Hitachi DA-300E Manual Del Propietário página 47

Ⅴ．MAINTENANCE
1. Periodical check
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1) Clean the air cleaner element with soap and water and dry before reuse. (Fig. 9)
2) Scrape off the carbon from the spark plug gap. (Standard gap is 0.60 mm or 0.023 in.) (Fig.10)
3) Clean the cylinder exhaust port and muffler. Remove the chips or dust entered in the cylinder
cover or fan case cover. (Otherwise it may cause trouble such as overheating.)
4) Inspect carefully for any fuel or oil leaks.
5) Check all nuts, bolts, screws, etc. making sure they are tightened.
6) Since the clutch shoes will wear after a long period of use, it should be checked occasionally.
2. Lubrication
1) Lubricate gear case by pumping multi-purpose grease through grease fitting every 50 hours of
operation. (Fig. 11)
2) Engine speed governor is lubricated with # 30 weight oil (EP lithum). The capacity is 0.5 fl.oz.
(16ml) and should be checked every 50 hours of use at the level check screw. (Fig. 12) When
unscrewing the check screw, keep the screw side up.
3. GOVERNOR ADJUSTMENT
1) Frist with the engine off, loosen screw A (1).
Pull up governor outer lever (2) and push down governor spring lever (3), then at the same time
retighten the screw A (Fig. 12B)
NOTE: After above procedure, make sure the throttle (4) on the carburetor gets either of the
idle position or the full open position.
2) To adjust governor, loosen screws (6) which holds control lever assembly (5) to crankcase and
move the assembly left or right to obtain the maximum speed of 6500 rpm (Moving control lever
assembly to left gives higher rpm and moving to right, lower rpm) (Fig. 12C)
NOTE: Always adjust throttle wire end play before governor adjustment.
CAUTION: Do not adjust to run more than 6500 rpm.
(1) AIR CLEANER COVER
(2) PULL TO REMOVE AIR CLEANER
COVER
(3) AIR CLEANER ELEMENT
(4) 0.60 mm
.023 in
(5) REMOVE CARBON OR OIL
(6) GREASE FITTING
(7) LEVEL CHECK SCREW
Fig. 11
Fig. 12
Fig. 12B
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