25
95-8714
6.3
ALIGNMENT PROCEDURE
1. Ensure that the system modules are located
within the specified separation range and
securely fixed to the support structures.
Bypass all external gas alarm devices that are
connected to the receiver outputs.
2. Ensure that the system modules are installed
with their windows at approximately the same
height above grade. Each module should be
roughly aligned to face in the direction of the
other module.
3. Loosen the Horizontal and Vertical Adjustment
Bolts on the mounting and alignment bracket
using the 9/16” wrench for the Horizontal
Adjustment Bolts and the 15/16” wrench for the
Vertical Adjustment Bolts. See Figure 25.
4. Loosen the four Horizontal Locking Bolts on top
of the mounting and alignment bracket using
a 9/16” wrench, then re-tighten until just snug
against the top plate of the Detector Mounting
Assembly. The Detector Mounting Assembly
should still be able to rotate on its axis when
adjusting the Horizontal Adjustment Bolts. If not,
slightly loosen the four Horizontal Locking Bolts.
5. Remove the brow by gently working side to
side while pulling forward.
6. Install the Alignment Tool onto the receiver
module by inserting the captive thumbscrews
into the threaded holes on the faceplate. See
Figure 26. Ensure that the alignment tool
is properly attached, that the eyepiece is
accessible, and that the thumbscrews are
completely tightened.
7. Using the Horizontal and Vertical Adjustment
Bolts, adjust the receiver module as required
until the cross hairs are centered as close
as possible to dead center on the window
of the transmitter module. Do not tighten the
adjustment bolts at this time, just snug down
all adjustment bolts finger tight.
8. Slightly loosen the Vertical Adjustment Bolts
so that tightening the four Horizontal Locking
Bolts does not cause the Detector Mounting
Assembly to bind as it is being pulled up.
9. Tighten the four Horizontal Locking Bolts in
an opposing-alternating pattern. Torque each
bolt to 200
in-lbs (22.6 N•m) maximum.
10.Tighten the Horizontal Adjustment Bolts to 200
in-lbs (22.6 N•m) maximum,
being careful to
tighten each bolt evenly against each other
to prevent torquing of the Detector Mounting
Assembly. Tighten the Locking nuts to 200
in-lbs (22.6 N•m) maximum
. The mounting and
alignment bracket is now secured horizontally.
11. Verify alignment using the Alignment Tool.
The Vertical alignment may have shifted
slightly due to tightening of the four Horizontal
locking bolts pulling the Detector Mounting
Assembly up. Adjust the vertical alignment if
needed using the Vertical Adjustment Bolts.
12. When proper alignment has been achieved,
tighten the Vertical Adjustment Bolts
and Locking Nuts to 90
ft-lbs (122 N•m)
maximum, being careful to tighten each
bolt evenly against each other to prevent
torquing of the Detector Mounting Assembly.
The Receiver is now secured vertically and
aligned with the Transmitter.
13. Rotate the telescope alignment tool by 180°
and verify that the cross hairs are in the
same position. If the cross hairs are not in
the same position, the telescope alignment
screws must be adjusted as follows:
A. Adjust the telescope alignment screws
until the cross hairs are midway between
the original position (center of transmitter
window) and the current position (after the
scope was rotated 180°). See Figure 27.
B. Return the scope to its original position
(rotate 180°) and repeat steps 7 through
13 until correct alignment is achieved.
NOTE
No further adjustments are required when
the cross hairs are centered on the window
with the scope in both 180° positions.
14. Repeat the alignment procedure for the
transmitter module (steps 3 to 13).
Figure 26— LS2000 with Alignment Tool Installed