Makita BFL300F, BFL400F, BFL401F User Manual

ECHNICAL INFORMATION

Models No.

BFL300F, BFL400F, BFL401F

NEW TOOL

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Description

Cordless Angle Screwdriver 14.4V

CONCEPT AND MAIN APPLICATIONS

Models BFL300F and BFL400F have been developed as specialist tools for industrial assembly applications, featuring high torque capacity of 30N.m (BFL300F)/ 40N.m (BFL400F). Their brief advantages are; *High precision fastening *DC brushless motor for increased no load speed *14.4V, 2.7Ah Ni-MH battery equipped with new type battery cells for more efficient energy supply to motor

Model BFL401F is a sister tool designed for Italy. These models do not include battery and charger.

Specification

Model No. Length (L) Width (W)

Height (H) Head height (HH) Center height (CH)

Dimensions: mm (")

BFL300F

506 (20) 510 (20-1/16)

73 (2-7/8)

104 (4-1/8)

31.5 (1-1/4) 16 (5/8)

*Battery is optional.

BFL400F/ BFL401F

104 (4-1/8) 34 (1-5/16)

73 (2-7/8)

18 (11/16)

BFL300F Voltage: V Capacity: Ah

Battery

Cell

Capacity 9.5mm (3/8") Square drive*

Fastening torque: N.m

No load speed: min.-1=rpm Net weight: kg (lbs)

*Note: 12.7mm (1/2") with optional Spindle G complete

Hard joint Soft joint

16 - 30 25 - 40 16 - 30 25 - 40

400 260

2.3 (5.1) 2.4 (5.3)

Ni-MH

BFL400F/ BFL401FModel No.

14.4

2.7

Standard equipment

No (however, with Protector for some countries, and with Torque adjust tool for some countries)

Optional accessories

Ni-MH battery BH1427 Chargers DC24SA, DC14SA, DC14SC Automatic refreshing adapter ADP03 Switch lever set (paddle switch) Spindle G complete (12.7mm square drive) Protectors Red, Blue, Yellow, Clear Torque adjust tool

Repair

Warning: Always be sure to disconnect battery cartridge from the machine before starting repair. Note: See the instruction manual for safety instructions, safety rules and operating instructions.

-- Contents --

[1] Necessary Repair Tools ..................................................................................... III - 1

[2] Grease and Adhesive ......................................................................................... III - 1

[3] Disassembling/ Assembling .............................................................................. III - 2

[3] -1. Disassembling/ Assembling of Job Light Section ................................... III - 2, 3

[3] -2. Disassembling/ Assembling of Bearing Retainer .................................... III - 3

[3] -3. Disassembling/ Assembling/ Adjustment of Angle Head Section ........... III - 3, 4

[3] -4. Disassembling/ Assembling of Clutch Case Section ............................... III - 4, 5

[3] -5. Disassembling/ Assembling of Clutch Section ........................................ III - 5

[3] -6. Disassembling/ Assembling of Gear Case Section .................................. III - 5 -7

[3] -7. Disassembling/ Assembling of Switch Section ........................................ III - 7, 8

[1] NECESSARY REPAIR TOOLS

(Code No.) (Tool Name) 1R004 Retaining Ring Pliers ST-2 1R005 Retaining Ring Pliers RT-2N 1R006 Retaining Ring Pliers RT-2E 1R008 Tips for Retaining Ring Pliers 1R033 Bearing setting Plate 10.2 1R219 Torque Wrench Shaft 7-23N.m 1R220 Ratchet Head 9.5 1R222 Socket Adapter

(Code No.) (Tool Name) 1R223 Torque Wrench Shaft 20-90N.m 1R269 Bearing Extractor 1R291 Retaining Ring S and R Pliers 1R341 Spanner Head 134844-7 Socket 27-50 Ass'y 134848-9 Socket 27-50 Ass'y 765025-8 Torque Adjust Tool

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[2] LUBRICATION AND ADHESIVE

See the parts breakdown below. Apply 2.0g of Makita Grease N. No.2 to the portions designated with the mark of . Apply Makita seal lubricant to the portions designated with the mark of . Apply Loc-Tite 603 to the portions designated with the mark of .

Fig. 1

2221

43 45

51 52 53

The portions to lubricate with Makita Seal Lubricant No. 101

10. Gear room of Angle Head Complete

21. Pin 3 (5 pcs)

22. Teeth of Spur Gear 14

31. Hole on Spur Gear 21

39. Threads on Spindle

40. Steel Ball 5.0 (3 pcs)

43. Steel Ball 4 (3 pcs)

45. steel ball 3 (13 pcs)

63. O Ring 15

The portions to lubricate with Makita Grease N No.2

48. Three gear shafts of Carrier Complete (A)

51. Spur Gear 13 (3 pcs)

52. Spur Gear 20 Complete

53. Spur Gear 15 (3 pcs)

The portions to apply Loc-Tite 603

36. Threaded portion of Bearing Retainer 15-26

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[3] DISASSEMBLING/ ASSEMBLING [3] -1. Disassembling/ Assembling of Job Light Section

DISASSEMBLING

*Shown in Fig. 2 are the parts of Job light section.

