Hydraulic Oil (Item 50, Appendix C)
This task covers:
a. Hydraulic Hoses and Tubes Replacement
d. Type 3 Clamp Replacement
b. Type 1 Clamp Replacement
e. Follow-On Maintenance
c. Type 2 Clamp Replacement
Crane in operating position and supported by
suitable lifting device, (TM 9-2320-364-10)
Engine OFF, (TM 9-2320-364-10)
Wheels chocked, (TM 9-2320-364-10)
Tools and Special Tools
Tool Kit, General Mechanics: Automotive
(Item 74, Appendix G)
Cap and Plug Set (Item 8, Appendix G)
18-11. CRANE HYDRAULIC HOSES, TUBES AND FITTINGS REPLACEMENT.
Materials/Parts - Continued
Tags, Identification (Item 88, Appendix C)
Packing, Preformed (Item 226, Appendix F)
The crane hydraulic system operates at oil pressures up to 3100 psi (21,375 kPa). Never
disconnect any hydraulic line or fitting without first dropping the pressure to zero. Failure to
comply may result in serious injury or death to personnel.
Subparagraphs (a) through (d) show all typical connections and clamps used on the crane.
This procedure is used to show the location of hoses, tubes and fittings used on the crane.
It is for reference only. It will never be necessary to remove all hydraulic hoses at one time.
Tag and mark all hoses and tubes prior to removal.
Cap and plug hoses, tubes and fittings after removal.
Hydraulic Hoses and Tubes Replacement.
Some hoses and tubes will not
have preformed packings.
Removal. Loosen fitting (1). Remove
preformed packing (2) and hose (3) from
elbow (4). Discard preformed packing.
Apply hydraulic oil to preformed
Install preformed packing (2) in
fitting (1). Connect fitting and hose
(3) to elbow (4).