Product Manual B

Rev. 0213 EPT, Manual.doc
Copyright 2013 Vestil Manufacturing Corp. Page 26 of 51
Problem:
Possible cause(s): Action:
Unit will not raise; motor does not
run
Loose wire
Bad solenoid
Upper limit switch out of
adjustment
Blown fuse
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
raise, 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 raise, 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.
Unit will not raise; motor runs Lower solenoid stuck on 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. If the lower switch is not
stuck “on,” the pump could be
bad, consult factory.
Unit will not lower Loose wire; bad coil
Upper limit switch out of
adjustment
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 the unit does not lower,
remove the connector to the coil
and measure the coil resistance.
It should be around 39 ohms. If
it’s open, or shorted replace the
coil.
Loosen hydraulic line at pump to
relieve pressure build up. Re-
adjust limit switch so unit stops at
7 to 8 inches above the ground.
Unit keeps blowing fuses when
the raise button is pressed
Shorted solenoid for motor raise Remove the wire to the solenoid
coil on the pump motor.
Measure the resistance, it should
be around 19 ohms. If it is nearly
zero ohms replace the solenoid.