FarmerDean
Member
Was using loader the other day. I stopped to do something and when I put it in gear again it wouldn't move forward or back. I can hear some relays click in the panel by the door.
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Michigan (Volvo) L90 wont move
- Thread starter FarmerDean
- Start date
funwithfuel
Senior Member
Check trans oil in lower box. It's common to lose oil and not know it.
FarmerDean
Member
What type of oil is in there?
FarmerDean
Member
Well it was low. I added quite a bit but it didn't change anything. Does it get air or something in the system? Anything else to check?
funwithfuel
Senior Member
Sorry, should be 15w40 . Should be a dipstick on the side of the transmission case. Or a check plug beside the prop shaft.
sfrs4
Senior Member
Have you only lost drive? everything else ok?
FarmerDean
Member
It runs fine and hydraulics work but won't move forward or backward in any gear.
funwithfuel
Senior Member
I'm attaching troubleshooting for the electrical side of things.
funwithfuel
Senior Member
A little more
funwithfuel
Senior Member
funwithfuel
Senior Member
The easiest thing to do is place the APS in manual or service. Then watch your display as you select gears. You should see F1, F2 etc then do the same in reverse. R1 R2 etc.
On the shift solenoid cover there is a map indicating which solenoids should be energized when a gear is selected.
sfrs4
Senior Member
Check to see if s1 is getting power on the gear selector valve, it isn't 12345 top to bottom though i think its 4,1,3,5,2 top to bottom, it should be stamped into the block though, if s1 has power there is a drain duct in or near the bottom solenoid valve in the block, make sure that isn't blocked.
sfrs4
Senior Member
what serial number/ year is it? Aps was an option on the L90's, the L90B's onward was standard
Last edited:
FarmerDean
Member
L-90V60857
How old is it?
After checking some of things from above I realized the APS has been bypassed.
sfrs4
Senior Member
so it's a 1993 machine
and from factory it had a HT131 trans part number 30846 s/n 11501
would be worth checking to see if it's still original trans
and from factory it had a HT131 trans part number 30846 s/n 11501
would be worth checking to see if it's still original trans