1) Remove Lead cover (on which Ring spring 36 is installed) and Ring spring 29 using a slotted screwdriver. (Figs. 3, 4)

2) Remove Light covers (R) and (L) while pushing the portion designated with the gray circle to unlock the tab on Light cover (R) from the slot in (L). (Fig. 5)

3) Separate Switch cover from the tool by removing two M4x8 Pan head screws.

4) Remove Lead wires and LED circuit from Lead wire holders and Light cover (R), and disconnect Connector. (Fig. 6)

Fig. 2

Light cover (L)

Light cover (R)

Fig. 3 Fig. 4 Fig. 5

Push the end face of Lead cover using a slotted screwdriver till it is lifted up as illustrated to left below. Now Lead cover can be removed by pulling in the direction o the arrow as illustrated to right.

Ring spring 29

Pan head screw M4x8 (for fixing Ring 38)

Lead cover Switch cover

Pan head screw M4x8 (for fixing Switch cover)

Ring spring 29

Push here.

tab

ASSEMBLING

1) Fix Lead wires securely with Lead wire holders, and then install LED circuit on Light cover (R). At this time, put the sag of Lead wires in place as illustrated to right in Fig. 6.

2) Push the tab on Light cover into the cut in Housing before fastening screws. And then fasten Switch cover with two M4x8 Pan head screws. Be careful not to pinch the Lead wires at this time. (Figs. 2, 7)

3) Install Light covers (R) and (L) while locking the tab on Light cover (R) in the slot in (L), then Ring spring 29. (Fig. 5) Ring spring 29 can be easily installed by fixing one end on the groove in Light cover, then pushing toward Light cover while expanding the other end. (Fig. 8)

4) Being careful not to pinch the Lead wires from LED circuit, install Lead cover (on which Ring spring 36 is installed) as illustrated in Fig. 9.

Fig. 6 Fig. 7

LED circuit Lead wire holders Switch cover tab

Put the sag of Lead wires in this portion.

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[3] -1. Disassembling/ Assembling of Job Light Section (cont.)

Fig. 8 Fig. 9

Lead cover

Ring spring 36

Lead wire

Ring spring 29

[3] -2. Disassembling/ Assembling of Bearing Retainer

DISASSEMBLING

Turn Bearing retainer clockwise using a 27mm spanner for BFL300F/ 32mm spanner for BFL400F and BFL401F. Now Bearing retainer can be removed by pushing it down as illustrated in Fig. 10.

ASSEMBLING

1) After applying Makita seal lubricant No.101 to O ring 15, put O ring 15 and Bearing retainer in place on Spindle complete.

2) Put 2g of Makita seal lubricant No.101 in the gear room of Angle head complete. At this time, be careful not to put the grease on the threaded portion of Angle head complete.

3) Apply Loctite 603 to the threaded portion of Bearing retainer, and screw it into Angle head complete. At this time, remember to put Flat washer 5 in place.

4) Fasten Bearing retainer to the recommended torque of 30 - 50N.m by turning counterclockwise with the following tools; 1R219, 1R220, 1R222, 134844-7 (for BFL300F), 134848-9 (for BFL400F/ BFL401F)

Fig. 10

Bearing retainer

[3] -3. Disassembling/ Assembling/ Adjustment of Angle Head Section

DISASSEMBLING

*Shown in Fig. 11 are the parts of Angle head section.

Fig. 11

10) Angle head complete

11) Spiral bevel gear 9

12) Needle bearing 1212

13) Thin washer 12

14) Spacer

1) Remove Light covers (R) and (L), Ring spring 29, Lead cover and Switch cover. (Refer to [3] -1.)

2) Fix Angle head by clamping its two flats using adjustable wrench or vise, and remove Hex nut M36-41 by turning in the direction of the arrow with 1R223 and 1R341. (Figs. 12, 13) Caution: When clamping Bearing retainer, be very careful not to deform it by overtightening.

3) Remove Angle head complete by turning counterclockwise.

4) Remove Retaining ring R-32 using 1R006 or the like, then Flat washer 26, Internal gear 50 and Carrier section.

5) Remove Retaining ring S-14 from Carrier section using 1R291 or the like. Now the following parts can be replaced; Flat washer 14, Pin 3 (5pcs), Spur gear 14 (5pcs) Note: Pin 3 can be pulled out easily by using a magnet.

6) Remove Retaining ring R-22 located inside Angle head complete using 1R005 or the like.

7) Remove Spiral bevel gear 9 section by hitting the end face of Angle head complete. (Fig. 14)

8) Remove Retaining ring S-10 from Spiral bevel gear 9 section using 1R004, 1R008 or the like. Now the following parts can be replaced by removing Ball bearing 6900LLB with 1R269 or the like: Spiral bevel gear 9, Spacer, Thin washer 12, Needle bearing 1212

Spiral bevel gear 9 section Carrier section

21 22

11 12 13 14 15 16 17 18 19 20 23 24 25

15) Ball bearing 6900LLB

16) Retaining ring S-10

17) Retaining ring R-22

18) Internal gear 50

19) Retaining ring S-14

20) Flat washer 14

21) Pin 3 (5pcs)

22) Spur gear 14 (5pcs)

23) Carrier

24) Flat washer 26

25) Retaining ring R-32

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