20
Maintenance Schedule
Following the maintenance schedule is essential to keep the pressure washer in good operating condition.
Table 1 provides a summary of routine inspection procedures and simple maintenance tasks that can be
performed by someone with mechanical competence using commonly available hand tools. Alternatively, an
authorised Westinghouse service dealer can carry out this work for a fee.
Table 2 lists the more complicated maintenance tasks that are best performed by a qualified small engine
mechanic using specialised tools. It is recommended to engage an authorised Westinghouse service dealer to
carry out this work.
Table 1: Basic Maintenance Schedule - Owner Performed
Maintenance
Item
Each Use
After First
20 Hours of Use
After 50 Hours of
Use or Every Year*
After 100 Hours of
Use or Every Year*
Engine Oil
Check / Add
Change
–
Change
Air Filter Elements
Check / Clean
–
Clean ^
Replace ^
Fuel Strainer
–
–
Clean
–
Fuel Sediment Cup
–
–
Clean
–
Spark Plug
–
–
Clean / Adjust
Replace
Spark Arrester
Check
–
Clean
–
Exterior Surfaces
Check / Clean
–
–
–
Water Inlet Screen
Check / Clean
–
–
Replace
High Pressure
Hose
Check
–
–
–
Spray Gun
Check
–
–
–
Spray Nozzles
Check / Clean
–
–
–
Detergent System
Check / Clean
–
–
–
Pressure Pump
Check / Drain
–
–
–
*
Whichever occurs first.
^ Service more frequently if operating in dusty conditions.
Table 2: Advanced Maintenance Schedule – Authorised Westinghouse Service Dealer Performed
Maintenance
Item
After 300 Hours
of Use
After 500 Hours
of Use
Specification
Engine Idle Speed
Check / Adjust
–
Full Load: 3,600 ± 50 rpm
No Load: 3,750 ± 50 rpm
Valve Clearance
(Cold Engine)
Check / Adjust
–
Intake Valve 0.08 - 0.12 mm
Exhaust Valve 0.13 - 0.17 mm
Combustion
Chamber
–
Remove Carbon
Build-Up
-
