Mi-T-M Corporation HS Serie Manuel De L'opérateur page 21

SYMPTOM
Engine will not start.
No discharge at nozzle
when trigger mecha-
nism is squeezed.
Low or fluctuating pres-
sure.
Pump oil appears milky
or foamy.
Oil leaking from unit.
Water is leaking at
safety relief valve.
Detergent will not
siphon.
Water flows back into
detergent container.
Water flows from the
nozzle when the trig-
ger gun is locked in the
OFF position.
Operator's Manual
TROUBLESHOOTING
PROBABLE CAUSE
Engine problems.
Unit components are
frozen.
Inadequate water supply.
Kink in water inlet hose.
Water inlet screen ob-
structed.
Pump sucking air. (Prime
eliminated)
Not in high pressure mode. Insert high pressure nozzle.
Obstructed or worn spray
nozzle.
Damaged or obstructed
valve assy. on pump.
Pump packings worn.
Unloader/bypass valve not
operating correctly.
Water in oil.
Worn seals or o-rings.
Unloader malfunction.
Pressure switch malfunc-
tion.
Safety Relief Valve is de-
fective.
Detergent strainer is not
completely submerged in
detergent solution
Detergent strainer ob-
structed.
Detergent hose cut, ob-
structed or kinked.
Nozzle assembly is
plugged.
Detergent adjusting knob
turned to closed position.
Ball & Spring in detergent
strainer is obstructed.
Trigger gun is malfunction-
ing.
REMEDY
Refer to the Engine Manual accompanying your unit.
Allow to thaw. If any part of the unit becomes frozen,
excessive pressure may build up in the unit which could
cause the unit to burst resulting in possible serious injury to
the operator or bystanders.
Ensure hose is 3/4" diameter and incoming water supply is
turned on.
Remove kink.
Remove screen, clean or replace.
Tighten all water intake connections.
Eliminate leaks in intake line.
Move adjustable grip on dual lance counterclockwise to
high pressure.
Remove, clean or replace.
Remove, inspect, clean or replace.
Replace packings.
Repair or replace.
Change pump oil. Fill to proper level.
Contact Service Department.
Detect and correct unloader problem.
Detect and correct pressure switch problem.
Replace safety relief valve. NEVER run unit without safety
relief valve. Doing so can cause an explosion!
Check, submerge if necessary.
Inspect, clean or replace.
Inspect, clean or replace.
Clean or replace.
Open adjusting knob. Refer to "Cleaning w/ Detergents".
Remove, clean or replace.
Repair or replace.
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