C-4
the thickness of the set of compensation rings is deduced from
formula:
x=D-E-f
.
loosen the screw, unsolder the tube wires off the plate, and take
the tube holder out of the scope body. trim fit the set of compen-
sation rings for the needed thickness
x
.
b) assemble the scope with the set of compensation rings
2.5mm thick. the scope focus knob shall be adjusted
for “infinity” position. Mount the scope onto a collimating
bench. turn the focus knob until the image reaches its
optimal grain (sharpness). Use this position on the col-
limator scale as a reference point for further calculations.
Deduce the needed thickness
Δ
x
to trim the set of com-
pensation rings for from the formula below:
Δ
x = (f’
obj
)
2
x [(N
inf
– N
opt
)/600]
2
where:
f’
obj
– scope focal distance (108mm or 162mm),
N
inf
– collimator scale value for infinity position,
N
opt
– collimator scale value for optimal sharpness.
Unsolder the IIt Container wires off the plate. Draw the tube
holder assembly out of the body, trim fit the set of compensation
rings for the thickness of (2.5 –
Δ
X)mm.
2. Insert the Set of Compensation rings (2) inside the scope
body.
3. Follow up the drawing to install the tube holder assembly
and back its position up with thread ring (12) using Wrench
Ct.00.03.000.
4. Install the liner, the Spring and the Cap (5, 4 and 3). Use
Wrench St.t.00.001 to screw in the cap. lock the cap with
primer coat.
5. tighten up the thread ring (12) and lock it with primer coat.
6. Centerdrill a hole for Screw (17) in the tube holder (11) for
0.5mm deep and coat it with primer.
7. Solder tube wires to the plate.
8. Install reticle Screw assembly (5) into Item (10) of Subas-
sembly (11) (tube holder). Make sure the reticle crosshair is set
