TM 55-1520-240-23-6
7-5
REPAIR PERMASWAGE PLUMBING
(Continued)
7-5
11.
Lightly lubricate plug (1) with hydraulic fluid
(E199).
12.
Press in plunger (2). Carefully insert tool into the
tube (3) until cutter (4) is approximately 1/8 inch
away from burr. Release plunger to allow plug to
expand and seal tube.
13.
Rotate knurled body (5) of deburring tool
clockwise while applying slight pressure to
cutter (1). Continue to rotate until cutter rotates
smoothly, indicating tube end is deburred. Do not
cut too deep into wall of tube. Width of deburring
chamfer shall not exceed 1/2 wall thickness of
tube.
14.
Without depressing plunger, pull tool from tube
(3) until first bulge of plug (1) is exposed. Wipe
off tube and plug. Inspect tube end for proper
deburring. Repeat step 13, if needed.
15.
Remove deburring tool from tube (3). Clean all
chips from tube and tool.
7-33