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TM 11-5820-890-30-5
3-37. REPLACEMENT OF DUMMY LOAD AND ATTENUATORS.
Tools:
Adjustable wrench
3/16-inch nutdriver
References:
Paragraph 3-25 for removal and installation of test adapter from maintenance group lid.
Figure 3-12 for illustration of dummy load and attenuators.
ITEM
ACTION
REMARKS
REMOVAL
a. Hex nut (28), flat washer
(29), and spacer (35)
b. Plastic clamps (34)
c. RF cables (30, 31, 36, 50,
and 51)
d. Attenuator (32) or
dummy load (33)
INSTALLATION
e. Attenuator (32) or
dummy load (33)
f. RF cables (30, 31, 36, 50,
and 51)
g. Plastic clamps (34)
h. Hex nut (28), flat washer
(29), and spacer (35)
Using 3/16-inch nutdriver, remove and
See figure 3-12 (sheet 2).
retain hex nut, flat washer, and spacer
securing each plastic clamp (34) to
chassis (67).
Remove and retain plastic clamps from
ends of attenuator (32) (two each) or
ends of T-connector (53) and dummy
load (33) (three each).
Using adjustable wrench, unscrew SMA
connectors and disconnect RF cables
from attenuator (32) or T-connector (53)
taking care to note the position of the RF
cables.
Remove and discard.
Place replacement attenuator or dummy
load in proper position on chassis (67).
Using adjustable wrench, connect RF
cables to correct positions on attenuator
(32) or T-connector (53).
Install retained plastic clamps to ends of
These were removed in
attenuator (32) (two each) or ends of
step b.
T-connector (53) and dummy load (33)
(three each).
Using 3/16-inch nutdriver, install and
These were removed in
tighten retained hex nut, flat washer,
step a.
and spacer securing each plastic
clamp (34) to chassis (67).
3-107
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