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Makita HR4003C Instruction Manual page 9

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Lubrication
CAUTION:
• This servicing should be performed by Makita
Authorized Service Centers only.
• Do not perform lubrication just after the operation, wait
until the tool cools down. Otherwise skin burn may
result.
This tool requires no hourly or daily lubrication because it
has a grease-packed lubrication system. However, it is
necessary to replace grease and carbon brushes
periodically for tool's long life.
(For model HR4003C, HR5202C) Loosen the six screws
and remove the handle. (Fig. 22)
(For model HR4013C, HR5212C) Loosen the eight
screws. And remove the guard cover as shown in the
figure. And then remove the handle. (Fig. 23 & 24)
Remove the connector by pulling it. (Fig. 25)
Loosen the screws and remove the change lever.
Remove the crank cap cover. (Fig. 26)
Remove the control plate. (Fig. 27)
Loosen the six screws and remove the crank cap. Rest
the tool on the table with the bit end pointing upwards.
This will allow the old grease to collect inside the crank
housing. (Fig. 28)
Wipe out the old grease inside and replace with fresh
grease:
For model HR4003C, HR4013C: 30 g
For model HR5202C, HR5212C: 60 g
Use only Makita genuine hammer grease (optional
accessory). Filling with more than the specified amount
of grease can cause faulty hammering action or tool
failure. Fill only with the specified amount of grease.
(Fig. 29)
Reinstall all removed parts.
Attach the connector and reinstall the handle. (Fig. 30)
NOTE:
• Note that the different lengths of screws are used.
NOTICE
• Do not tighten the crank cap excessively. It is made of
resin and is subject to breakage.
• Be careful not to damage the connector or lead wires
especially when wiping out the old grease or installing
the handle.
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be
performed by Makita Authorized Service Centers, always
using Makita replacement parts.
OPTIONAL ACCESSORIES
CAUTION:
• These accessories or attachments are recommended
for use with your Makita tool specified in this manual.
The use of any other accessories or attachments might
present a risk of injury to persons. Only use accessory
or attachment for its stated purpose.
If you need any assistance for more details regarding
these accessories, ask your local Makita Service Center.
• SDS-MAX Carbide-tipped bits
• SDS-MAX bull point
• SDS-MAX cold chisel
• SDS-MAX scaling chisel
• SDS-MAX clay spade
• Hammer grease
• Bit grease
• Side handle
• Side grip
• Depth gauge
• Blow-out bulb
• Safety goggles
• Carrying case
• Dust extractor attachment
NOTE:
• Some items in the list may be included in the tool
package as standard accessories. They may differ from
country to country.
Noise
The typical A-weighted noise level determined according
to EN60745:
Model HR4003C, HR4013C
Sound pressure level (L
Sound power level (L
Uncertainty (K): 3 dB (A)
Model HR5202C
Sound pressure level (L
Sound power level (L
Uncertainty (K): 3 dB (A)
Model HR5212C
Sound pressure level (L
Sound power level (L
Uncertainty (K): 3 dB (A)
Wear ear protection
Vibration
The vibration total value (tri-axial vector sum) determined
according to EN60745:
Model HR4003C
Work mode: chiseling function with side handle
Vibration emission (a
Uncertainty (K): 1.5 m/s
Work mode: chiseling function with side grip
Vibration emission (a
Uncertainty (K): 1.5 m/s
Work mode: hammer drilling into concrete
Vibration emission (a
Uncertainty (K): 1.5 m/s
Model HR4013C
Work mode: chiseling function with side handle
Vibration emission (a
Uncertainty (K): 1.5 m/s
Work mode: chiseling function with side grip
Vibration emission (a
Uncertainty (K): 1.5 m/s
Work mode: hammer drilling into concrete
Vibration emission (a
Uncertainty (K): 1.5 m/s
Model HR5202C
Work mode: chiseling function with side handle
Vibration emission (a
Uncertainty (K): 1.5 m/s
Work mode: chiseling function with side grip
Vibration emission (a
Uncertainty (K): 1.5 m/s
ENG905-1
): 92 dB (A)
pA
): 103 dB (A)
WA
): 99 dB (A)
pA
): 110 dB (A)
WA
): 98 dB (A)
pA
): 109 dB (A)
WA
ENG900-1
2
): 9.0 m/s
h, CHeq
2
2
): 9.0 m/s
h, CHeq
2
2
): 10.0 m/s
h, HD
2
2
): 4.5 m/s
h, CHeq
2
2
): 4.5 m/s
h, CHeq
2
2
): 5.0 m/s
h, HD
2
2
): 10.5 m/s
h, CHeq
2
2
): 10.5 m/s
h, CHeq
2
9

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This manual is also suitable for:

Hr5202cHr5212cHr4013c