Quantcast REMOVAL AND REPLACEMENT OF PARTS ON THUMBWHEEL SWITCH ASSEMBLIES.

 

Click here to make tpub.com your Home Page

Page Title: REMOVAL AND REPLACEMENT OF PARTS ON THUMBWHEEL SWITCH ASSEMBLIES.
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
REPLACEMENT OF ROTARY SWITCHES.
Up
TM-11-5841-268-25 Control Transponder Set C-6280(P)/APX C-6280A(P)/APX C-67171APX & C-7483/APX Manual
Next
REPLACEMENT OF INDICATOR LIGHTS.


T.O. 12P4-2APX-142
NAVAIR 16-35C6280-1
TM 11-5841-268-25
remove wafer from shaft. Check that flats on sides of shaft
that holds switch assembly to angle bracket (49, FO­3; p/o
are vertical, as shown in Figure 8­1, and reinstall shaft in
hole in chassis (15), making sure the gear teeth mesh with
Step 3. Remove two flat-head screws (58, FO­3; 61,
the teeth of the gear on the chassis assembly.
FO-4; 60, FO­5) that hold switch to subassembly mount-
Step 3. Apply a small amount of Lubricant 551D7-44 to
ing panel (59, FO­3; 65, FO-4; 61, FO­5).
gear teeth, as necessary. Remove any excess lubricant.
Step 4. Remove thumbwheel switch assembly.
Step 4. Position insert of switch wafer as shown in FO-1
Step 5. To install thumbwheel switch assembly, reverse
and Figure 8­1 (flat side vertical, notch toward front of
the procedures in Steps 2 and 3.
switch assembly), and install wafer on shaft of shaft and
gear assembly.
Step 6. See wiring diagram FO­2 and solder wires to
thumbwheel switch assembly.
Step 5. Replace washers (7), spring tension clip (6), and
screws (5).
Step 7. Replace the plastic light panel and rear panel as-
sembly (paragraphs 8­3 and 8­5).
8­22. REPLACEMENT OF INDICATION KNOB ASSEM-
BLY. Except for S212, to replace the indication knob as-
8-19. REMOVAL AND REPLACEMENT OF PARTS ON
sembly (9, Figure 8­1), check that the knob is set to "7,"
THUMBWHEEL SWITCH ASSEMBLIES.
as shown in Figure 8­1. For S212, set the knob to "3."
8­20. GENERAL. To remove and replace parts on the
Then, proceed as follows:
thumbwheel switch assemblies, remove switch assembly from
Step 1. Using C-ring expanding tool, carefully spread re-
transponder set control (paragraph 8­17). Refer to the ex-
taining ring (10, Figure 8­1). Remove ring, flat washer or
ploded view in Figure 8­1 and to the appropriate procedure
washers (11), and spring washer (12).
in paragraph 8--21 or 8--22 for parts replacement. When the
Step 2. Lift indication knob (9) and spur gear (13), which
repair is completed, reinstall the switch assembly.
is attached to knob, from shaft.
8­21. REPLACEMENT OF SWITCH WAFER. To replace
Step 3. Install spur gear on replacement indication knob.
the switch wafer of the rotary switch (4, Figure 8­1 ), check
Step 4. Apply a small amount of Lubricant 551D744 to
that indication knob assembly (9) of all switches, except
gear teeth, as necessary. Remove any excess lubricant.
S212, is set to "7." Set S212 to "3." Then, proceed as
follows:
Step 5. Orient spur gear and indication knob as shown in
Figure 8­1 (flat sides in gear vertical), and install knob and
Step 1. Remove two screws (5), spring tension clip (6),
gear on shaft.
and two washers (7) that fasten switch to chassis ( 15).
Step 6. Replace spring washer (12), flat washers (11) as
Step 2. Lift switch wafer from shaft of shaft and gear
required, and retaining ring (10).
assembly (8). If shaft and gear assembly lift up with wafer,
Figure 8­1. Thumbwheel Switch Assembly, Exploded View
8­3


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

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