Troubleshooting - Makita LM004J Instruction Manual

Removing or installing the mower
blade
WARNING:
The blade coasts for a few sec-
onds after releasing the switch. Do not start any
operation until the blade comes to a complete
stop.
WARNING:
Always remove the battery car-
tridges when removing or installing the blade.
Failure to remove the battery cartridges may
cause a serious injury.
WARNING:
Always wear gloves when han-
dling the blade.
Removing the mower blade
1. Put the mower on its side so that the mowing
height adjusting lever comes to the upper side.
2.
To lock the blade, insert the pin into the hole on
the mower body as far as it will go.
3. Turn the bolt counterclockwise with box wrench 17.
► Fig.47: 1. Mower blade 2. Pin 3. Box wrench
4. Remove the bolt, and then mower blade.
► Fig.48: 1. Blade support 2. Mower blade 3. Bolt
4. Protrusion
NOTICE:
When installing the mower blade, make
sure that the protrusions on the blade support fit
in the holes in the mower blade.

TROUBLESHOOTING

Before asking for repairs, conduct your own inspection first. If you find a problem that is not explained in the manual,
do not attempt to disassemble the machine. Instead, ask Makita Authorized Service Centers, always using Makita
replacement parts for repairs.
State of abnormality
Mower does not start.
Motor stops running after a little use.
Motor does not reach maximum
RPM.
Mower blade does not rotate:
stop the mower immediately!
Abnormal vibration:
stop the mower immediately!
Probable cause (malfunction)
Battery cartridge is not installed.
Battery problem (under voltage)
Battery's charge level is low.
Cutting height is too low.
Cut grass is clogged in the mower.
Battery cartridge is installed improperly.
Battery power is dropping.
The drive system does not work
correctly.
Foreign object such as a branch is
jammed near the blade.
The drive system does not work
correctly.
Blade is imbalanced, excessively or
unevenly worn.
21 ENGLISH
Installing the mower blade
WARNING:
Install the mower blade carefully.
It has a top/bottom facing.
WARNING:
Tighten the bolt clockwise firmly
to secure the blade.
WARNING:
Make sure that the mower blade
and all the fixing parts are installed correctly and
tightened securely.
WARNING:
When you replace the blades,
always follow the instructions provided in this
manual.
NOTICE:
After installing the mower blades,
remove the pin from the mower body.
To install the mower blades, perform the removal proce-
dure in reverse.
Remedy
Install charged battery cartridge.
Recharge the battery cartridge. If recharging is not
effective, replace battery cartridge.
Recharge the battery cartridge. If recharging is not
effective, replace battery cartridge.
Increase the cutting height.
Remove the clogged grass from the mower.
Install the battery cartridge as described in this
manual.
Recharge the battery cartridge. If recharging is not
effective, replace battery cartridge.
Ask your local authorized service center for repair.
Remove the foreign object.
Ask your local authorized service center for repair.
Replace the blade.