PS Magazine - TB 43-PS-438
PS, The Preventative Maintenance Monthly
ISSUE 438
MAY 1989
f
e Hi-Shear High Security Padlock, NSN
hanging on
your arms room door will Jock you out too, armorers, If you negLect PM to
keep it in good operating shape.
But the matching cylinder is not numbered. To keep keys matched to the
Jock, use the etching tool, NSN
5130-00-203±7943,
in the No.
2
Common shop
set to:
Etch the serial number of keys on
their matching cylIndeR.
²³
MAY ´µ
±ach Hi-shear Lock has Its own
maTcheD seT of serial nuMBered keys
²a coNtrol key (wiTh square bow)
aND Two regUlar operaTional keys
(wITh rounD bow)³
´eep cuts and sharp angles make
keys prone To cracking when forcedµ
JIggLe th¶ key, or Tap The lock
lighTLy with a wood or plastIc mallet
To get the key workIng easilyµ
Key Maintenance
±ever use the control key unless you
want to taKe the pLug out of the housing
to service or replace a cylinder or parts.
²eep an eye on the keys. ³f they start
to crack, they'Ll soon break. So, Use
your extra key and order a new cy´inder
and Keys beFre your key breaks inside
the Jock. NSN
5340-0¶-15¶-93¶0
gets
a new cyLinder with two operAting keys
and a control key.
MAY ´µ
²·
Never Frce tµe key into tµe cyLinder
or fOrce it to turn. ³f it goes in or tuRs
µard, puLl PM on the lock.
Padlock Pm
¶ube the cyLinder witµ corrosion pre·
ventive compo¸nd (¹P¹) every six
montµs or so. ºSº
8030¸00¸938-¶947
gets a 16»oz spray can of the com¼
pound. just spray ¹P¹ into the Lock.
Then hoLd the cylinder pointed down
so any excess runs out.
Put tµe key in, o½E¾ and close the
Lock and remove the key. Do this sev¿
eraL times to spread the lube and get
aLL the parts working smoothLy.
Disasse±bly
ÀaKe the lock apart to clean it. You'LL
need a wire brush, ºSN
7920-00¹449¸
6859,
soLvent,
NSN
68¶0¸00-292-
9625,
and the small tip screwdriver,
NSN
5¶20¸00º596-8502,
Árom your
SmaLl Âms Ãepairman's tool kit.
Here's how to take the lock apartÄ
Hold the HSP²label sId· down²in
yOuR handµ ¸nse¹º The control key iN
C
the plug making sure the key
noTches Face The shackleµ
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