SPARE PARTS LIST

PAGE 1

MODEL NO. HP2071

ITEM PART NO. DESCRIPTION
192664-5 285839-4 324247-5 213314-0 233921-3 345224-4 211206-7 223141-7 233920-5 921923-8 345280-4 417630-4 134943-5 266053-1 153621-8 213122-9 417805-5 211014-6 153622-6 211014-6 ********** 216001-0 256251-5 421810-6 153620-0 418083-0 417802-1 263002-9 256251-5 232143-2 345225-2 417804-7 345223-6 268092-7 262087-2 210005-4 240065-2 517464-6 681636-0 211021-9 421494-0 418269-6 266004-4 633573-4 183657-3 631534-8 850578-1 819063-3 191962-4 ********** 686038-5 650212-1 418273-5 265999-8 687052-4 265995-6 645200-1 682559-5 KEYLESS DRILL CHUCK BEARING RETAINER SPINDLE OIL SEAL 19 CONICAL COMPRESSION SPRING CUP WASHER 15 BALL BEARING 6202LLB CAM A RING SPRING 11 HEX. BOLT M8X120 HEX. WASHER GRIP BASE GRIP 36 ASS'Y INC. 10-12 TAPPING SCREW 4X35 GEAR HOUSING COMPLETE O RING 12 CHANGE LEVER B BALL BEARING 606 GEAR COMPLETE BALL BEARING 606 ****************************** STEEL BALL 3.5 PIN 4 SEAL RING GEAR HOUSING COVER COMPLETE CHANGE LEVER A LEVER CASE RUBBER PIN 4 PIN 4 LEAF SPRING LOCK PLATE RACK 12 CHANGE PLATE B PIN 4 RING 8 BALL BEARING 608DDW FAN 52 ARMATURE ASS'Y 220-240V INC. 35-37,39,40 INSULATION WASHER BALL BEARING 607LLB RUBBER RING 19 BAFFLE PLATE TAPPING SCREW 4X70 FIELD 220-240V MOTOR HOUSING INC. 48 CONTROLLER NAME PLATE HP2071 MAKITA LABEL CARBON BRUSH CB-419 ****************************** RECEPTACLE SLEEVE SWITCH TG813TB-4 HANDLE COVER TAPPING SCREW 4X25 STRAIN RELIEF TAPPING SCREW 4X18 NOISE SUPPRESSOR CORD GUARD 8

*** *** 1 1

******************************

PAGE 2

059 A01 A02 665394-6 324219-0 824650-5 POWER SUPPLY CORD 1.0-2-2.5 DEPTH GAUGE PLASTIC CARRYING CASE

SERVICE DRAWING

ECHNICAL INFORMATION
HP2070, HP2070F, HP2071, HP2071F 20mm (3/4") 2-Speed Hammer Drill L W

Models No. Description

NEW TOOL P 1 /13
CONCEPT AND MAIN APPLICATIONS
These hammer drills have been developed as the highest specification models of Makita hammer drills. Their features are; * Powerful 1,010W motor * New reversing system prevents the speed reduction of motor in reverse rotation. * Mechanical 2 speed, and electronic speed adjusting dial for presetting maximum speed * LED job light convenient for operations at dimly lit job sites (HP2070F and HP2071F) * Keyless drill chuck (HP2071 and HP2071F)

H H HP2071 HP2070

Dimensions : mm [inch] Length ( L ) 362 [14-1/4] Height ( H ) 220 [8-5/8] 70 [2-3/4] Width ( W )

