every bar; otherwise an open bar is indicated. Replace defective
(3) Place rotor in stator assembly (6) and position
stator assembly or rotor.
end frame (3) and end frame (101. Secure to stator assembly
with four bolts (11) and nuts (2-.
6-12. Drive Motor Reassembly
(4) Connect motor leads and motor cable (15, fig.
a. Reassembly.
(1) Carefully press new fan (8, fig. 6-4) on shaft of
(5) Position wire cover plate (18) and secure to end
rotor (7) if previously removed. Press Bear. end bearing (9)
frame (3) with two screws (1).
and bearing (5) on rotor shaft.
(6) Tap motor shaft gear (13) on shaft and lock in
(2) Position wire support bracket (4) and secure to
position by driving in tapered pin (12).
end frame (3) with two screws (16) and lockwashers (17).
b. Installation. Refer to paragraph 4-44. d.
Section IV. COPYBOARD ASSEMBLY
6-13. Description
(4) Remove setscrew (8, fig. 6-6), securing
The camera copyboard assembly (2, fig. 1-2) is made of a
operating knob (17) to operating gear and shaft (19). Slide off
magnesium aluminum alloy to minimize warping and to
knob. Remove four screws (7), securing operating dial plate
facilitate its movability. The area of suction on the copyboard is
(18) to cover plate (5) and remove dial plate. Remove eight
controlled by a single operating knob (7, fig. 1-6) on the back of
screws (6) securing cover plate (5) to copyboard back plate
the copyboard. The knob operates an internal rack and pinion
assembly (11. Lift off cover plate and pull out operating gear
arrangement which opens or closes operating gates. These
and shaft (19) and operating rod assembly (31. Remove
gates, when closed, divide the back of the copyboard into four
operating rod assembly stop screw (2).
sealed compartments. The inner compartment receives suction
(5) Remove setscrew (8,fig. 6-6) from each of three
at all times. As the gate between the inner compartment and
operating gears (41. Slide three operating gears off gate
the next compartment is opened, the sue lion area is increased
operating shafts. Remove operating gate (3, fig. 6-5). Remove
to include this compartment. The suction pressure from the
pivot screw (4). In a similar manner, remove remaining
vacuum turbo-compressor is constant so that as the suction
operating gates.
area is increased, the suction pressure per square inch on the
copyboard is decreased. As each successive gate is opened,
(6) Remove seven screws (7, fig. 6-5) and two
the previously opened gate is held in an open position. There
screws (9), securing copyboard form rib (8) to copyboard back
are three operating gates.
plate (1) and remove form rib. In similar manner, remove 18
remaining ribs.
6-14. Copyboard Disassembly
(7) Disassemble the operating rod assembly in the
following manner:
a. Removal. Refer to paragraph 4-52. b.
b. Disassembly.
(a) Remove three hex socket head
(1) Remove 88 screws (7, fig. 6-51, securing
screws (10, fig. 6-71, securing operating rod rack (1) to
copyboard front plate (6) to copyboard back plate assembly (1).
operating rod all. Lift off rack.
Lift off front plate.
(b) Remove hex socket head screw (9),
(2) Remove six screws (13, fig. 6-6), securing
securing operating rod tooth (2) to operating rod all. Lift out
copyboard cross brace (16). Remove other cross brace.
tooth and repeat this operation on the remaining two teeth.
Remove twelve nuts (14), six studs (12) and six jam mute (11)
(c) Remove two screws (3l, securing
from each cross brace.
block (4) to operating rod. Lift off block.
(3) Remove eight screws (2, fig. 6-5), lock-washers
(d) Turn rod over and remove screws (8),
(10, fig. 6-6) and nuts (15), securing copyboard flange (9) to
securing block (5 (to rod. Pry block (5) from operating rod and
copyboard back plate assembly (1). Lift off flange (9) and
remove dowel (6)
spacer (20).
6-6
