Vari Lite VL6000 Beam Luminaire, User Manual

Page: 42 / 103

VARI
❋
LITE - VL6000 B
EAM
L
UMINAIRE
U
SER
’
S
M
ANUAL
24 27 April 2017 02.9708.0002
diameter). Belleville washers are available in various thicknesses and any of the following thicknesses
(0.035-inch, 0.043-inch, 0.050-inch, 0.073-inch) are acceptable for the application described herein.
The washer serves two purposes:
• To spread out the load. When a washer IS NOT used, the bolt head (without a washer)
concentrates the load in a smaller area, creating focused stress on the steel bracket, making
premature failure possible. A steel washer is recommended to spread this load over a larger surface
area.
• To keep the bolt in place. The recommended Belleville washer maintains tension in the bolted
assembly and prevents it from vibrating loose.
If a Belleville washer is not available, a regular flat washer measuring in diameter of 1inch (minimum)
can be used in conjunction with a suitable split lock washer situated between the bolt head and flat
washer.
Step 2. Determine required configuration of bracket installation. Brackets may be installed in many
different orientations as shown in Figure 2-9 on page 25 .
Step 3. While pulling up on locking mechanism release, fit keyed holes onto raised mounting
buttons at bottom of enclosure. Slide forward and release locking mechanism to lock in
place. Ensure brackets are locked securely.