20
9. Maintenance
■ REFILLING TRIMMING LINE
1. For replacement line, use a diameter of .095
in(2.4mm). The spool is capable for a line upto
27ft(8 m)on the 4” head. Avoid using a larger line
as it may cut down the trimming performance.
For safety reasons, do not use metalreinforced
line.
2. Pinch the slotted area on the both sides of the
spool housing to unhook the bottom cap. (MA1)
3. Take out the spool and pull off the old line. Put
one end of new line through the spool holes and
pull it until the length is equal between each part
of the line. (MA2)
4. Wind up the line in the correct direction as
indicated on the spool. (MA3)
5. Hook each end of the line in the slot on the edge
of the spool, and then put the ends through the
eyelets on the housing. Make sure that the
spring and the washers are in place. (MA4)
6. While holding the spool against the housing, pull
the line ends to release them from the slot.
7. Line up the slot on the bottom cap with the hook
MA1
MA2
MA3
■ MAINTENANCE CHART
first first every every every
10 20 25 50 100
system/compornent procedure before hours hours hours hours hours note
use after after after after after
oil level check/add oil, if needed ✔
oil change oil ✔✔recheck before long-
term storage
fuel filter, air filter check/clean ✔✔replace if needed
fuel tank clean/fill the correct fuel ✔
fuel leaks, fuel spillage wipe out ✔
idle adjusting screw see ■adjusting idling ✔ replace, carburetor
speed(p.18) if needed
spark plug clean and readjust ✔ GAP: .025in(0.655mm)
plug gap replace if needed
the valve to rocker arm clearance check/clean ✔✔adjust, if necessary
cylinder fins, intake air cooling vent clean ✔
muffler, spark arrester, cylinder clean ✔
exhaust port, combustion chamber
throttle lever, ignition switch check operation ✔
cutting parts replace if something’s ✔
wrong
debris guard make sure to attach ✔
gear case grease ✔
screws/nuts/bolts tighten/replace ✔✔not adjusting screws
ENGINESHAFT
MA4
