Advertisement
—
being
(item 3)
—
and
remove,
1)
6),
shadow bar (item
(item
4),
the solar plate (item
The level
c.
screws (item
14)
into
level
the
assembly and
the
protractor
The
d.
bearing assembly (Item
protractor
however,
the
the instrument.
assemble
Unscrew
the
e.
which pivots and clamps the gimbal arm and bearing
(item
20)
assembly in the frame and
the bolt,
move
and slide the gimbal arm and bearing assembly
trunnion
frame and
is damaged,
16)
/. To
disassemble
wing nuts (item
pivot and clamp
port.
Remove the bolts,
and fibre washers, and
(item
21)
assembly off the support
screw locks (item
from
frame and
the
disassembly
of
INSPECTION.
2.
Make an inspection
REPAIR.
3.
Repair
of this instrument consists mainly of replacing any
a.
damaged or broken part.
If
the gnomon or sighting
6.
into
back
them
broken, replnce
unscrewing
the
holder and capsule.
MAINTENANCE MANUAL
careful
to lose the
not
successively, the pivot bolt, shadow bar washer
5),
7),
and the date bar (item
vial
(item
12)
inserting through the gimbal arm (item 10),
vinl
casing.
Remove the level
vial
casing washer (item 13).
level
is
plate
11) by
plate
wing
nut (item
trunnion
plain
washer (item 22), lock washer (item
assembly.
it
not
need
be
support
the
from
the
23)
frnme and
the
plain
(item 18).
are
damaged,
16)
trunnion
Sun Compass Assembly.
the
of
the parts as outlined in Section V.
straight
rod.
a
capsule and holder together
the
from
holder
star
and shadow bar bearing (item
is
removed by unscrewing
secured to the gimbal arm and
two flat-head screws (item 15),
not
need
be
from
23)
assembly (item 17).
Unless the cap screw lock (item
removed.
assembly, unscrew
hex-head bolts (item
trunnion
assembly
washers (item
lift
frame and
the
Again,
they
need
This
assembly.
rods are
bent,
If
luminous capsules are
the
installing
the rod and
22
nut spring (item
8).
two
vial
and casing
removed to dis
hex-head bolt
the
Re
21)
out of
the
the two
which
20)
the sup
to
lock washers
22)
trunnion
unless the cap
not
be removed
completes the
carefully
bend
unit,
as a
another
by
Advertisement
