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Solectrac E25 Tractor won't start/move checklist
Note
: Each step that you might jump to starts with a bold “
Okay
” to help you fi nd it.
1.
Okay
, sit on the seat of the tractor, to ensure the seat safety interlock is disengaged.
2.
Check the red 12v disconnect switch by your left foot and ensure it is engaged and can’t be removed.
Also check the parking brake lever by your right foot and ensure it is engaged to ensure any parking brake
interlock is disengaged.
3.
Check to make sure the hydraulic pump switch is off, as the pump may cause issues with starting.
4.
Turn the key from off to run. You should hear two clunk sounds from the relays/contactors closing and the
fans and tractor dashboard should turn on.
This is normal.
5.
If tractor dashboard doesn’t turn on, check the 12v battery voltage. Go to
step #13
6.
Okay
, tractor dashboard turns on, relays/contactors closed, & fans are running. Check the dashboard for
the charge level of the main battery, if the SOC bar graph on the LCD is at 0
%
,
charge your tractor.
7.
If the SOC bar graph on the LCD is above 0
%
, check the dashboard to see if there are any motor
controller or BMS Error codes, on the left section of the LCD is the BMS error codes, the right section of
the LCD is the motor controller codes. If both of the codes are NOT “0” (zero), look in Chapter 11
Troubleshooting of the operator manual to see what the error codes mean.
Contact Dealer/Solectrac
with the codes.
8.
If the code in both the BMS and the Motor Controller are “0” (zero), slowly move the FNR selector on the
left of the dashboard to choose forward or reverse state for the motor controller, if the indicator does not
show the direction changing, check the hand throttle lever to make sure it is all the way forward, and that
you are not stepping on the accelerator pedal while changing
the FNR selector
. If the throttle lever and
accelerator pedal are both disengaged and
the FNR selector
does not change,
check
the
main battery
disconnect. Go to
step #19
9.
Okay
, if the FNR indicator shows direction changing, release the parking brake down by your right foot,
turning it so it drops down, & slowly press accelerator pedal, if the tractor moves,
you should be good.
10.
If the tractor didn’t move, look at the motor RPM indicator on the dashboard to see if it changes when you
put your foot on the accelerator. If the RPM indicator doesn’t change, check ___. Go to
step #23
11.
If the RPM indicator changes, but the tractor doesn’t move, check the transmission levers to the left of
your seat, look at the outer (range) lever, it has L-M-N-H options. Push the lever forward or back into one
of the options (excluding the N), but be careful not to force it.
12.
If the
outer (range) lever
does not feel like it wants to shift, put your foot fi rmly on the brake, change
direction on the FNR switch, lightly tap the accelerator, wait for the motor RPMs to return to 0, and try to
move the lever into another gear. Go back to
step 9
to re-check movement.
13.
Okay
, tractor dashboard doesn’t turn on. Open the hood of the tractor, by using the large Allen key in the
toolbox on the back of the tractor, the key goes in the front of the tractor on the bottom right corner. Insert
the key and turn to unlatch the hood. Swing the hood up and the hood should stay upright.
14.
The 12v battery is bolted to the front of the main battery at the front of the tractor. Remove the access
cover on the top of the 12v battery by using a pair of 10 mm sockets/wrenches to remove the bolt and nut
on either side of the cover, making sure you don’t drop them!
15.
With the multi meter set to measure DC volts, connect the black lead of the multi meter to the negative
terminal of
the 12v
battery, and the red lead of the multi meter to the positive terminal of the battery. If the
voltage measured is below 12-13v,
the 12v
battery is likely drained
. Try charging the 12v battery or
replacing the 12v battery.
A.
Before you charge/replace the 12v battery, look at both connectors as they are bolted to the battery,
they should be tight and not allow the battery cables to move. If they are loose, using a
n 8
mm socket/
wrench tighten the connections. Re-check the connections, if they are still loose, use washers to make
a tighter connection or a shorter bolt to hold the connectors to the battery.
B.
W
hen you charge the 12v battery, using a
n
8
mm socket/wrench you should disconnect the negative
connection
of the tractor from
the 12v battery
to prevent any potential damage to the tractor
. If your
battery charger cables are too large to connect to the battery, you may need to remove the battery
from the battery holder, us
ing
a
10
mm socket/wrench
remove the 4 bolts holding the battery box onto
the main battery. Note: the battery can be heavy so support it when unbolting.
C.
Connect the battery charger cables (positive to the positive terminal on the battery, negative to the
negative terminal) and plug the battery charger in.
C
harging may take several hours.
D.
