Maintenance - RedMax CHT2250 Manual De Instrucciones

CHT2250

8. Maintenance

Maintenance, replacement, or repair of the emission control device and
systems may be performed by any non-road engine repair establishment or
individual.
■ MAINTENANCE CHART
fuel leaks, fuel spillage
fuel tank, air filter, fuel filter
idle adjusting screw
spark plug
cylinder fins, intake air cooling vent
muffler, spark arrester, cylinder exhaust port clean
throttle lever, ignition switch
cutting parts
gear case
screws/nuts/bolts
debris guard
• Make sure that the engine has
stopped and is cool before
performing any service to the
machine. Contact with moving
cutting head or hot muffler may
result in a personal injury.
■ AIR FILTER
MA1
• The air filter, if clogged, will reduce the
engine performance. Check and clean
the filter element in warm, soapy water
as required. Dry completely before
installing. If the element is broken or
shrunk, replace with a new one. (MA1)
(1) Air filter
■ FUEL FILTER
MA2
• When the engine runs short of fuel
supply, check the fuel cap and the fuel
filter for blockage. (MA2)
(1) Fuel filter
■ SPARK PLUG
• Starting failure and mis-firing are often
caused by a fouled spark plug. Clean
the spark plug and check that the plug
gap is in the correct range. For a
replacement plug, use the correct type
US-12
System/components
WARNING
Every
Procedure
Before hours
use after
✔
wipe out
✔
inspect/clean
see adjusting
✔
idling speed
clean and readjust
plug gap
clean
✔
check operation
replace if
✔
something's wrong
grease
✔
tighten/replace
✔
make sure to attach
MA3
.025 in
0.655mm
Every Every
25 50 100
hours hours
after after
✔
replace, if necessary
replace carburetor
if necessary
GAP : 0.6 ~ 0.7 mm
✔
replace, if necessary
✔
✔
✔
✔
not adjusting screws
specified by RedMax. (MA3)
• REPLACEMENT PLUG IS
CHAMPION RCJ6Y OR NGK
BPMR7A.
IMPORTANT
• Note that using any spark plug other
than those designated may result in the
engine failing to operate properly or in
the engine becoming overheated and
damaged.
• To install the spark plug, first turn the
plug until it is finger tight, then tighten it
a quarter turn more with a socket
wrench.
TIGHTENING TORQUE:
87~121 in-lbs
(9.8~13.7 N.m.)
■ MUFFLER
WARNING
• Inspect periodically, the muffler for
loose fasteners, any damage or
corrosion. If any sign of exhaust
leakage is found, stop using the
machine and have it repaired
immediately.
• Note that failing to do so may result
in the engine catching on fire.
Note