Section I1
Model 297A
Paragraphs 2-1 to 2-9
SECTION II
INSTALLATION
rotates freely when coupled to the instrument to be
2-1. GENERAL INFORMATION.
driven), then tighten the screws on the mounting bars
2-2. The Model297Ais shipped from the factory with to hold the Model 297A in place.
two flexible couplers. One is suitable for connecting
Note
the 297A to the 302A; it has a 1/4-inch adapter on one
end anda7/16-inch adapter on the other end. The The 297A drive shaft has a bushing -band
other is suitable for connecting the 297A to the 310A; friction clutch: care is required in mounting
it has a 1/4-inch adapter on both ends. the flexible coupler on the 297A drive shaft to
ensure that the friction clutchperformsprop-
2-3. MECHANICAL INSPECTION. erly. The appropriate coupler should be
mounted as follows:
2-4. Unpack the instrument upon receipt and inspect
it for signs of physical damage such as scratched a. Place coupler on shaft and align one of
panel surfaces, broken knobs, etc. If there is any
setscrews with openingin steel band on shaft
apparent damage, file a claim with the carrier and
and tighten aligned setscrew moderately.
refer to the warranty page in this manual.
b. Tighten other setscrews.
2-5. MOUNTING. CAUTION: When mounting flexible clutch on
2-6. MOUNTING ON THE 302A WAVE ANALYZER. @ Model 310A shaft, setscrews must be flat-
rather than cup-ended.
. 2-7. To mount the Model 297A on the Model 302A,
c. Torque required for slippage in friction
proceed as follows:
clutch should be approximately 20 inch-
a. Remove the fine vernier knob on theModel302A. ounces. Readjustment of aligned setscrew
may be necessary
b. Set the Model 302A on its back so controls are
, facing upwards.
c. Counting from right to left on the 302A, remove
second and third screws nearest the top of the 302A.
These screws will be the twonearest the FREQUENCY
dial (see figure 2-1).
d. Carefully slide the 297A output shaft coupler over
the 302A vernier drive shaft. Tighten the output shaft
coupler screws.
e. Align holes in the two mounting lugs with holes
made by removal of two screws on the Model 302A.
f. Carefully insert screws in holes of mounting lugs
and finger tighten. Be careful. There may be three
shims under each screw-hole of the Model 302A. If
jarred, they may fall into themechanism. Be sure the
f,
output shaft rotates freely before tightening the screws.
1;
i
I'
2-8. MOUNTING ON THE BENCH STAND.
'I
2-9. To mount the Model 297A on the 11505A bench
i
stand, proceed as follows:
a. Remove the four screws at the rear that secure !
- the mounting bars to the back of the Model 297A.
b. Attach the two bench stand brackets to the back
of the Model 297A, using the four extra screws sup-
plied with the bench stand.
c. Insert the two rods supplied with the benchstand
into the holes in the stand. Tighten the screws at the
rear of the stand to secure the rods (see figure 2-2).
d. Slide the Model 297A mounting brackets over and
down on the rods (see figure 2-3). Adjust the Model
Figure 2-2. Assembled 11505A Bench Stand
297A to the proper height (make sure the output shaft
2-1
01163-2 |
ACEC
