Black Hawk bottle jack


  #1  
Old 05-27-23, 01:12 PM
Geochurchi's Avatar
Member
Thread Starter
Join Date: Nov 2012
Posts: 5,018
Received 158 Upvotes on 144 Posts
Black Hawk bottle jack

Hi All, anyone familiar with these type of bottle jacks, itís been filled with hydraulic oil, attempted bleeding air as described in other links to no avail, piston will not retract, looking for parts breakdown and any other advice.
Thanks
Geo🇺🇸




 
  #2  
Old 05-27-23, 03:46 PM
B
Member
Join Date: Oct 2015
Location: Ct.,USA
Posts: 2,928
Received 259 Upvotes on 231 Posts
If you filled the oil reservoir with ram in the up position, there is no place for the oil in the ram to go when attempting to lower. Drain some oil from the reservoir, then try to lower ram.
 
  #3  
Old 05-27-23, 03:59 PM
Geochurchi's Avatar
Member
Thread Starter
Join Date: Nov 2012
Posts: 5,018
Received 158 Upvotes on 144 Posts
It wouldnít Close even when it was low on oil , any thoughts on how I can retract the piston, even if i drain some oil out, does this pump separate at the top? I obviously know little about it.
Geo🇺🇸
 
  #4  
Old 05-28-23, 12:19 PM
B
Member
Join Date: Oct 2015
Location: Ct.,USA
Posts: 2,928
Received 259 Upvotes on 231 Posts
The oil to the ram enter at/near the bottom of ram. Place problem jack under a jacked up vehicle with the ram touching frame and the valve in the lower position. Lowering frame should lower the ram. If not, lowering oil path has an obstruction. Will need to be disassembled to repair.
 
  #5  
Old 05-28-23, 12:41 PM
Geochurchi's Avatar
Member
Thread Starter
Join Date: Nov 2012
Posts: 5,018
Received 158 Upvotes on 144 Posts
What I really would like is a parts breakdown of this jack.
Thanks
Geo🇺🇸
 
  #6  
Old 05-30-23, 03:02 AM
M
Forum Topic Moderator
Join Date: Mar 2005
Location: USA - N.E.Tn
Posts: 45,416
Received 786 Upvotes on 689 Posts
For the most part all the bottle jacks are similar so a diagram of one will be a lot like another.
 
  #7  
Old 06-10-23, 04:36 AM
Geochurchi's Avatar
Member
Thread Starter
Join Date: Nov 2012
Posts: 5,018
Received 158 Upvotes on 144 Posts
Update, once I was able to remove the top I took it all apart cleaned and reassembled and it works like new.
Geo🇺🇸
 
  #8  
Old 06-10-23, 05:47 AM
M
Forum Topic Moderator
Join Date: Mar 2005
Location: USA - N.E.Tn
Posts: 45,416
Received 786 Upvotes on 689 Posts
It's neat and satisfying when you can resurrect and old tool
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description: