Needs Pictures: 0
Results 1 to 4 of 4
Thread: Wadkin PK Crown Guard.
-
19th May 2021, 02:09 PM #1
Wadkin PK Crown Guard.
I was looking at a photo of Auscab's crown guard column - the column with the crank handle at the top to raise/lower the crown guard.
It seemed odd - or at least the mounting hole at the bottom seemed odd.
PK1.jpg Auscab's column (PK 1857 of 1956).
Odd? Yes it's ~9/16" or so diameter. The column is held on by two 1/2" BSW (12tpi) bolts. One goes through the hole, the other in the curved slot (to allow the guard to be pivoted clear of the saw blade). So a ~9/16" hole would be appropriate - but I'm used to the massive hole in mine. 7/8" diameter to be precise.
PK2.jpg My column (PKA 800 of 1945).
So I searched and found a restoration wallace did in 2019. It looks to also be ~9/16" - so I guess mine is the odd hole size .
PK1a.jpg Wallace's column (PKA 628 of 1941).
A friend offered to make me a new pin - with a 7/8" shank and a 1/2" BSW threaded end. But we had no way of machining a hex head, so we opted for a bush - with the head shaped like a Wadkin washer (turned not stamped, and with a chamfer on one edge). OD = 7/8"; ID = 1/2"; flange 1 3/8" x 5/16" thick.
PK3.jpg
Trial fit in the hole.
PK4.jpg PK5.jpg
Remove, coat with oil, reinsert and apply bolt.
PK6.jpg
And while we were at it, a matching washer for the slotted side.
PK7.jpg
Note: the slot is 5/8" wide, which looks to be consistent over the three column bases I looked at.
One disappointing thing is: the bolt isn't OEM Wadkin and out of curiosity I measured the thread. It 1/2" 13 tpi - which means it's been tapped UNC. And I suspect that tapping out a 1/2" 12tpi hole with a 1/2" 13tpi tap is going to leave a bastardised threaded hole . It's holding so far, with no sign of impending failure.
Lucky we didn't make a new pin - with a 1/2" BSW 12 tpi thread !!
Cheers, Vann.Gatherer of rustyplanestools...
Proud member of the Wadkin Blockhead Club .
-
19th May 2021 02:09 PM # ADSGoogle Adsense Advertisement
- Join Date
- Always
- Location
- Advertising world
- Age
- 2010
- Posts
- Many
-
20th May 2021, 10:13 PM #2
Nice fix Vann .
The older BSW English bolts are a lot nicer than the new stuff we get to choose from now at hardware stores aren't they .
There's about an extra 30% more meat to the head with some of them .
I remade a set screw for the Robinson Thicky the other day by re heating and hammering out a bolt head square then grinding . worked well . I may have to do some bolt heads too for one section of the Robinson but its a bit more involved with having to add weld .
-
3rd January 2024, 06:36 AM #3SENIOR MEMBER
- Join Date
- Apr 2013
- Location
- Brisbane
- Posts
- 638
I had a hideous time pulling the whole crown guard assemble apart. The solid shafts/steel bars were so tight on the castings it took a lot hammering (carefully and not so carefully) them through the castings. I did discover the tapered pins mind you which took my dad's 6 ton press to remove. This was by the far the hardest disassemble of parts on the saw.
Has anyone else found them parts to be so tight?
Is it supposed to be so tight? Or is it supposed to be free so you can make adjustments (can't actually see why you would want to adjust them once it's setup)?
-
21st April 2024, 03:50 PM #4SENIOR MEMBER
- Join Date
- Apr 2013
- Location
- Brisbane
- Posts
- 638
Been awhile since I had time to do anything but did a bit of restore on mine this weekend...
PXL_20240421_042910770.jpg PXL_20240421_042812110.jpg PXL_20240421_042841542.jpg
Similar Threads
-
VICTORIA 100 Crown Seal Coopers + 16 Crown Seal Kingfisher Beer Bottles For Sale
By thumbsucker in forum MISCELLANEOUSReplies: 0Last Post: 20th November 2017, 06:57 PM -
Remanufacturing the guard on a Wadkin AC
By L.S.Barker1970 in forum ANTIQUE AND VINTAGE MACHINERYReplies: 34Last Post: 4th September 2016, 03:54 PM -
Wadkin pk blade guard and support
By AJOE123 in forum ANTIQUE AND COLLECTABLE TOOLSReplies: 1Last Post: 6th December 2012, 11:51 AM -
Cutter head Guard for a Wadkin RD 16 inch planer
By Chipbreaker in forum ANTIQUE AND COLLECTABLE TOOLSReplies: 6Last Post: 28th October 2008, 02:55 PM -
Cutter head guard for a WADKIN 16 inch Planer
By Chipbreaker in forum WOODWORK - GENERALReplies: 4Last Post: 14th October 2008, 09:22 PM