20
installation & preparation
PRE-START INSPECTION PROCEDURES
THERMAl RElIEF VAlVE
Before starting the unit, perform the following procedures:
1. Check the oil level in the pump and engine.
2. Inspect the water inlet strainer. Clean or replace if necessary. See
“Water Supply”, #2, pg 19.
3. Check all hose connections to ensure they are securely tightened. See
“Water Supply”, #3, pg. 19.
4. 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. 7.
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.
5. 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” pg. 8. 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.
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 relieve 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, therefore preventing premature failure of pump packings.
