Welder Dave
Senior Member
Unfortunately Dieselguy2011 hasn't been on the forum since 2011. Someone else might know about the relays though. It would be good to know.
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Need some advice! (Champion grader)
- Thread starter soltesz
- Start date
Blue-Fox
Well-Known Member
Bummer Dave! I’ll find them I just fell on the ice and destroyed my (good) right shoulder and luck would have it my 740 went on the rag and only has even numbered gears now
Welder Dave
Senior Member
Can you see any codes on the trans. display? The Sierra Park 730A website has some manuals on it that may help. I don't know if there's a common solenoid or relay just for the odd numbered gears. Do you only have even odd numbered gears in reverse too? It would be good to know what causes these issues and the fixes because it could happen to my 730A and I'd be lost. That's why this forum is so good especially for common machines with problems.
Silveroddo
Senior Member
Not sure if any of this will do you any good but its the supplemental transmission electrical trouble shooting guide for the 8400 transmission. Solenoids in question look to be on page 4
Silveroddo
Senior Member
Says its applicable for SN 24260 and up
Welder Dave
Senior Member
Going by the links above, solenoid A is common for all odd numbered gears and solenoid B for all even numbered gears.
Silveroddo
Senior Member
Good eye Dave, looks like Solenoid A (1) could be the likely culprit. Should be a code of 2.6 for an open circuit or 3.6 for a short circuit.
Welder Dave
Senior Member
Hopefully the display is readable. Mine is barely readable but I can see something on the display.