strip is attached)
MN2f01006
Figure 1-6.--Supplement K, Master Record for Mine Mk 67.
arming-device well covers, and blanking plates,
STEEL SURFACES
corrosion may be removed by using a glass bead
Steel is used in the manufacturing of Mine Cases
blaster.
Mk 65, 64, 63, and 62; as well as the Mk 56's anchor.
Steel surfaces that have a plating material are
Steel is susceptible to a well-known and easily
subject to corrosion in the form of a white powder. This
recognized form of metal corrosion--the familiar
white powder may be removed by using a cloth
reddish-colored rust. When steel starts to corrode, dark
dampened with fresh water. A plated surface with
iron oxide usually forms first. This iron oxide may act
discoloration requires no treatment for corrosion,
to protect the steel surface; however, if sufficient
because the plating is still offering sacrificial
oxygen and moisture are present, the oxide converts to
protection for the base metal. Corrosion of the base
hydrate ferric oxide--common red rust.
metal, commonly referred to as rust, will occur after
The procedure to remove corrosion from the steel
the plating is destroyed. Rust from plated surfaces may
surfaces of mines depends on the protective coating on
be removed by using copper wool. Flange surfaces at
the surfaces. Minor corrosion scratches or burrs may
watertight openings that have had corrosion removed
be removed from surfaces with no protective coating,
must be protected with a thin coat of grease and other
such as flanges at watertight openings, by hand
areas where base metal is exposed must be protected
polishing with abrasive cloth or copper wool. These
with primer.
flanged surfaces are then cleaned with a cleaning
Painted steel surfaces with chipped, loose,
compound solvent and protected with a thin coat of
blistered, or cracked paint or corrosion of the base
grease. With respect to flanges on tail covers,
1-11