Specification

Voltage (V) 240 Model No. No load speed (min -1= rpm) Blows per min. (min -1= bpm) Drill chuck Chuck ability (mm [inch]) Concrete Drilling capacity Steel (mm [inch]) Wood High Low High Low Current (A) 9.7 8.2 4.8 4.6 4.4 High Low High Low Cycle (Hz) 50 / / / / / 60 HP2070 Continuous Rating (W) Input Output 1,1,1,1,Max. Output (W) 1,100 1,100 1,100 1,100 1,100
Reverse switch Mechanical speed change Torque limiter LED Job light Protection against electric shock Cord length (m [ft]) Net weight (kg [lbs])
HP2070F HP2071 HP2071F 0 - 2,- 1,- 58,- 24,000 Keyed Keyless 2.0 - 13 [1/16 - 1/2] 20 [13/16] 8 [5/16] 16 [5/8] 25 [1] 40 [1-9/16] Yes 2 speed Yes Yes No Yes by double insulation 2.5 [8.2] 2.4 [5.3]

Standard equipment

* Depth gauge.. 1 pc. * Side handle set.. 1 set * Plastic carrying case. 1 pc. * Chuck key S13 (HP2070 and HP2070F). 1 pc. * Key holder (HP2070 and HP2070F).. 1 pc. < Note > The standard equipment for the tool may differ from country to country.

Optional

accessories
* Depth gauge * Wrench * Blow out bulb * Keyless drill chuck set * Drill chuck set * Side handle set * Drill stand type 43
* T.C.T. drill bits 5.0 - 19.0 * Drill bits for steel 5.0 - 13.0 * Drill bits for wood 5.0 - 40.0 * Hole saws 16 - 120 * Metal borer 14 - 35 * Chuck key S13 for HP2070 and HP2070F

P 2 /13

Repair
<1> Lubrication and Adhesive Application Lubrication Apply Makita grease N No.1 to the following portions designated by the black triangular mark to protect the parts and the tool from unusual abrasion. (Fig.1) Item No. in parts breakdown Fig. Amount (g [oz]) Proper amount approx. 25 [7/8] Proper amount
Part name Spindle Cam A Gear housing complete Change lever Gear complete Spur gear 29-37
Portion to lubricate Whole surface except threaded portion Cam surface Gear chamber Teethed portion Teeth Teeth
Adhesive Application Apply TREE BOND 1327 to the threaded portion of Bearing retainer when fastening Bearing retainer to Gear housing complete. (Fig.2) Fig. 2 Bearing retainer

Gear housing complete

P 3 /13
<2> Disassembling and Reassembling Procedures 1) Drill Chuck Disassembly; 1) Secure a Drill chuck extractor (1R139) firmly with a vise as illustrated in Fig. 3. 2) Fix the Spindle on the Drill chuck extractor by inserting the Spindle into the U-shaped notch on the Drill chuck extractor with the flat sides of the Spindle facing the edges of the notch. And then remove the Drill chuck by turning it counterclockwise with the repairing tools (1R223, 1R224 and 1R298). (Fig. 4) Use a pipe wrench to remove the Drill chuck, if the sleeve of the Drill chuck does not turn because of some troubles with the Drill chuck. Grip the periphery of the sleeve with the wrench, and turn the wrench counterclockwise. The keyed Drill chuck of HP2070/HP2070F can be removed using a Wrench 43 (781024-2).) Reassembly; When fastening the Drill chuck to the Spindle, set the torque of the Torque wrench shaft (1R223) to 35.7 to 45.9 N.m. Fig. 3 Drill chuck extractor (1R139) 17.0mm (11/16")

6300-4 6013BR 6300LR 6300L 8406 8406C DP4700 8420V 6310 HP2031 UT2201
Fig. 4 Drill chuck extractor Torque wrench shaft Hex. bar 10 with (1R139) 20-90 N.m (1R223) square socket (1R298)
2) Carbon Brush Disassembly; 1) Remove the three 4x25 Tapping screws, and separate the Handle cover from the Motor housing. (Fig. 5) 2) Turn the Brush holder unit (= F/R switch) to reverse position, and then remove the Carbon brush positioned on the opposite side of the Trigger switch using a small slotted screwdriver. (Fig. 6) 3) Take the Trigger switch off from the Motor housing, and set the Brush holder unit in neutral position. And then remove the Carbon brush on the side of the Trigger switch. (Fig. 7) Note; The Carbon brush on the side of the Trigger switch cannot be removed, if you turn the Brush holder unit in neutral position before separating the Switch trigger from the Motor housing. Fig. 6 Carbon brush on the opposite side of Trigger switch
Ratchet head 12.7 (1R224)
Fig. 5 Motor housing Handle cover
Tapping screw 4x25 (3pcs)

