Prochem LEGEND GT, Operating Instructions Manual

Page: 51 / 137

49
Maintenance
PROBLEM CAUSE SOLUTION
Starter turns over engine,
but will not start
Engine is malfunctioning
Refer to Kohler Engine Operation and Maintenance
Manual.
Engine stops running-
While doing normal
cleaning, the engine stops
running
Engine is out of gasoline Add gasoline to the fuel tank.
Waste tank is full Empty waste tank.
Main circuit breaker on the
control panel has been tripped. After inspecting the unit to determine the cause of
the tripped circuit breaker, press the reset button.
Engine coolant temperature has
exceeded 240°F, triggering the
high temperature switch to shut
the unit down.
Determine the cause of the overheating before
restarting the unit. Refer to the Kohler Engine
Operation and Maintenance Manual.
Defective fuel pump. Replace fuel pump.
Defective float switch inside the
waste tank. Check switch for proper operation. Replace as
necessary.
Oil pressure gauge on engine
has shut down, due to insufficient
oil pressure. Refer to the Kohler Engine Operation and Mainte-
nance Manual. DO NOT restart the engine until the
cause is determined and corrected.
No ignition in the engine or
engine is malfunctioning. Refer to the Kohler Engine Operation and Mainte-
nance Manual.
Excessive heating
Flow restriction caused by hard
water scaling. Descale unit, repair or replace damaged plumbing
components as necessary. Install water softener.
Not enough water flow. Check jet size of tool.
Heat exchanger leaks
NOTE: The heat
exchanger will produce
water condensation
discharge at times
during normal operation.
DO NOT confuse this
with a leak.
Engine/vacuum exhaust heat
exchangers are damaged from
frozen water. Inspect heat exchangers for leaks. Visually inspect
for damage. Pressure check after removing from
the unit. (Maximum test pressure 1200 PSI).
Loss of temperature
The heat output of the unit
is LESS than normal.
Temperature relief valve on water
box is stuck open. Clean temperature relief valve and test. Replace, if
necessary.
Engine RPM is low. Reset engine RPM.
Defective temperature gauge. Test gauge and sensor. Replace failed component.
Temperature balance orifice
missing
Replace orifice
Automatic waste pump is
malfunctioning or not
operating normally
NOTE: When replacing
either the pump or float
switch on internal (in
tank) pumpout, use new
electrical connectors
and heat shrink. Inspect
connection for watertight
seal.
Defective waste pump float
switch.
Replace float switch.
Broken diaphragm. Replace diaphragm.
Weak battery.
Charge or replace battery if needed.Check charging
station.
Pump-out circuit breaker on
control panel has been tripped. After inspecting waste pump to determine the cause
of the tripped circuit breaker, press the reset button.
86313050 LEGEND GT