8
tighten the truss knobs after all three trusses are
in place.
Note: Do not fully tighten the truss-tube lock knobs
(8) until the upper cage (5) is assembled to ensure
all components fit together correctly.
Step 3:
After all 3 trusses are in place, loosen the upper
truss-tube lock knobs (6) on top of each truss.
Place the upper cage (5) into the slots at the top of
each truss and lightly tighten the truss knobs (6).
Note: Make sure that the seam on the tube is
also pointing towards the front panel (see step 1)
otherwise the placement of the eyepiece will be in
an unacceptable location.
Step 4:
With the upper and lower cages assembled,
tighten all six truss-tube lock knobs (8) until firm.
Step 5:
Attach the altitude brake (19) to the left base side
panel (12) using the thumbscrew and brake parts
provided. The altitude brake can be adjusted as
needed to induce additional friction on the altitude
motion.
Note: When using heavy eyepieces or accessories,
the optical tube balance point changes and may
cause the optical tube to drift downward. Tighten
the altitude brake (19) to prevent the optical tube
from drifting as needed. Do not fully lock the brake
where the optical tube can not be easily moved or
following stars in the night sky will be difficult.
Before removing or assembling the optical tube,
always loosen the altitude brake fully to prevent
damage by the altitude bearing (10).
The entire assembly should move easily up and
down and from side to side.
Step 6:
Insert the two inch eyepiece (1) into the focuser
assembly and tighten the 2” eyepiece lock
thumbscrew (28).
If the 2” to 1.25” eyepiece adapter (27) is
Figure 13
Figure 14
Figure 16
Figure 15
Install
truss tubes
Truss tubes
installed
Optical tube
fully assembled
Install
altitude brake
