M7 NC-4217, NC-2710, NC-8242, NC-82428, NC-8382 User Manual

Read this manual carefully before installing, operating,
servicing or repairing.

Working environment:

1.Using these tools in any potentially explosive environment is strictly prohibited.

2.It is always recommended that these types of tools must be operated when standing

on a solid or rm location.

3.Always use these tools in a well ventilated area.

4.Slipping, stumbling and falling are the major causes of potential serious injury,
therefore, a clean and clutter free surface in the working area before operating the
tools is strongly recommended.

Air supply and connection requirements:

1.The maximum recommended air pressure during operation must not exceed 90 psi
(6.3bar). Higher air pressure may create unsafe operating conditions for the tool and
the user.

2.The compressed air should be cooled and have a water lter installed at the outlet

end of the compressor. Even with a water filter installed, some water may still
condense in the piping or hose and will enter the tool mechanism causing premature
damage to the tool. Therefore, it is recommended to install an air filter-lubricator
device somewhere between the tool and the compressor.

3.Always use an air compressor of the proper capacity to operate each tool.

4.Clean the hose with a blast of compressed air before connecting the hose to the air
tool. This will prevent both moisture and dust inside the hose from entering the tool
and causing possible rust or malfunction.

1

Ideal system connection:

Piping diameters and length requirement:

The diameter ΦA required for the inlet pipe is recommended on the specication table.
The diameter ΦB required for the branch pipe (from to ) should be 2 times as large as ΦA.
ΦB = 2 x ΦA
The diameter ΦC required for the primary air supply (from to ) should be 3 times as large as
ΦA. ΦC = 3 x ΦA
The length for the inlet pipe should be less than 15 feet (4.5m).

2

Warning:

1. This tool should only be used as a hand operated tool. It is powered by compressed air and is not
insulated against electric shock.

2. This tool is specially designed for tightening or loosening bolts or nuts. Any application or use of this tool
other than what it is designed for is strictly prohibited.

3. Use only pneumatic impact sockets and accessories on this tool. Never use hand sockets or accessories.

4. High sound levels may cause hearing damage. Always wear hearing protection when operating this tool.

5. Wearing eye/face protection can reduce the danger of high-speed socket being ejected from the tool, due
to improper socket insertion during operation.

6. User must wear proper clothing. Loose clothing, long hair, stings, straps, belts and jewelry should not be
worn when operating this tool.

7. Before using these tools, make sure that all couplings and plugs are securely mounted. Air hoses which
are under pressure will cause a whipping action when disconnecting, this can lead to serious injury!

8. Make certain to stand on a solid or rm location and keep body in well-balanced position while operating

this tool.

9. Test run the tool to conrm the rotation direction before practical use. This will reduce the potential hazard

due to unexpected rotating direction.

10.In case of tool insert failure, always keep hands away from rotating socket to reduce the risk of being

injured, especially when working in conned spaces.

11.Always turn off the air supply and disconnect the air hose before changing socket or making adjustments
on the tool.

12.Release the throttle trigger to avoid danger if there is a failure of energy supply and when connecting or
disconnecting the air hose.

13.prolonged use will cause user fatigue. Periodic breaks are recommended for user safety.

14.It is recommended to stop operating the tool whenever the user experiences discomfort, tingling or pain
during use.

15.Beware if the compressed air hose breaks unexpectedly, or is being connected or disconnected
improperly. This whipping action may cause injury.

16.Always use caution when operating this tool to prevent injury.

17.Avoid storing this tool where it is subject to high humidity.

3

Maintenance:

1. Before connecting the air hose to this tool or after operating, apply 4 or 5 drops of

pneumatic oil into the air inlet and run it for several seconds, referring this operation to the
attached illustration

2. Maintain this tool regularly by performing the same oiling application every 3 to 4 hours of

operation.

3. Do not lubricate tools with flammable or volatile liquids. Use only the lubricant

recommended by Mighty-Seven or authorized dealers. Any other lubricant will lead to
reduce performance of the tool and permanent damage. Whenever any unauthorized
lubricant is used by accident, ush it immediately with recommended pneumatic oil.

