Assemble Lens Tube (19°, 26°, 36°, And 50°) - ETC Source Four Assembly Manual

A s s e m b l e l e n s t u b e ( 1 9 ° , 2 6 ° , 3 6 ° , a n d 5 0 ° )
Tools Required:
•
Step 1:
Step 2:
Step 3:
Figure 15
Step 4:
Step 5:
Step 6:
N o t e :
Step 7:
Step 8:
Step 9:
19°, 26°, 36°, and 50° Lens Tubes
#2 Phillips head screwdriver
Place the left and right lens holder castings (1 & 2) face up on your work surface.
Align the castings so the colorframe grooves are to your left
Install lens support pads (4) as required inside both lens holder castings. Four
pads are required per lens. Insert pads short-side down, as shown.
Install the 1/4-20 hex nut (13) in the left lens holder casting as shown.
Lens
Lens support
pad
Lens holder
casting
Install the short end of the gel retainer clip (9) in the left lens holder casting (1).
Position the clip in the forward, locked position, then install the retainer spring
(10) on the clip.
Install the required lens (or lenses) (5, 6, 7, or 8 & 8A) as shown on
19°, 26° and 50° aspheric lenses have painted dots to orient the lens in the tube.
Install the lens with the painted dot facing the front of the tube. Seat the lens in the
support pads so the dot remains visible.
Invert the right lens casting (2) and hold it above the left lens casting (1).Fit the
clip (9) and spring (10) into the right lens casting. Gently place the right lens
casting onto the left lens casting, making sure that the 1/4-20 hex nut and
retaining clip assembly stay properly seated. Make sure the lens stays straight
by looking into the lens holder. The top edge of the lens should seat properly in
the support pads.
Install the PHMS screws (11) in four locations with Ny-lok nuts (12). The PHMS
screw location on the bottom of the colorframe holder is threaded and does not
require a Ny-lok nut. Hold the nuts tight against the casting and torque the screws
to 25 inch pounds.
Install the eight bushing guides (3). Point the narrow tab on the bottom toward
the back of the casting; point the square tab toward the front. Squeeze the guides
slightly so they bend in the middle then snap into place. Make sure the rounded
side of the guide faces outward from the tube.
Hex-nut
Lens holder casting
Figure 16
page 12.
13