NAKAYA NKC-125MA User manual

Model Code NKC-125MA
Suitable Tool
Ø100～125mm (h21mm) Diamond Grinding Cup Wheel
Weight 470g (Main Unit with adaptor system)
Work material Concrete, Block.
Suitable Makita / BOSCH / Dewalt / Milwaukee / Metabo / HiKOKI / FLEX 115-125mm class small angle grinder.
Angle Grinders
WARNING
SPECIFICATIONS
N300290_Rev2
INSTALLATION
-1-
[a] Main Unit / [b] Offset Plate / [c] Milwaukee Plate / [d] Wrench / [e] Lock Nut / [ f ] Base Flange
[g] Spacer T12 / [ h ] Spacer T10 / [ i ] Spacer T7 / [k] Joint / [m] 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
NKC-125MA
Guard
Grinder
※Based on the web
as of 2022 Jan.
Metabo
WEPBA17-125 / WEBA17-125/ WEA17-125/
WEVA15-125/ WA13-125/ WEA11-125type
WPB13-125 / WB18LTBL11-125/ WVB18LTBL11-
125 / WPB18LTBL11-125type
Sub Plate
NK-SPMA
is required
separately.
WEPBA17-125/ WEBA17-125 / WEA17-125/
WEVA15-125/ WA13-125/ WEA11-125type
WPB13-125/ WB18LTBL11-125/ WVB18LTBL11-
125 / WPB18LTBL11-125type
Sub Plate NK-SPMA
Sold Separately
G13SB4, G13SE3, G13BAWQZ, G13BY, G13YG type
Large Flange
is required separately for
the "Large Flange" models
on the right.
[k]
Check the
Installation Guide.
Check the instruction
video at this QR code.
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 type only.
Above Grinder needs its lever and related components detached.
Dust Extractor for 100-125mm Diamond Grinding Cup Wheel
INSTRUCTION MANUAL
・DO NOT use NKC-125MA with the angle grinder which can NOT be fitted correctlyas instructed in the 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 NKC-125MA for damage, cracks, or deformation before use.
・DO NOT use 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.
[b]
[ c ]
[ d ]
[e]
[ f ]
[g]
[h]
[ i ]
[a]
[m]
[p]
, GA5050R type
(2 sets)
HiKOKI
G13SB4, G13SE3,G13BAWQZ,G13BY, G13YG type
Makita / BOSCH : X-LOCK type
Dewalt : D28137/ DCG405FN type
Milwaukee : AGV10-125EK,
AG10-125EK,
AG800-125EK type
can NOT
be fitted.

2. Some Grinders need
preparation for Upper Bracket
and Lower Bracket at [a] Main
Unit.
3. Switch the Lower Brackets position when the gearcase size D of the Grinder is larger than 47mm.
D<47
mm
D>47
mm
[for D<47mm grinder]
(Factory default)
[for D>47
mm
grinder]
Refer to the
Installation Guide.
Upper
Bracket
Lower
Bracket
[a]
-2-
, GA5050R type
#10
(3pcs.)
1
#10
(5pcs.)
2
3
#15
(2pcs.)
HD28AG-125, AGV17-125,
AG8-125, AG9-125 type
(OLD type) L3410FR, L3410VR type
4
Upper
Bracket
Unit
Adapting Unit
[d]
#7
[m]
(1) Change the Upper Bracket direction by
operating [d] Wrench.
(2) Add [m] Washer into the Lower Brackets.
(2pcs.)
1
2
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]
1
#7
#10
[p]
2
(1) Change the Upper Bracket direction by
operating [d] Wrench.
(2) Detach the Bracket Cover and attach
[p] Hook to the Lower Brackets. (2pcs.)
Bracket
Cover
(Factory default)
L1400 125 type
(1) Loosen M4 Bolt x 3pcs. at back side and detach the Adapting Unit.
(2) Loosen M4 Bolt x 5pcs. at Adapting Unit and detach the Upper Bracket unit.
(3) Loosen M5 Bolt at Adapting Unit and detach the Lower Bracket. (2pls.)
(4) Re-tighten M4 Bolt x 3pcs. to return the Adapting Unit to its original position.

4. Place [a] Main Unit on gearcase of the Grinder.
Some Grinders need [b] Offset Plate or
[c] Milwaukee Plate preset on its gearcase. D28134, DCG412N type
L1400 125 type
9558 type M18FHSAG125, AGV13-125XSPDEB,
M18FSAGV125, AGV15-125, AGV13-
125, AG13-125XSPD, AGV12-125,
AGV10-125 type
Gearcase
[a]
[b]
[c]
5. Align the center of [a] Main Unit and Spindle,
then push [a] Main Unit upward until it stops.
(For some Grinders, just match the shapes of the fitting area)
1
2
Spindle
[a]
9565 / 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
M18FHSAG125, AGV13-125XSPDEB,
M18FSAGV125, AGV15-125, AGV13-125,
AG13-125XSPD, AGV12-125, AGV10-125
type
HD28AG-125, AGV17-125, AG16-125, AG8-
125, AG9-125 type
L3410FR, L3410VR type
(OLD type)
6. Hold the Inner Plate at [a] Main Unit and
tighten the Bolt with [d] Wrench securely.
[d]
Bolt
Inner Plate
[a]
HD28AG-125, AGV17-125, AG16-125,
AG8-125, AG9-125 type
L3410FR, L3410VR type
(OLD type)
-3-
1～5mm
7. Set [g / h / i ] Spacer, [ f ] Flange, Cup
Wheel into the spindle then tighten [e] Lock
Nut by Wrench.
※Use proper Spacer [ g / h / i ] to keep the
bottom space 1～5mm under the Cup Wheel.
Refer to the
Installation Guide.
Wrench
Cup Wheel
[e]
[ f ]
Spindle
[g]
[h]
[ i ]
For some Grinders,
tighten 3 screws
originally used for
fixing the Guard.
HD18 type

If [ f ] Flange is off center, loosen M4 Bolt x 3pcs. at back side and adjust the position of [a] Main Unit.
※Re-tighten 3 screws securely after adjustment.
#10
-4-
Head Office in Japan
NAKAYA CO.,LTD.
1313-92 Yanagisawa, Sanjo, Niigata, Japan
Eto Naoya
Managing Director
18th-Aug. 2022
M4 Bolt
[a]
8. Hold [a] Main Unit and connect the Vacuum Hose into the Duct with [ k ] Joint.
Do NOT hold the Grinder when connecting the
Vacuum Hose.
Vacuum
Hose
[ k ]
Duct
[ a ]
9. Attach the Handle to the Grinder.
※If the Handle comes in contact,
detach the Side Cover.
x 2
Side Cover
SURFACE GRINDING
CORNER GRINDING
Side Cover
Front Cover
x 2
x 2
1. Securely hold the Grinder and Handle.
2. Turn on the switch of the vacuum and Grinder.
3. Place [a] Main Unit on material slowly, then move
the Grinder toward the grinding direction.
Handle
※
100
～
115mm Cup Wheel doesn't
need the Side Cover.
※If the Handle comes in contact,
detach the Front Cover.
1. Detach Front Cover and Side Cover,
then replace their positions.
2. Hearafter same as "SURFACE
GRINDING" on the left.
[ f ]