penetrate. If the solvent is taken in-
ternally, consult a physician im-
natural oils, prolonged contact with the
skin should be avoided. When necessary
use gloves that the solvent cannot
Figure 2-12. Upper guy ring assembly, exploded view, AB-621A/G.
2-19. Replacement of Peepsight
d. Separate and clean the guy ring race (5),
bearings (6), and casing (7) with trichlorotrifluoro
a. Replace the peepsight mount (1) on the
e. To reassemble the parts, pack the outer wall
peepsight (3) by removing the groove pin (2) from
and flange of the guy ring race with Grade 2
the threaded section of the peepsight mount and
graphite grease per Federal Specification
remove the knurled nut (4).
b. Secure the peepsight mount in a vise to drive
f. Stick 26 bearings (6) against the greased outer
the groove pin out of the hole in the threaded sec-
surface and flange of the guy ring race.
g. Replace the casing (7) over the bearings
c. Start the pin movement with a 1/4-inch (0.250)
h. Scrape off the excess grease extruded by
pin punch to break the groove grip.
placement of the casing and replace the guy ring
d. Continue driving the pin out using a 1/16-inch
(0.063) pin punch.
i. Turn the assembly over and replace the cover
e. After reassembly of the peepsight, mount, and
(4) lockwasher (2), flat washer (3), and screws (1).
nut, drive the groove pin into the hole until it
j. After tightening the screws, wipe the assembly
projects equally on both sides of the threaded
clean with a cloth.