Unloader; Thermal Relief Valve; Pre-Start Inspection Procedures - a&i products HPW-1500E Manuel De L'opérateur

INSTALLATION & PREPARATION

UNLOADER:

Standard Models:
The unloader has been preset at the factory.
Steam Option Models:
The unloader has an adjustment knob which has a minimum/maximum setting.
Move the unloader clockwise to the maximum setting for Cold/Hot water
operation. Move counterclockwise to minimum setting for Steam operation.

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, pg 12.
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.
Operator's Manual
END OF PREPARATION INSTRUCTIONS
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