TM 9-2320-279-34-2
Change 4
13-90.11
Frame Maintenance Instructions (Cont)
b. Cleaning and Inspection.
WARNING
Adhesives, solvents, and sealing compounds can burn easily, can give off harmful
vapors, and are harmful to skin and clothing. To avoid injury or death, keep away
from open fire and use in well-ventilated area. If adhesive, solvent, or sealing
compound gets on skin or clothing, wash immediately with soap and water.
(1)
Clean all metal parts with dry cleaning solvent.
(2)
Inspect threads of end cap and cylinder for nicks and burrs.
(3)
Inspect cylinder for grooves on inside wall.
(4)
Inspect head and piston for nicks and gouges.
(5)
Remove nicks and burrs with crocus cloth. Clean up threads with thread chasing tool.
(6)
Lubricate piston rod, head, piston, and inside of cylinder with oil.
(7)
Replace piston rod if scored, pitted, bent or damaged.
(8)
Replace bushing if inside diameter is out of round more than 0.005 in. (0.127 mm) or inside
diameter is greater than 3.007 in. (76.37 mm).
c. Assembly.
NOTE
·
There are two types of lift cylinders. Model A will have 3138281 stamped on outside
of cylinder. Model B will have 3173418 stamped on outside of cylinder.
·
Perform steps (1, 2, 3, and 4) for Model A.
·
Perform steps (1.1, 2.1, 3.1, and 4.1) for Model B.