Fig. 7

Brush holder unit Reverse position
(A) Carbon brush on the side of Trigger switch (view from A) Trigger switch

P 4 /13

<2> Disassembling and Reassembling Procedures 3) Armature assembly Disassembly; 1) Remove the Carbon brushes as described on page 3. (Fig. 5, 6, 7) 2) Remove the three 4x35 Tapping screws, and then take out of the Motor housing the unit of the Armature assembly and the Gear housing cover. (Fig. 8) 3) Remove the Rubber Pin 4 to separate the Change lever A and Lever case from the Gear housing cover. 4) And then remove the Gear housing cover from the Armature assembly using a Gear extractor (1R045). (Fig. 9) 5) The Ball bearing 607LLB on the side of commutator can be removed using a Bearing extractor (1R269).) Fig. 9 Fig. 8 Change lever A Lever case Armature ass'y with Gear housing cover Motor housing 4x35 Tapping screws (3pcs) Gear extractor (large) (1R045) Armature ass'y

Rubber pin 4

Gear housing cover
4) Field and Brush holder unit Disassembly; 1) Shift the Controller till the Connectors appears entirely out of the Motor housing, and disconnect the Connectors that connect the Controller with the Field. (Fig. 10) 2) In order to remove the Field, remove the two 4x70 Tapping screws, and then gently hit the Motor housing with plastic or wooden hammer. (Fig. 11) Fig. 10 Controller Motor housing Connectors Fig. 11

Lead wires from Field Tapping screw 4x70 (2pcs) Fig. 12 3) The Brush holder unit can be removed from the Motor housing by pulling it in the direction of the black arrow after disconnecting the Lead wires which are connected to the Brush holder unit with the two Receptacles. (Fig. 12) Brush holder unit
Receptacles Lead wire A Lead wire B Lead wire C
Lead wires A B C from Trigger switch Controller 115V Controller 220-240V Controller color white white blue black

Motor housing

P 5 /13
Reassembly; 1) When replacing the Field, be sure to remove the Brush holder unit from the Motor housing before installing a new Field. And install the Brush holder unit after installation of a new Field. Note: When installing the Brush holder unit on the Motor housing, set the unit so that its two concave portions face the direction of the Trigger switch. (Fig. 13) 2) When fastening the 4x70 Tapping screws (Field screws), be sure to press the end of the Brush holder unit so that the unit cannot be pushed out of position. (Fig. 14) Fig. 14 Fig. 13 Brush holder unit Motor housing

Concave portions

Push the end of the Brush holder unit
5) Gear section Disassembly; 1) Remove the three 4x35 Tapping screws, and then separate the Gear housing from the Gear housing cover. (Fig. 15) 2) By pulling the Lock plate from the Gear housing, the following parts can be removed from the Gear housing; Change lever B, Pin 4, Rack 12, Spur gear 29-37 (Fig. 16) Fig. 15 Gear housing Gear housing cover Fig. 16 Gear housing Spur gear 29-37 Rack 12 Pin 4
Lock plate Tapping screw 4x35 (3pcs) Reassembly; 1) Assemble the Spindle section to the Gear housing as illustrated in Fig. 17. Fig. 17 Bearing retainer with Oil seal 19 Change lever B

Gear housing

Spindle section (includes Conical compression spring, Ring spring 11 Cup washer 15, Ball bearing 6202LLB and Cam A.)
Note: When assembling the Bearing retainer 20-36 and the Oil seal 19, refer to " 6) Bearing retainer 20-36 and Oil seal 19" on page 7. ("Reassembly of Gear section" continues to page 6.)

