NAKAYA NKC-125MA User manual

Model Code NKC-125MA
Suitable Blade
Ø100～125mm (h21mm) Diamond Grinding Cup Wheel
Weight 470g (Main Unit with adaptor system)
Cut material Concrete, Block.
Suitable Makita / BOSCH / Dewalt / Milwaukee / Metabo / HiKOKI / FLEX 115-125mm angle grinder.
Angle Grinders
※Makita / BOSCH : X-LOCK model can't be fitted.
※Dewalt : D28137, DCG405FN can't be fitted.
※Milwaukee : AG10 / AGV10 series can't be fitted.
[Makita]
40Vmax series, GA5050R.
[Dewalt]
DWE4057,
DCG405P2 / 406N / 409NT / 416N
[Metabo]
WPB18LTXBL125 / WB18LTXBL125
WP18LTX125 / W18LTX125
WEV1500-125 / WE1500-125 series
Dust Extractor for 100-125mm Diamond Grinding Cup Wheel
INSTRUCTION MANUAL
WARNING
SPECIFICATIONS
N300290
INSTALLATION
Fig.1
1. Detach the Guard from Angle Grinder. (Fig.2)
2. Some models need its Lever detached. (Fig.3)
-1-
・DO NOT use the NKC-125MA with the angle grinder which can NOT be fitted correctly instructed by this manual.
・NKC-125MA is only for grinding concrete and block. DO NOT use for grinding steel or other materials.
・NKC-125MA must be used with the Vacuum suitable for the concrete dust.
・NKC-125MA is only for 100-125mm Diamond Grinding Cup Wheels. DO NOT use with abrasive wheels.
・Always check the NKC-125MA for damage, cracks, or deformation before use.
・DO NOT use the NKC-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 NKC-125MA away from gasoline, solvents, and paraffin.
・Ensure the work piece is securely clamped before working.
[a] Main Unit / [b] Lock Nut / [c] Flange / [d] Spacer T12 x id16 &14.3 / [e] Spacer T10 x id14.3
[ f ] Spacer T7 x id14.3 / [g] Joint / [h] Wrench (L) / [ i ] Wrench (S) / [k] Sub Plate / [m] Offset Plate
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
NKC-125MA
Fig.2
Fig.3
Some models ONLY.
[a]
Lever
Guard
Angle
Grinder
Check the instruction video
at this QR code.
Refer to the attached sheet for details.
※Based on the web
as of 2021 Sep.
[b]
[c]
[d]
[e]
[ f ]
[g]
[h]
[ i ]
[ m ]
[ k ]

-2-
3. Attach [a] Main Unit to Angle Grinder. (Some models need [m] Offset Plate between [a] and Angle Grinder)
4. Set [ d / e / f ] Spacer, [c] Flange, and Grinding Cup into Spindle.
5. Tighten the [b]Lock Nut with Wrench.
(Fig.4)
Wrench
[ d / e / f ]
Spindle
Refer to the attached sheet for details.
[m]
※
Some models ONLY.
If Diamond Cup is off center, loosen 3 screws with [ i ] Wrench(S) and adjust the position of [a] Main Unit. (Fig.5)
※Re-tighten 3 screws securely after adjustment.
[ i ]
Screws
Fig.4
Fig.5
Use proper Spacer.
1～5mm
[c]
[b]
Grinding Cup
Angle Grinder
[a]
[d]
[e]
[ f ]
Use the proper Spacer [ d / e / f ] to keep the bottom space 1～5mm under the Grinding Cup,
or it could lead to the leakage of dust at work. (Fig.6)
Fig.6

SURFACE GRINDING
1. Securely hold the angle grinder and handle.
2. Turn on the switch of the vacuum and angle grinder.
3. Place [a] Main Unit on material slowly, then move
the Angle Grinder toward the grinding direction.
(Fig.9)
-3-
6. Attach the Handle to the Grinder and
connect the Vacuum Hose into the Duct with
[ g ] Joint. (Fig.7)
7. If the Handle comes in contact, detach the
Side Cover from [a] Main Unit. (fig.8)
Fig.7
Fig.8
1. Detach the Front Cover and Side Cover from [a] Main Unit. (Fig.10)
2. Attach the Front Cover and Side Cover to [a] Main Unit, with its position changed. (Fig.11)
Fig.9
Fig.11
Handle
Vacuum Hose
Duct
[g]
x 2
Side Cover
CORNER GRINDING
Fig.10
Side Cover
x 2
Front Cover
x 2
[a]
x 2
x 2
Front Cover
Side Cover ※
※100～115mm Cup doesn't need the Side Cover.

Eto Naoya
Managing Director
-4-
09th-Dec. 2021
Head Office in Japan
NAKAYA CO.,LTD.
1313-92 Yanagisawa, Sanjo, Niigata, Japan
Fig.13
Fig.12
3. Securely hold the angle grinder and handle.
4. Turn on the switch of the vacuum and angle grinder.
5. Place the front surface against the wall.
6. Place [a] Main Unit on material slowly, then move the Angle
Grinder toward the grinding direction. (Fig.12)
7. If the Handle comes in contact, detach the Front
Cover from [a] Main Unit. (fig.13)
x 2
Front Cover
[ WALL ]
1. Bend each Hooks away from the Old Brush and pick it up. (Fig.14)
2. Set the Replacement Brush NKC-BR (optional parts) with each Hooks securely hold the Brush. (Fig.15)
BRUSH REPLACEMENT
Old
Brush Hook
Fig.14
Fig.15
Replacement Brush NKC-BR
(Optional Parts)