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Fans of the museum  Rate Topic 
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 Posted: Mon Aug 15th, 2016 12:57 pm
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Kim Frank
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Type AD Form A  sn 88825. This fan features a wrapped rear ring cage. Not the normal, but probably a carryover from the previous year. Notice the hole in the rear cover at the nine o'clock position. As best as I can figure, it is access to hold the rotor in place while attaching the blade..at least with the 60 cycle motors.

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Later Pancakes 019.JPG

Last edited on Mon Aug 15th, 2016 02:22 pm by Kim Frank

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 Posted: Mon Aug 15th, 2016 01:07 pm
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Kim Frank
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1901 Bracket fan  Type AE Form A  Notice that motor doesn't feature a switch in the back motor housing....

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Later Pancakes 008.JPG

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 Posted: Mon Aug 15th, 2016 01:08 pm
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Kim Frank
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But the switch and coil are in the base....

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Later Pancakes 010.JPG

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 Posted: Mon Aug 15th, 2016 01:34 pm
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Kim Frank
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Going backwards, the bracket fan for 1900 Type UI Form K has a hole in the knuckle, to convert the fan from wallmount to desk fan. Not sure how well that would work because of the forward sweep of the trunnion. There's a reason the 1900 16 inch swivel trunnion fan has three fingers projecting from the front of the base....the fan is extremely front heavy.

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 Posted: Mon Aug 15th, 2016 01:34 pm
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Kim Frank
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.......

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 Posted: Mon Aug 15th, 2016 01:37 pm
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Kim Frank
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1902 Type AB form B. Motor features five speeds for this year's models of 12 inch a/c fans....

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Later Pancakes 020.JPG

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 Posted: Mon Aug 15th, 2016 01:38 pm
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Kim Frank
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Back view.....

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Later Pancakes 021.JPG

Last edited on Mon Aug 15th, 2016 01:39 pm by Kim Frank

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 Posted: Mon Aug 15th, 2016 01:41 pm
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Kim Frank
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1902 Type AD Form B sn 104336

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Later Pancakes 024.JPG

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 Posted: Mon Aug 15th, 2016 01:45 pm
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Kim Frank
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Back view....I would venture to guess that these back switched fans were sold into the 1903 model year, but I have never ran across a back switched five speed that had a form C designation..

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Last edited on Mon Aug 15th, 2016 01:49 pm by Kim Frank

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 Posted: Mon Aug 15th, 2016 01:54 pm
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Kim Frank
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Okay, the year 1903 features the desk fan with a switch and regulating coil in the base. Motors are 4 strut, cages are ten wire pierced rear ring, blades are still using cast brass hub. Motor tags are large brass plates or bands. Motor rotors are still using a cast brass hub....This swivel frame  has the six o'clock strut found on it's swivel trunnion counterpart......

Type AB Form C  sn 153235

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Later Pancakes 026.JPG

Last edited on Mon Aug 15th, 2016 01:56 pm by Kim Frank

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 Posted: Mon Aug 15th, 2016 01:57 pm
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Kim Frank
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Side......

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Later Pancakes 027.JPG

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 Posted: Mon Aug 15th, 2016 01:58 pm
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Kim Frank
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Back....

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 Posted: Mon Aug 15th, 2016 02:00 pm
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Kim Frank
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1903 Type AD Form C sn 149461

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Later Pancakes 032.JPG

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 Posted: Mon Aug 15th, 2016 02:03 pm
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Kim Frank
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These models came as a BTH British Thomson Huston....

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 Posted: Mon Aug 15th, 2016 02:04 pm
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Kim Frank
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And CGE Canadian General Electric.....

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 Posted: Mon Aug 15th, 2016 02:14 pm
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Kim Frank
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1903 Type AB Form C sn 169279. The swivel trunnion model is Type AK instead of AD and Form remains C. Bases continue to be fully ribbed.  2nd variant features three struts instead of four. Cages start to have 8 s wires instead of ten and blades start to change from cast brass hubs to stamped brass. You will see 2nd and 3rd variants with combinations of blades and cages. I will say that I have never seen an eight s wire wrapped rear ring cage on any 1903 12 inch fan that I would consider correct......

