Nautel NX3, Installation Manual

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NX5/NX3 INSTALLATION MANUAL UNPACKING AND POSITIONING
VERSION 3.1 2021-04-22 PAGE 2.2.3
4. Nautel can provide an optional NX-LP Caster Kit (Nautel part # 212-8055) to aid in moving the
transmitter into position. If you are using the casters to roll the NX5/NX3 into position, perform the
following (see
Figure 2.2.2 on page 2.2.4 ):
 Open the front and rear doors of the NX5/NX3. Remove the four hole plugs from each bottom
corner to expose the top of the threaded leveling feet.
 Use the 3/16-inch hex bit socket (Nautel Part # HY120, provided in the ancillary kit) and a 3/8-
inch drive ratchet (user provided) to extend each leveling foot to the transmitter room floor.
Continue to extend the levelers so that the NX5/NX3 is approximately 1” (25 mm) above the
floor.
 Obtain the four casters (Nautel Part # HAW73), eight spacers (Nautel Part # 212-8166),
sixteen (16) M8 x 30-mm hex bolts, and M8 nuts and washers from the Caster kit (Nautel part
# 212-8055).
 Use two spacers, four M8 bolts, nuts and washers to secure each caster to the bottom of the
NX5/NX3 (see
Figure 2.2.2 on page 2.2.4 ).
NOTE:
It may not be possible to install all four (4) bolts in the front casters. Install at least two
(2) bolts, in opposite corners, taking care not to damage the power transformer.
 Use the 3/16-inch hex bit socket to retract the levelers until the casters rest on the floor.
Continue to retract the levelers a further 1” (25 mm).
 Roll the NX5/NX3 into its final position. Extend the levelers to elevate the casters off the floor.
Remove the casters and associated hardware. Store them for future use.
 Adjust the levelers until the NX5/NX3 rests on the floor.
5. If you are not anchoring your transmitter, adjust the levelers until the NX5/NX3 is level. If you are
anchoring your transmitter against seismic activity, obtain four 2-1/4 inch square washers (Nautel
Part # HPS30) from the ancillary kit. Position the transmitter over the four pre-drilled mounting
holes in the floor (see Figure 1.2.1 of the NX5/NX3 Pre-Installation Manual for pre-drilled hole
locations) and install four anchoring bolts (user-provided), with square washers, in the holes
provided in the bottom of the transmitter cabinet (see
Figure 2.2.3 on page 2.2.5 ).
NOTE:
The maximum bolt length that can be used for seismic anchoring is dependent on the height
of the cabinet opening above the anchor holes [3.5 inches (9 cm)] and the tool you are using to
anchor the bolts. If the bolts are too long, try jacking up the transmitter cabinet (by adjusting the
levelers), then installing the bolts while slowly dropping the height of the transmitter until it rests
on the floor.
6. Obtain the front dress panel (Nautel Part # 212-8122-01) and rear dress panel (Nautel Part #
212-8122-02) from the ancillary kit. Install the panels as shown in
Figure 2.2.4 on page 2.2.5 .