Quantcast REPLACEMENT OF ROTARY SWITCHES.

 

Click here to make tpub.com your Home Page

Page Title: REPLACEMENT OF ROTARY SWITCHES.
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Back
SECTION VIII. REPAIR AND OVERHAUL INSTRUCTIONS
Up
TM-11-5841-268-25 Control Transponder Set C-6280(P)/APX C-6280A(P)/APX C-67171APX & C-7483/APX Manual
Next
REMOVAL AND REPLACEMENT OF PARTS ON THUMBWHEEL SWITCH ASSEMBLIES.


T.O. 12P4-2APX-142
NAVAIR 16-35C6280-1
TM 11-5841-268-25
Step 1. Make sure wire is securely connected to contact
815. REPLACEMENT OF ROTARY SWITCHES.
pin.
NOTE
Step 2. Lubricate wire cavities in back face of connector
In Control, Transponder Set C-6280(P)/APX,
insert with a thin film of DC-200 Silicone Oil, or equivalent.
Serial No. 1 through 130, manufactured under
Contract AF33(657)- 14550, rotary switches
Step 3. Locate pin in insertion tool coaxially with tool.
S201 and S202 were installed with the index
Step 4. Align contact pin with appropriate hole in rear
key rotated approximately 45 from the hori-
face of insert, taking care to avoid damaging the insert.
zontal and were marked with a yellow dot on
Step 5. When pin has entered rear seal portion of insert,
the rear wafer. When one of these switches is
maintain alignment of pin and tool parallel to and coaxially
to be replaced, the new switch should be in-
stalled with the index key in the horizontal po-
with the contact pin hole in the insert.
sition and the 45 offset hole should be plugged.
Step 6. Insert contact pin to full depth. (Insertion force
is less than 5 pounds.) The seating of the contact pin in the
816. To remove and replace either one of the two rotary
retention collet should produce an audible sound.
switches (29 and 32, FO3; 30 and 37, FO-4; 28 and 31,
FO5), remove the plastic light panel (paragraph 83) and
Step 7. Keep insertion tool aligned with insert hole, and
the rear panel assembly (paragraph 85). Then, proceed
remove tool from connector.
as follows:
812. REPLACEMENT OF CONNECTOR J201. When the
Step 1. Remove mounting nut and lockwasher (30, 31, or
connector mounting flange or the silicone-rubber insert of
33, 34, FO3; 31, 32, or 38, 39, FO4; 29,30, or 32,33,
the connector is damaged, the connector must be replaced.
Either the original contact pins may be reused or new pins
Step 2. On C-6280A(P)/APX, remove two screws (33 and
may be installed. Replace the connector as follows:
40, FO4) and remove nut plate assembly (34 or 41). Re-
Step 1. Remove all contact pins from connector (para-
move two nuts (36 or 43) and lift off switch bracket (35 or
graph 89).
42); then, replace nuts (36 or 43) to hold switch together.
Step 2. If new contact pins are to be installed, disconnect
Step 3. Gently move switch so terminals are accessible.
wires from old pins and attach them to the new pins (para-
Step 4. See wiring diagram FO2 and solder wires to ap-
graph 810).
propriate terminals of replacement switch.
Step 3. See wiring diagram FO2 for wire colors and in-
Step 5. On C-6280A(P)/APX, install switch bracket (35
sert pins in the new connector insert (paragraph 8-11 ) ac-
or 42, FO-4) on switch with nuts (36 or 43).
cording to wire color.
Step 6. Install replacement rotary switch on subassembly
mounting panel with mounting nut and lockwasher.
813. REPLACEMENT OF TOGGLE SWITCHES.
Step 7. On C-6280A(P)/APX, replace nut plate assembly
814. To remove and replace any of the eight toggle
(34 or 41, FO-4) and screws (33 or 40).
switches (41, 42, 43, 44, 45, FO3; 51, 52, 53, 54, 55,
FO4; 40, 41, 42, 43, 44, FO5), remove the plastic light
Step 8. Apply a small amount of Lubricant 551D7-44 to
switch actuating mechanism, and turn switch several times
panel (paragraph 83) and the rear panel assembly (para-
to distribute lubricant. Remove any excess lubricant.
graph 85). Then, proceed as follows:
Step 1. Unsolder wires from switch to be replaced.
Step 9. Replace the plastic light panel and rear panel as-
sembly (paragraphs 83 and 85).
Step 2. On subassembly mounting panel (59, FO3; 65,
FO-4; 61, FO5), remove mounting nut and washer from
8-17. REPLACEMENT OF THUMBWHEEL SWITCHES.
toggle switch and remove switch.
8 18. To replace any of the six thumbwheel switch assem-
Step 3. Install replacement switch on subassembly mount-
blies (56 or 57, FO3; 59 or 60, FO-4; 58 or 59, FO5),
ing panel with nut and washer.
remove plastic light panel (paragraph 83) and rear panel
Step 4. See wiring diagram FO2, and solder appropriate
assembly (paragraph 85), and proceed as follows:
wires to switch terminals.
Step 1. Unsolder wires from thumbwheel switch assembly
to be removed.
Step 5. Replace the plastic light panel and rear panel as-
Step 2. Remove screw (53, FO3: 62, FO4: 55, FO5)
sembly (paragraphs 83 and 85).
Change 1
8-2


Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business