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Later Pancakes 036.JPG

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 Posted: Mon Aug 15th, 2016 02:18 pm
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Kim Frank
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1903 3rd variant. Swivel frame remains Type AB and swivel trunnion remains Type AK. Motor characteristics remain the same with three struts, but the base for both models become half ribbed. Form letter remains the same for both models..... Form C

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Later Pancakes 038.JPG

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 Posted: Mon Aug 15th, 2016 02:33 pm
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Kim Frank
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The 1903 base switched fans used brass straps to clamp the regulating coil, the binding posts use a fiberous block, and  the porcelain switch is round. For the most part, this holds true for all three variants of 1903.

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Later Pancakes 030.JPG

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 Posted: Mon Aug 15th, 2016 02:35 pm
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Steve Rockwell
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Back to 89th post.....
   These photos and the commentary are really an education for me.  Thanks.

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AD B1 Switch.png

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 Posted: Mon Aug 15th, 2016 02:39 pm
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Kim Frank
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1904 12 inch models of stick and trunnion a/c fans are pretty much identical to the 1903 variants, except that wrapped cages appear on some fans. There is much debate on this, but be aware that they do show up. Blades for the most part are using stamped brass hubs. Type letters are still the same, but Form letter designation is D. The round porcelain switches start using an adapter plate to attach it to the base.......

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Later Pancakes 048.JPG

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 Posted: Mon Aug 15th, 2016 02:45 pm
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Kim Frank
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The later 1904 models start to feature porcelain switches with cast in mounting tabs. The motor tags become smaller, but continue to use the same Type and Form letter designations....

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Later Pancakes 049.JPG

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 Posted: Mon Aug 15th, 2016 02:47 pm
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Kim Frank
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Regulating coil still using straps for the most part, to hold it in place.

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Later Pancakes 053.JPG

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 Posted: Mon Aug 15th, 2016 02:59 pm
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Kim Frank
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1905......Changes to the base are a thumb screw and set screw on either side of the boss cast into the neck. Type and Form letters disappear from the motor tags. Serial number ranges 205001 to 238000. Trunnion stems go from 5/8ths to 3/4 inch. Regulating coils use disks instead of straps, and covers begin to cover the electrics in the base.

 

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Later Pancakes 064.JPG

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 Posted: Mon Aug 15th, 2016 03:00 pm
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Kim Frank
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Neck.....

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Later Pancakes 060.JPG

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 Posted: Mon Aug 15th, 2016 03:01 pm
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Kim Frank
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Trunnion stems...

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Later Pancakes 070.JPG

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 Posted: Mon Aug 15th, 2016 04:08 pm
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Chris A. Campbell
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Is 1904 the year cages became 8 wire?
The 1902 model and a few others have a hole to the left of coil holder. What is purpose of the hole?

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Last edited on Mon Aug 15th, 2016 04:20 pm by Chris A. Campbell

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 Posted: Mon Aug 15th, 2016 04:22 pm
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Kim Frank
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1903 ...I have found that eight wire cages appear during the 2nd variant model....See post 81 about my thoughts as to the hole in the rear cover...

Last edited on Mon Aug 15th, 2016 04:25 pm by Kim Frank

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 Posted: Mon Aug 15th, 2016 04:42 pm
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Kim Frank
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1906 is a transitional year. Bases become smooth. Everything else pretty much remains the same. The brass struts do become steel.....serial numbers range from 238001 to 277000.....

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Later Pancakes 065.JPG

Last edited on Mon Aug 15th, 2016 04:44 pm by Kim Frank

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 Posted: Mon Aug 15th, 2016 04:50 pm
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Kim Frank
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Mid year 1906.....The motor housing changes from the more styled earlier versions to a very plain, smooth housing.....Struts also change again to a plainer style....

