UPPER MOUNT INSTALLATION PROCEDURES
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42S183D
SERIES 8116/8118 16-/18-METER EARTH STATION ANTENNA
3-29
This procedure includes mounting the ladders from the mount
mezzanine to the rotating frame and from the rotating frame to the
hub. The procedures also include the jib installation. The ladders
will be installed first, followed by the guardrails for the rotating
frame, and then the jib installation. The optional equipment
installation is illustrated in Figure 3-7 and described in the
following procedures.
INSTALLING
GUARDRAILS AND
LADDERS
Perform the following procedure to install the ladders for access to
the rotating frame and hub.
Ladders Installation
1. Attach two ladder hanger brackets (item 14 in Figure 3-7) to bearing
assembly using two bolts (item 106), four flat washers (item 107),
and two nuts (item 108) on each bracket.
2. Install ladder (item 12 or 13) to brackets.
3. Attach hub access tread plate using four bolts (item 100), four
washers (item 101), and two nuts (item 102).
4. Install hub access ladder (item 11) using two bolts (item 109), four
washers (item 110), and two nuts (item 111).
5. Torque all ladder fasteners to values listed below:
3/4-inch Fasteners
260 ft-lbs (353 Nm)
5/8-inch Fasteners
150 ft-lbs (203 Nm)
3/8-inch Fasteners
31 ft-lbs (42 Nm)
Perform the following procedure to install the guardrails on the
work platform.
Guardrails
Installation
1. Install left side guardrail (item 1 in Figure 3-7) to rotating frame
using 22 bolts (item 100), 44 washers (item 101), and 22 nuts (item
102).
2. Install right side guardrail (item 2) to rotating frame using 22 bolts
(item 100), 44 washers (item 101), and 22 nuts (item 102).
3. Install rear guardrail (item 3) to rotating frame using 6 bolts (item
100), 12 washers (item 101), and 6 nuts (item 102).
4. Install rear guardrail (item 4) to rotating frame using 11 bolts (item
100), 22 washers (item 101), and 11 nuts (item 102).
5. Attach azimuth drive platform (item 5) and platform plate (item 18)
using 5 bolts (item 103), 10 washers (item 104), and 5 nuts (item
105).
Содержание 8116 Series
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