5 types of canon pinions

Published on: February 23, 2014
Categories: REPAIRING

 

 

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WATCH HANDS AND CANON PINIONS

 HANDS-WORK.jpg (35731 bytes)

 

WATCH SECOND HAND RUNS HANDS DO NOT

 

WATCH SECOND HAND RUNS AND HANDS RUN
BUT HANDS STOP WHEN DATE/DAY IS SUPPOSED TO TURN

 

INDICATION OF
LOOSE, WORN OR BROKEN CANON PINION

 

A

1- IS THE CENTER SHAFT ON A WATCH WITH SWEEPS SECONDS
THE MAINSPRING TURNS THE WHEEL/GEAR OF #1 WHICH HOLDS THE SECONDS HAND1-
THE CENTER #1 SHAFT ALSO TURNS THE CANON PINION # 2.

THIS IS THE PART THAT RUNS THE HOUR AND MINUTE HAND

B
THE CANON PINION IS A HOLLOW TUBE WITH A WHEEL/GEAR AT BOTTOM SLIPS OVER CENTER SHAFT AS THE WATCH RUNS, THE SECOND HAND RUNS AND THE FRICTION BETWEEN THE CENTER SHAFT AND CANON PINION
TURNS THE MINUTE HAND THAT IS ATTACHED TO THE [ 2] CANON PINION.

C
THE CANON PINION’ S GEAR AT BOTTOM IS CONNECTED TO THE MINUTE WHEEL AND AS IT TURNS THE MINUET HAND IT ALSO TURNS IT THE MINUTE WHEEL ]RIGHT ABOVE] WHICH TURNS THE ATTACHED REDUCTION GEAR THAT IS CONNECTED TO THE HOUR WHEEL AND THE HOUR HAND THAT IS ATTACHED.

E
THE HOUR HAND THAT IS ATTACHED TO THE HOUR WHEEL

F

IT IS UTTERLY IMPOSSIBLE FOR ANY HAND TO NOT WORK AS IT SHOULD UNLESS

1- THE MINUTE HAND OR HOUR HAND HAVE LIFTED OFF THEIR PERSPECTIVE MOUNTS
2- ONE HAND COULD COME LOOSE AND STICK TO ANOTHER
3- A SECONDS HAND COULD COME LOOSE/

HANDS ARE FRICTION FIT, ON VINTAGE WATCHES ONE MUST USUALLY USE THE ORIGINAL HANDS. THEY CAN COME LOOSE -ESPECIALLY IF SOME ONE TURNS THE HANDS LIKE THEY ARE A OPERATING A NEW QUARTZ WATCH,  IT IS RECOMMENDED TO SLOWLY TURN HANDS WHEN SETTING AND ONLY SET/TURN CLOCK WISE NEVER COUNTER CLOCKWISE [LEFT], PARTS HAVE BEEN RUN FOR DECADES ONE WAY, THUS THEY ARE “WORN IN”.  BY REVERSING THE TURN WEAR CAN DEVELOP.

 

 

5 TYPES CANON PINIONS

 

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TYPE A
OVER CENTER

CANON PINION IS SNAPPED ON OVER
CENTER SWEEPS SECONDS PINION
[CENTER SWEEPS SECONDS]
OR
OVER CENTER WHEEL PINION
[SUB-SECONDS]

 

HANDS-WORK2.jpg (63091 bytes)

 

NOTE SECOND HAND POST
MINUTE HAND OFF CANON PINION
HOUR HAND OFF HOUR WHEEL

IF SWEEP SECONDS  THE  CANON PINION WILL HAVE
HOLE FOR SWEEP SECOND HAND

 

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TYPE B
OVER CENTER

CANON PINION IS SNAPPED ON OVER
HOLLOW CENTER WHEEL POST
FOR SEPARATE SWEEP SECOND HAND

 

HANDS-HACKED-SWEEPS.jpg (63594 bytes)

 

NOTE CANNON FITS OVER HOLLOW POST THE TURNS
ADDITION WHEEL WITH POST AND PINION TURNS SECOND HAND

 

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TYPE C
ON TOP OF PLATE
NEXT TO SETTING BRIDGE
OFFSET WITH CANON PINION
ON TOP NEXT TO SET BRIDGE

 

CANON-PINION-OFFSET.jpg (13024 bytes)

 

AS 1903/04 AUTO -AS 1950 MANUAL
CANON PINION IS OFFSET REMOVED THROUGH
TOP OF MOVEMENT NEXT TO SET BRIDGE

 

HANDS-WORK2.jpg (63091 bytes)

 

