Wood hydraulic hoist pump

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wild4679
Posts: 15
Joined: July 8th, 2017, 7:14 am
Body Type: 82B
Model Year: 1931

Wood hydraulic hoist pump

Post by wild4679 » July 23rd, 2017, 9:29 pm

I have a Wood hydraulic pump and hoist on the '31 AA I am restoring. Does anyone know where to find a schematic of the pump, as well as where to find parts? Also, the PTO driveline from the transmission to the pump needs universal joints. The joints on the driveline (I'm assuming these are original or NOS) have ball bearings instead of the more modern cross and cap with needle bearings. Where could I find these ball bearing u-joints?

njcar757
Posts: 67
Joined: March 4th, 2009, 4:00 pm
Body Type: closed cab
Model Year: 1929

Re: Wood hydraulic hoist pump

Post by njcar757 » July 24th, 2017, 6:53 am

I've worked on a lot of equipment with hyd systems. If your pump has been out of use for many years, you might soak it in a bucket of diesel fuel for a few days, I made an adapter that goes from a 1/2" drill chuck to the pump shaft, the pump will turn clockwise, then you will know which side is supply and suction. I would install the pump, find out if it works, if not take it to a repair shop.
carry on nick c

wild4679
Posts: 15
Joined: July 8th, 2017, 7:14 am
Body Type: 82B
Model Year: 1931

Re: Wood hydraulic hoist pump

Post by wild4679 » July 24th, 2017, 8:30 am

Thanks Nick. I'm assuming I can drain the hydraulic oil and fill the pump with diesel while it's still mounted to the truck frame. When connected to the 1/2 inch drill, can the pump be tested with the diesel as the fluid or does the pump need to be drained, washed, and refilled with hydraulic oil prior to testing?

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Chris Haynes
Posts: 1892
Joined: September 7th, 2003, 5:18 pm
Body Type: 82A
Model Year: 1930
Location: North Hills, CA/ Pine Grove, CA

Re: Wood hydraulic hoist pump

Post by Chris Haynes » July 24th, 2017, 10:47 am

I am not positive but to me if you are to soak it in a bucket of diesel fuel it would have to be removed.

Bob C
Posts: 1058
Joined: April 24th, 2003, 11:50 am
Body Type: Mail truck, Stake tr
Model Year: 1931
Location: SO CAL

Re: Wood hydraulic hoist pump

Post by Bob C » July 24th, 2017, 1:46 pm

Is this the pump you have?

Bob
$(KGrHqZHJDoE8fgEdZ6eBPOV0Jw9nQ~~60_57.jpg
$(KGrHqZHJDoE8fgEdZ6eBPOV0Jw9nQ~~60_57.jpg (503.22 KiB) Viewed 248 times

njcar757
Posts: 67
Joined: March 4th, 2009, 4:00 pm
Body Type: closed cab
Model Year: 1929

Re: Wood hydraulic hoist pump

Post by njcar757 » July 24th, 2017, 4:42 pm

If the hydraulics have not been in use for a long time, I would remove it and soak it in diesel. The diesel fuel is too thin to test for pressure. If you remove the cylinder and take it apart, you may be surprised how much sludge is in it. If it has a reservoir, clean it out, look for a filter or screen somewhere.
carry on nick c

wild4679
Posts: 15
Joined: July 8th, 2017, 7:14 am
Body Type: 82B
Model Year: 1931

Re: Wood hydraulic hoist pump

Post by wild4679 » July 24th, 2017, 7:30 pm

Bob,

That's my pump. Are there any more pages to that booklet that are of significance to the pump? The only difference I can see from the illustration is the mechanical portion of the hoist (I think I have an earlier version) and the illustration has a more modern looking universal joint in the PTO driveline.

Thanks for the help.

Bob C
Posts: 1058
Joined: April 24th, 2003, 11:50 am
Body Type: Mail truck, Stake tr
Model Year: 1931
Location: SO CAL

Re: Wood hydraulic hoist pump

Post by Bob C » July 25th, 2017, 4:16 pm

Near the back of the Body Parts List "A" & "AA" April 1932 There are pictures and part numbers of all the dump parts.
On page 219 it has a picture that looks like the u-joint you have. There are two copies of this book. The one by Polyprints is
5.5" X 8.5" and has very clear pictures the one by Lincoln Publishing is 8.5" X 11" but the pictures are not very good.

Bob
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Stakebed
Posts: 1035
Joined: June 14th, 2007, 7:29 pm
Body Type: Grainbox
Model Year: 1929
Location: Illinois

Re: Wood hydraulic hoist pump

Post by Stakebed » July 25th, 2017, 7:13 pm


Bob C
Posts: 1058
Joined: April 24th, 2003, 11:50 am
Body Type: Mail truck, Stake tr
Model Year: 1931
Location: SO CAL

Re: Wood hydraulic hoist pump

Post by Bob C » July 25th, 2017, 7:27 pm

That looks like the u-joint on my Wood pump.

Bob
pto-joint.jpg
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wild4679
Posts: 15
Joined: July 8th, 2017, 7:14 am
Body Type: 82B
Model Year: 1931

Re: Wood hydraulic hoist pump

Post by wild4679 » July 25th, 2017, 9:45 pm

My PTO u-joints are different. When I get back to the shop, I'll take a photo and submit to the forum. Not a big deal if I can't replace them. I'll put modern u-joints in their place.

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Chris Haynes
Posts: 1892
Joined: September 7th, 2003, 5:18 pm
Body Type: 82A
Model Year: 1930
Location: North Hills, CA/ Pine Grove, CA

Re: Wood hydraulic hoist pump

Post by Chris Haynes » July 25th, 2017, 10:53 pm

I don't know if this would work for your application or not.
http://www.ebay.com/itm/Ford-Model-AA-T ... 2389154706

wild4679
Posts: 15
Joined: July 8th, 2017, 7:14 am
Body Type: 82B
Model Year: 1931

Re: Wood hydraulic hoist pump

Post by wild4679 » July 26th, 2017, 10:10 pm

Thank you to Chris and Bob for both sharing the Ebay offering of the PTO driveline. I think all I need is the universal joints, so I'll start with adapting some new ones. Keep the suggestions coming.

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