Maintenance Schedule

Your Delco® pressure washer has been produced
with the highest quality materials and craftsmanship,
as the owner you have certain responsibilities for
the correct care of the equipment. Attention to
regular preventative maintenance procedures will
assist in preserving the performance of your
equipment.
Contact your local Delco® service provider for
maintenance. A small investment in preventative
maintenance will add many hours to the life of your
pressure washer. Perform maintenance more often
under severe conditions. Do not spray high-
pressure water onto the machine. Not all
maintenance items apply to all machines.
MAINTENANCE SCHEDULE**
Engine Oil
Inspect
Daily
Change
After first 10 hours then every 50 hours especially in high ambient temperatures
Filter
Every 100 hours
Air Cleaner
Inspect
Every 25 hours
Clean
Every 3 months
Diesel Engine Coolant
Check daily (maximum 50% antifreeze)
Battery Level
Check monthly 12V DC Burner Systems: Replace battery every 2 years
Engine Fuel Filter
500 hours or 6 months
Spark Plug Maintenance
500 hours or 6 months
Clean Fuel Tank(s)
Annually
Replace Fuel Lines
Annually
Pump Oil
Inspect
Daily
Change
After first 25 hours, then every 3 months or 150 hours
Axial pumps come filled with synthetic oil, which does not require changing
Replace Burner Fuel Filter Every 6 months (More often if fuel quality is poor)
Remove Burner Soot
Annually
Burner Adjustment/Cleaning
Annually
De-scale Coil
Annually (More often if required)
Replace Spray Nozzle
Every 6 months
Replace Quick Connects
Annually (More often if required)
Clean Water Screen/Filter
Weekly
Clean Float/Supply Tank
Every 6 months
Replace HP Hose
Annually (More often if required)
Belts
Tighten
Every 6 months
Inspect/Replace
Annually
Trailer Tires/Bearings
Monthly (Check tires for condition, tighten lug nuts, grease & check bearings)
MAINTENANCE INFORMATION
DESCRIPTION OIL TYPE CAPACITY
Gas Engine SAE 10W 30 motor oil ** .63 to 3 qt.
Diesel Engine SAE 15W 40 OR ISO 100 ** 1.7- 3.3 qt.
Pump, Cat SAE 15W 40 OR ISO 100 11 – 42 oz.
Pump, Comet SAE 15W 40 OR ISO 100 11 – 42 oz.
Pump, General SAE 15W 40 OR ISO 100 11 – 42 oz.
** Check the engine manufacturer’s service guide for additional maintenance items and specific high ambient
temperature oil selection.
California Prop 65 Warning
Detectable amounts of chemicals known to the State of California to cause cancer, birth defects or other reproductive harm
may be found in pressure washing equipment and accessories. California Health and Safety Code 25249.5
DELCO® MAINTENANCE INFORMATION
FNA/DELCO MAINTENANCE SCHEDULE