TM 10-3530-207-14
Table 4-1. Unit Preventive Maintenance Checks and Services for Clothing Repair Shop.
ITEM
INTERVAL
LOCATION
PROCEDURE
NOT FULLY MISSION
NO.
ITEM TO CHECK/
CAPABLE IF:
SERVICE
DARNING
SEWING
MACHINE -
continued
17
Weekly
Thread
Inspect thread unwinder for loose or
Missing or broken
unwinder missing bolts, nuts, and screws; for
components
bent or broken components and for
loose mounting. Replace defective
parts, as required.
18
Weekly
Drive belt
Inspect for broken, frayed, and
Broken, loose or
and pulleys
excessively worn drive belt. Inspect
tight belt
belt for loose mounting on the
pulleys. Inspect pulleys for cracked,
chipped, or broken edges. Check for
a 1/2 inch deflection of belt (para. 3-
10) midway between pulleys.
19
Weekly
Bobbin winder
Inspect bobbin winder for bent,
Bent or broken
broken, loose or missing
components. Inspect for excessively
worn leather brake, for incorrect
tension of thread tension spring,
and for improper tension of the
pulley with the drive belt. Replace
damaged bobbin winder. Adjust
bobbin winder (para. 2-12) if out of
adjustment. If drive belt tension is
improper, adjust belt (para. 3-10).
4-16