4. Follow all the recycling laws of waste disposal once this tool is no longer usable.

Pneumatic oil

Air inlet

Regular maintenance

4

NC-4217 1/2'' 5/8'' 150-320 400 7000 4.2 90 7-1/4'' 5.6 3/8" 92.1 3.7
NC-2710 1/4'' ----- 7.4-29.5 ----- 11000 5.3 90 5-3/8'' 1.76 3/8" 91.0 3.4
NC-8242 1'' 1-9/16'' 200-2000 2500 5000 15.9 90 14-17/32'' 23.1 1/2" 100 6.4
NC-8242-8 1'' 1-9/16'' 200-2000 2500 5000 15.9 90 22-15/32'' 26.2 1/2" 100 6.4
NC-8382 1'' 1-9/16'' 200-2000 2500 5000 15.9 90 14-17/32'' 22.0 1/2" 100 6.4
NC-8382-8 1'' 1-9/16'' 200-2000 2500 5000 15.9 90 22-15/32'' 27.5 1/2" 100 6.4

Uncertainty K=0.5a if a < 5 m/s² or K=0.4a if a>5 m/s²

Niveau

Vitesse
à vide

0

N

Cons. D'air

�

moyenne

Pression

6

2

8

2

10

11

0

bar

Longueur

L

Tuyau

Poids

d'air

mm dBA m/s²

lb/kg

Référence

cond

inch mm Nm Nm R.P.M L/min bar mm kg

NC-4217 1/2'' 16 203-434 542 7000 119 6.3 184 2.5 10 92.1 3.7
NC-2710 1/4'' ---- 10-40 ---- 11000 150 6.3 136 0.8 10 91.0 3.4
NC-8242 1'' 40 271-2710 3390 5000 450 6.3 370 10.5 13 100 6.4
NC-8242-8 1'' 40 271-2710 3390 5000 450 6.3 570 11.9 13 100 6.4
NC-8382 1'' 40 271-2710 3390 5000 450 6.3 370 11.0 13 100 6.4
NC-8382-8 1'' 40 271-2710 3390 5000 450 6.3 570 12.5 13 100 6.4

Boulon

recommandé

maxi

Couple

Couple

Cap.

Carré

sonore

DBA

�

EN ISO 15744

Niveau de
vibration

Incertitude K=0.5a si a < 5m/s² ou K=0.4a si a>5m/s²

Bolzen
Größe

Empf.
Drehmoment

Drehmoment
bei Lösen

Leerlauf
Drehzahl

0

N

Luftverbrauch

Arbeitsdruck

6

2

8

2

10

11

0

bar

Gesamtlänge

L

Vierecke
Antrieb

Artikel-Nr.

inch� mm Nm Nm R.P.M L/min bar mm kg mm dBA m/s²

NC-4217 1/2'' 16 203-434 542 7000 119 6.3 184 2.5 10 92.1 3.7
NC-2710 1/4'' ---- 10-40 ---- 11000 150 6.3 136 0.8 10 91.0 3.4
NC-8242 1'' 40 271-2710 3390 5000 450 6.3 370 10.5 13 100 6.4
NC-8242-8 1'' 40 271-2710 3390 5000 450 6.3 570 11.9 13 100 6.4
NC-8382 1'' 40 271-2710 3390 5000 450 6.3 370 11.0 13 100 6.4
NC-8382-8 1'' 40 271-2710 3390 5000 450 6.3 570 12.5 13 100 6.4

Nettogewicht

lb/kg

Empf.
Luftschlauch

Schalldruckpegel

EN ISO 15744

Vibrationsniveau

Max.

