RedMax EXZ2450S-PH User Manual
US-23
EXZ2450S-PH
U
S
9. Maintenance
■ MAINTENANCE CHART
Maintenance, replacement, or repair of the emission control device and systems may be performed by any
non-road engine repair establishment or individual.
non-road engine repair establishment or individual.
every
every
every
25
50
100
system/compornent
procedure
before
hours
hours
hours
note
use
after
after
after
fuel leaks, fuel spillage
wipe out
✔
fuel tank, air filter, fuel filter
inspect/clean
✔
✔
replace, if necessary
see
■ADJUSTING
replace carburetor
idle adjusting screw
✔
IDLING SPEED (p.16)
if necessary
clean and readjust
GAP: .025in(0.6~0.7mm)
spark plug
✔
plug gap
replace, if necessary
cylinder fins, intake air cooling vent
clean
✔
muffler, spark arrester, cylinder exhaust port
clean
✔
throttle lever, ignition switch
check operation
✔
replace if
BC-EX2, LRT-EX,
cutting parts
✔
something's wrong
HE-EX2
debris guard
make sure to attach
✔
BC-EX2, HE-EX2
gear case
grease
✔
screws/nuts/bolts
tighten/replace
✔
✔
not adjusting screws
oiling port
clean
✔
PS-EX only
guide bar
clean
✔
PS-EX only
sprocket
inspect/replace
✔
PS-EX only
saw chain
inspect/sharp
✔
PS-EX only
replace if
sweeper unit
✔
RMS-EX only
something's wrong
ENGINE
SHAFT
• 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.
performing any service to the
machine. Contact with moving
cutting head or hot muffler may
result in a personal injury.
■ AIR FILTER
• The air filter, if clogged, will reduce the
• The air filter, if clogged, will reduce the
engine performance. Check and clean
the filter element. If the element is
broken or clogged, replace with a new
one. (MA1)
the filter element. If the element is
broken or clogged, replace with a new
one. (MA1)
(1) air filter
■ FUEL FILTER
• When the engine runs short of fuel
• When the engine runs short of fuel
supply, check the fuel cap and the fuel
filter for blockage. (MA2)
filter for blockage. (MA2)
(1) fuel filter
WARNING
■ SPARK PLUG
• Starting failure and mis-firing are often
• 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
specified by RedMax. (MA3)
the spark plug and check that the plug
gap is in the correct range. For a
replacement plug, use the correct type
specified by RedMax. (MA3)
• REPLACEMENT PLUG IS A NGK
CMR7H.
• 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.
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.
a quarter turn more with a socket
wrench.
TIGHTENING TORQUE:
87~104 in-lbs
(9.8~11.8 N.m.)
IMPORTANT
(1)
MA1
(1)
MA2
.025 in
0.655mm
0.655mm
MA3
CUTTING UNIT