Vestil SL-xxx-AA - Manual (Page 17)

17
Maintenance and repair
T
ROUBLESHOOTING
G
UIDE
-- ______
Warning: Before performing any task, always block drive wheel off of the ground.
Consult the factory for problems at time of installation, or for any problems not addressed below.
Problem: Possible cause(s): Action:
Unit will not charge
Charger malfunction
Bad batteries Verify output voltage on charger,
will only get a reading when
connected to batteries; should be
approximately 28 volts.
Load test batteries
Unit will not raise; motor does not
run
Loose wire
Bad solenoid
Upper limit switch out of
adjustment
Blown fuse
Batteries discharged
Verify 24 volts at coil when
raise is pushed, if no
voltage; trace wiring
back to till her head
looking for voltage on
each side of the
connectors until the bad
connection is found.
If voltage is present at the solenoid
and the unit does not rise, remove
the two wires to the coil and
measure the coil resistance. It
should be around 19 ohms. If it’s
open, or shorted replace the
solenoid.
Bypass upper limit switch and see if
the unit raises…DO NOT TAKE IT
ALL THE WAY UP… If it does rise,
verify the limit switch is normally
closed and will open when
activated. If the limit switch is ok,
try to adjust the switch
accordingly so that the units raise
height is approximately 7 to 8”
Check fuses above motor controller
Re-charge batteries
Unit will not raise; motor runs Lower solenoid stuck on
No hydraulic oil Check to see if the lowering switch is
stuck on. If it is, remove the tiller
head via 3 screws on bottom and
replace switch, or tap on switch to
see if it can be freed up.
Re-fill hydraulic oil
Unit will not lower
Loose wire; bad coil
Verify 24 volts at coil when lower is
pushed, if no voltage, trace wiring
back to tiller head looking for
voltage on each side of the
connectors until the bad
connection is found.
If voltage is present at the coil and