LX570 AHC Globe/Accumulator Replacement (31 Viewers)

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L will have the lowest system hydraulic pressure so it makes sense not to do it then.
 
I just helped a houston homie replace his globes last weekend. Incredibly easy and straight forward.

I've become a believer in bleeding while the rig is on and doors closed.
- bleed corner until suspension drops.
- close bleeder and wait a few seconds until AHC pump kicks on and begins replacing fluid (and raising).
- Repeat until desired... as long as you're making sure the tank is full of fluid.
Did you just fill up the reservoir first?
 
Did you just fill up the reservoir first?
Yep.
Opened the cap, inserted 3/8” tubing with a funnel at the end of it, filled res, left tube in and laid funnel on top of tire during whole process.
Filled Resi as needed with funnel.
 
Yep.
Opened the cap, inserted 3/8” tubing with a funnel at the end of it, filled res, left tube in and laid funnel on top of tire during whole process.
Filled Resi as needed with funnel.

Okay so cap off? I ask because last fluid change I kept getting an error cycling the pump when bleeding that went away once I put the cap on. Could be total coincidence AHC voodoo though.
 
Okay so cap off? I ask because last fluid change I kept getting an error cycling the pump when bleeding that went away once I put the cap on. Could be total coincidence AHC voodoo though.
It is weird, seems like very mixed reports on this. I can say for sure that when I was replacing a lot of fluid, that my pump would stop building pressure (usually 2-3mpa) if i left the cap on. Once I pulled the cap off, it would build pressure normally. There was a definitive break in pressure when I pulled the cap.
 
It is weird, seems like very mixed reports on this. I can say for sure that when I was replacing a lot of fluid, that my pump would stop building pressure (usually 2-3mpa) if i left the cap on. Once I pulled the cap off, it would build pressure normally. There was a definitive break in pressure when I pulled the cap.
Maybe I should bleed and leave the cap off. I left it on after I topped off.

Bleed in N


Front Driver
Rear Passenger

Front Passenger
Rear Driver

Per the FSM
 
Okay so cap off? I ask because last fluid change I kept getting an error cycling the pump when bleeding that went away once I put the cap on. Could be total coincidence AHC voodoo though.
100% cap was off when I did it last weekend. it wasnt my rig, so give a crap was low.... that's probably good advice for all of us. WHen it's our own rigs, pucker factor is high. as the kids would say, just yolo it.
 
I started this project the other day. I bled the DF and DR no issue. I tried to get the DF globe off, first with an impact gun, and then with a breaker bar, but the nut was rounded at that point. I ordered an extractor socket set (17,19,21,22mm) and a strap wrench. I then moved to the DR and was able to get the globe off with a breaker bar and pipe extension. There was rust on the mating surface of the globe and receiving AHC unit. It was late so I stopped work that day, but applied rust penetrant to the other 3 globes before wrapping up. Today I tried the 21mm extractor socket and the strap wrench with no success. Any other ideas before I try drilling a hole and jamming in a pry bar? If that’s the next step, where should I drill to have the best leverage? Is there any issue with leaving the car bled down on the DS while I work on this DF globe when I can (may be a few days)? I took the AHC protection bracket off the PS, but haven’t done anything to those globes yet other than apply the rust penetrant.

Pics below of DF globe as it currently sits.
IMG_9963.jpeg
IMG_9965.jpeg

IMG_9964.jpeg
 
I started this project the other day. I bled the DF and DR no issue. I tried to get the DF globe off, first with an impact gun, and then with a breaker bar, but the nut was rounded at that point. I ordered an extractor socket set (17,19,21,22mm) and a strap wrench. I then moved to the DR and was able to get the globe off with a breaker bar and pipe extension. There was rust on the mating surface of the globe and receiving AHC unit. It was late so I stopped work that day, but applied rust penetrant to the other 3 globes before wrapping up. Today I tried the 21mm extractor socket and the strap wrench with no success. Any other ideas before I try drilling a hole and jamming in a pry bar? If that’s the next step, where should I drill to have the best leverage? Is there any issue with leaving the car bled down on the DS while I work on this DF globe when I can (may be a few days)? I took the AHC protection bracket off the PS, but haven’t done anything to those globes yet other than apply the rust penetrant.

Pics below of DF globe as it currently sits.
View attachment 3302624View attachment 3302625
View attachment 3302626

Just drill the hole lol. That’s what I did. Just took it slow, pressure was surprisingly low
 
Lol I thought of you with the drilling. Where should I drill at on the globe?
At the widest point so you can jam a pry bar into it and get maximum leverage
 
And where you have the most swing and length for the prying tool
 
Another route would be to file or grind a notch into the outer circumference then smack that flat area with a punch and hammer. I used this method to get the accumulators off the dead from cancer KDSS valve I dismantled, and those were much smaller diameter.
 
I started this project the other day. I bled the DF and DR no issue. I tried to get the DF globe off, first with an impact gun...
IMPACT gun?? first move should have been breaker bar with 21mm 6 sided socket.
And did you drain both the DF and DR?
You should be draining one corner at a time, then swapping out the globe, then starting the rig to let the pump replace the fluid.... then bleed all the air out of that corner and move on to the next.
 
Good point radman: this is exactly the wrong application for an impact gun.

The globe is relatively high mass, and an impact gun works by using a hammer to shock a fastener loose from whatever solid object it’s attached to, so the impact gun will literally try to shear the hex right off the globe.
 
Thanks for the assistance everyone! In every challenge is a learning opportunity and I certainly learned a few things and picked up some new tools. After drilling the hole last night, I tried the pry bars I had and none fit so I ordered a new tapered pry bar. It was delivered today and I finally got the DF globe off! I got the other two globes off no problems and bled everything as directed. Below is the offending globe.

IMG_9975.jpeg
 
Thanks for the assistance everyone! In every challenge is a learning opportunity and I certainly learned a few things and picked up some new tools. After drilling the hole last night, I tried the pry bars I had and none fit so I ordered a new tapered pry bar. It was delivered today and I finally got the DF globe off! I got the other two globes off no problems and bled everything as directed. Below is the offending globe.

View attachment 3304816


Great job. How is the ride quality? How many miles on your lx?
 
Thanks for the assistance everyone! In every challenge is a learning opportunity and I certainly learned a few things and picked up some new tools. After drilling the hole last night, I tried the pry bars I had and none fit so I ordered a new tapered pry bar. It was delivered today and I finally got the DF globe off! I got the other two globes off no problems and bled everything as directed. Below is the offending globe.
Nice work! I bet it feels good to have that behind you
 

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