background image

R

epair

P 4 / 15 

< 1 > Lubrication 

Apply MAKITA grease N No.1 to the following portions marked with black triangle to protect parts and machine 
from unusual abrasion.  See Fig. 1.

< 2 > Sealing 

< 3 > Disassembling and assembling

Apply three bond 1215 to the following portion of gear housing cover which joins to gear housing, when assembling.
See Fig. 2.

(1) Removing shoe
     Turn lever 60 (adjusting lever for shoe), and take off pan head screw M4x10. Then, lever 60 can be removed.
     Take off hex bolt M8x25 (This hex bolt can be unscrewed by using lock lever as a wrench.), and inner plate. 
     Remove shoe by pulling out.  See Fig. 3.

(2) Disassembling blade clamp section
     Remove shoe as mentioned above.  Pull out the blade clamp section, if it stays near gear housing.
     1. Take  off retaining ring S-18 with No.1R291 "Snap ring plier".
     2. Take  off driving sleeve, shoulder pin 5, compression spring 6,
         pin 3, guide sleeve and driving sleeve guide from slider. 

Apply 7g.

Slider

Apply 12g.

Gear housing

Apply here three bond 1215
for sealing.

Gear housing cover

Fig. 1

Fig. 2

Fig. 3

Fig. 4

 Turn lever 60 
 (adjusting lever for shoe).

Take off pan head screw M4x10.
<Note> Be careful, not to lose 
             hex nut M4 in lever 60.

Pan head screw
M4x10

Lever 60

Hex nut M4

Lock lever

Inner plate

Hex bolt M8x25

Pull out shoe.

Retaining ring S-18

Driving sleeve

Compression spring 6

Shoulder pin 5

Pin 3

Sleeve

Summary of Contents for MAKSTAR BJR240SH

Page 1: ...features for easy and rapid changing recipro saw blade and for easy adjusting shoe The variations of this model are listed below w B2430 w B2417 Battery Voltage V Capacity Ah Length of Stroke Strokes...

Page 2: ...ration 24V Ni MH Battery with new charging system The fastest cutting speed among the cordless recipro saws See the graph in Comparison of Products at page 3 Comparison of products Model No Specificat...

Page 3: ...of competitor A s model as 100 21 sec 50 100 150 200 250 100 50 100 150 200 250 100 110 120 80 Amount with 1 7Ah battery B2417 Whole amount with 3 0Ah battery B2430 Amount with 1 7Ah battery B2417 Who...

Page 4: ...e shoe by pulling out See Fig 3 2 Disassembling blade clamp section Remove shoe as mentioned above Pull out the blade clamp section if it stays near gear housing 1 Take off retaining ring S 18 with No...

Page 5: ...ving sleeve take off push plate compression spring 2 and torsion spring 17 from slider as illustrated in Fig 6B Fig 5 Sleeve Pin 3 long Torsion spring 17 Slider Blade installing side Gear housing side...

Page 6: ...g through the hole of push plate as illustrated in Fig 9A 4 Remove guide sleeve and push the driving sleeve toward the gear housing side turning it clockwise Then sleeve can be brought to the locked p...

Page 7: ...using side from slider See Fig 12A Aligning the convex portion of driving guide with the concave portions of sleeve and driving sleeve guide assemble driving sleeve and fasten it with retaining ring S...

Page 8: ...of MAKITA grease N No 1 1 Pass slider through plane bearing 14 from the blade clamp side as illustrated in Fig 14 And then pass the slider through dust seal in gear housing cover Assemble plane beari...

Page 9: ...1 Remove insulation cover and shoe 2 Unscrew 4 pcs of pan head screws M5x18 and separate gear housing cover from gear housing as illustrated in Fig 12 at page 7 3 Lock crank shaft by inserting No 1R24...

Page 10: ...e can be removed from gear shaft See Fig 17C Note Use impact driver for loosening countersunk head screws M5x12 because it is difficult to loosen them with hand due to the adhesive on countersunk head...

Page 11: ...head bolt M10x18 is 15 20N m Hex socket head bolt M10x18 Fig 18 Fig 19 Concave portion of bearing retainer 58 Edge of bearing setting hole of gear housing Bearing retainer 58 Countersunk head screws M...

Page 12: ...ring Extractor Then armature can be separated from bearing retainer 58 Holding the armature body with plier remove ball bearing 627DDW with No 1R269 Bearing Extractor See Fig 20B Note Countersunk head...

Page 13: ...screws M4x30 Tapping screws M4x20 Handle R Switch Terminal Lock off butt Fig 21 Bumper Brush holder Brush holder cap Carbon brush Brush holder cap Carbon brush Fig 22 11 Note in assembling handle sect...

Page 14: ...older Terminal High Low speed change switch FET Left Right Rear side of motor housing Lead holder B Lead holder A Rib Lead wires from brush holders Pass lead wires of brush holders through rib holding...

Page 15: ...h this lead holder Fix FET s 3 lead wires Black with this lead holder Pass lead wire Black from brush holder through the space between pin and inner wall Wiring at the Inner wall portion Inner wall Sw...

Reviews: