Remove dirt and dust from engine and control area. Clean air cleaner as necessary.
Check and retighten all fasteners as necessary.
Check spring box and bellows for oil leaks. Repair as needed.
Clean air cleaner cover. Adjust spark plug gap to 0.02-0.03 inch (0.6-0.7mm). This unit has
electronic ignition which requires no adjustments.
Remove fuel filter cap and clean. Clean every part of unit and retighten bolts and nuts as
necessary.
Drain oil reservoir on foot housing. Refill with approx. 520cc of #10W-30 motor oil for
MT-55/MT-55L, 750cc for MT-65H and 800cc for MT-72FW. Oil should be midway in sight
glass. Break in oil should be changed after first 50 hours. (Fig. 10 )
Remove element from pre-cleaner at the top of crank case and clean it with cleaning oil
(kerosene).
Take off `Bolt, Cover' of the crankcase upper part and take `Element' off `AIR CLENER'
(Fig.11, Fig12). Wet the bottom element (gray) with 7-9cc and let upper element (yellow) be
familiar with oil (MT-55/55L/65H).
MT-72FW is the top element (yellow) with 2 - 5cc and bottom element (gray) with 13 - 15cc of
engine oil SAE10W-30 squeeze out the oil before installing them. (Fig. 13) Air cleaner of the
engine side will hardly be contaminated, If it is, however, after cleaning the element with
kerosene, dip it in mixed oil consisting of 3 parts of gasoline and I part of engine oil. Them
tightly squeeze outer primary element (sponge) and shake off well the inner secondary
element before installing them. (Fig. 14, Fig. 15)
Rammer should be stored in such position as it is placed on level, after engine and machine
have been cooled down. Be sure to secure the rammer as necessary to avoid falling down. If
the rammer has to be laid down inevitably, tighten fuel tank cap and engine oil plug securely
and wait until engine and machine are cooled down. After laying it down, make sure that
there is no leak of fuel or oil. (If fuel leaks, drain the tank)
Long-term storage
:
Drain fuel from fuel tank, fuel line and carburetor. Remove spark plug
and pour a few drops of motor oil into cylinder. Crank engine 3 or 4 times so that oil reaches
all internal parts.
Clean exterior with a cloth soaked in clean oil store unit covered with plastic sheet in a
moisture free and dust free location out of direct sunlight.
Daily service
Fifty hours service
Three-hundred hours service
Air cleaner cleaning (Periodical service)
Storage
CAUTION:
Flammable liquid. Stop engine and do not smoke or allow work in
immediate area when refueling. Fire or explosion could result
from flames or sparks.
Moving part Shutdown engine before performing service or main-
tenance. Contact with moving parts can cause serious injury.
High temperature. Allow machine and engine to cool before per
forming service or maintenance. Contact with hot components can
cause serious burns.
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11. Service and Storage
14
11-1.
11-2.
11-3.
11-4.
11-5.
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