Unsicherheit K = 0,5, wenn ein < 5 m/s² oder K = 0.4a, wenn a> 5 m / s²

5

Velocidad

Matriz

Capacidad
de Perno

Rango
de Torque

Cuadrada

Modelo

inch mm Nm Nm R.P.M L/min bar mm kg mm dBA m/s²

NC-4217 1/2'' 16 203-434 542 7000 119 6.3 184 2.5 10 92.1 3.7
NC-2710 1/4'' ---- 10-40 ----- 11000 150 6.3 136 0.8 10 91.0 3.4
NC-8242 1'' 40 271-2710 3390 5000 450 6.3 370 10.5 13 100 6.4
NC-8242-8 1'' 40 271-2710 3390 5000 450 6.3 570 11.9 13 100 6.4
NC-8382 1'' 40 271-2710 3390 5000 450 6.3 370 11.0 13 100 6.4
NC-8382-8 1'' 40 271-2710 3390 5000 450 6.3 570 12.5 13 100 6.4

Torque
Máximo

libre

N

0

Consumo de
Aire Promedio

Presión de
Aire

6

2

2

0

bar

8

10

11

Longitud Total

L

Peso Neto

lb/kg

Manguera
de Aire

Presión Sonora

EN ISO 15744

variable K=0.5a si a < 5 m/s² ó K=0.4a si a>5 m/s²

Diâmetro

Capacidade
do parafuso

Faixa
de Torque

kgfm kgfm

Torque
Máximo

Velocidade
Livre

R.P.M

0

N

Consumo
de Ar

L/min

Pressão de
operação

PSI

6

2

8

2

10

11

0

bar

Comprimento
Total

mm

L

Peso

kg

lb/kg

Encaixe
Quadrado

Código

polegada polegadapolegada

NC-4217 1/2'' 5/8'' 20.7 a 44.2 55.3 7000 119 90 184 2.5 3/8" 92.1 3.7
NC-2710 1/4'' ---- 1.02 a 4.08 ----- 11000 150 90 136 0.8 1/4" 91.0 3.4
NC-8242 1'' 1-9/16" 27.6 a 276.4 345.8 5000 450 90 370 10.5 1/2'' 100 6.4
NC-8242-8 1'' 1-9/16" 27.6 a 276.4 345.8 5000 450 90 570 11.9 1/2'' 100 6.4
NC-8382 1'' 1-9/16" 27.6 a 276.4 345.8 5000 450 90 370 11.0 1/2'' 100 6.4
NC-8382-8 1'' 1-9/16" 27.6 a 276.4 345.8 5000 450 90 570 12.5 1/2'' 100 6.4

interno da
mangueira

Nível
de ruído

EN ISO 15744

dBA

Incerteza K=0,05a se a < 5 m/s² ou K=0,4a se a > 5 m/s²

DBA

6

2

8

2

0

NC-4217 1/2'' 16 203-434 542 7000 119 6.3 184 2.5 10 92.1 3.7
NC-2710 1/4'' ---- 10-40 ----- 11000 150 6.3 136 0.8 10 91.0 3.4
NC-8242 1'' 40 271-2710 3390 5000 450 6.3 370 10.5 13 100 6.4
NC-8242-8 1'' 40 271-2710 3390 5000 450 6.3 570 11.9 13 100 6.4
NC-8382 1'' 40 271-2710 3390 5000 450 6.3 370 11.0 13 100 6.4
NC-8382-8 1'' 40 271-2710 3390 5000 450 6.3 570 12.5 13 100 6.4

N

0

L

10

11

bar

lb/kg

EN ISO 15744

Погрешность K=0.5a, если a < 5 m/s² или K=0.4a если a>5 m/s²

6

Nivel
de vibración

Nível de
vibração

m/s²

EC DECLARATION OF CONFORMITY

Original Language

Serial Number: Please refer to the tool

Air Impact Wrench

Item No.: NC-4217 NC-2710 NC-8242 NC-8242-8 NC-8382 NC-8382-8

We declare under our own responsibility that the above machinery fulls all the

relevant provisions of Machinery Directive 2006/42/EC and its amendment and

is manufactured and tested according to the following standards:

EN ISO 11148-6:2010 / EN ISO 15744:2008 / EN ISO 28927-2:2009

Declared in: Taichung, Taiwan
Dated:2013/01/01

Signature

Jonney Chen
Declared by: QA Manager

Manufacturer:
Mighty Seven International Co., Ltd.

No. 70-25,Ching Qunag Rd., Wu-Jih Shiang,
Taichung Hsien, 41466 Taiwan
www.mighty-seven.com

Authorized contact, to compile the technical les :

.

