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DAILY
„ Thoroughly remove dirt and oil from the engine and
control area.
„ Clean or replace the air cleaner elements as necessary.
Check and retighten all fasteners as necessary.
„ Check the spring box and bellows for oil leaks. Repair
or replace as needed.
EVERY 50 HOURS
„ Clean the fuel shut-off valve.
„ Remove and clean the spark plug, then adjust the spark
gap to 0.024~0.028 inch (0.6~0.7 mm).
EVERY 150 HOURS
„ Remove the element from the air cleaner cover - upper
part (Figure 16) and wash it with gasoline or kerosene.
Then dip it in engine oil (SAE10W-30) and squeeze
lightly. Reinstall the element.
Figure 16. Air Cleaner (Upper)
„ Remove the element from the air cleaner - engine
(Figure 17) and wash it with gasoline or kerosene.
Reinstall the element.
Figure 17. Air Cleaner (Engine)
MT77HFR RAMMER • OPERATION MANUAL — REV. #1 (07/08/20) — PAGE 19
EVERY 200 HOURS
„ Remove the oil drain plug on foot housing (Figure 18) and
drain the oil. Refill with approximately 0.8 qt. (0.75 liter)
of 10W-30 SE, SF or higher grade motor oil. Check oil
gauge on the protective sleeve from the right side if oil
is at specified level.
Figure 18. Oil Replacement
EVERY 2 YEARS
„ Replace the fuel line every 2 years even if there is no
visible damage.
MAINTENANCE
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