Filter
Top Products
DAILY CHECK-UP AND MAINTENANCE
cover
r
cleaner case
cleaner
cover
I
Sponge element
Fig.
12
Fig.
13
0.6
mm
-
0.7
mm
(0.024"
-
0.028")
1.
2.
3.
4.
5.
6.
7.
a.
9.
10.
11.
Fig.
14
I
Fig.
15
Before operation, pay particular attention
to
the tightness of
the
nylon cutting head. Re-tighten
the
nylon
cutting head
if
necessary (every
8
hours or daily).
Check for clogged cooling air passage and cylinder
fins.
Clean them
if
necessary (every
8
hours or daily).
Clean the air cleaner every
8
hours or daily,
using
the following procedure:
i).
Remove the air cleaner cover. Clean the sponge element and remove any excessive
dust
or
dirt
adhering to the cleaner
(Fig.
12 and
13).
A
clogged air cleaner may make
it
difficult
or
impossible
to
start the engine or to increase the engine rotational speed
ii).
Re-install the sponge element around the
ribs
of
the air cleaner case.
Check the spark
plug
every
8
hours
or
daily.
The gap between the two electrodes
of
the
spark
plug
should be
0.6
to
0.7
mm
(0.024"
to
0.028").
If
the gap
is
too
wide or too narrow, adjust
it.
If
the spark
plug
is
clogged
with
carbon or fouled, clean
it
thoroughly or replace
it
(Fig.
14).
Apply
grease (SHELL
ALVANIA
No.
3
or equivalent)
to
the gear case through the grease hole every
30
hours
(Fig.
15).
FOR
RBC25A
ONLY
Apply
grease (SHELL
ALVANIA
No.
2
or equivalent)
to
the flexible shaft every
50
hours.
i).
Pull
the gear case from the drive shaft after removing bolts.
ii).
Pull
the flexible shaft out of the drive shaft housing.
Apply
grease to the drive shaft.
Clean the muffler exhaust port every
50
hours
or
monthly.
Check the fuel filter.
If
clogged, replace
it
with
a new one every
50
hours or monthly.
Replace the fuel lines every
200
hours or yearly.
Overhaul the engine every 200 hours or yearly.
Replace the packing and gaskets
with
new ones every time the engine
is
reassembled.
9