Mi-T-M DC-5005-WC4H6G Manual Del Operador página 19

Symptom
Engine will not start.
No discharge at nozzle
when trigger mechanism
is squeezed.
Low or fluctuating pres-
sure..
Water is leaking from
the "Thermal Relief
Valve".
Oil appears milky or
foamy.
Oil leaking from unit.
Detergent will not siphon
into Low Pressure De-
tergent mode. (Optional
Feature.)
Water flows back into
detergent container.
Water flows from the
nozzle when the trigger
gun is locked in the OFF
position.
Water is leaking at safety
relief.
CWC-GASOLINE Operator's Manual
TROUBLESHOOTING
Probable Cause
Various engine problems.
Unit components are frozen.
Inadequate water supply.
Kink in water inlet hose.
Kink in high pressure discharge
hose.
Water inlet screen obstructed.
Pump sucking air (prime eliminated). Tighten all water intake connections. Elimi-
Not in high pressure mode.
Obstructed or worn spray nozzle.
Damaged or obstructed valve assy.
on pump.
Pump packings worn.
Bypass valve not operating correctly.
Water temperature is too high.
Defective valve.
Water in oil.
DO NOT USE.
Detergent strainer is not completely
submerged in detergent solution.
Detergent strainer obstructed.
Detergent hose cut, obstructed or
kinked.
Detergent adjusting knob turned to
closed position.
Detergent nozzle not being used.
Nozzle assembly is plugged.
Too many high pressure hose exten-
sions attached to the water outlet.
Ball & Spring in Venturi stuck.
Ball & Spring in Venturi reversed,
missing or corroded.
Gun is malfunctioning.
Safety Relief/ Burst disk is ruptured
caused by an unloader malfunction.
Symptom
Refer to the Engine Manual accompanying
your unit.
Allow to thaw. If any part of the unit be-
comes 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.
Replace kinked high pressure hose.
Remove screen, clean or replace
nate leaks in intake line. Re-prime.
Insert high pressure nozzle.
Remove, clean or replace.
Remove, inspect, clean or replace.
Replace packings.
Repair or replace.
Do not allow unit to operate the bypass
mode with trigger gun closed) for more
than three minutes.
Replace.
Change pump oil. Fill to proper level.
Contact your Customer Service.
Check, submerge if necessary.
Inspect, clean or replace.
Inspect, clean or replace.
Open adjusting knob. Refer to "Cleaning
with Detergents".
Insert 6540° (BLACK) nozzle.
Clean or replace.
Use one extension maximum.
Remove, clean or replace.
Remove, clean or replace.
Repair or replace.
Replace safety Relief/ Burst disk. NEVER
run unit without safety Relief/ Burst disk.
Doing so can cause an explosion!
Detect and correct unloader problem.
19