Preparation, Installation – CHIEF RPA Series User Manual
Page 4
RPA Series
Installation Instructions
4
PREPARATION
Locate Mounting Site
WARNING:
IMPROPER INSTALLATION MAY LEAD TO
PROJECTOR MOUNT FALLING CAUSING SEVERE
PERSONAL INJURY OR DAMAGE TO EQUIPMENT! It is
the installers responsibility to make certain the structure to
which the projector mount is being mounted is capable of
supporting five times the weight of the projector mount and all
attached equipment. Reinforce the structure as required
before installing the projector mount.
1.
Determine required position of the RPA projector mount.
2.
Determine required distance of the projector mount from the
screen using the lens-to-screen distance information.
NOTE:
Proceed to Installing to 1-1/2" Threaded Extension
Column, Installing to Wood Framework (Joists), or
Installing to Threaded Rod section, as appropriate.
INSTALLATION
Installing to 1-1/2" Threaded Extension Column
1.
Install 1-1/2" NPT or NPSM following ANSI/ASME B1.20.1
(Schedule 40, 0.154" minimum thickness steel or aluminum
- ASTM B221) threaded extension column (not included)
into threaded collar until tight, with a minimum of four
threads engaged.
2.
Thread RPA projector mount (A) onto the threaded
extension column (not included) until hand tight, with a
minimum of four threads engaged.
3.
Turn RPA clockwise or counter-clockwise until front of
mount is facing target.
IMPORTANT ! : When RPA is properly positioned, the
set screw access hole should be pointing directly at
target, or 180° AWAY from target.
4.
Secure RPA to pipe by turning set screw until tight. (See
Figure 1)
CAUTION:
DO NOT OVERTIGHTEN! Over tightening of
set screw can damage threads on pipe.
Figure 1
5.
Proceed to Installing Projector with Interface Bracket
section.
Installing to Wood Framework (Joists)
1.
Using the RPA as a guide, mark four mounting hole
locations. (See Figure 2)
2.
Drill four 1/8" x 1-1/2" deep (minimum depth) pilot holes.
(See Figure 2)
Figure 2
3.
Align four mounting holes in RPA with four pilot holes.
4
(A)
Threaded extension
column (not included)
x 1
1
2
x 4
1
2
(example only)