Makita HR4013C Technical Information

Repair
P 14/ 19
(1) Remove Gear housing from Crank housing according to [3]-3 of the previous pages.
(2) Tap Gear housing as drawn in Fig. 35 with a plastic hammer. Torque limiter assembly is removed.
(3) Remove Retaining spring S-8 from the shaft of Spiral bevel gear 7 with 1R291. After removing Flat washer 8, separate
Ball bearing 608DDW with 1R269. (Fig. 36) Shoulder washer 8 is removed.
(4) Use two 1R258 to receive guide plate portion of Torque limiter complete, press down the shaft of Spiral bevel gear 7.
(Fig. 37)
Spiral bevel gear 7, Key 4 (2 pcs.), Ball bearing 6002LLU and Torque limiter complete are removed. (Fig. 38)
Note: Do not disassemble Torque limiter complete. Once it is disassembled, it is impossible reassemble them again.
Gear housing
Plastic hammer
Torque limiter assembly
Retaining ring S-8
Ball bearing 608DDW
Ball bearing 6002LLU
[3] DISASSEMBLY/ASSEMBLY
[3]-4. Torque limiter assembly
Fig. 35 Fig. 36
Fig. 37 Fig. 38
Fig. 39
Shoulder washer 8
Torque limiter
complete
Flat washer 8
Spiral bevel gear 7 with two keys 4
Assemble by reversing the disassembly procedure.
When Shoulder washer 8 is pressfit to Spiral bevel gear 7 in Torque limiter
complete, place 1R027 to the round center portion of Shoulder washer 8 to
press it down. (Fig. 39)
Spiral bevel gear 7
Round center portion
of Shoulder washer 8
Torque limiter complete
Ball bearing 6002LLU
Key 4 (2 pcs.)
1R027
Arbor press
DISASSEMBLING
ASSEMBLING
1R258
Receive guide plate portion
of Torque limiter complete
with two 1R258.
Shaft of Spiral bevel gear 7

Makita HR4013C Specifications

General

Chuck type	SDS Max
Product color	Black, Blue
Adjustable speed	Yes
Cord length	4 m
Input power	1100 W
Power source	AC
AC input voltage	110-240 V
Impact rate	2900 bpm
Rated speed (max)	500 RPM
Impact energy (max)	8.3 J
Sound pressure level	92 dB
Drilling diameter in steel (max)	- mm
Drilling diameter in concrete (max)	40 mm

Weight and Dimensions

Depth	479 mm
Width	112 mm
Height	263 mm
Weight	6800 g