blackhawk SJ2 handle support removal
- Thread starter vmaxman61
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whateg01
Well-known member
I'm not really familiar with the SJ2, but if the pins don't press out, you may have to loose one of the side plates so that there's clearance, and honestly, that's probably what I would do.
Dave
Dave
paulsomlo
Well-known member
You're referring to the yoke.
The two "shafts" are held in place with two drive pins, #8 in the diagram linked below. The pins should be driven in from the front of the yoke, so you'll need to drive them out from the back.
So, did HPS have the part for the release valve?
It might be better if you post in the original thread and keep everything regarding this jack in one place.
https://www.hcrcnow.com/uploads/drawings/sears727.12102.pdf
The two "shafts" are held in place with two drive pins, #8 in the diagram linked below. The pins should be driven in from the front of the yoke, so you'll need to drive them out from the back.
So, did HPS have the part for the release valve?
It might be better if you post in the original thread and keep everything regarding this jack in one place.
https://www.hcrcnow.com/uploads/drawings/sears727.12102.pdf
Thanks for response. As you state it is the drive pins that need to be removed. If I understand they need to be driven out from the inside of the yoke correct? I did buy a replacement have installed and is working well. The jack raises minimally with each stroke of the handle I assume this is normal. thanks again
paulsomlo
Well-known member
There are two kinds of pins in play here - the large ones the yoke pivots on and two that are smaller in diameter that secure the large ones. The two smaller ones run transverse to the larger ones. The heads should be visible on the front side of the yoke. You'll need to drive the smaller pins out from the back towards the front. Then you can tap the larger pins inward and remove the yoke.
Wow . I understand now thanks for clarifying. I have another issue with the jack. I did a quick test with it when first getting it. It would lift the vehicle but I did not realize that it was slowing descending at the same time. I do not see any fluid leaking. Suggestions appreciated, thanks
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paulsomlo
Well-known member
When it does this, does the handle try to rise as the vehicle descends?
To answer your other question - I think my SJ2 takes about 20 pumps to reach full height.
To answer your other question - I think my SJ2 takes about 20 pumps to reach full height.
paulsomlo
Well-known member
When you put the release valve assembly back in, did you make sure the little ball went in first?
paulsomlo
Well-known member
So you're able to raise the vehicle, but then it descends slowly? If that's the case, the two most likely culprits are the release valve not holding pressure or the piston cup on the ram is worn.
paulsomlo
Well-known member
Was thinking about this - the broken release assembly; that's from someone cranking on it, probably because it wasn't holding the load. So, this issue probably has existed for some time.
paulsomlo
Well-known member
If you unscrew the release valve, then unscrew the nut that it threads into, you'll find a rubber packing that keeps the fluid in. Other than that, the nut itself could be leaking where it threads into the hydraulic block, but it should be easy to tell where the leak is.
Here's the diagram, #15 is what you're after: https://www.hcrcnow.com/uploads/drawings/Blackhawk_SJ-2_Service_Jack_1.25_Ton.pdf
So what happened to the Walker - the 2nd one?
Here's the diagram, #15 is what you're after: https://www.hcrcnow.com/uploads/drawings/Blackhawk_SJ-2_Service_Jack_1.25_Ton.pdf
So what happened to the Walker - the 2nd one?
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I am still using the walker 93642 its a 2.5 ton jack, I was hoping to take the handle support off to do some cleaning but I am unable to remove the pins holding the dials in place. thanks for the help. May need to pick up a kit
whateg01
Well-known member
You should probably start your own thread rather than highjack this one, since this one is about a Blackhawk.
Dave
Dave
whateg01
Well-known member
Dang! Sorry! My bad! I'll go sit in the corner now!
paulsomlo
Well-known member
Hydraulic Parts Supply at 620-594-2247
paulsomlo
Well-known member
That's because when the valve is released, the fluid, which is under pressure, has only two places to go - either back to the reservoir or to the outside world through a compromised seal. It sounds like your fluid level is fine.
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thanks will pick up a kit. The saddle has 2 shafts holding it to the jack does the upper shaft slide out? It is in very tight. What do you guys use to remove the dial pins that are through the handle support ? the 1/4 inch transverse pins? I tried an old drill bit the drive them out but they are in very tightly as well, thanks
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paulsomlo
Well-known member
After removing the two retaining rings, the upper shaft should slide out - you may have to "persuade" it a bit.
I think you mean "dowel" pins? On my jack, they're actually splined pins with a head. They need to be driven from the back of the handle yoke towards the front - at least on mine. You should be able to see/feel the head of the pin on the front side of the yoke to confirm. They appear to be about 1/8" in diameter, so an 1/8" pin punch should do it.
I think you mean "dowel" pins? On my jack, they're actually splined pins with a head. They need to be driven from the back of the handle yoke towards the front - at least on mine. You should be able to see/feel the head of the pin on the front side of the yoke to confirm. They appear to be about 1/8" in diameter, so an 1/8" pin punch should do it.
paulsomlo
Well-known member
I just measured a pin from my parts jack - they're 3/16" in diameter and you'll want a 5/32" pin punch. The parts list refers to these as drive pins.
Here is a picture of a genuine Blackhawk kit for sj2, sj3 rebuilt. I bought it from the dealer 4 years ago but was not able to use it for the rebuilt. Anyone interested please PM me.View attachment 1040781
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