4.5
MAINTENANCE SCHEDULE
The following table summarizes the type and frequency of maintenance required. Follow the manufacturer’s instructions for
proper lubrication and detailed maintenance. For repairs, contact the nearest authorized service center.
TYPE OF MAINTENANCE
SERVICE FREQUENCY
Check and clean obstruction from air intake at recoil starter screen
Daily
Check and clean obstruction from heat exchanger*
Daily
Check fuel level in gas tank—add if required
Daily
Check engine oil level—add if required
Daily
Check that reservoir oil level is within one inch below filler cap—add if required
Daily
Check that hydraulic oil is clean
Daily
Wash air filter pre-cleaner
25 hrs.
Change engine oil after first 8 hrs. **
50 hrs.
Check battery electrolyte—add if necessary
50 hrs.
Check air cleaner filter—replace if necessary
100 hrs.
Check and clean obstructions from cooling fins and external surfaces
100 hrs.
Replace engine oil filter
100 hrs.
Check, clean, and replace spark plug
100 hrs.
Have cylinder head removed and cleaned (leaded fuel)
100 hrs.
Have cylinder head removed and cleaned (unleaded fuel)
200 hrs.
Replace reservoir filter and oil after first 50 hrs. ***
250 hrs.
Clean suction screen in reservoir
250 hrs.
Check coupling spider
250 hrs.
Grease wheel bearings
500 hrs.
Check ignition timing
500 hrs.
Check fuel filter in line
500 hrs.
Check valves and tappet clearance
500 hrs.
Lightly oil throttle cable
500 hrs.
* The hydraulic heat exchanger must always be kept clean and free of obstructions. Check it daily before operating and
frequently during use. If debris builds up on the screen during operation, remove debris as soon as it is safely possible.
CAUTION:
AN OBSTRUCTED HEAT EXCHANGER WILL CAUSE THE HYDRAULIC SYSTEM AND
ENGINE OIL TO OVERHEAT AND FAIL PREMATURELY.
** Change every 25 hours if engine is operated under heavy load or in high ambient temperatures.
*** Change more often under heavy duty, high temperature, or high altitude applications. When draining the oil, clean
filler/breather cap and replace if damaged
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