King Tony France

3 Rue des imprimeurs ZI République Nord 1.
86000 POITIERS FRANCE
TEL：[phone]
E-MAIL：[e-mail]

7

1/2" Air lmpact Wrench
ltem No：NC-4217

14

16

15

6

7

8

1

34

2

17

18

9

10

19

20

21

22

23

33

11

12

13

28

24

25

26

35

36

3

4

5

30

29

31

32

37

38

39

8

NC-4217

NO. INDEX NO. DESCRIPTION Q'TY

1 NC-4217S01 Screw (3pcs) 1set
2 NC-4217R02 Clutch Housing 1
3 NC-4217R03 Bushing 1
4 NC-4217R04 Front Gasket 1
5 NC-4217R05 Separator 1
6 --- Retaining Ring 1
7 --- O-Ring 1
8 NC-4217S08 Anvil Ass'y (06,07,08) 1set

9 NC-4217S09 Hammer Pin(2pcs) 1set
10 NC-4217S10 Hammer(2pcs) 1set
11 NC-4217R11 Hammer Cage 1
12 NC-4217R12 Washer 1
13 NC-4217S13 Motor Clamp Washer(2pcs) 1set
14 NC-4217R14 Cylinder Dowel 1
15 NC-4217R15 Ball Bearing 1
16 NC-4217R16 Front End Plate 1
17 NC-4217R17 Cylinder 1
18 NC-4217R18 Rotor 1
19 NC-4217S19 Rotor Balde(6pcs) 1set
20 NC-4217R20 Rear End Plate 1
21 NC-4217R21 Ball Bearing 1
22 NC-4217R22 Retainer 1
23 NC-4217R23 Rear Gasket 1
24 NC-4217R24 Motor Housing 1
25 NC-4217R25 Screw 1
26 NC-4217R26 Speed Regulator 1
28 NC-4217R28 Reverse Valve Bushing 1
29 NC-4217S29 O-Ring(2pcs) 1set
30 NC-4217R30 Reverse Valve Knob 1
31 NC-4217R31 Spring 1
32 NC-4217R32 Steel Ball 1
33 NC-4217R33 Trigger 1
34 NC-4217R34 Trrigger Retainer 1
35 NC-4217R35 Throttle Valve Seat 1
36 NC-4217R36 Valve Stem 1
37 NC-4217R37 Conical Spring 1
38 NC-4217R38 Exhaust Deector 1
39 NC-4217R39 Air Inlet Bushing 1

9

1/4" Air lmpact Wrench
ltem No：NC-2710

10

Twin Dog type

NC-2710

No Part No Description Q'ty

1 NC-2710P01 Air Inlet 1
3 NC-2710P03 Exhaust Deector 1
4 NC-2710P04 Gasket 1
5 NC-2710P05 Pin 1
6 NC-2710P06 Motor Housing 1
7 NC-2710P07 Reverse Bushing 1
8 NC-2710P08 O-Ring 1

9 NC-2710P09 Reverse Valve 1
10 NC-2710P10 O-Ring 1
11 NC-2710P11 Throttle Valve 1
12 NC-2710P12 O-Ring 1
13 NC-2710P13 O-Ring 1
14 NC-2710P14 Spring 1
15 NC-2710P15 Pin 1
16 NC-2710P16 Trigger 1
17 NC-2710P17 Ball Bearing 1
18 NC-2710P18 Gasket 1

No Part No Description Q'ty

19 NC-2710P19 Rear Eng Plate 1
20 NC-2710T20 Rotor Blade (5pcs) 1 SET
21 NC-2710P21 Rotor 1
22 NC-2710P22 Cylinder 1
23 NC-2710P23 Spring Pin 1
24 NC-2710P24 Front Plate 1
25 NC-2710P25 O-Ring 1
26 NC-2710P26 Oil Seal 1
27 NC-2710P27 Ball Bearing 1
28 NC-2710P28 Cam 1
29 NC-2710P29 Hammer Cage 1
30 NC-2710T30 Hammer Dog (2pcs) 1 SET
31 NC-2710T31 Hammer Pin (2pcs) 1 SET
32 NC-2710P32 Anvil 1
35 NC-2710P35 Washer 1
36 NC-2710P36 Hammer Case 1
37 NC-2710P37 Cover 1

