Technical information

OM45P_Rev J Page 11 of 28
2.0 Mount & Antenna Assembly Procedures
These sections provide the basic sequence and tips for the assembly of various elements of the 4.5m ESA.
Appropriate drawings and schematics references for assembly of the antenna are also provided, when
applicable. Refer to the drawings, instructions, and schematics for the specific system being installed, per the
information provided in Table 1.2.
2.1 Assembly Sequence & Helpful Tips
ASC Signal recommends following these helpful tips regarding the sequence of assembly:
 Always use the correct provided hardware and use the appropriate sequence for tightening/torque, as per
the instructions provided with the part or kit being assembled and/or installed (as listed in Table 1.2).
 As a rule, never fully tighten A-325 type hardware (see Section 1.2) unless instructed to do so by
instructions. Once tightened, A-325 cannot be loosened. If loosened, it must be replaced with new A-325
hardware.
 Assemble the Mount per the instructions (see Table 1.2), then move on to reflector assembly before
continuing.
 The Mount should be assembled at ground level before beginning any hoisting with crane.
 The Reflector & Back Structure should be assembled at ground level before beginning any hoisting with
crane.
 Theodolite Alignment should be performed at ground level before beginning any hoisting with crane.
 During assembly of the Azimuth Jackscrew, ensure that the Azimuth Jackscrew assembly is in the fully
retracted position.
 During Panning Frame assembly, insert bolts from the inside of the Panning Frame.
 During hoisting (with crane) of the Motor/Jack Assembly, do NOT attach any ropes to the Small Motor.
 Always attach hoisting ropes in such a way that moving parts will not drop/rotate when lifted.
 Realignment of the Panning Frame/Pivot Assembly may be necessary to ensure proper alignment of the
Azimuth Jackscrew pin. Make snug the Panning Frame/Pivot Assembly hardware and fully extend the
Azimuth Jackscrew so that binding does not occur along the full range of the Azimuth Pivot.
The following steps represent the recommended (but not required) basic sequence of assembly for this
antenna:
NOTE: More steps may be required, in addition to those listed below, depending on the antenna type and/or the presence
of particular options. Refer to Table 1.2 to locate document numbers for the system being installed. Such documents will
be provided in the shipment of each part, kit, and/or option.
1. Mount Assembly: Refer to instructions per Table 1.2
2. Reflector & Back Structure Assembly: Refer to instructions per Table 1.2
3. Feed Support Installation: Refer to instructions per Table 1.2
4. Theodolite & Alignment: Refer to instructions per Table 1.2
5. Feed Interface Installation: Refer to instructions per Table 1.2
6. Subreflector Assembly & Installation: Refer to instructions per Table 1.2