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13
ENGINE MAINTENANCE
See the engine owner’s manual for instructions on how to
properly maintain the engine.
KEEP OUT OF REACH OF CHILDREN. DON'T
POLLUTE. CONSERVE RESOURCES. RETURN
USED OIL TO COLLECTION CENTERS.
PUMP MAINTENANCE
For longest lasting service, follow the instructions given in
the check list (Figure 12).
IMPORTANT: Use 0.55 liter (18.6 ounces) of CAT Pump
6107 multi-viscosity oil. Oil alternatives include Mobil
DTE16, Texaco Rondo 1660-HD150, Amoco Rykon-68,
Shell Tellus T-68, and Exxon Univis-68.
Check Oil Level
1. Place pressure washer on a level surface.
2. While pump and oil is cold, observe oil level visible in
pump’s oil sight gauge.
3. Oil level should be visible and just below red dot. If
necessary, slowly add recommended oil through
pump’s oil filler opening until oil level just touches
bottom of red dot. DO NOT fill above red dot!
Oil Change Procedure
1. Place pressure washer on an outside level surface.
2. Start and run pressure washer for at least 5 minutes.
3. Turn off pressure washer and disconnect spark plug
wire from spark plug.
4. Place suitable container under oil drain hole.
5. Remove pump’s oil filler cap and o-ring (Items 32 and
33 on page 18).
6. Remove oil drain plug (Items 48 and 49 on page 18)
and let oil drain out completely.
7. Replace oil drain plug and tighten securely (50 in-lbs
max. torque).
8. Use a funnel to add recommended amount and type of
pump oil.
9. Replace domed oil filler cap and o-ring. Tighten finger-
tight.
10. Reconnect spark plug wire to spark plug.
11. Take used oil to an oil recycling center.
Maintenance
Follow the daily, hourly or calendar intervals, whichever occurs first.
* If other than CAT Pump Model 6107 oil is used, change cycle should be every 300 hours.
** Each system’s maintenance cycle will be exclusive. If system performance decreases, check immediately. If no wear at 1500 hours,
check again at 2000 hours and each 500 hours until wear is observed. Valves typically require changing every other seal change.
Duty cycle, temperature, quality of pumped liquid and inlet feed conditions all affect the life of pump wear parts and service cycle.
** Remember to service the unloader at each seal servicing and check all system accessories and connections before resuming
operation. Contact your local service center if questions arise.
Maintenance Item:
Daily
50 hours
500 hours
1,500 hours
3,000 hours
Clean Inlet Water Filter
X
Check Oil Level/Quantity
X
Check for Oil Leaks
X
Check for Water Leaks
X
Break-in Oil Change
X
*Routine Oil Change
X
**Seal Change
X
Valve Change
X
Check Accessories
X
Figure 12 — Pump Preventative Maintenance Check List
• Used motor oil has been shown to cause skin cancer in
certain laboratory animals.
• Thoroughly wash exposed areas with soap and water.
Avoid prolonged or repeated skin contact with used
motor oil.
CAUTION