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Figure 1. Anti-inversion Net Presser Foot.
Figure 3. Fabricating 32-pound Weight.

TM-10-1670-327-23-P MC-6 Personnel Parachute System NSN 1670-01-527-7537 Manual
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TM 10-1670-327-23&P
0113 00
SPRING COMPRESSION TEST TUBE
CAUTION
Based on the manufacturer, the inside diameter of the PVC pipe may vary. Be sure to
purchase the PVC pipe prior to the fabrication of the 32-pound weight. Slight dimensional
modifications to the PVC pipe may be necessary to ensure the 32-pound weight fits
inside the PVC pipe. Failure to procure the PVC pipe first may result in the improper fit of
the 25-pound weight.
Tools
Materials/Parts
Drill, Electric, 5/8-in Chuck
Pipe, PVC, 8-in
Welding Machine
Sheet Metal, Aluminum, 1/8-IN Thick
Rod, Aluminum, 3/8-IN Diameter
Weighted Material
Test Set, Spring Compression
(Composition of assembled components listed
above.)
Fabricate the test tube as follows:
1. Acquire a piece of pipe (PVC pipe) with an inside dimension of 8-inches (minimum). The outside
dimensions should be around 8-1/2-inches.
2. Cut the pipe to a length of 36-inches and determine a top and bottom.
3. Install the inspection slot by placing a mark 1-1/2-inches up from the bottom. Make an additional mark
7-1/2-inches up from the bottom.
4. Cut a 1-inch wide slot from the 1-1/2-inch mark to the 7-1/2-inch mark. The top and bottom slots are
rounded, but this is not required.
NOTE
The purpose of the slot is to view the spring when compressed under the 32-pound
weight.
Rounded
Corners
Figure 2. Viewing Slot.
0113 00-3






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