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F

eatures and benefits

P 2 / 15 

BJR240

Incredible low vibration with counterbalancing
system in its gear unit.

Model No.

Loaded

No loaded

BJR240

8.7m/sec.2 10.3m/sec.2

Mod. A

11.5m/sec.2 19.8m/sec.2

Mod. B

20.4m/sec.2 20.9m/sec.2

Mod. C

14.4m/sec.2 16.2m/sec.2

Mod. D

8.1m/sec.2

9.4m/sec.2

MAKITA

Lower noise level

Comparison of the specifications

Model No.

Loaded

No loaded

BJR240

82 dB

94 dB

85 dB

94 dB

85 dB
85 dB

94 dB
97 dB
95 dB

91 dB

MAKITA

BJR240

MAKITA

The figures on loaded condition are based on
the cutting of chip board 19mm in thickness. 

The figures on loaded condition are based on
the cutting of chip board of 19mm in thickness. 

Push-in Lock System has
made it possible to install
the blade quickly.

New tool-less blade change system 

Lock off push-out system has 
enabled to take off the hot saw 
blade of just after work, without 
touching it.

Externally accessible
carbon brush

Tool-less shoe
adjustment

Electric High /Low 
speed change switch

Palm fitting
soft grip

Lock off button can be
pushed from both of left
and right. 

Switch with big trigger
for easy operation

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.

C

omparison of products

Model No.

Specifications

Voltage

Tool-less
system

Length of Stroke 
             : mm (1-1/4")

Strokes per  
  Minute :spm.(min-1)

High

Dimensions
including
battery

Weight including
                       battery  :Kg (lbs)

Low

High

Low

Suppressing the vibration

Externally accessible brush

for replacing blade
for adjusting shoe

Palm fitting soft grip

Height : mm(")

Width : mm(")

Length : mm(")

32 (1-1/4)

0 - 2,700

0 - 2,300

24

Yes
Yes

Yes
Yes
Yes

469 (18-1/2)

230 (9)

*255 (10)

88 (3-1/2)

4.4  (9.7)

*4.9  (10.8)

29 (1-1/8)

28 (1-1/8)

25 (1)

0 - 2,900

0 - 2,900

0 - 2,400

24

Yes
Yes
Yes

463 (18-1/4)

232 (9-1/8)

80 (3-1/8)

3.9  (8.6)

JR180D

23 (7/8)

0 - 2,700

18

No

No
No

Yes

No

Yes

Yes

No

Yes

Yes
Yes
No

447 (17-5/8)

206 (8-7/8)

95 (3-3/4)

3.5  (7.7)

32 (1-1/4)
19 (3/4)

0 - 2,300

0 - 2,600

24

24

19.2

No

No

No

No

Yes
Yes
Yes

Yes

Yes

Yes

495 (19-1/2)

213 (8-3/8)

76 (3)

448 (17-5/8)

240 (9-1/2)

83 (3-1/8)

3.9  (8.6)

4.3  (9.5)

393 (15-1/2)

202 (8)

76 (3)

4.5  (9.9)

*255 (10) and *4.9  (10.8) are the data when battery B2430 is attached.

Competitor A
Competitor B
Competitor C

Competitor D

Mod. A
Mod. B
Mod. C
Mod. D

Mod. D

Competitor A
Competitor B
Competitor C
Competitor D

Mod. A

Competitor 
       A

Competitor 
       B

Competitor 
       C

Competitor 
       D

Mod. B

Mod. C

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...

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