Makita BFL301F Technical Information page 5

R
epair
[3] -2. Disassembling/ Assembling of Bearing Retainer
DISASSEMBLING
Turn Bearing retainer clockwise using a spanner. of 32mm jaw capacity.
Now Bearing retainer can be removed by pulling it down. (Fig. 10).
ASSEMBLING
(1) Put O ring 18 in Bearing retainer after applying Seal lubricant No.101
and fix Spindle complete to Bearing retainer.
(2) Apply 2 g of Seal lubricant No.101 in the gear room of Angle head complete.
Do not let the lubricant touch to the threaded portion of Angle head complete in this step.
(3) Apply Loctite 603 to the threaded portion of Bearing retainer and screw it into Angle head complete.
In this step, remember to put Flat washer 5 to Spindle complete.
(4) Fasten Bearing retainer to the recommended torque of 50 - 70N.m by turning counterclockwise with the following
tools;
1R223, 1R220, 1R222, A-43424.
[3] -3. Disassembling/ Assembling/ Adjustment of Angle Head Section
DISASSEMBLING
*Shown in Fig. 11 are the parts of Angle head section.
Fig. 11
10
10) Angle head complete
11) Spiral bevel gear 9
12) Needle bearing 1212
13) Thin washer 12
(1) Remove Light covers (R) and (L), Ring spring 29, Lead cover and Switch cover. (Refer to [3] -1.)
(2) Grip two flats of Angle head by using wrench or vise and remove Hex nut M36-41 by turning counterclockwise with
1R223 and 1R341. (Figs. 12 and 13)
Caution: Do carefully clamp Angle head so as not to deform it by overtightening.
(3) Remove Angle head complete by turning counterclockwise.
(4) Remove Retaining ring R-32 by using 1R005, 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 Screwdriver magnetized by 1R288.
(6) Remove Retaining ring R-22 located inside Angle head complete using 1R005.
(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
Fig. 12
two flats
Angle head complete
Spiral bevel gear 9 section
11 12 13 14 15 16
14) Spacer
15) Ball bearing 6900LLB
16) Retaining ring S-10
17) Retaining ring R-22
Fig. 13
No.1R223
17 18 19 20
18) Internal gear 50
19) Retaining ring S-14
20) Flat washer 14
21) Pin 3 (5pcs)
No.1R341
Adjustable wrench
Fig. 10
Bearing retainer
Carrier section
21 22
23 24
22) Spur gear 14 (5pcs)
23) Carrier
24) Flat washer 26
25) Retaining ring R-32
Fig. 14
P 5/ 14
25