Makita HR4500C Instruction Manual page 8

clean and free to slip in the holders. Both carbon brushes
should be replaced at the same time. Use only identical
carbon brushes.
Use a screwdriver to remove the brush holder cover.
1
003226
Use a screwdriver to remove the brush holder caps. Take
out the worn carbon brushes, insert the new ones and
secure the brush holder caps.
1
2
003232
Lubrication
CAUTION:
This servicing should be performed by Makita
•
Authorized or Factory Service Centers only.
This tool requires no hourly or daily lubrication because it
has a grease-packed lubrication system. It should be
relubricated after every 6 months of operation. Send the
complete tool to Makita Authorized or Factory Service
Center for this lubrication service.
Run the tool for several minutes to warm it up. Switch off
and unplug the tool.
Loosen the six screws and remove the handle. Note that
the top screws are different from other screws.
1
003237
Disconnect the connector by pulling it.
1. Screwdriver
2. Brush holder
cover
2
1. Screwdriver
2. Brush holder cap
1. Screws
2
3
003583
Remove the crank cap using a hex wrench. Rest the tool
on the table with the bit end pointing upwards. This will
allow the old grease to collect inside the crank housing.
003243
Wipe out the old grease inside and replace with a fresh
grease (60 g). Use only Makita genuine hammer grease
(optional accessory). Filling with more than the specified
amount of grease (approx. 60 g) can cause faulty
hammering action or tool failure. Fill only with the
specified amount of grease.
1
003247
Reinstall the crank cap and tighten with the hex wrench.
Connect the connector and reinstall the handle.
003250
CAUTION:
Do not tighten the crank cap excessively. It is made
•
of resin and is subject to breakage.
8
1. Black
2. Connector
3. White
1
1. Hex wrench
1
2. Crank cap
2
1. Hammer grease
1. Connector
2. Black
3. White
1 2
3