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8" Pro APF IRGL optical assemblies are designed to withstand a maximum torque
WARNING
superior-grade 3/8" hardware, however other components within the light fixture
installation (i.e. base-can, extension rings, spacer rings, etc.) may not be capable of
supporting such a load. Eaton Crouse-Hinds recommends following the installation
9.2
Heico-lock Installation Guidelines (2014)
Step 1: Hand tighten to ensure that 2-3 threads extend beyond the nut on through-bolt applications.
Step 2: Tighten each bolt to one-third of the final required torque following the pattern as shown
below.
Step 3: Increase the torque to two-thirds following the pattern shown below.
Step 4: Increase the torque to full torque following the pattern shown below.
Step 5: Perform one final pass on each bolt working clockwise from bolt 1, at the full final torque.
10
Maintenance
The preferred method of maintaining these lights is to periodically and systematically replace the units
and return them to the maintenance shop for renovation. As an alternative, the units can be serviced in the
field. However, it is recommended that field servicing be limited to checking bolt torque per section 9.1
and cleaning the lens only as described in Section 10.3.
Instruction Manual
PRO APF Series LED
Inset Runway Guard Light L-852G
of 28 ft-lb (336 in-lb) per bolt, assuming K=.18 lubricant and appropriate
bolt torque values and methodology outlined in Section 9.1.
11
DOCUMENT 1331
REV. C
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