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Gearcase
Maintenance Interval
The gearcase should be checked for lubrication after
each 30 hours of use.
Gearcase Lubrication
Remove the cutting attachment and the boss adapter.
Clean any dirt and debris from the area between the
boss adapter and the gearcase. Remove the grease plug
from the side of the gearcase.
While rotating the attaching shaft, inject lithium-base
bearing lube (P/N 211337) through the plug hole until
the gearcase is full. Reinstall the boss adapter and
grease plug.
Bearing Lube
(P/N 211337)
Gearcase
General Cleaning and Tightening
WARNING
POTENTIAL HAZARD
• When engine is running, cutting head is
rotating and other parts are moving.
WHAT CAN HAPPEN
• Contact with rotating cutting head or
other moving parts could cause serious
personal injury or death.
HOW TO AVOID THE HAZARD
• Always turn off your Trimmer/Brushcutter
before you clean or perform any mainte-
nance on it.
The MARUYAMA Trimmer/Brushcutter will provide
maximum performance for many, many hours if it is
maintained properly. Good maintenance includes
regular checking of all fasteners for correct tightness,
and cleaning the entire machine.
Grease Plug
Plug Hole
Attaching Shaft
Boss Adapter
— US-21 —
Storage
For long term storage of the Trimmer/Brushcutter:
1.
Empty the fuel tank into a suitable fuel storage
container.
2.
Pump the primer bulb on the carburetor until all
fuel is discharged through the clear fuel return
hose.
3.
Run the engine to remove any fuel that may
remain in the carburetor.
4.
Perform all regular maintenance procedures and
any needed repairs.
5.
Remove the spark plug and squirt a very small
amount of oil into the cylinder.
6.
Pull the starter grip once.
CAUTION
POTENTIAL HAZARD
• Oil may squirt out of the spark plug open-
ing when you pull the starter grip.
WHAT CAN HAPPEN
• Oil can cause eye injuries.
HOW TO AVOID THE HAZARD
• Protect your eyes and keep your face
away from the spark plug opening.
7.
Slowly pull the starter grip to bring the piston to
the top of the cylinder (TDC).
8.
Reinstall the spark plug.
9.
Store the Trimmer/Brushcutter in a dry place
away from excessive heat, sparks or open flame.
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