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Thread: O Granowski Power Hacksaw
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21st May 2020, 09:11 PM #1Golden Member
- Join Date
- May 2020
- Location
- Willowbank QLD
- Posts
- 520
O Granowski Power Hacksaw
Hello All
Today I picked up, with the help of a crane, my latest acquisition. It is an O Granowski Power Hacksaw that was originally made in Melbourne. The old bloke I got it off told me he tendered for it when the Ipswich Rail Workshops closed down and got it for scrap price. He didn't charge scrap price but both of us seem happy with the deal.
It turns on and runs which is a great start. Unfortunately it does not have a blade fitted and the rear mount for the blade may not have been assembled correctly. I can see it is meant to tension but I am not sure how the blade attaches.
So the gold plated solution would be if someone has a scanned copy of the original manual. I would be very happy with a description or photo of the blade mounting.
I would also be interested to find out how old this hacksaw is. It looks like if I give it a cleanup and service I should get at least 50 years out of it. The same probably can't be said for me.
Thanks
Steve
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24th May 2020, 05:19 PM #2Senior Member
- Join Date
- Nov 2019
- Location
- Brisbane
- Age
- 69
- Posts
- 452
Power hacksaw
Hello Steve.
Power hacksaws are usually measured from the center of the blade holes. You can judge it's capacity by the clearance from the bottom of the overarm to the teeth on the blade. I have a 12" and a 16" saw and use them both often. They are economical to run but a bit slow on solid stock. Take care at getting the vice fixed jaw at right angles to the blade. it makes a big difference.
A few pics would be nice.
BC
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24th May 2020, 05:44 PM #3Golden Member
- Join Date
- May 2020
- Location
- Willowbank QLD
- Posts
- 520
I have now worked out the blade mounting. The threaded piece that tensions the blade was broken so I made a new one. I have completed a test cut and for 1 inch bar it took 30 seconds.
I will include a photo, as the new guy here the moderators may not allow it.
Steve
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25th May 2020, 08:24 AM #4Senior Member
- Join Date
- Nov 2019
- Location
- Brisbane
- Age
- 69
- Posts
- 452
Hacksaw
Hello Reidy41.
I see your at Willowbank. We went past you on the way to Warwick Saturday. My shed is at Geebung. Clean that saw up and it should last 50 years. Check the electrics, mine was dangerous when I got it. All the old rubber insulation had perished.
Regards
BC
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25th May 2020, 05:12 PM #5Golden Member
- Join Date
- May 2020
- Location
- Willowbank QLD
- Posts
- 520
BC
I know Warwick very well. I went to high school there and Mum and Dad now live in town. I grew up 40 k's west at a District called Thanes Creek. My sister is out the other side of town toward Killarney.
The electric motor is not original and looks in good condition. Someone has removed the cutoff switch which I may replace.
Steve
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27th May 2020, 08:23 PM #6Senior Member
- Join Date
- Nov 2010
- Location
- Frankston south
- Posts
- 102
I Have the same machine, I'm happy with it so far..I see yours has an oil pump, what is that feeding?
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27th May 2020, 08:32 PM #7Golden Member
- Join Date
- May 2020
- Location
- Willowbank QLD
- Posts
- 520
As it stands there is a plastic tube that runs from the tank and did not go anywhere. I cleaned out the tank and put some soluble oil in it. It pumped that up at about 1/2 a liter a minute. It drains back to the tank.
Just near the down stop there is a vertical metal rod that does not appear to have any purpose in life. I am summarising that the oil feed should clamp to that and the height adjusted dependent on the diameter of the stock being cut.
The plastic tube is about as flexible as a 90 year old man on a cold winters morning so I will replace it in the near future and devise a clamp.
Steve
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21st Jan 2024, 07:04 PM #8Intermediate Member
- Join Date
- Aug 2010
- Location
- Melbourne
- Posts
- 25
Granowski Power Hacksaw
Hi Steve and Waxen,
I also have a Granowski power hacksaw #501. I bought it off ebay 10 years ago and have just started the restoration of this saw. Did you disassemble the main spindle? On mine, there is a 176 tooth spur gear and it's mated to a 16 tooth pinion. My question is that I want to take off the large gear and am wondering if it has a press fit, i.e., needing heat to expand the hub and pull it off the main shaft? I did a search and found your thread here. All else is fine with this saw. Just a pull down, rust removal, paint, lube and it should be good to last another 100 years. TIA.
George
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21st Jan 2024, 07:27 PM #9Golden Member
- Join Date
- May 2020
- Location
- Willowbank QLD
- Posts
- 520
George, I have not disassembled mine. If you need a close up photo of a part just let me know.
Steve
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21st Jan 2024, 07:47 PM #10Intermediate Member
- Join Date
- Aug 2010
- Location
- Melbourne
- Posts
- 25
Thanks Steve,
Other than this obstacle I am fine. I pulled down the dampener today. What a mess!
Funny thing, I was given 20 x 17" new blades and I bought the saw to use them, not the other way round. It's been fun so far, tomorrow I will use heat and see how I go. The pain is that the large gear has 5 spokes and my gear puller is a standard 3 jaw. I will improvise.
Cheers,
George
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