NAKAYA NK-125MA User manual

Model Code NK-125MA
Suitable Blade 105-125mm T1.5-2.2mm Diamond Blades.
Cut Depth 5-25mm (125mm Blade) 5-15mm (105mm Blade)
Weight 690g (Main Unit with adaptor system)
Work material Concrete, Block, and Tile.
Suitable Makita / BOSCH / Dewalt / Milwaukee / Metabo / HiKOKI 100-125mm class small angle grinder.
Angle Grinders
[a] Main Unit / [b] Adapting Unit / [c] Bolt / [d] Wrench/ [e] Offset Plate / [ f ] Flange
[g] Milwaukee Plate / [h] Joint / [n] Washer
Dust Extractor for 105-125mm Diamond Blade
INSTRUCTION MANUAL
WARNING
SPECIFICATIONS
N300303
INSTALLATION
-1-
・DO NOT use NK-125MA with the angle grinder which can NOT be fitted correctly as instructed in this manual.
・NK-125MA is only for cutting concrete, block, and tile. DO NOT use for cutting steel or other materials.
・NK-125MA must be used with the Vacuum suitable for the concrete dust.
・NK-125MA is only for 115-125mm Diamond cutting blades. DO NOT use with abrasive wheels or tipped saw blades.
・Always check NK-125MA for damage, cracks, or deformation before use.
・DO NOT use NK-125MA if it is cracked, damaged or bent as this could lead to injury.
・Be sure to wear the protective goggles, dust mask, protective foot wear, earplugs and other protective equipment when working.
・Keep NK-125MA away from gasoline, solvents, and paraffin.
・Ensure the cutting material securely clamped before cutting.
Explanation
of the pictograms.
Read the operating
instructions before use.
Wear
eye protection.
Wear
breathing protection.
Wear
ear protection.
Wear
protective gloves.
General
Warning.
OVER VIEW
NK-125MA
Guard
Grinder
※Based on the web
as of 2022 Sep.
[a]
[b]
[c]
[d]
Separate [a] and [b].
Check the
Installation Guide.
, GA5050R type
1. Detach the Guard from the grinder.
DWE4056 / 4057, DCG405P2 /
406N / 409NT / 416N type
Above grinder needs its lever and related components detached.
(2 sets)
Some special angle grinders (ex. X-LOCK type)
may not be installed. Please scan the QR code
on the left to check compatibility.
DCG405P2/406N/
409NT/416N
type only.
GWS18V-7 type
WPB18LTXBL125/ WB18LTXBL125
/ WP18LTX125/ W18LTX125/
WEV1500-125 / WE1500-125 type
[ f ]
[ g ]
[e]
[ h ]
[n]
Sold Separately
Flange Set NKFS-125MA
M14
is required separately for M14 Spindle Grinders
of BOSCH, Dewalt, and Milwaukee.
(GWS12-125 type)

2. Some grinders need preparation for [b] Adapting Unit.
Lower Bracket
(Factory default)
[b]
, GA5050R type
Upper Bracket
3. Switch the Lower Brackets position when the gearcase size D of the angle grinder is larger than 47mm.
D<47
mm
D>47
mm
・Take Support Bar off from [b] Adapting Unit.
#15
M18FHSAG125 / AGV13-125XSPDEB / M18FSAGV125 / AGV15-125 /
AGV13-125 / AG13-125XSPD / AGV12-125 type
[for D<47mm grinder]
(Factory default)
[for D>47
mm
grinder]
4. Place [b] Adapting Unit on gearcase of
the grinder.
-2-
[e] Offset Plate or [ g ] Milwaukee Plate must be set on gearcase for some grinders.
[b]
Gearcase
[e]
D28134 /
DCG412N type M18FHSAG125 /
AGV13-125XSPDEB /
M18FSAGV125 / AGV15-125 /
AGV13-125 / AG13-125XSPD /
AGV12-125 type
Check the
Installation Guide.
[ g ]
[b]
9558NB type
[d]
[b]
(1) Change the Upper Bracket direction by operating [d] Wrench.
(2) Add [n] Washer into the Lower Brackets. (2pcs.)
#7
[n]
Support
Bar
HD18 type
5. Hold [b] Adapting Unit and push its dent at bottom
until it stops.
For some grinders, match the shape of grinder's
gearcase with the center hole of [b] Adapting Unit
then hold it from the top.
[b]
M18FHSAG125 / AGV13-
125XSPDEB / M18FSAGV125 /
AGV15-125 / AGV13-125 / AG13-
125XSPD / AGV12-125 type
9565 / GA5021 / GA5030 / GA5040 /
GA5041 / DGA511 / DGA515 /
DGA504 / DGA513 / DGA517 /
9558NBR type
WPB18LTXBL125 /
WB18LTXBL125 / WP18LTX125 /
W18LTX125 / WEV1500-125 /
WE1500-125 / WEV850-125/
WP850-125 / W850-125 / W750-125
type
[b]

6. Keep holding [b] Adapting Unit and tighten the
Bolt with [d] Wrench securely.
[d]
Bolt
8. Set the Blade into the Spindle then tighten the Lock Nut by Wrench.
Shaft
Hook
[b]
[a]
-3-
11. Tighten [c] Bolt with [d] Wrench.
Make sure that the rear end of
[b] Adapting Unit is securely hooked.
[d]
[c]
10. Rotate [a] Main Unit toward
[b] Adapting Unit
with Shaft as axis.
9. Hang the Shaft of [a] Main Unit into the Hook of
[b] Adapting Unit.
7. Set [ f ] Flange into the Spindle.
M14
M14 Spindle Grinders :
follow the instructions
on the right.
( [ f ] can't be used.)
(GWS7-125 type)
(GWS12-125 type)
Sold Separately
Flange Set
NKFS-125MA
Original Flange
[ f ]
Spindle
Set the Original Flange of the grinder
into the Spindle.
Set NKFS-125MA (sold separately)
into the Spindle.
[ f ]
[b]
Blade
Lock Nut
Wrench

-4-
Head Office in Japan
NAKAYA CO.,LTD.
1313-92 Yanagisawa, Sanjo, Niigata, Japan
12. Hold [a] Main Unit and connect the Vacuum Hose into the Duct with [ h ] Joint.
Do NOT hold the grinder when
connecting the Vacuum Hose.
Vacuum Hose
[ h ]
Duct
13. Adjust the position of Guide Ring at Front Roller with that of Blade.
Front Roller
Guide Ring
Blade
14. Attach the Handle into M8 / M10 port.
Handle
M8 port
M10 port
CUTTING
DO NOT lift or move backward the angle grinder as it leads to the scattering of the Dust.
1. Release the Thumb Screw and adjust the
position of Base to the required cut depth.
2. The Scale shows the approximate cut depth
when the Base Line is aligned with the Guide Mark.
Blade rotation
Cutting
Direction
Front Roller
Thumb Screw
Cut Depth
Base
Eto Naoya
Managing Director
26th-Dec 2022
[a]
3. Securely hold the angle grinder and handle.
4. Turn on the switch of the vacuum and angle grinder.
5. Place the Front Roller on material, then slowly forward the
angle grinder.
Base Line
Guide Mark
Scale