TM 11-5826-225-35
cedures. After lubricating a lubricating a component, wipe
(10) Insert the shaft of stop hub assembly
off any excess lubricant with a clean, lint-free
( 57) approximately inch through.
cloth. Refer to figure 517 throughout the re-
the bearing located in the lower left
assembly of the control unit.
corner of frame (136) as viewed from
the rear.
b. Replacement of Range Switch (S304).
Note. If the switch detent (82) and detent follower
(11) Place flat washer (70), collar (72),
(56) are to be replaced along with switch section (84),
worm gear (73) with shank toward
start this procedure with (1) below. But if just switch
the rear of frame (136), bearing
section (84 ) is to be replaced start this procedure with
sleeve (74), and collar (76) on the
(14 ) below.
shaft of stop hub assembly (57) that
(1) Apply a small quantity of N H L- L -
is protruding through the bearing on
7870 oil to the inner surface of the
frame (136).
bearing located in the lower right-
(12) Continue to insert the shaft of stop
h a n d corner of frame (136), as
hub assembly (57) through the bear-
viewed from the front.
ing on frame (136) and through the
(2) Insert switch detent (82) through its
shaft of switch detent (82) until stop
bearing from the rear of frame (136).
h hub assembly is fully seated against
the bearing on frame (136).
(3) Place notched end of detent follower
(56) on the grooved pin on frame
(13) Hold collar (72) and worm gear (73)
(136) with notch opening toward the
against the bearing through which the
edge of frame (136).
shaft of stop hub assembly (57) is
inserted and, with stop hub assembly
(4) With the wheel of detent follower
(57) seated against the bearing,
(56) in a detent of switch detent (82),
tighten setscrews (71).
connect spring (55) between riveted
(14) Slide collar (76) and bearing sleeve
end of detent follower (56) and a
grooved pin on frame (136).
( (74) toward the front of frame (136)
until they are against the shaft of
(5) Mount dial drum level (81) on a pin
switch detent (82). Tighten two set-
on the rear of frame (136), oriented
screws (75).
s o pin (80) protrudes toward the
(15) Orient switch section (81) so the x
rear of frame (136). The shaft on
mark near one of the securing holes
switch detent (82) should protrude
is facing toward the front of frame
through the closed slot on dial drum
(136), and is to the right as seen from
lever (81).
the front.
(6) Insert split sleeve bearing (79) into
(16) Slide switch section (84) onto the
collar (77), and place them on the
shaft of switch detent (82). The notch
shaft of switch detent (82). Do not
in the shaft slot of switch section (84)
tighten setscrews (78) on collar (77).
should be to the left as viewed from
(7) Starting with flat washer (58), alter-
the front.
nately place five flat washers (58, 60,
(17) Mount switch section (84) to the front
62, 64, and 66) with five stop washers
of frame (126) with two spacers (83),
(59, 61, 63, 65, and 67) on the shaft
t w o screws (87), two nonmetallic
of stop hub assembly (57).
washers (86), and two lockwashers
(8) Place spring tension washer (68) and
(85).
flat washer ( (69) on the shaft of stop
huh assembly (37).
(9) Apply a small quantity of MIL-L-
7870 lubricant to each of the five flat
washers (58, 60, 62, 64, and 66).
3-14
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