- 1,505
- 1,171
- 113
- Location
- TN
Ok so my cab went up, and now it won't go all the way down. Bad check valve or stuck valve?-
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M1088 Cab went up, now won't come all the way down
- Thread starter Reworked LMTV
- Start date
Ok so my cab went up, and now it won't go all the way down. Bad check valve or stuck valve?
- 3,871
- 497
- 83
- Location
- Gray Court SC
Hope it's not a hydraulic lock on ram.
- 3,871
- 497
- 83
- Location
- Gray Court SC
Pull hoses off of cylinder just make sure your way under truck.
If still won't come down the cylinder is locked.
If still won't come down the cylinder is locked.
freecr
Member
- 45
- 1
- 8
- Location
- Rochester/MN
Did you figure it out?
- 1,505
- 1,171
- 113
- Location
- TN
Yes, it resolved.
- 3,871
- 497
- 83
- Location
- Gray Court SC
What was the problem
- 1,505
- 1,171
- 113
- Location
- TN
Cab was hung up on something
Cdtdiesel
New member
- 15
- 1
- 3
- Location
- Burbank ohio
What was the cab hung up on ? Mine will not come down
- 6,861
- 695
- 113
- Location
- Stratford/Connecticut
Does your hand pump get hard? It could be clogged restrictor
- 1,505
- 1,171
- 113
- Location
- TN
Sorry, I don't recall what it was hung up on. It has been too long.
GreyEnvy
New member
- 7
- 5
- 3
- Location
- North Mississippi
Mine started hanging up last week. The cab is hitting the cab support bar. I used a long pry-bar to nudge the support bar backwards out of the way.
I wonder if I have an airbag failure? I don't think it was this floppy before.
I wonder if I have an airbag failure? I don't think it was this floppy before.
- 672
- 1,683
- 93
- Location
- San Diego, CA
My support bar that holds the back of the cab flops towards the engine too close and goes over the ramp the seats it into place I'm not sure if something is out of adjustment or if they're supposed to be a strap that contains it but anyway I've used bungee cords wrapping around the tire rack and going to that
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Sent from my S62 Pro using Tapatalk
- 284
- 586
- 93
- Location
- Portland, OR
This sounds like the problem I had with mine, it was related to lowering the cab with the cab air leveling system engaged. I always raise and lower the cab with the air ride bags deflated and I haven't had the problem again.
- 672
- 1,683
- 93
- Location
- San Diego, CA
Good suggestion I hadn't thought of that.
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Sent from my S62 Pro using Tapatalk
Ronmar
Well-known member
- 3,812
- 7,403
- 113
- Location
- Port angeles wa
There are internal shocks in the air bags that should keep things mostly inline either inflated or deflated, and limit overall travel. Mine works fine inflated or deflated, so I would say you have a deeper problem, or they are not installed correctly. The shock is attached into its base flange by a single bolt and bushing. If that is loose it will allow the whole assembly to tilt. The top of the shock is attached by a cross pin. If that upper bushing/pin is trash, it will pivot at the top. If you raise the cab and move the arch, you should be able to see where it is pivoting(top or bottom of shock) if you get up there and pull up and down onthe arch you should feel only smooth shock response, and no free-play/slop/clunking…