TM-9-2350-358-BD
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A6
TECHNICAL MANUAL; OPERATOR’S, UNIT, AND DIRECT SUPPORT SUPPORT MAINTENANCE
MARCH 1994
TM-9-2350-358-BD - Page 232 of 343
TM 9-2350-358-BD
11-11. HYDRAULIC TUBE AND HOSE REPAIR (HIGH PRESSURE) - CONTINUED
WARNING
Tubing must be fully inserted into fitting and the nut tightened as specified in this procedure to
prevent leakage and injury to personnel from high pressure hydraulic fluid In the event of fitting
blow-off.
Excessive tightening on the nut beyond the recommended level may affect performance.
8.
Install the nut onto the nipple hand tight.
Ensure tube is fully inserted into the fitting (bottom out) Mark the nut in
relation to the adapter.
Tighten nut 1-1/2 turns.
NOTE
•
The ORS tube fitting assemblies are designed for reuse and
can be reinstalled by tightening nut until a sharp increase in
resistance is felt (approximately 1/4 turn beyond hand tight)
•
If connections must be temporarily disassembled, use a
threaded plug to contain the ORS tube fitting components
and keep contaminants from entering the system
9.
Fill and bleed hydraulic system.
10.
Record the BDAR action taken.
When mission is complete, as soon as practical, repair the equipment/system
using standard maintenance procedures.
Option 3:
High pressure tubing repair small damage (1/4-inch or less).
Limitations:
None
Personnel/Time Required:
•
1 soldier
•
0.5 - 2.0 hours
11-14
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