Loading ...
Loading ...
Loading ...
SYMPTOM
Engine won't
start
Won't Draw
Chemical
Pump running
normally but
pressure does
not achieve
rated values
Fluctuating
Pressure
Pressure drops
after period of
normal use
Pump noisy
Presence of
water in oil (oil
milky).
Water dripping
from pump
CAUSE
1. Engine throttle is in "OFF" Position.
2. Choke lever has not been placed to
choke.
3. Pressure buildupafter initialuse.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
6.
1,
2.
3.
4.
1.
2. Pump suckingair.
3. Valves dirtyor worn.
4. Worn bearings.
1.
2.
1.
2.
3,
SOLUTION
1. Slidethrottle to "Rabbit" position,
2. Slide choke lever to choke position.
3. Depresstrigger gun.
Place nozzlsto low pressure_
Check chemicalscreen;clean if obstructed.
Make sure chemicalscreen is submerged in
chemical/water.
Check and clean.
Nozzlenot in chemical draw position. 1.
Chemical screen is obstructed. 2.
Chemical screen not working. 3.
Chemical injector orifice obstructed 4.
or stuck.
Chemical injectorclosed.
Water supply restricted. 1.
Nozzle is in low PSIpos_lan, 2.
Nozzle incorrector worn. 3.
Pump suckingair. 4.
Nozzle blocked. 5.
Pump sucking air. 1.
Garden hose inletstrainerclogged. 2.
Worn Seals or Packing, 3.
Inadequate water supply. 4.
Fouled or dirty inlet or discharge 5.
valves.
Leaky discharge hose. 6.
Nozzle clogged, partially obstructed. 1.
Nozzle wom. 2.
Pump Valves worn, dirty or stuck. 3.
Worn pump piston packing. 4.
Water too hot. 1.
2.
3.
4.
High humidity. 1.
Piston packing and oil seal worn. 2.
Thermal relief functioning normal. 1.
Fittings Loose.
O-rings of piston guide or retainer 2.
worn. 3.
Piston packing worn. 4.
Oil sealworn 1.
Loosedrain plugor worn drain plug 2.
o-dng.
5. Open chemical injectorby turning adjustment
knob.
Check water supply and filterscreen for.
blockage. Check hoses for blockage, kinks,
leaks, etc.
Pull nozzleat end of wand back to the high pressure
position.
Check and replace.
Check that hoses and fittings ere air-tight.
Clean nozzle.
Check that hosesand fittings are airtight. Purge air
from garden hose.
Clean. Check filterfrequently.
Check end replace.
Check hose for kinks.
Check flow availableto pump. Check for
excessiveheat, 145o F or above,
Clean inlet and dischargevalve assemblies,
Replace if damaged.
Use nozzle cleaningkit to clear obstruction.(See
Nozzle Maintenanceunder Service Adjustment.)
Clean or replace.
Check and replace.
Check and replace.
Reduce temperaturebelow 63° C or 145° F.
Check that hoses and fittingsareair tight.
Check, clean or replace.
Check and replace if necessary.
Change Oil.
Check and replace oil seals.
Protecting pump, if not using pressure washer for
a long periodof time, shutoffengine.
Tighten.
Check and replace.
Check and replace.
4.
Oil Dripping 1. Check and replace
2. Tightendrainplug orreplaceO-ring.Donotovertorque.
15
Loading ...
Loading ...
Loading ...