NAKAYA NK-125MA User manual

Model Code NK-125MA
Suitable Blade 115-125mm T1.5-2.2mm Diamond Blades.
Cut Depth 5-25mm (125mm Blade) 5-20mm (115mm Blade)
Weight 690g (Main Unit with adaptor system)
Work material Concrete, Block, and Tile.
Suitable Makita / BOSCH / Dewalt / Milwaukee / Metabo / HiKOKI / FLEX 115-125mm class small angle grinder.
Angle Grinders
Dust Extractor for 115-125mm Diamond Blade
INSTRUCTION MANUAL
WARNING
SPECIFICATIONS
N300289_Rev1
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.
[a] Main Unit / [b] Adapting Unit / [c] Bolt / [d] Wrench / [e] Offset Plate / [ f ] Milwaukee Plate
[g] Base Flange / [h] Spacer T9.5 / [ i ] Spacer T7 / [k] Spacer T6 / [m] Joint / [n] Washer / [p] Hook
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 Jan.
[a]
[b]
[c]
[d]
[g]
[h]
[ i ]
[k]
[e]
[n]
[p]
[m]
Separate [a] and [b].
[ f ]
Check the
Installation Guide.
Check the instruction
video at this QR code.
, GA5050R type
1. Detach the Guard from the grinder.
DWE4056 / 4057, DCG405P2 / 406N /
409NT / 416N type
WPB18LTXBL125 / WB18LTXBL125 /
WP18LTX125/ W18LTX125/ WEV1500-
125 / WE1500-125type
DCG405P2 /
406N / 409NT /
416N series
type only.
Above grinder needs its lever and related components detached.
(2 sets)
Metabo
WEPBA17-125 / WEBA17-125/ WEA17-125/
WEVA15-125/ WA13-125/ WEA11-125 type
WPB13-125/ WB18LTBL11-125/ WVB18LTBL11-
125 / WPB18LTBL11-125type
Sub Plate
is required
separately.
Makita / BOSCH : X-LOCK type
Dewalt : D28137/ DCG405FN type
Milwaukee : AGV10-125EK,
AG10-125EK,
AG800-125EK type
can NOT
be fitted. HiKOKI
G13SB4, G13SE3,G13BAWQZ, G13BY, G13YG type
WEPBA17-125/ WEBA17-125 / WEA17-125/
WEVA15-125 / WA13-125/ WEA11-125 type
WPB13-125 / WB18LTBL11-125/ WVB18LTBL11-
125 / WPB18LTBL11-125type
Sub Plate
Sold Separately
G13SB4, G13SE3, G13BAWQZ, G13BY, G13YG type
Large Flange
is required separately for
the "Large Flange" models
on the right.

2. Some grinders need preparation for [b] Adapting Unit.
Lower Bracket
(Factory default)
[b]
, GA5050R type
L1400 125 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.
・Take Clumping system off from [b] Adapting Unit.
#15
M18FHSAG125, AGV13-125XSPDEB, M18FSAGV125, AGV15-125,
AGV13-125, AG13-125XSPD, AGV12-125 type
#10 x 5pcs.
#15 x 2pcs.
HD28AG-125, AGV17-125,
AG16-125, AG8-125, AG9-125 type
(OLD type) L3410FR, L3410VR 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 [ f ] Milwaukee Plate must be set on gearcase for some grinders.
[b]
Gearcase
[e]
D28134 / DCG412N type
L1400 125 type
M18FHSAG125, AGV13-
125XSPDEB, M18FSAGV125,
AGV15-125, AGV13-125,
AG13-125XSPD, AGV12-125
type
Refer to the
Installation Guide.
[ f ]
[b]
[b]
9558 / 9565 type
[d]
[b]
(1) Change the Upper Bracket direction by operating [d] Wrench.
(2) Add [n] Washer into the Lower Brackets. (2pcs.)
#7
[n]
L1506VR, L9-11 125, LE9-11 125, L12-11 125, L13-10 125-EC, LE14-7 125 INOX, L15-11 125,
LE15-11 125, L3406VRG, LB17-11 125 type
[d]
[b]
(1) Change the Upper Bracket direction by operating [d] Wrench.
(2) Detach the Bracket Cover and attach [p] Hook to the Lower Brackets. (2pcs.)
Support
Bar
#7
#10
[p]
Bracket
Cover
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
HD28AG-125, AGV17-125, AG16-
125, AG8-125, AG9-125 type
L3410FR, L3410VR type
(OLD type)
GA5021 / GA5030 / GA5040 /
GA5041 / DGA511 / DGA515 /
DGA504 / DGA513 / DGA517 type
WPB18LTXBL125 /
WB18LTXBL125 / WP18LTX125 /
W18LTX125 / WEV1500-125 /
WE1500-125 / WEV850-125/
WP850-125 / W850-125 / W750-125
type
6. Keep holding [b] Adapting Unit and tighten the
Bolt with [d] Wrench securely.
[d]
Bolt
(OLD type)
HD28AG-125, AGV17-125 series,
AG16-125 series, AG8-125, AG9-125 type
L3410FR, L3410VR type
For some grinders, tighten 3
screws originally used for fixing
the Guard.
7. Set [h] / [ i ] / [k] Spacer, [g] Base Flange or Original Flange,
and Blade into the Spindle then tighten the Lock Nut by Wrench.
Wrench
Blade
Lock Nut
[g] or
Original Flange
[h] / [ i ] / [k]
Spindle
Refer to the
Installation Guide
Shaft
Hook
[b]
[a]
-3-
10. Tighten [c] Bolt with [d] Wrench.
Make sure that the rear end of
[b] Adapting Unit is securely hooked.
[d]
[c]
9. Rotate [a] Main Unit toward
[b] Adapting Unit
with Shaft as axis.
8. Hang the Shaft of [a] Main Unit into the Hook of
[b] Adapting Unit.
[b]

-4-
Head Office in Japan
NAKAYA CO.,LTD.
1313-92 Yanagisawa, Sanjo, Niigata, Japan
11. Hold [a] Main Unit and connect the Vacuum Hose into the Duct with [ m ] Joint.
Do NOT hold the grinder when
connecting the Vacuum Hose.
Vacuum Hose
[ m ]
Duct
12. Adjust the position of Guide Ring at Front Roller with that of Blade.
Front Roller
Guide Ring
Blade
13. 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
Base Line
Guide Mark
Scale
Eto Naoya
Managing Director
26th-May 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.