Makita BJR141RFE, BJR141Z User manual
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Description
ECHNICAL INFORMATION
Models No.
BJR141
Cordless Recipro Saw
PRODUCT
P 1 /10
W
CONCEPT AND MAIN APPLICATIONS
Model BJR141 has been developed as the successor model to
the current Model JR140D 14.4V cordless recipro saw.
While having the same basic construction as Model JR140D,
features the following additional advantages;
Lightweight design achieved by using Li-ion battery
as a power unit instead of Ni-cd battery.
More work amount on a single full battery charge
Non-skid handle angled and contoured ergonomically for
best-fitting to reciprocating cutting
This product is available in the following variations.
Model No.
BJR141Z
BJR141RF
BJR181RFE 2
Charger
Battery
type quantity
No No
BL1430 DC18RA
No
1
Specification
Voltage: V
Battery
Max output (W) 280
Length of stroke: mm (")
No load speed: min-1=spm 0 - 2,700
Max cutting capacities: mm (")
[when cutting with a 160mm blade]
Capacity: Ah
Cell
wood 90 (3-1/2)
pipe
Plastic
carrying case
No
Yes
14.4
3.0
Li-ion
23 (7/8)
90 (3-1/2)
L
Dimensions: mm (")
Length (L)
Width (W)
Height (H)
H
466 (18-3/8)
79 (3-1/8)
226 (8-7/8)
Variable speed Yes
Electric brake
Net weight*: kg (lbs)
*Includes battery BL1430
Yes
3.1 (6.8)
Standard equipment
Recipro saw blade for metal ............................................................... 1
Recipro saw blade for composite material (wood plus metal) ........... 1
Plastic carrying case ........................................................................... 1
Note: The standard equipment for the tool shown above may differ from country to country.
Optional accessories
Charger DC18RA
Charger DC24RC
Charger DC24SC
Li-ion battery BL1430
Assorted recipro saw blades
P 2 /10
Repair
CAUTION: Remove recipro saw blade and battery cartridge from the machine
for safety before repair/ maintenance !
[1] NECESSARY REPAIRING TOOLS
Code No. Description Use for
1R030 Bearing setting pipe 2.5-17.2 Press-fitting Dust seal 14 in Gear housing cover complete
1R269 Removing Ball bearing 6001DDW from the drive-end of Armature
1R291 Removing/installing Retaining ring S-18 from/on Blade clamp section
--- Recipro saw blade Assembling Pin 3 to Blade clamp section
[2] LUBRICATION and ADHESIVE
Lubrication: Apply Makita grease FA No.2 to the following portions designated with the black triangle to protect
parts and product from unusual abrasion. (Fig. 1)
Adhesive: When reusing threadlocker coated screws, be sure to apply adhesive before tightening.
Recommended adhesives are Threebond 1342 or Loctite 242.
Item No. Description Portion to be lubricate
2 Gear housing cover complete
4 Shoulder pin 5
Bearing extractor
Retaining ring S and R pliers
Inside surface of the lip portion of Dust seal 14
(Any kind of lubricating grease can be used.)
Pin head that contacts Driving sleeve
17
Slider complete Surface that contacts Needle bearing 708 (Put approx. 9g.)
43 Gear housing Gear room (Put approx. 9g.)
Fig. 1
Blade clamp section
Driving sleeve
Needle bearing 708
Dust seal 14
17
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -1. Blade Clamp Section
DISASSEMBLING
1) Remove Shoe as illustrated in Fig. 2.
Note: If the Blade clamp section is positioned inside Gear housing, pull it out of Gear housing.
Fig. 2
P 3 /10
Turn Lever 60 in the direction of the arrow.
Remove Pan head screw M4x10.
Remove Lever 60.
Note: Hex nut M4 will be left in Lever 60.
Be careful not to lose it.
[View from top]
Shoe
Blade clamp section
Lever 60
Pam head screw
M4x10
Hex nut M4
2) Remove Retaining ring S-18 using 1R291. The following parts can now be removed (Fig. 3):
Driving sleeve, Shoulder pin 5, Compression spring 6, Pin 3 (of 6mm length), Guide sleeve, Driving sleeve guide
Note: Sleeve is still locked on Slider in this step.
3) Unlock Sleeve from Slider as illustrated in Fig. 4.
Fig. 3
Insulation cover
By unscrewing Hex bolt M8x25, Shoe can now
be removed as illustrated below.
Blade clamp section
Shoe
Sleeve 9
Inner plate
Lock plate
Hex bolt M8x25
Insulation cover
Retaining ring S-18
Fig. 4
Pull up Sleeve until it stops against
Pin 3 (of 19.8mm length).
Slider
Pin 3
(of 19.8mm length)
Sleeve
Driving sleeve
Pin 3 (of 6mm length)
Guide sleeve
Driving sleeve guide
Turn Sleeve in the direction
of the arrow.
Shoulder pin 5
Compression spring 6
Sleeve
Slider
Sleeve is now unlocked.
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