Mccormick mtx140 no reverse

[Richardp77]

Hi I've got a customers mtx140 drives forward fine but no reverse, I've replaced the reverse solenoid and still nothing, the green reverse symbol illuminates on the dash so im assuming the shuttle lever is alright, any ideas please??
Thanks Richard

 

[agrimax]

Can you swap the wires over between the f and r solenoids to see if it will still go forward with the shuttle in reverse position?
(Also assume you know it won't reverse if the range lever is in 4th?)

 

[Richardp77]

Yes I know about no reverse in 4th range thanks, I did try swapping the wires over before I changed the solenoid and nothing happened, haven't tried since I changed the solenoid though

 

[njneer]

Must be a switch or sensor to detect when it’s 4 th range .
Perhaps it’s faulty and it thinks it’s in 4th even though it isn’t .

 

[Teddy99]

It could be the switch for no reverse is stuck down , like it would be when in range 4. Or maybe faulty .

 

[sc4545]

Sounds like the pack is burnt out. The neutral light will flash if you put it in reverse in 4th range.

 

[Richardp77]

When you put it in 4th range the reverse symbol in green on the dash stays illuminated!! only when the shuttle is in reverse though!

 

[sc4545]

is the n light flashing aswell?

 

[Richardp77]

Hi all, just at the McCormick again, swapped the solenoid wires over and it will drive forwards with the shuttle lever in reverse position, disconnected the switch for the fourth range no reverse and still nothing, bridged the wires in the plug also and it shows the neutral symbol flashing as expected, am I to assume that it is the reverse pack burnt out?
Thanks Richard

 

[sc4545]

did you check for pressure?

 

[Richardp77]

No, haven't managed to locate a pressure gauge yet, what sort of pressure should it be? I assume that you test for the pressure on the port by the solenoids?

 

[sc4545]

ye it's on the pressure test port is on that block. you should have between 280-310psi I think from memory

 

[Richardp77]

ye it's on the pressure test port is on that block. you should have between 280-310psi I think from memory

ye it's on the pressure test port is on that block. you should have between 280-310psi I think from memory

Afternoon mate
Finally got around to pressure testing the McCormick, it's got 290 psi on the rev

 

[Richardp77]

Afternoon mate
Finally got around to pressure testing the McCormick, it's got 290 psi on the reverse
Port, so I'm assuming that it's definitely the reverse pack
Thanks Richard

 

[sc4545]

Yep its most likely the reverse pack