TM 9-4910-387-14-2
6-41. PIPING ASSEMBLY-MAINTENANCE INSTRUCTIONS (cont)
a. VACUUM SYSTEM-MAINTENANCE INSTRUCTIONS (cont)
INSPECTION/SERVICING
REPAIR
VACUUM SYSTEM.
a. Check for cracked, broken, or missing parts.
1 COPPER TUBINGS. Repair by
fabrication (fig. 4,
app D).
b. Check for damaged threads.
2 CROSS UNION. Repair by replacement (TM 9-4910-387-24P).
c. Clean with cleaning compound (item 3,
app C) and rag (item
3 CLINCH SLEEVES. Repair by
replacement (item 15, app C).
d. Clean clogged parts by blowing out with air.
REASSEMBLY/INSTALLATION
CAUTION
NOTE
Be sure to aline nuts carefully
Clinch sleeves must be replaced with new items if previously removed.
when installing as improper
alinement will damage the ferrules
Nuts are not part of the copper tubings, but are part of the components to
and the copper tubing.
which the tubings are connected.
Each copper tubing has one clinch sleeve and one nut located at each end.
Repeat steps 1 and 2 as required for each tubing.
6-566