User Manual

FlexWave microBTS Installation and Commissioning Guide Page 17
© 2009, ADC Telecommunications, Inc.
ADCP-77-086 • Issue 2 • 04/2009 • Chapter 3 - Mounting Procedures
• Torque wrench with 3/16 inch hex key socket
3.1.6 Lift Ring Installation
A lift ring is provided with the microBTS. Secure the lift ring to the side of the enclosure as
shown in Figure 3-2 using the two 5/8 inch long 1/4-20 socket head screws and two 1/4 inch
split washers provided. Use a torque wrench with a 3/16-inch hex key socket to tighten the cap
screws to 40 – 45 lbs/force-inches (4.5 to 5.1 Nm) of torque. Do not overtighten. If the threads
show signs of damage, yielding, or stripping when tightening the cap screws, discontinue lift
ring installation and remove the lift ring. Always use appropriate lifting equipment when
hoisting the enclosure into position for mounting. Remove the lift ring after the enclosure has
been mounted.
3.1.7 Standard Mounting Bracket Installation
A standard mounting bracket is provided with each enclosure. The standard mounting bracket
may be mounted vertically or horizontally. If mounted horizontally, it is recommended that the
bracket be oriented so the enclosure cooling fins will face upward or to the side with respect to
the ground. The following sections provide instructions for installing the standard mounting
bracket on a wood-framed wall, masonry wall, wooden utility pole, or metal pole. Refer to the
procedure that applies to the installation.
Figure 3-2: Hoist Ring Installation
22144-B
5/8-INCH LONG
1/4-20 CAP SCREWS
USE A TORQUE WRENCH
WITH A 3/16-INCH HEX KEY TO
TIGHTEN THE CAP SCREWS TO
40 TO 45 LBS/FORCE-INCHES
(4.5 TO 5.1 Nm) OF TORQUE
NOTE: IF THE THREADS SHOW SIGNS OF DAMAGE, YIELDING, OR STRIPPING
WHEN THE CAP SCREWS ARE TIGHTENED, DISCONTINUE INSTALLATION OF
THE LIFT RING. REMOVE LIFT RING AND DO NOT USE TO LIFT microBTS.
LIFT
RING
SPLIT
WASHERS