THE ABOVE IS OFF SET ON TOP
THE

 

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TYPE D
BELOW TOP PLATE
OFF SET FROM SETTING BRIDGE

 

canon-pinion-under.jpg (14786 bytes)
CANON PINION LOCATED UNDER TOP PLATE
SEE ZODIAC SEA WOLF BELOW

 

canon-pinion-under-2.jpg (14625 bytes)

 

O MUCH FORCE IS REQUIRED TO OPERATE DAY/DATE MODELS
THAT THE CANON PINION WEARS AND BECOMES LOOSE
TIME MAY WORK GREAT BUT HANDS STOP WHEN DAY DATE
WHEEL/WHEELS ARE TURNING

 

http://goldsmithwatchworks.com/how-to-repair-zodiac-sea-wolf-off-set-canon-pinion/

 

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TYPE E

CANON PINION SNAPS INTO A WHEEL
THIS WHEEL IS POWERED FROM A WHEEL BELOW
TOP PLATE OPPOSITE FROM SETTING BRIDGE
THREE FEET ON CENTER WHEEL  SNAP AROUND
AN EXTENSION ON BOTTOM OF CANON PINION

FRICTION ALLOWS THIS WHEEL TO TURN CANON PINION
WHEN SETTING HANDS THE POWER OF SETTING WHEEL
OVERCOMES FRICTION TO SET HANDS

PROBLEM IS THE FEET WERE DESIGNED TO MAINTAIN FRICTION
AS FEET EDGES WORE. BUT AFTER SO MANY TURNS OF DAY DATE WHEELS
THE WEAR EXCEEDS THE ABILITY TO MAINTAIN PRESSURE
AT ,MOMENT OF DATE WHEEL CHANGE NOT ENOUGH
PRESSURE AND THE ACTUAL WEAR CAUSES CANON PINION TO CEASE TURNING

 

WEAR = REDUCED PRESSURE THUS FRICTION DIMINISHES

 

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most worn canon pinion on the sea wolf and other off set pinions can be tightened
for best hand tool locate a “cutting” tweezers.  tips are flat with toe nail clipper look
dull the cutting edges. place pinion on dull broaching tool near half position
tighten with squeeze of tool
experiment before

BROACHING TOOLS
search ebay +  broaching tools-then use some fine metal sanding paper to dull the 4 cutting edges
place pinion over appropriate dulled broach then gently place tweezers over pinion staff ( half way) and squeeze.

A filed & dulled  toe nail clipper works also. key is that dulled steel broach inside the canon pinion tube

note: filing and dulled that toe nail clipper is a must. you want to trim it.
i used a flex shaft with disc sanding pads. tit has to be thin, and the “cutting” edge even thinner with it dulled
i actually made a rounded edge top/bottom that hols the pinion!e

to insure you do not tighten so much that  the broach remains in the tube
LOL
use some ingenuity – found a tiny  rubber block and mounted it so you cannot tighten the tool too much

like my jewelers trick for clasps that wear out and can no longer hold, heat does not work cause it makes the softened clasp even softer. hardening the entire bracelet can cause solder issues. a new one can be 100.00 with soldering fess.

 i began placing a rubber band over then under the part that slides through the lock.
these freely “repaired”  clasps lasted  longer than the original lock.
note- you cut both ends of the band – the par under cannot be seen except viewing horizontal close uop
the bend of gold now stays up and squeezes down into the lock

INVESTING IN THE CANON PINION TOOL

an actual tool to tighten canon pinions exists. used watch parts dealers have them
it is a steel tube w/round steel base. a softer  steel tool is set with a notched “v” at its top

across from the V is a hole cut through the tube,
looking through this hole you see it lines up with the notched tool
place the canon pinion over an appropriates broaching tool.
slide the broach w/pinion through the hole and then over the V
allign it appropiately.
the area that must be “pinged or dimpled is usually the center of  the pinion.
canon pinions have hardened areas at top and at base where the gear is
canon pinions are heat treated and are brittle by nature
you want to just tighten the “clear tube” area.
with tube area over the tool, you drop in the second part of this tool,
a  steel tool that slips into the top of the tube and comes to rest exactly over the V portion of the tool.
if you have your pinion resting correctly, the tool will be over the appropriate are.
now, gently tap the tool going through the tube
i use a brass/plastic hammer
about 10 inches with small brass head and plastic head
light weight so unless i am swinging it kike a roofing hammer
one bip or two does the job

you may want to expirement with old pinions

 

 

 

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by GoldSmithWatchWorks Thursday, 09 April 2009
Last Updated on Thursday, 09 August 2012

 

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