11

1" Air lmpact Wrench
ltem No：NC8242 / NC8242-8

2

1

1

Inside Trigger

66

65

3

4

3

22

16

14

13

9

6

5

7

25

12

11

10

8

29
28

26

69

35

34

33

32

31

30

31

27

17

24

2

19

18

59

60

62

15

60

61

36

38

37

39

41

40

42

43

53
54
55

56

57

58

8

64

63

47

44

45

46

48

49
50

51
52

12

Twin Hammer Type

NO. INDEX NO. DESCRIPTION Q'TY

1 NC-8242T01 Screw ( 2PCS ) 1SET
2 NC-8242T02 Spring Washer ( 6PCS ) 1SET
3 NC-8242T03 Screw Wahser ( 2PCS ) 1SET
4 NC-8242P04 Seal 1
5 NC-8242P05 Hammer Case 1
6 NC-8242P06 Anvil Bushing 1
7 NC-8242P07 Side Spade Handle 1
8 NC-8242T08 Screw Wahser ( 8PCS ) 1SET

9 NC-8242P09 Hammer Washer 1
10 NC-8242P10 Socket Retainer 1
11 NC-8242P11 O-Ring 1

12 NC-8242T12
13 NC-8242T13 Hammer Pin ( 2PCS ) 1SET

14 NC-8242P14 Hammer Cage 1
15 NC-8242T15 Hammer Dog ( 2PCS ) 1SET
16 NC-8242P16 O-Ring 1
17 NC-8242T17 Motor Housing Assembly ( 17.18.19 ) 1SET
18 ---- Spring 1
19 ---- Steel Ball 1
22 NC-8242P22 Housing Protector 1
24 NC-8242T24 Lock Nut ( 4PCS ) 1SET
25 NC-8242P25 Ball Bearing 1
26 NC-8242P26 Front End Plate 1
27 NC-8242P27 Rotor 1
28 NC-8242T28 Spring ( 6PCS ) 1SET
29 NC-8242T29 Rotor Blade ( 6PCS ) 1SET
30 NC-8242P30 Cylinder 1
31 NC-8242T31 Spring Pin ( 2PCS ) 1SET
32 NC-8242P32 Rear End Plate 1
33 NC-8242P33 Spring Pin 1
34 NC-8242P34 Ball Bearing 1
35 NC-8242P35 Gasket 1
36 NC-8242T36 Trigger Handle Assembly ( 36.37.49 ) 1SET

Anvil Assembly ( 10.11.12 )
(For NC-8242-8 With 8" Extended )

1SET

NC-8242 / NC-8242-8

NO. INDEX NO. DESCRIPTION Q'TY

37 ---- Bushing 1
38 NC-8242P38 Pin 1
39 NC-8242P39 Reverse Valve 1
40 NC-8242P40 O-Ring 1
41 NC-8242P41 Spring Pin 1
42 NC-8242P42 Reverse Valve 1
43 NC-8242P43 Snap Ring 1
44 NC-8242T44 Spring Pin ( 2PCS ) 1SET
45 NC-8242P45 Spring 1
46 NC-8242P46 Steel Ball 1
47 NC-8242P47 O-Ring 1
48 NC-8242P48 Air Regulator 1
49 ---- Bushing 1
50 NC-8242P50 Valve Tappet 1
51 NC-8242P51 O-Ring 1
52 NC-8242P52 Throttle Bushing 1
53 NC-8242P53 O-Ring 1
54 NC-8242P54 Valve Stem 1
55 NC-8242P55 Nylon Ball 1
56 NC-8242P56 Spring 1
57 NC-8242P57 O-Ring 1
58 NC-8242P58 Angle Inlet Bushing 1
59 NC-8242P59 Outside Trigger 1
60 NC-8242T60 Spring Pin ( 2PCS ) 1SET
61 NC-8242P61 Plug ( For Outside Trigger ) 1
62 NC-8242P62 Spring Pin 1
63 NC-8242P63 Spring Pin 1
64 NC-8242T64 Screw Washer ( 4PCS ) 1SET
65 NC-8242P65 Inside Trigger 1
66 NC-8242P66 Plug ( For Inside Trigger ) 1