P 6 /13

2) Insert the arms of the Change plate B through the slots in the Rack 12, and then put the Spur gear 29-37 between the arms of the Change plate B. (Fig. 18) 3) Insert the Pin 4 into the Rack 12. Place the Gear housing as illustrated below, and then install the Gear 29-37 on the Spindle together with the parts you have assembled to the Gear 29-37. (Fig. 19) At this time, do not fail to set the Leaf spring in place in the Gear housing. (Fig. 19) Fig. 18 Spur gear 29-37 Rack 12 Pin 4 Fig. 19 Gear housing Leaf spring Spur gear 29-37
arm Change plate B Fig. 20 Spindle Spur gear 29-37 Spindle Rack 12 with change plate B
4) Push the Rack 12 into the Gear housing till it stops. And then, install the Change lever B on the Gear housing with its "I" mark which indicates low speed aligned with the triangular mark on the Gear housing. (Fig. 20) 5) Install the Lock plate on the Gear housing with its tail portion inserted between the ribs on the Gear housing as illustrated in Fig. 20.

Rack 12

Ribs Change lever B Lock plate

with I.

Fig. 21 6) Assemble the Gear complete to the Gear housing as illustrated in Fig. 21. Note: Do not disassemble the Gear complete, because it has torque limiter function and requires very difficult adjustment when reassembled.

Gear complete

P 7 /13
6) Bearing Retainer 20-36 and Oil Seal 19 Disassembly; 1) Using an Adjustable bearing retainer wrench (1R316), remove the Bearing retainer from the Gear housing. (Fig. 22) As the Bearing retainer has left-hand threads, turn the Bearing retainer 20-36 clockwise for loosening. (Fig. 23) 2) And then remove the Oil seal 19 from the Bearing retainer by deforming the seal with small slotted screwdriver. Fig. 22 Adjust the distance between the pins on the wrench to the diagonal distance between two U-shaped depressions on the Bearing retainer. U-shaped depression Fig. 23

Turn clockwise

Adjustable bearing retainer wrench (1R316)

Bearing retainer

Reassembly; 1) Press-fit the Oil seal 19 into the Bearing retainer using an arbor press and a Round bar 100 (1R251). (Fig. 24) Note: When installing a fresh Oil seal 19, apply proper amount of Makita grease N No.1 to its periphery beforehand. 2) Put appropriate amount of Three bond 1327 to the threaded portion of the Bearing retainer. And then fasten the Bearing retainer securely to the Gear housing by turning it counterclockwise with an Adjustable bearing retainer wrench (1R316). (Fig. 25) Fig. 24 Fig. 25
Arbor press Bearing retainer Round bar 100 (1R251) Turn counterclockwise
Oil seal 19 Bearing retainer
Apply Three bond 1327 to the threaded portion

P 8 /13

6) Spindle section Disassembly; 1) Remove the Ring spring 11 from the Spindle section using a Retaining ring S pliers. (Fig. 25) 2) Hold the Ball bearing 6202LLB on the Pipe 30 (1R232), and then, by pressing the Spindle with arbor press, the following parts can be removed from the Spindle; Cam A, Ball bearing 6202LLB, Cup washer 15, Conical compression spring (Fig. 26) Fig. 25 Fig. 26 Cam A Spindle section Arbor press Spindle Cam A Ball bearing 6202 LLB Pipe 30 (1R232) Ball bearing 6202 LLB Cup washer 15 Conical compression spring 15-24
Slotted screwdriver Ring spring 11 Retaining ring S pliers (1R004)

Spindle

Reassembly; 1) Install the Conical compression spring 15-24 and the Cup washer on the Spindle as illustrated in Fig. 27. Fig. 27 (armature side) Cup washer 15
Conical compression spring 15-24

[Correct]

(chuck side)

[Wrong]

2) Press-fit the Cam A and the Ball bearing 6202LLB onto the Spindle using the following repairing tools; Arbor press, Bearing setting pipe 15.2-23 (1R029), Bearing setting pipe 17.2-25(1R030), Bearing setting plate (1R035) (Fig. 28) Fig. 28 Cam A Ball bearing 6202 LLB Arbor press Bearing setting pipe (1R029) Spindle Cup washer 15 Conical compression spring 15-24 Bearing setting plate (1R035) Cam A Ball bearing 6202 LLB Bearing setting pipe (1R030)

