TM 9-2330-373-14 & P
4-27.
AIR HALF-COUPLING (cont)
INSPECTION AND REPLACEMENT
1. Inspect half-coupling body for damaged threads
or cracks. Replace coupling if damaged.
2. Inspect packing ring for excessive wear and
INSTALLATION OF PACKING RING
1. Clean groove in coupling from which packing
ring was removed.
2. Partially collapse ring with fingers and insert one
side of ring flange in groove.
3. Push ring into place. Face of ring must lie flat,
with no twist or bulge.
INSTALLATION
1. Screw threads of half-coupling over externally threaded fitting of connector and tighten until an airtight seal is
made.
2. Make sure face of coupling is vertical and toward left side of semitrailer.
4-28.
HOSE, TUBING AND FITTINGS (AIR AND HYDRAULIC)
THIS TASK COVERS
a.
General
Troubleshooting Reference
b.
Serviceability test
Item No
c.
Removal of hydraulic hose
5. Brakes will not release
d.
Installation of hydraulic hose
6. No brakes or weak brakes
e.
Removal of tube fitting
f.
Installation of tube fitting
g.
Splicing nonmetallic tubing
Test Equipment Required:
None
Personnel Required:
1
GENERAL
Hydraulic and air tubing and fittings are not ordinarily removed except for replacement. Refer to page 4-74 for air system
schematic and page 4-75 for hydraulic system schematic.
TA 314793
4-73