US-15
GZ4000
U
S
Maintenance, replacement, or repair of
the emission control device and
systems may be performed by any
non-road engine repair establishment
or individual.
Before cleaning, inspecting or
repairing your unit, make sure that
engine has stopped and is cool.
Disconnect the spark plug to prevent
accidental starting.
■ MAINTENANCE AFTER EACH USE
1. Air filter
Dust on the cleaner surface can be
removed by tapping a corner of the
cleaner against a hard surface. To clean
dirt in the meshes, split the cleaner into
halves and brush in gasoline. When using
compressed air, blow from the inside.
(F27)
To assemble the cleaner halves, press
the rim until it clicks.
When installing the main filter, make sure
that the grooves on the filter edge are
correctly fit with the projections on the
cylinder cover.
2. Oiling port
Dismount the guide bar and check the
oiling port for clogging. (F28)
(1) Oiling port
3. Guide bar
When the guide bar is dismounted,
remove sawdust in the bar groove and the
oiling port. (F29)
Grease the nose sprocket from the
feeding port on the tip of the bar. (F30)
(1) Oiling port
(2) Grease port
(3) Sprocket
4. Others
Check for fuel leakage and loose
fastenings and damage to major parts,
especially handle joints and guide bar
mounting and muffler. If any defects are
found, make sure to have them repaired
before operating again.
■ PERIODICAL SERVICE POINTS
1. Air cooling system
Dust clogging around the cooling system
and the cylinder fins will cause
overheating of the engine. Periodically
check and clean the cooling system and
the cylinder fins with a brush after
removing the cylinder cover, the air
cleaner and the recoil case. When
installing the cylinder cover and the
cooling system, make sure that switch
wires and grommets are positioned
correctly in place. (F31)
(1) Recoil case
(2) Fan cover
(3) Fan
(4) Cylinder fins
(5) Cylinder cover
Be sure to block the air intake hole.
2. Spark arrester
The muffler is equipped with a spark
arrester to prevent red hot carbon from
flying out of the exhaust outlet.
Periodically check and clean as
necessary with a wire brush after
removing two muffler cover nuts and one
screw. (F32)
(1) Spark arrester
Never use a muffler if the spark arrester is
missing or defective.
3. Exhaust port
Remove the muffler, insert a screwdriver
into the vent, and wipe away any carbon
buildup after every 100 hours of use.
Wipe away any carbon buildup on the
muffler exhaust vent and the cylinder
exhaust port at the same time. (F33)
(1) Muffler exhaust vent
(2) Cylinder exhaust port
(36 pages)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comments to this Manuals