P 9 /13

Circuit

diagram

1) HP2070 & HP2071 (without LED job light)
Color index of lead wires Black White Red Yellow

Power supply cord

black or brown white or blue
Connectors C1 Switch C2 M1 M2

Controller

Noise suppressor

Connectors Thermistor

Color of lead wire; white (115V) blue (220-240V)
Field Brush holder unit Carbon brush
Carbon brush on the side of Switch on the opposite side of Switch
Note: Noise suppressor is not used for some countries.

P 10 /13

2) HP2070F & HP2071F (with LED job light)

Connectors

Color of lead wire; red (115V) blue (220-240V)

Thermistor

Case of printed wiring board

Light circuit

Wiring

Fig. 28

diagram (1)

P 11 /13

Route lead wires as illustrated in Fig. 28.

A) Fix the two lead wires (a, b) from the Controller at the lead holder. B) Route the lead wires (a, b, c, d, e, f) from the Controller between the rib and the boss. C) Fix the white lead wire (c) from the Controller at the lead holders. D) Fix the red lead wire (b) from the Controller at the lead holders. E) Route the lead wires (b, g, i, j, k) between the rib and the Switch. F) Route the lead wires (h) from the Power supply cord between the ribs and the wall of the Motor housing.

Lead holder Boss Rib

a b c d e f

Switch

Lead wires color from to Field Switch Field Connector Connector Connector Field
a black Controller b red Controller c white (115V) Controller blue (220-240V) d black e red f white g white h black or brown white or blue Controller Controller Controller Switch
Power supply Thermistor cord via Controller Switch Switch Switch Connector Connector Connector
Noise suppressor (not used for some countries.)

i black j red k yellow

P 12 /13
Route lead wires as illustrated in Fig. 29. Fig. 29 A) Fix the two lead wires (a, b) from the Controller at the lead holder. B) Route the lead wires (a, b, c, d, e, f) from the Controller between the rib and the boss. C) Fix the white lead wire (c) from the Controller at the lead holders. D) Fix the red lead wire (b) from the Controller at the lead holders. E) Route the lead wires (b, g, i, j, k) between the rib and the Switch. F) Route the lead wires (h, l) as illustrated below in "cross section of F". G) Route the lead wires as illustrated below.
a black Controller b red Controller c white (115V) Controller blue (220-240V) d black e red f white g white black or brown h white or blue i black j red k yellow l Controller Controller Controller Switch
red (115V) Case of printed Switch blue (220-240V) wiring board LED Case of printed wiring board

m white

[Cross section of F] Case of printed wiring board h (lead wires from Power supply cord)
l (lead wires from the Case of printed wiring board to the Switch)
Noise suppressor (Integral part of Light circuit; not used for some countries.)

P 13 /13 diagram (2) For all models
When installing the Brush holder unit on the Motor housing, set the unit so that its two concave portions face the direction of the Trigger switch. (Fig. 30) Fig. 30 Brush holder unit Motor housing
Place the Connectors as illustrated in Fig. 31. Do not place it on the side of the U-shaped notch in the Motor housing. Note: Be careful not to pinch the lead wires between the Motor housing and the Controller. Fig. 31 Controller Connectors
Do not pinch the lead wires between the Motor housing and the Controller.

U-shaped notch

Keyless

drill chuck 13

HP2071 & HP2071F
If the Keyless drill chuck 13 cannot be loosened because of a jammed drill bit, take the following procedures to loosen the chuck; 1) Fix the sleeve section of the chuck securely with an adjustable spanner, etc. (Fig. 31) Note: Don not fix the retaining section at this time. 2) And then, with a wrench 19, etc, turn the hex. nut on the top of the chuck clockwise to loosen the chuck. (Fig. 31) Fig. 31
Retaining ring portion Sleeve portion Hex nut

Wrench 19

Pipe wrench