Air Leak In The Manual Transmission

Topic 14874 | Page 1

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Paul W.'s Comment
member avatar

Hi, Has anyone expierenced an air leak in the manual transmission shifter? On a 10 speed there is that lever that you select to switch from low to high and visa versa. In my case it first started as a small leak but when I got to the shipper it seemed to have increased and I have to pull the lever up in order to keep it from leaking air from my tanks. Also when I was trying to back into the door, I of course had the lever down to back in low gear and I noticed that the clutch pedal was vibrating. I had to engage the clutch brake to stop the vibration. That along with the fact that when I switch the lever down I don't hear the clicking sound it always makes but just leaking air. I bobtailed around the yard some and my speed was 10 miles even though I had it in first gear, the lever was down and leaking air. I'm wondering if it's not engaging any of the low gears now and due to the air leak?

Any thoughts or knowledge on this? Thanks

Bobtail:

"Bobtailing" means you are driving a tractor without a trailer attached.

Shipper:

The customer who is shipping the freight. This is where the driver will pick up a load and then deliver it to the receiver or consignee.

Errol V.'s Comment
member avatar

The range selector is air operated. I've never had leakage problems, but I hear the air if the lever isn't completely up or down. Can you look to see if the lever isn't sticking on something, keeping it from closing all the way?k

G-Town's Comment
member avatar

Paul the splitter is air-actuated. You no longer have the capability to select the low range due to the leak. It's either the hose or the valve (where the lever) that is leaking. Contact On Road and your DM. Before trying to move a load you should have that fixed.

Dm:

Dispatcher, Fleet Manager, Driver Manager

The primary person a driver communicates with at his/her company. A dispatcher can play many roles, depending on the company's structure. Dispatchers may assign freight, file requests for home time, relay messages between the driver and management, inform customer service of any delays, change appointment times, and report information to the load planners.

HOS:

Hours Of Service

HOS refers to the logbook hours of service regulations.
Paul W.'s Comment
member avatar

At first I thought it was the lever wasn't going down all the way or something. But turns out the leak is actually coming from a valve or something like what G- Town mentioned. It's coming from underneath the cab so unfortunately I cannot get to it

The range selector is air operated. I've never had leakage problems, but I hear the air if the lever isn't completely up or down. Can you look to see if the lever isn't sticking on something, keeping it from closing all the way?k

Paul W.'s Comment
member avatar

Thanks guys for your input. Apparently between the bottom of the shifter and underneath the cab, the air line came loose. How that happened I have no idea

OOS:

When a violation by either a driver or company is confirmed, an out-of-service order removes either the driver or the vehicle from the roadway until the violation is corrected.

Truckin Along With Kearse's Comment
member avatar

This is the kinda stuff I love seeing here. Now filed into to my memory box for future use hahahha thanks guys

Kevin H.'s Comment
member avatar

So did they have to get under to fix it, or did they do it from inside? Did it require new parts or just tightening? I've got my roll of duct tape, I just have to know where to apply it should the same thing happen to me.

Paul W.'s Comment
member avatar

They did have to get under it at first to locate the source of the leak but then they plugged it from inside the cab. From under the the rubber boot at the bottom of the shifter.

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