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SYMPTOM CAUSE SOLUTION
Enginewon't 1. Enginethrottleisin"OFF" Position. 1. Slide throttle to "Run" position.
start 2. Choke lever has not bean placed to 2. Slide choke lever to choke position.
choke,
3. Pressure buildup after initial use. 3. Depress trigger gun.
Won't Draw 1. Nozzle not in chemical draw position. 1. Push nozzle forward at end of wand.
Chemical 2. Chemical screen is obstructed. 2. Check chemical screen; clean if obstructed.
3. Chemical screen not working. 3. Make sure chemical screen is submerged in
chemical/water.
4. Chemical injector orifice obstructed 4. Check and clean.
or stuck.
1. Water supply restricted. 1.
Pump running
normally but
pressure does
not achieve
rated values
Fluctuating
Pressure
2. Nozzle is in low PSI position.
3. Nozzle incorrect or worn.
4. Pump sucking air.
5. Nozzle blocked.
1. Pump sucking air.
2,
3.
4.
5.
Check water supply and filter screen for.
blockage. Check hoses for blockage, kinks,
leaks, etc.
2. Pull nozzle at end of wand back to the high pressure
position.
3. Check and replace.
4. Check that hoses and ftttings are airtight.
5. Clean nozzle.
1.
2.
Check that hoses and fittings are airtight. Purge air
from garden hose.
Clean. Check filter frequently.
Check and replace.
Check hose for kinks.
Check flow available to pump. Check for
excessive heat, 145o F or above.
Clean inlet and discharge valve assemblies.
Replace if damaged.
Garden hose inlet strainer clogged.
Worn Seals or Packing. 3.
Inadequate water supply. 4.
Foaled or dirty inlet or discharge 5.
valves.
Leaky discharge hose. 6.
Nozzle clogged, partially obstructed. 1.
Nozzle worn. 2.
Valves wom, dirty or stuck. 3.
Worn piston pecking. 4.
1.
2.
3.
4.
High humidity. 1.
Piston packing and oil seal worn. 2.
6.
Pressure drops 1. Check connection. Replace if cracked or
after period of punctured.
normal use 2. Clean or replace.
3. Check and replace.
4. Check and replace.
Pump noisy 1. Water too hot. Reduce temperature below 63° C or 145° F.
2. Pump sucking air. Check that hoses and fittings are airtight.
3. Valves dirty or worn. Check, clean or replace.
4. Wom bearings. Check and replace if necessary.
Presence of 1. Change Oil.
water in oil (oil 2. Check and replace oil seals.
milky); Water
dripping from
pump.
Water dripping 1. Fittings Loose. 1. Tighten.
from pump 2. O-rings of piston guide or retainer 2. Check and replace.
worn. 3. Check and replace.
3. Piston packing worn.
Oil Dripping 1. Oil seal worn 1. Check and replace
2. Loosedrain plug or wom drain plug 2. Tightendralnplugorrepisceo-dng.Donotovertorque.
o-ring.
15
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