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Later Pancakes 077.JPG

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 Posted: Mon Aug 15th, 2016 04:53 pm
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Kim Frank
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Electrics are now covered and binding post blocks are steel....both bases are 1906...notice the difference?

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Later Pancakes 079.JPG

Last edited on Mon Aug 15th, 2016 05:09 pm by Kim Frank

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 Posted: Mon Aug 15th, 2016 05:09 pm
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Kim Frank
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The oil return on the swivel frame models are different than their swivel trunnion counter parts. I see this in 1907 models also. The 2nd variant of 1906 remains the same thru model year 1907...s/n range 277001- 314500 and 1908 s/n range 314501-324XXX?

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Later Pancakes 080.JPG

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 Posted: Mon Aug 15th, 2016 05:12 pm
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Kim Frank
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The rear motor cover on the swivel frame(stick) models in their last style change are different that the covers used on the swivel trunnions models. I'll post a pic later.....I'm sure I have forgotten some things so please add to this post...

Last edited on Mon Aug 15th, 2016 05:14 pm by Kim Frank

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 Posted: Mon Aug 15th, 2016 05:34 pm
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Steve Stephens
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Thank you Kim for a great job on the GE pancakes showing, in chronological order, most of the 12" pancakes making it easy to see the changes over the years.   I have added a "link" to this thread on my pancake blog:

http://earlyfans.blogspot.com/2011/02/ge-pancake-1894-1908.html



Last edited on Tue Aug 16th, 2016 03:23 am by Steve Stephens

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 Posted: Mon Aug 15th, 2016 05:58 pm
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Jim Kovar
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Clickable link:

http://earlyfans.blogspot.com/2011/02/ge-pancake-1894-1908.html

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 Posted: Mon Aug 15th, 2016 06:50 pm
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Kim Frank
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With the exception of the Lynn Works model, you can visit all of the 10-12-14 inch GE pancakes shown, along with several models that weren't, right here at the AFC Museum...It is the entire timeline of pancakes all together.

Next up will be the 16 inch AC desk fans........

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 Posted: Mon Aug 15th, 2016 11:50 pm
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Terry Fisher
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Did all of the 1899 (top mounted oiler) GE fans have this kind of oiler cap?

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1899 GE Pancake oiler cap.jpg

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 Posted: Tue Aug 16th, 2016 12:13 am
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Russ Huber
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Terry Fisher wrote: Did all of the 1899 (top mounted oiler) GE fans have this kind of oiler cap?

Psssssssssst........grease cup.  Grease is ........G.ood E.nough. :clap::D

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 Posted: Tue Aug 16th, 2016 12:16 am
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Russ Huber
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Ted whittled a few of em. :D

http://www.afcaforum.com/forum1/27648.html

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 Posted: Tue Aug 16th, 2016 12:49 am
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Bill Hoehn
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Last edited on Tue Aug 16th, 2016 06:16 pm by Bill Hoehn

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 Posted: Tue Aug 16th, 2016 02:14 am
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Steve Stephens
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Bill Hoehn wrote: I've been reviewing the wire versus no wire grease cups, obviously always installed on the top. 

In my experience with earlier steam and auto engines, suspensions, other bipolar motors and various mechanisms, the manufacturers usually made extended threaded caps with instructions on how often to tighten them, and how much, until you had to refill them (mostly on movable machines), or they installed the wire or rod to push the grease into the warm bottom as necessary (mostly on motors and fixed machines).  
This c.1904 AEG grease cup is of the type you unscrew the cap, fill the cup full of grease, then replace the cap.  As needed the cap is screwed down a little (quarter to half turn maybe?) which forces a little more grease into the bearing.  Eventually the cap will be entirely screwed down and the cup empty and will have to be refilled.  The cup in the photo can be screwed down at least another half inch over time.

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CIMG4372.JPG

Last edited on Tue Aug 16th, 2016 02:15 am by Steve Stephens

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