TM-9-2350-277-10

CARRIER, M113A3, M577A3, M1059A3, M1064A3, M1068A3 AND M58

TECHNICAL MANUAL; OPERATOR’S MANUAL

TM-9-2350-277-10 - Page 669 of 889

TM 9-2350-277-10

PREVENTIVE MAINTENANCE CHECKS AND SERVICES — Continued

0090 00

ITEM

NO.

INTERVAL

MAN-

HOUR

ITEM TO BE

CHECKED OR

SERVICED

CREWMEMBER

PROCEDURE

EQUIPMENT

NOT READY/

AVAILABLE

IF:

90

Weekly

M17 Periscope

CAUTION

Handle periscope carefully during

removal to avoid damaging the frame

and glass of the periscope.

NOTE

There are no periscopes on the M577A3

and M1068A3 commander’s hatch.

a.

Remove periscope by loosening two

thumbscrews.

b.

Check between carrier wall and periscope

fordirtormoisture

.

Over 50%

vision

obstructed.

0090 00-114

Change 5