Accessory Checklist; Glossary Of Terms - Yamaha PW3028A Service Manual

ACCESSORY CHECKLIST

SPRAY WAND:
 Determine where the leakage or failure occurs.
 Pressurize accessory to the rated pressure and cycle the trigger lever. If wand leaks while not activating the
trigger lever, replace wand. Check O-rings and replace as needed.
SPRAY WANDS/LANCES:
 Determine where the leakage or failure occurs.
 Insert nozzles and spray to rated pressure. If a new nozzle gets stuck in the coupler/fitting replace lance
assembly.
HIGH PRESSURE HOSE:
 Determine where the leakage or failure occurs.
 Check O-rings and connections.
NOZZLES:
Spray tip size is a very important factor of proper pressure washer performance. Using a tip that is sized too small
will allow over pressurization of the pump and components. You must know your output GPM and your desired
output PSI to properly select a spray tip size.
 Quick-Connect Nozzles - Spray tips are available in various spray angles/degrees; 0, 15, 25, and 40.
 Turbo Nozzles – These increase cleaning efficiency as much as 200% compared to a 25 degree flat fan nozzle.
The 0 degree rotation creates a cleaning and tearing action.
 Soap Blaster – The nozzle can be easily adjusted for long range or short range cleaning.
NOZZLE MAINTENANCE: (ALL PRESSURE WASHERS)
Excessive pump pressure , a pulsing sensation felt while squeezing the trigger, may be the result of a clogged or
dirty nozzle. Check the nozzle using the following procedures.
 Turn off the pressure washer and shut off the water supply. Pull trigger to release water pressure.
 Remove the nozzle from the spray lance.
 Using a straightened paper clip or nozzle cleaning tool, free any foreign materials clogging or restricting the
nozzle.
 Flush any debris out of nozzle.

GLOSSARY OF TERMS

GPM
Gallons Per Minute
HP
High Pressure
LP
Low Pressure
NP
Nozzle Pressure
PSI
Pounds Per Square Inch
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