69 NC-8242T69

Anvil Assembly ( 10.11.69 )
( For NC-8242 )

1SET

13

1" Air lmpact Wrench
ltem No：NC8382 / NC8382-8

14

NO. INDEX NO. DESCRIPTION Q'TY

1 NC-8382T01 Screw ( 2PCS ) 1SET
2 NC-8382T02 Spring Washer ( 6PCS ) 1SET
3 NC-8382T03 Screw Wahser ( 2PCS ) 1SET
4 NC-8382P04 Seal 1
5 NC-8382P05 Hammer Case 1
6 NC-8382P06 Anvil Bushing 1
7 NC-8382P07 Side Spade Handle 1
8 NC-8382T08 Screw Wahser ( 8PCS ) 1SET

9 NC-8382T09 Hammer Washer ( 2PCS ) 1SET
10 NC-8382T10 Socket Retainer 1
11 NC-8382T11 O-Ring 1
16 NC-8382P16 O-Ring 1
17 NC-8382T17 Motor Housing Assembly ( 17.18.19 ) 1SET
18 ---- Spring 1
19 ---- Steel Ball 1
22 NC-8382P22 Housing Protector 1
24 NC-8382T24 Lock Nut ( 4PCS ) 1SET
25 NC-8382P25 Ball Bearing 1
26 NC-8382P26 Front End Plate 1
27 NC-8382P27 Rotor 1
28 NC-8382T28 Spring ( 6PCS ) 1SET
29 NC-8382T29 Rotor Blade ( 6PCS ) 1SET
30 NC-8382P30 Cylinder 1
31 NC-8382T31 Spring Pin ( 2PCS ) 1SET
32 NC-8382P32 Rear End Plate 1
33 NC-8382P33 Spring Pin 1
34 NC-8382P34 Ball Bearing 1
35 NC-8382P35 Gasket 1
36 NC-8382T36 Trigger Handle Assembly( 36.37.49 ) 1SET
37 - Bushing 1
38 NC-8382P38 Pin 1
39 NC-8382P39 Reverse Valve 1
40 NC-8382P40 O-Ring 1

Pin Less Type

NC-8382 / NC-8382-8

NO. INDEX NO. DESCRIPTION Q'TY

41 NC-8382P41 Spring Pin 1
42 NC-8382P42 Reverse Valve 1
43 NC-8382P43 Snap Ring 1
44 NC-8382T44 Spring Pin ( 2PCS ) 1SET
45 NC-8382P45 Spring 1
46 NC-8382P46 Steel Ball 1
47 NC-8382P47 O-Ring 1

48 NC-8382P48 Air Regulator 1
49 - Bushing 1
50 NC-8382P50 Valve Tappet 1
51 NC-8382P51 O-Ring 1
52 NC-8382P52 Throttle Bushing 1
53 NC-8382P53 O-Ring 1
54 NC-8382P54 Valve Stem 1
55 NC-8382P55 Nylon Ball 1
56 NC-8382P56 Spring 1
57 NC-8382P57 O-Ring 1
58 NC-8382P58 Angle Inlet Bushing 1
59 NC-8382P59 Outside Trigger 1
60 NC-8382T60 Spring Pin ( 2PCS ) 1SET
61 NC-8382P61 Plug ( For Outside Trigger ) 1
62 NC-8382P62 Spring Pin 1
63 NC-8382P63 Spring Pin 1
64 NC-8382T64 Screw Washer ( 4PCS ) 1SET
65 NC-8382P65 Inside Trigger 1
66 NC-8382P66 Plug ( For Inside Trigger ) 1
75 NC-8382P75 Cage Bush 1

76 NC-8382T76
77 NC-8382P77 Hammer Dog 1

78 NC-8382P78 Cam 1
79 NC-8382P79 Hammer Cage 1

80 NC-8382T80

Anvil Assembly ( 10.11.76 ) ( For
NC-8382-8 With 8" Extended )

Anvil Assembly ( 10.11.80 )
( For NC-8382 )

1SET

1SET

15

16

17