18 GT23 User Manual
Engine will not start.
Flow selector switch not in the
Make sure the flow selector switch is in
OFF position.
the OFF position when starting.
Battery not connected.
Attach battery cables, check wires.
Weak battery.
Test battery, charge or replace.
No fuel.
Add Fuel.
Fuel filter plugged.
Replace fuel filter.
Defective spark plugs.
Remove plugs, check gap, clean or
replace.
Fluid blowing out of fluid
reservoir vent.
Hydraulic tank overfilled.
Correct the fluid level.
Pump suction leak.
Check suction connections. Tighten if
necessary.
Hydraulic tool won't operate.
Flow selector switch not switched
Check that the flow selector switch
ON.
is set to 8 or 12 gpm.
Incorrect hose connection to
Make sure the tool hose circuit goes
tool.
from left (pressure) fitting to tool
and back to the right fitting
(return). Fluid always flows from the
male to female fittings.
Quick disconnect fittings
Detach from hose, connect set
defective.
together and check for free flow.
Hydraulic fluid level low.
Check for correct fluid level. Fill
using the recommended fluid.
Pump coupling defective.
With the engine not running.
Check the coupling between the pump
and engine that it is engaged and is
not damaged. Caution: Keep hands
clear of rotating objects.
Relief valve stuck open.
Adjust or replace valve.
Suction hose kinked.
Make sure suction hose from fluid
reservoir to pump inlet has a smooth
curve.
Solenoid not working.
Check solenoid operation and electrical
connections.
Tool is defective.
Refer to tool manual.
PROBLEM CAUSE REMEDY
TROUBLESHOOTING
