Mi-T-M HVS Serie Manual Del Operador página 21

SYMPTOM
Engine will not start.
No discharge at nozzle when
trigger mechanism is squeezed.
Low or fluctuating pressure.
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 trigger 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 obstructed.
Pump sucking air. (Prime eliminated)
Eliminate leaks in intake line.
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 malfunction.
Safety Relief Valve is defective.
Detergent strainer is not completely
submerged in detergent solution.
Detergent strainer obstructed.
Detergent hose cut, obstructed or
kinked.
Nozzle assembly is plugged.
Detergent adjusting knob turned to
closed position.
Ball & Spring in detergent strainer is
obstructed.
Trigger gun is malfunctioning.
REMEDY
Refer to the Engine Manual accompany-
ing 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 in-
coming water supply is turned on.
Remove kink.
Remove screen, clean or replace.
Tighten all water intake connections.
Eliminate leaks in intake line.
Insert high pressure nozzle.
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.
Change pump oil. Fill to proper level.
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 "Clean-
ing w/ Detergents".
Remove, clean or replace.
Repair or replace.
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