Timex 81 User manual

TIMEX
mode I
watch
9
3/41ig.
22.00
mm.
.
8660
in
.
81
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the TIMEX Model 81 Movement
The TIMEX Model 81 is a 9% Ligne calendar movement which utilizes the
basic
Model 80 movement with "V-conic" bearing system and rugged two
plate design.
The entire
calendar mechanism is housed between the Date Frame
Assembly
and the Dial.
To clean the TIMEX Model 81, follow instructions on Page 81.3.
An
exploded view of the Model 81 is shown on Page 81 . 2.
Instructions for disassembly and reassembly of the Model 81 movement
start
on Page 81.3.
81.1

the TIMEX Model 81 Movement (exploded view)
5118
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118
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DIAL PLATE
ASS'Y.
118
MOVEMENT PLATE AS!fv.
1 45/2 DATE FRAME ASS'Y.
255711 DATE RING
180/1 BARREL ASS'y.
20111 2ND.
WHEEL ASS'y.
210 3RD. WHEEL ASS'Y.
227
4TH. WHEEL ASS'Y.
242
CANNON PINION ASS'Y.
255 HOUR WHEEL ASS'y.
260 MINUTE WHEEL ASS'y.
40111
CROWN a STEM ASS'Y.
416
RATCHET WHEEL
42311
ROCKING BAR BUSHING
437
ROCKING BAR ASS'y.
439
ROCKING BAR SPRING
443
SET LEVER
450
INTERMEDIATE WIND
PINION
45011 WINDING STEM PINION
452 WIND a SET PINION
495
RATCHET WHEEL WASI£R
49512 WINDING BRIDGE
49811
HOUR WHEEL WASHER
705
ESCAPE WHEEL Ass'y.
710 PALLET
LEVER ASS'y.
72 1 BALANCE
WHEEL ASS'Y.
740
HAIRSPRING WEDGE PIN
-751
DIAL
850
HOUR HAND
851 MINUTE
HAND
85211
SWEEP SE COND HAND
5118 PILLAR SCREW
5443
SET LEVER SCREW
2576
DETENT SPRING
2556
DATE WHEEL ASS' Y.

Disassembly of movement for Cleaning (model 8 I)
DIAL TABS
(4)
MODEL 80 MOVEMENT
FIGURE I
FIGURE 2
To clean the Model 81 Movement
it is necessary to:
A. Remove the sweep second hand,
the minute hand and the hour
hand.
CANNON PINION ASS'Y. B.
The Dial Assembly is clamped to
the movement by means of four
tabs which are inserted through
slots in the Date Frame Assem-
bly into two holes in the Dial
Plate
and then bent under the
plate to secure the assembly
(see Figure 2 at left). Bend the
tabs slightly
to free the dial
from the movement and then
lift off in order (see Figure l at
lNG BOSS
tON BOTTOM)
LOCATING HOLE
left).
Dial
Date Ring
Hour Wheel
Washer
Hour Wheel Assembly
Date Wheel Assembly
Date Frame Assembly
Cannon Pinion Assembly
C. After the above parts have
been removed, the movement
can be disassembled, cleaned,
lubricated, and reassembled
as
outlined for the Model 80 Move-
ment starting
on Page 80.3.
D. Extreme care must
be exercised
in cleaning Dials, Hands,
and
Date Rings. Solvent type clean-
ers
will often damage the finish.
81.3

81.4
Reassembly of the model 81 movement
After the basic movement has been lubricated and reassembled as out-
lined
for the Model 80 movement, the Model 81 reassembly is completed
os follows:
Assemble the Detent Spring (if loose) into the Date Frame Assembly.
Place the
date frame assembly on the M-80 movement being sure the date
frame bosses are located in the 2 holes in the Dial Plate (see Figure 1
on Page 81 . 3) . Assemble in order:
Date Wheel Assembly
Cannon Pinion Assembly
Hour Wheel Assembly
Hour Wheel Washer
Lubricate the Cannon Pinion bearing
area and the Date Wheel bearing
area with fine watch oil (Elgin M56b is used in the factory).
Position the Date Ring on the Date Frame assembly.
Lubricate the face
of the Date Ring and the Detent Spring with fine watch
oil
as shown in the illustration below (Elgin M56b is used in the factory).
Insert the Dial tabs (tabs should be straight) through the slots
in the Date
Frame assembly.
Hold the Dial in position and bend the four tabs under
the Dial Plate.
TO POSITION HANDS FOR PROPER DATE CHANGE
With the Dial assembled to the movement, pull the crown and stem
ass e mbly into the set position and rotate the crown clockwise until the
date starts to move. Continue to rotate slowly until the date jumps into
place-stop rotating. Replace all hands at the 12 o'clock position. Be
certain the Sweep Second Hand is set below the chamfer on the top
of the staff as shown 10 illustration below.
Test the assembly for proper function of the hands and calendar
mechanism.
TO SET THE DATE
Pull the crown out to the set position and rotate the hands forward (clock-
wise) until the
date shown in the window changes. The dote may now be
advanced
rapidly by first rot ating the hands backwards post 9 o'clock
and then rotate them
forward past 12 o'clock. The dote will advance
each time the
backward-forward cycle is repeated. The dote may also be
advanced
by rotating the hands forward through 24 hours. After the
correct
dote is set and remembering that the dote change occurred at
the equivalent of 12 o'clock midnight, set the time properly for AM or
PM; otherwise, the next date change will occur during mid-day instead
of at midnight .