17
4. Follow the incoming water requirements listed below:
a. Water pressure must be a minimum of 20 pounds per square
Inch (PSI) and a maximum of 125 PSI. (A typical outdoor faucet will
generally supply this PSI if turned completely “ON”.)
b. Incoming GPM must be approximately one gallon more than the
outgoing GPM stated on the pressure washer nameplate. (You can
check GPM by timing how long it takes to fill a 5 gallon container.)
c. Incoming water temperature must not exceed 125°F. Excessive
pump damage may result if the water temperature exceeds this
acceptable level.
5. Never allow the unit to operate without the incoming water line
attached and the water supply is completely turned on.
WARNING
THE TRIGGER GUN SHOULD ALWAYS BE LOCKED IN THE OFF
POSITION WHEN NOT IN USE!
installation & preparation
UNLOADER
WATER INLET STRAINER
The unloader has been preset at the factory.
13
Operator's Manual
13
INSTALLATION & PREPARATION
4. Follow the incoming water requirements listed below:
a. Water pressure must be a minimum of 20 pounds per square inch (PSI)
and a maximum of 125 PSI. (A typical outdoor faucet will generally
supply this PSI if turned completely "ON".)
b. Incoming GPM must be approximately one gallon more than the outgoing
GPM stated on the pressure washer nameplate. (You can check GPM
by timing how long it takes to fill a 5 gallon container.)
c. Incoming water temperature must not exceed 125°F. Excessive pump
damage may result if the water temperature exceeds this acceptable
level.
5. Never allow the unit to operate without the incoming water line attached and
the water supply is completely turned on.
UNLOADER:
Standard Models:
The unloader has been preset at the factory.
THERMAL RELIEF VALVE:
To ensure the water temperature does not exceed acceptable levels, never
allow the pressure washer to operate in the bypass mode (with the unit
running and the trigger closed) for more than three minutes.
A thermal relief valve has been added to this unit to protect the pump. This
valve will open and release water if the water temperature in the pump has
exceeded 140° F. This will allow fresh, cool water to enter the system,
therefore preventing premature failure of pump packings.
PRE-START INSPECTION PROCEDURES:
Before starting the unit, perform the following procedures:
1. Inspect the electrical cords for cuts. If a cut is found, DO NOT TOUCH OR
USE CORD! Replace cord before starting unit.
2. Check the oil level in the pump.
3. Inspect the water inlet strainer. Clean or replace if necessary. See “Water
Supply”, #2.
4. Check all hose connections to ensure they are securely tightened.
5. Inspect for system water leaks, oil leaks and fuel leaks. If a fuel leak is
found, DO NOT START UNIT! See “Risk of Explosion or Fire”, pg. 5. Be
sure that all damaged parts are replaced and that the mechanical problems
are corrected prior to operation of the unit. If you require service, contact
Customer Service.
6. Inspect high pressure hoses for kinking, cuts and leaks. If a cut or leak
is found, DO NOT USE HOSE! Replace hose before starting unit. See
“Risk of Injection or Severe Cutting Injury”, pg. 6. Be sure that all damaged
parts are replaced and that the mechanical problems are corrected prior to
operation of the unit. If you require service, contact Customer Service.
END OF PREPARATION INSTRUCTIONS
WATER INLET STRAINER
THERMAL RELIEF VALVE
To ensure the water temperature does not exceed acceptable levels,
never allow the pressure washer to operate in the bypass mode (with the
unit running and the trigger closed) for more than three minutes.
A “thermal relief valve” has been added to this unit to protect the pump.
It may begin to open and release water if the water temperature in the
pump has exceeded 140° F. This will allow fresh, cool water to enter the
system.
