Bendpak HD-7W Air Supply

[barnee]

I'm ordering my lift shortly and I need to install the air line from my compressor to run the locks and the RJ-4500 Jack and have a few questions for those that have this lift. I'm using a California Air Tools 2HP 15 gal compressor which has the right specs for the lift locks but not enough air volume for the RJ-4500.

The manual says the lift locks needs a lubricator on the air line, but after reading many threads I don't see people doing this. Is this required?

I understand that since I don't have the recommended air volume for the RJ-4500, the only downside is the jack is just slower. Is this correct?

I have the power supply at 100" near the power column location. I was planning on putting the air connection with regulator and possibly the lubricator at the same location (filter will be near the compressor). Good plan?

The lift locks and RJ-4500 can both operate at 125 psi. I was going to use the same regulator for both uses. Does this make sense?

I'm having the lift professionally installed but want to have this air line finished and ready to connect. I'm going with Milton 3/8" FRL equipment which exceeds my air capacity.

If you have this lift let me know of any utility rough in info or lessons learned that you ran into.

 

[Twystd1]

It looks to me that you have enough compressor.
Assuming my googlefu is correct. Bendpack calls out "An air supply minimum 30 psi / 3 CFM"

Isnt your compressor around 5cfm at 60 psi?

-T

 

[thickhead]

I don’t know about the jacks, but I use a cheap airbrush compressor to operate the lift locks on mine. The 125psi from your compressor seems like it may be too much for the locks.

 

[PoorOwner]

Should work just fine for the jack, you may need to wait for it to build pressure, but 15G full will definitely put out enough air momentary to power the piston for a jack. I bet it won't strain at all, As for the lubrication, just put a couple drops in the air fitting before using it for the day.

 

[barnee]

After thinking through this, it might be better to have a fixed line for the locks and just run the jack from my hose reel.

The locks need min 30 psi and max 125 psi. while the jack needs 125 psi, so the fixed line I can set the pressure to around 50 psi to just run the locks.

I will not be using the jack very often so it wouldn't be much of a issue to hook up a line when I use the jack. Do you need to keep the air pressure on the RJ-4500 jack after its lifted the car or can you take the air line off?

 

[garagelogician]

After thinking through this, it might be better to have a fixed line for the locks and just run the jack from my hose reel.

The locks need min 30 psi and max 125 psi. while the jack needs 125 psi, so the fixed line I can set the pressure to around 50 psi to just run the locks.

I will not be using the jack very often so it wouldn't be much of a issue to hook up a line when I use the jack. Do you need to keep the air pressure on the RJ-4500 jack after its lifted the car or can you take the air line off?

The bridge jack has locks, similar to the lift. You should always have the bridge jack locks engaged when a car is on it, so you can easily take the air line off.

 

[barnee]

The bridge jack has locks, similar to the lift. You should always have the bridge jack locks engaged when a car is on it, so you can easily take the air line off.

Thanks for the info. It makes more sense to just hook up a line right to the jack when I need to use it.

 

[jcthorne]

I have a Bendpak lift with two RJ-45 trolly jacks and it all runs from a single 1 HP California air tools compressor. The RJ45 does not consume enough air to empty the compressor tank so you can fully lift it without running out of air. Also it only needs 125 psi to get to a full 4500 lbs lift at full height. IE you will likely never need that much air pressure on it. I have a single 3/8 line feeding the lift. There is a filter/regulator/lubricator mounted on the back of the same column as the hydraulic pump and it feeds both the locks and both jacks with 75psi air. I have never needed more than that in the 3 years I have used the lift. And I work on an 8500 lb Excursion 4WD diesel all the time.

 

[barnee]

I have a Bendpak lift with two RJ-45 trolly jacks and it all runs from a single 1 HP California air tools compressor. The RJ45 does not consume enough air to empty the compressor tank so you can fully lift it without running out of air. Also it only needs 125 psi to get to a full 4500 lbs lift at full height. IE you will likely never need that much air pressure on it. I have a single 3/8 line feeding the lift. There is a filter/regulator/lubricator mounted on the back of the same column as the hydraulic pump and it feeds both the locks and both jacks with 75psi air. I have never needed more than that in the 3 years I have used the lift. And I work on an 8500 lb Excursion 4WD diesel all the time.

Thanks, that's the info I was looking for,

So you do have a lubricator on the line? Any benefit having the F/R/L on the column post as opposed to the wall?

 

[jcthorne]

Thanks, that's the info I was looking for,

So you do have a lubricator on the line? Any benefit having the F/R/L on the column post as opposed to the wall?

None other than it was a convenient location in my install. My air line comes down from overhead drop along with power. Yes, there is a lubricator in the air set. I used an IR air set.

 

[barnee]

Ordered the left yesterday and beat the price increase. Should have it shortly and have hired an installer to set it up.

Went with a Milton Trio 1/2" FRL for the lift locks which will be permanently connected to an air supply. Since the 1/2" wasn't much more than the 3/8" I decided to oversize it and have the same size as the copper line.

I will be connecting the RJ-4500 Jack up to my hose reel when I need to use it which will be infrequent, which will have a Milton FR on that line. I will just add oil to the line if I need it.

 

[erik a]

I went with Bendpak's air bottle accessory...

The hydraulic cylinder fills it with 150 psi air as it raises the lift, then you are all set when time comes to lower. And no noisy compressor.

 

[pbon]

The bottle works fine for a storage lift. For a working lift with air jacks, you need a compressor but it seems like a small one will do.

 

[erik a]

True that.
I have a compressor for the air jacks, but since I raise and lower the lift more than I use the jacks, it is nice to not have hoses in the way.

 

[barnee]

Finished my air manifold for the lift and for the jack.

The top outlet has a lubricator, regulator and filter that will be permanently piped to the lift for the locks, and its right next to the 220 supply for the lift at the top column height (100"). Its about 5 feet horizontally to the power side lift column.

The lower outlet just has a regulator and filter, and I will pipe this to a 50' hose reel that's on order. Ill just connect it to the jack (and other air tools) when I use it which will be infrequently and will put a couple drops of oil in as needed.

I went with the cox reels manual reel which should be here next week.

Now I just need the lift which has shipped.

 

[pbon]

I just plumbed 140’ of 1/2 copper for the carriage house I am renovating into my shop. I have not done all the terminations yet since drywall and paint are coming in the next week or two. I have an HD9-XW waiting to assemble. I thought the locks just need air and not lubrication since Bendpak sells a bottle adapter. I worko on my cars so I bought the rj45 jacks and those probably do need oil so I will have to figure out how to incorporate that. I’ll probably do separately from the other lines like you have done (I have 5 drops downstairs) since nothing else I use requires automatic lubrication (I just put a drop or two in air tools when I use them).

 

[barnee]

I just plumbed 140’ of 1/2 copper for the carriage house I am renovating into my shop. I have not done all the terminations yet since drywall and paint are coming in the next week or two. I have an HD9-XW waiting to assemble. I thought the locks just need air and not lubrication since Bendpak sells a bottle adapter. I worko on my cars so I bought the rj45 jacks and those probably do need oil so I will have to figure out how to incorporate that. I’ll probably do separately from the other lines like you have done (I have 5 drops downstairs) since nothing else I use requires automatic lubrication (I just put a drop or two in air tools when I use them).

I thought it was odd that the locks need lubrication, but its in the installation manual for the HD-7W and my bendpak certified installer says its required. Probably useless but I don't want to void any warranties