Maintenance schedule
Operating hour
Whole unit
All fixing screws and nuts
Gear case
Drive axle
Cutter blade
Power unit
Troubleshooting
Problem
The engine does not start.
The engine stops soon after its start.
The maximum speed is limited.
The cutting tool does not rotate.
Stop the motor immediately!
The unit vibrates abnormally.
Stop the motor immediately!
The cutting tool does not stop.
Stop the motor immediately!
The nylon cutting cord does not feed.
The nylon cutting cord is not cut off at the
correct length.
Technical Data
Model
Dimensions (L x W x H)
Net weight (Not including protector and blade)
Cutting blade diameter
Cutting diameter with a nylon cutting head
Gear ratio
Visually inspect for damaged
parts
Tighten
Supply grease
Supply grease
Visually inspect for damage
Refer to the instruction manual of the power unit
Refer to the instruction manual of the power unit.
The cutting tool is not tightened securely.
A twig is caught between the cutting tool and
the protector.
The drive system does not work properly.
The cutting tool is bent, worn or broken.
The cutting tool is not tightened securely.
One end of nylon cutting cord has been
broken and the nylon cutting head got
unbalanced.
The cutting blade is not fitted on the guide of
the receive washer.
The drive system does not work properly.
The power unit does not work properly.
The cord is used up or tangled in the spool.
The cord cutter on the protector is damaged
or missing.
The cord extends past the protector.
mm (inch)
kg (lbs)
mm (inch)
mm (inch)
Before
Daily (10h)
Operation
Probable caus
EM400MP
876 x 374 x 211
(34-1/2" x 14-3/4" x 8-5/16")
1.0 (2.2)
230 (9")
420 (16-1/2")
12
30h
If required
Solution
Tighten the cutting tool securely.
Remove the foreign matter.
Ask Makita authorized service center to
inspect and repair it.
Replace the cutting tool with new one.
Tighten the cutting tool securely.
Feed the nylon cutting cord with tapping the
nylon cutting head on the ground.
Install the cutting blade properly.
Ask Makita authorized service center to
inspect and repair it.
Refer to the instruction manual of the power
unit.
Rewind the cord.
Ask Makita authorized service center to
replace the cord cutter.
Rewind the cord.
EM401MP
907 x 310 x 220
(35-3/4" x 12-1/4" x 8-5/8")
1.0 (2.2)
230 (9")
300 (12")
14/19
Corresponding
page
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