I'm stumped. On the right side of the power unit, I have the hydraulic line closest to me and the air line directly behind. Both in line with each other. The directions spec'd 90 degree elbows which came with the lift. Running the lines from the right side of the lift is straightforward. My problem is getting the air to the 90 on the right. The air comes from the compressor and into the billet aluminum block with the safety pushbutton. It then comes out the bottom of the block but goes where? It can't go to the 90 degree fitting that supplies the 4 posts. I'm trying to get this done but can't believe that I am stumped. Any ideas?
Bendpak HD9 assembly question.
- Thread starter Stain
- Start date
At least on mine...the left side of the power unit (when looked at from the front) is wherer the hook-ups are. The front spot with a plastic plug is the hydraulic line that goes to the ram. The third (or last) port is the air return line from the ram.
The hoses that feed each air-lock are the ones that are fed from the pushbutton release switch that your air goes into.
I can take a pic in the AM if it helps.
You need to pay attention to the type of fittings...once you realize there are hydraulic and air lines it is self explanatory.
The hoses that feed each air-lock are the ones that are fed from the pushbutton release switch that your air goes into.
I can take a pic in the AM if it helps.
You need to pay attention to the type of fittings...once you realize there are hydraulic and air lines it is self explanatory.
I do realize that there are separate air and hydraulic lines. I may have the different motor type as there are 2 that come on the HD-9. I may be missing a fitting. I believe the air enter the left side of the motor and exits the right.
slowTA
Well-known member
It sounds like your trying to run the air line that powers the air locks through the pump, this isn't correct. I ran the plastic line from the release button down the flex tube that goes to the power runway into one of the T fittings. My directions were a bit off as the ports on the pump didn't match up with the diagram. The port that came with the red plastic cap goes to the high pressure side of the cylinder (left side of my pump.) The air side of the cylinder goes to the same side of the pump as the high pressure (this port was capped with a allen head plug, the same thread size as the last fitting I had left.)
So the air comes into the button then to the runway without going through the pump at all.
Hope this helps.
So the air comes into the button then to the runway without going through the pump at all.
Hope this helps.
slowTA....that's exactly how mine was....and what I was trying to explain.
Indeed, the red plastic plugged port is the hydraulic port. Then, the one, behind (last one)that is the air return port. Nothing more is connected to the power unit.
The air compressor feed goes into the push button switch....and from the switch to the air locks. (as mentioned above) So...you'll have two "air lines" going into the runway.
I know there are slight differences on the power units...that said...I called Bend Pak to make sure I was doing this correctly as the directions were backwards.
Indeed, the red plastic plugged port is the hydraulic port. Then, the one, behind (last one)that is the air return port. Nothing more is connected to the power unit.
The air compressor feed goes into the push button switch....and from the switch to the air locks. (as mentioned above) So...you'll have two "air lines" going into the runway.
I know there are slight differences on the power units...that said...I called Bend Pak to make sure I was doing this correctly as the directions were backwards.
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e-tek
Well-known member
This is weird - I went out and took, then posted pics of my lift last night - now this morning they aren't here....
I'll do it again, even tho it looks like you got your answer...
I'll do it again, even tho it looks like you got your answer...
slowTA
Well-known member
Mine looks like Matt's, but my directions described e-tek's pump. Although it looks like everyone has added a pressure gauge but me!
e-tek
Well-known member
I sent you a PM. You're thinking that an air line goes into the block, or is needed for the RAM. The RAM only gets hydraulic fluid - going in and out of the tank under the pump. The air line only triggers the locks to unlock - the reason we have gauges is that they only need like 20lbs, but won't be wrecked if you run 100lbs into them for a while....
I was just re-reading all replies and Matt is confused (sorry Matt!). There's no "air" line going into the hydraulic block. They are both hydraulic lines - coming and going from the ram. SlowTA has it right. The only air line is the lock line.
I was just re-reading all replies and Matt is confused (sorry Matt!). There's no "air" line going into the hydraulic block. They are both hydraulic lines - coming and going from the ram. SlowTA has it right. The only air line is the lock line.
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E-Tek...no worries!
Perhaps I miss-spoke, or was incorrect...but I was merely using the instructions as my guide.
In numerous places on page 18 of the manual, it clearly refers to........."6. Run the Power Unit Hydraulic Hose, (90* End towards
HPU) and the Return Air Line through the Flex Hose to the
Power Unit. (See Fig. 10.7 )."
Not looking for an arguement...just 'splainin' where I got the term.
http://www.bendpak.com/files/221_1626989113.pdf
Perhaps I miss-spoke, or was incorrect...but I was merely using the instructions as my guide.
In numerous places on page 18 of the manual, it clearly refers to........."6. Run the Power Unit Hydraulic Hose, (90* End towards
HPU) and the Return Air Line through the Flex Hose to the
Power Unit. (See Fig. 10.7 )."
Not looking for an arguement...just 'splainin' where I got the term.
http://www.bendpak.com/files/221_1626989113.pdf
E-Tec and Matt. I spoke with Garage Equip Supply. They weren't sure at first about the air/hyd hook ups on the ram. I have the HD-F which is the newest model. On mine, the front port hooks to the distal end of the ram, nearest the extendable shaft. The back port acts and an air bleed to the back of the ram and merely allows pressure to come off. So it's hyd in the front and air in the back. I almost crapped myself when I thought I had a cheap air line holding hydraulic pressure! Lift works great. Can't complain.
slowTA
Well-known member
You have it right now. I think the air side of the ram may be there in case the seal inside starts to leak slowly, then the lift would take forever to move and maybe damage the motor/pump/high pressure line.