Prochem LEGEND GT Operating Instructions Manual page 38

MAINTENANCE
PROBLEM
Chemical flow meter indicates
flow with the tool valve closed
Solution pump does not engage
Engine will not start
The engine does not turn over
Starter turns over engine, but
will not start
4-13
CAUSE
External leak in chemical piping
Outlet check valve is full of debris
or damaged, not allowing it to close
properly
Chemical pump diaphragm is
ruptured
Internal leak in chemical valve
causing continual flow through
prime tube returning to container.
Solution pump circuit breaker has
been tripped
Defective electrical connection in
the console wiring or defective
switch.
Solution pump has not been
activated
Defective solution pump clutch.
NOTE: The clutch may be manually
engaged by inserting two 1/4-20 x
1/2 bolts. Line up the holes on the
clutch and insert the bolts. To
disengage the pump, remove the
bolts.
Loose or broken solution pump
belts.
Main circuit breaker on the control
panel has been tripped.
Loose or corroded battery.
Dead battery.
Defective ignition switch.
Defective starter motor.
Vacuum pump seized.
Waste tank is full.
Defective fuel pump.
Loose or broken wires leading to
waste tank float switch.
Defective float switch in the waste
tank.
Oil pressure switch (located on
engine), fuel shut-off solenoid
(located on engine).
86313050 LEGEND GT 09/12/08
SOLUTION
Tighten fittings. Re-apply thread sealant
where required. If any fittings are
damaged, replace.
Close the chemical valve on the instrument
panel. If the flow meter does not indicate
flow, remove debris or replace check valve,
if necessary.
Close the chemical valve on the instrument
panel. If the flow meter still indicates flow,
replace the chemical pump diaphragm.
Tighten valve packing nut (see "General
Service Adjustments" section in this
manual). Replace valve, if necessary.
Check the solution pump circuit breaker on
the control panel. Press the circuit breaker
reset button.
Examine switch, electrical connections, and
wiring. Repair any defective connections. If
there is power going to the switch but not
going out, replace the defective switch.
Turn solution pump switch to on.
If there is power in the switch, but not
power at the clutch, replace the defective
wire. If there is power at the clutch, replace
the defective switch.
Tighten or replace belts.
After inspecting the unit to determine the
cause of the tripped circuit breaker, press
the reset button.
Clean, tighten, or replace the battery
terminals.
Recharge or replace battery.
Test ignition switch for power going into the
switch. If there is power going in but NO
power going out, replace the switch.
Test the starter motor. If necessary replace.
Refer to Gardner Denver Service & Repair
Manual.
Empty the waste tank.
Replace the fuel pump.
Repair or replace any broken electrical
connections.
Check switch for proper operation, replace
as necessary.
Test these components. If any are
defective, replace. Consult the Kohler
Engine Operation and Maintenance Manual.