After the charger is fi nished, disconnect the battery from the charger, wait about 3-5 minutes, and test
the voltage of the battery with the multi meter set to measure DC volts, connect the black lead of the
multi meter to the negative terminal of your battery, and the red lead of the multi meter to the positive
terminal of the battery. If the voltage measured is below 12.5 volts, your battery is likely dead and
needs to be replaced.
E.
If the battery voltage stays above 12.5v, put the battery back in the battery box and bolt the box back
onto the main battery. Connect the battery wires back up to the appropriate terminals of the battery
,
replace the battery cover,
and go back to
step 1
to re-test
F.
If attempting to diagnose why the 12v battery is not charging,
be aware that
the
tractor when plugged
into the charging cord,
it
is slowly draining the 12v battery
. So if you leave the tractor plugged into the
charger over many days (3-4?), the 12v battery may be fully drained.
G.
Secondly, remember that the 12v battery is only charged when the tractor is operating unless you have
installed the "
Harness Auxiliary Battery Improved for Voltage Drop
" (part number
D10789900AB
) which
allows the 12v battery to be charged when the tractor is operating AND when the tractor is charging.
H.
Lastly, the even with the "
Harness Auxiliary Battery Improved for Voltage Drop
"
(part number
D10789900AB)
installed, once the charge cycle for the main battery is complete, the 12v battery
continues to supply power to other components without being charged. So, this can end up draining
the battery if you don't unplug the charging cord after charging is complete.
I.
Now we understand all that, let’s look to verify if the 12v battery actually charging. To do this we need
to ____
(Should we add checking the output of the DC/DC converter or is it contact Dealer/Solectrac?)
16.
If the battery is above 12-13v, check the 10A (Red) fuses labeled 20 - CONTROLLER and 10 - MOBILE
CHARGER. On the top of the main battery box, is a black plastic fuse box, r
emove the cover of the fuse
box and with the multi meter set to measure DC volts, connect the black lead of the multi meter to the
negative terminal of your battery,
&
the red lead of the multi meter to one of the two metal tabs of the fuse
to ensure that the voltage is above 12.5 volts repeat on the other one of the two metal tabs of the fuse.
17.
If the voltage measured between the two metal tabs of the fuse are different, pull the fuse and inspect it to
see if it's blown or damaged. Replace if blown
/damaged
.
18.
Next check the voltage along the 12v path by ____
(Should we add checking the voltage drop along the
wires up to and past the 12v disconnect or is it contact Dealer/Solectrac?).
19.
Okay
, the tractor dashboard turns on, there are no BMS or motor controller codes, but can’t switch the
FNR state of the motor controller. Check the
Manual Service Disconnect
(MSD).
20.
Open the hood of the tractor, by using the large Allen key in the toolbox on the back of the tractor, the key
goes in the front of the tractor on the bottom right corner. Insert the key and turn to unlatch the hood.
Swing the hood up and the hood should stay upright.
21.
Looking at the front of the tractor there is a large red switch (
Manual Service Disconnect
) that rotates from
0 (off) to 1 (on). Make sure the switch is set to on.
22.
If the switch was set to on, check the ____
(Not sure what would be next, but is there something not
dangerous we could add, or is it contact Dealer/Solectrac?)
23.
Okay
, the dashboard turns on, can switch the FNR state of the motor controller, the main battery is above
0
%
,
there are no BMS or motor controller codes, but the motor still doesn't turn. Check the ____
(Not sure
what would be next, but is there something not dangerous we could add, or is it contact Dealer/
Solectrac?)
To request changes, respond here -
https://www.facebook.com/groups/solectrac/posts/2325943297604742/
Additional Information
FUSES AS LABELED
FAILURE MODE WHEN FUSES REMOVED/ FAILED
With all of the
fuses with
question marks, there was no detected loss of functionality with those fuses pulled.
Some may be the 12V DC to DC converter or the cigarette lighter adapter.
•
What would the symptoms be for over temperature for motor or controller?
•
What other symptoms/conditions should we add?
10
HORN
10
PARKING
15
HAZARD PLOUGH
10
FUEL FEED
CLUSTER
20
CONTROLLER
5
GCU
10
MOBILE
CHARGER
10
FLASHER
10
BRAKE
15
LO BEAM
5
HI BEAM
10A - Horn
does not honk
10A - Rear Brake /
Parking Lights fail
10A - Turn
signals / Hazard
fail to turn on
EMPTY
10A - Dashboard
display off, but
Tractor moves
20A -FNR selector
& switches for
hydraulic fails
15A - ?
10A - ?
10A - Dashboard
display off, but
Tractor moves
10A - ?
10A - ?
10A - Headlights
fail to turn on
20A - Fan &
Controller fails to
power on
15A - FNR selector
& switches for
hydraulic fails
For future updates, Check list from Solectrac
(care of Robert Wallace of FB Group Solectrac Owners and Enthusiasts)
