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 100-125mm class small angle grinder.
Angle Grinders
WARNING
SPECIFICATIONS
N300302
-1-
Explanation
of the pictograms.
Read the operating
instructions before use.
Wear
eye protection.
Wear
breathing protection.
Wear
ear protection.
Wear
protective gloves.
General
Warning.
NKC-125MA
※Based on the web
as of 2022 Sep.
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 correctly as 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.
Some special angle grinders (ex. X-LOCK type)
may not be installed. Please scan the QR code
on the left to check compatibility.
INSTALLATION
Guard
Grinder
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)
DCG405P2/406N/
409NT/416N
type only.
GWS18V-7 type
WPB18LTXBL125/ WB18LTXBL125
/ WP18LTX125/ W18LTX125/
WEV1500-125 / WE1500-125 type
[a] Main Unit / [b] Offset Plate / [c] Milwaukee Plate / [d] Wrench / [e] Lock Nut / [ f ] iD20 Ring / [ g ] Base Flange
[ h ] Adjustment Washer (4pcs.) / [ k ] Joint / [ m ] Washer
OVER VIEW
[k]
[b]
[ c ]
[ d ]
[a]
[m]
Sold Separately
Flange Set NKCFS-125MA
is required separately for M14 Spindle Grinders.
M14
[ e ]
[ f ]
[ g ]
[ h ]

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-
(Factory default)
, GA5050R type
#10 x 3
1
#7
[m] Washer
2
( x 2 )
#7
#15
[d]
Upper Bracket
Lower Bracket
3
4
( x 2 )
(1) Loosen M4 Bolt x 3pcs. at back side and detach the
Adapting Unit.
(2) Add [m] Washer into the Lower Bracket. (2pcs.)
(3) Change the Upper Bracket direction by operating [d]
Wrench.
(4) Turn the Lower Bracket clockwise until it stops. (2pcs.)
(5) Re-tighten M4 Bolt x 3pcs. to return the Adapting Unit to
its original position.
Adapting Unit
Lower
Bracket
5

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
9558NB 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 / 9558NBR type
M18FHSAG125 / AGV13-125XSPDEB / M18FSAGV125 / AGV15-125 /
AGV13-125 / AG13-125XSPD / AGV12-125 / AGV10-125 type
6. Hold the Inner Plate at [a] Main Unit and
tighten the Bolt with [d] Wrench securely.
[d]
Bolt
Inner Plate
[a]
-3-
HD18 type
WPB18LTXBL125 / WB18LTXBL125 / WP18LTX125 / W18LTX125 /
WEV1500-125 / WE1500-125 / WEV850-125 / WP850-125 / W850-125 /
W750-125 type
7. Set [g] Flange, [ f ] iD20
Ring and Cup Wheel into the
Spindle then tighten [e] Lock
Nut by Wrench.
[ h ]
Add [h] Adjustment Washer as needed,
so as to keep 1-5mm at the space
between Cup Wheel and material
surface.
M14 Spindle grinder needs
NKCFS-125MA.
(Sold Separately)
Spindle
Wrench
[ e ]
Cup
Wheel
[ f ]
[ g ]
1
～
5mm

If Spindle 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
23-Dec. 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 in Corner
Grinding.
※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.
Spindle