Makita HR4001C Technical Information

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Repair
[2] LUBRICATION
Apply Makita grease R. No.00 to the portions designated with black triangle to protect parts and product
from unusual abrasion.
80 Crank housing complete
83 O ring 18
About 20g into the Crank room
92 Gear housing complete About 22g into the Gear room
86 Crank shaft
54 Counter weight (2 pcs)
Active dynamic vibration absorber of HR4010C and HR4011C
Crank pin portion
90 Flat washer 10
Whole portion
89 Helical gear 38 Teeth portion
Surface that contacts Helical gear 38
Surface that contacts Torque limiter assembly99 Driving flange
Item No. Description Portion to lubricate
Teeth portion of Helical gear 61
Teeth portion of Straight bevel gear 7
--- Torque limiter assembly
Fig. 1B
Link lever
Pan head screw M4x10
Crank cap
Crank cap cover
Control plate
Crank lever
Connecting rod
Apply adhesive to the
threaded portion when
tightening this screw.
Armature
Pipe 16
Pipe holder
Pipe holder
Compression
spring 11
Compression
spring 11
Active dynamic vibration absorber
of HR4010C and HR4011C
Surface that contacts Pipe 16
Note:
For long tool life, at the same time
when Carbon brushes are replaced,
it is recommended to lubricate
Crank housing complete with
Makita grease R.No.00.
(See "[4] Maintenance Program".)
Torque limiter
assembly

Makita HR4001C Specifications

General

Cord length	4 m
Input power	1100 W
Output power	1200 W
Power source	AC
Impact rate	2750 bpm
Rated speed (max)	480 RPM
Impact energy (max)	6.8 J
Sound pressure level	92 dB
Drilling diameter in concrete (max)	40 mm

Weight and Dimensions

Depth	106 mm
Width	468 mm
Height	261 mm
Weight	6300 g