TM 10-3530-207-14
5-33. DARNING SEWING MACHINE OIL GUARD, NEEDLE BAR CRANK MAINTENANCE.
This task consist of:
a.
Removal
b.
Disassembly
c.
Cleaning
d.
Inspection
e.
Repair
f.
Installation
INITIAL SETUP:
Tools:
Materials/Parts:
General Mechanics Tool Kit (Appendix B, Item 1)
Rag, wiping (Appendix F, Item 2)
Equipment Condition:
Cleaning Solvent (Appendix F, Item 8)
Needle bar and presser bar removed (para. 5-32).
Brush, Medium Bristle (Appendix F, Item 1)
Removal.
(1) Remove setscrews (1 and 2). Scribe a line on the end of the shaft to show where the setscrew is
placed.
(2) Remove belt from lower and upper pulley wheel by rotating wheel.
(3) Remove setscrews (3, 4, and 5).
(4) Remove setscrew (6) through the machine housing.
(5) Drive shaft pulley assembly (8) out and remove needle bar crank assembly (9), pulley (10)
and washer (11).
5-90
