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P 11 /20 

R

epair

[3] DISASSEMBLY/ASSEMBLY

Fig. 29

8) Remove Torque limiter assembly from Gear housing complete by tapping the edge of Gear housing complete with
    plastic hammer.  If Torque limiter assembly remains on Crank housing complete, remove by tapping the edge of
    Crank housing complete. (Fig. 29)

Gear housing complete

Torque limiter assembly

Change plate

Crank housing complete,
viewed from the Gear
housing side

Crank housing complete,
viewed from the Gear housing side

Torque limiter assembly

Change plate

9) After removing Change plate from Torque limiter assembly, remove Ball bearing 6904LLU and Ball bearing 608DDW
    from Torque limiter assembly using Bearing extractor (No.1R269). (Fig. 30)
10) Then remove Cup washer, Conical compression spring 19-27 and Driving flange from Torque limiter. (Fig. 31)
      Important: Never try to disassemble Torque limiter because it cannot be reassembled once disassembled.

Fig. 31

Torque limiter
(Do not disassemble.)

Cup washer 8

Driving flange

Conical compression
spring 19-27

Crank housing complete

Crank pin
at the rear dead point

11) When Crank shaft still remains in Crank housing complete, remove by first rotating Crank shaft till the crank pin is
       placed at the rear dead point, then tapping Crank housing complete with plastic hammer. (Fig. 32)
12) The assembly of Crank shaft and Helical gear 38 can be disassembled using arbor press as illustrated in Fig. 33.

Assembly of
Crank shaft and
Helical gear 38

Fig. 30

Fig. 32

Fig. 33

Ball bearing 6904LLU Ball bearing 608DDW

Change plate

No.1R269

Crank shaft

Crank shaft

Crank shaft

Retaining
ring S-12

Retaining
ring S-12

Ball bearing 
6904LLU

Ball bearing
6904LLU

Helical gear 38

Bearing extractor

(No.1R269 )

Crank shaft

Bearing plate
(No.1R022)

Summary of Contents for HR4001C

Page 1: ...pc HR4001C HR4010C 6 3 13 9 5 9 13 0 Europe 4 0 13 1 Brazil Chile 2 0 6 6 Other countries 5 0 16 4 HR4011C Dimensions mm Width W Height H Length L Model No HR4001C HR4010C HR4011C 468 18 1 2 116 4 9 1...

Page 2: ...e for 22 Tool holder About 5g on the inside surface that contacts Impact bolt Outside surface that contacts Spacer and Chuck ring 25 Fluoride ring 25 on impact bolt Two elliptic holes that contact Too...

Page 3: ...limiter assembly 99 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...

Page 4: ...he other Ring spring 25 using No 1R003 and No 1R212 Chuck ring and Release cover can now be removed Now you will see a pair of Tool retainers assembled on Tool retainer Fig 3 4 Remove the two Tool ret...

Page 5: ...out the orange color of O ring 20 will be visible Fig 9 In this case replace Fluoride ring 25 together with O ring 20 and X ring 18 Do not replace the Fluoride ring alone Remove Crank housing cover fr...

Page 6: ...ed Impact bolt See Fig 13 Ring 17 Rubber ring 17 Slide sleeve Ring 33 Striker See Fig 11 Note 2 The installations are not exchangeable between Urethane washer 45 and Flat washer 45 when they are assem...

Page 7: ...cap and Crank housing complete can be removed in this step Link plate Link plate guide Link plate Link plate guide Tool holder side Fig 16 Crank cap cover Change lever Tapping screw 4x14 Tapping scre...

Page 8: ...illustrated in Fig 20 And pull off the Cylinder by turning the handle of the Extractor clockwise Use two Phillips screwdrivers as illustrated in Fig 21 if No 1R213 and No 1R350 are not available Fig...

Page 9: ...ing 32 as illustrated in Fig 23 Use arbor press to insert the Cylinder into Crank housing complete if No 1R213 and No 1R350 are not available 2 Do not forget to put Ring 33 on Cylinder 28 5 when locki...

Page 10: ...otor housing complete viewed from the Rear cover side 6 Separate Motor housing complete by removing four 5x25 Tapping screws then tapping the commutator end of Armature shaft with plastic hammer Then...

Page 11: ...ving flange from Torque limiter Fig 31 Important Never try to disassemble Torque limiter because it cannot be reassembled once disassembled Fig 31 Torque limiter Do not disassemble Cup washer 8 Drivin...

Page 12: ...the smaller diameter end faces the Driving flange side Cup washer 8 the side with a raised center faces the Ball bearing 608DDW side 2 When assembling Cup washer 8 to Straight bevel gear 7 of Torque...

Page 13: ...ted screwdriver Fig 40 4 As illustrated in Fig 41 Pipe holders can now be separated by turning Pipe holders while pushing strong toward each other 5 Now Active dynamic vibration absorber can be disass...

Page 14: ...crews Controller and Power supply cord can now be replaced Fig 44 3 See Fig 45 Slide lever complete Switch box and Slide switch can be removed from Handle by unscrewing one 4x14 Tapping screw Note Be...

Page 15: ...ping screws By unscrewing two 4x14 Tapping screws Controller and Power supply cord can now be replaced Fig 49 Slotted screwdriver Fig 48 ASSEMBLING ASSEMBLING Fig 47 Control plate Crank lever Embossed...

Page 16: ...Brush holder unit is not installed on Armature Following the steps described below assemble Brush holder unit to Motor housing Fig 51 1 Place Brush holder unit so that the connector to Controller on...

Page 17: ...ice life of the machine Fig 53 Fig 53 Striker Piston Impact bolt 1 1 Tool holder cap 24 25 26 32 38 24 25 26 32 38 O ring 20 Apply Makita grease R No 00 after mounting to Impact bolt Apply Makita grea...

Page 18: ...Two On Off Switches Brush holder unit Power supply cord Field Speed control dial Brush holder unit Power supply cord Field Slide switch for lock ON Main Switch Main Switch Color index of lead wires s...

Page 19: ...ng side Switch box viewed from the Handle cover side Lead wire black to Controller Lead wire white from Main switch to Controller Lead wire red to Main switch Lock on slide switch Handle Handle 1 In H...

Page 20: ...r housing be careful not to pinch at the circled portion in Fig 58 Fig 58 2 In Motor Housing Lead Wires of Power Supply Cord Lead wires of power supply cord Motor housing Controller Controller Be care...

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