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Due to continuous product development/improvement the specifications and configurations in this 

document are subject to change without prior notice.

Manufactured by :

NITTO KOHKI Co., Ltd.

2-9-4, Nakaikegami, Ohta-ku, 
Tokyo, 146-8555, Japan
TEL : 

(81)-3-3755-1111 

FAX : 

(81)-3-3753-8791

E-mail : [email protected]
URL : www.nitto-kohki.co.jp

Keep the manual handy – so you can use it whenever necessary.

PNEUMATIC NEEDLE SCALER

Please read this manual carefully before you attempt to use 
your tool so that you may use it properly and safely.

JET CHISEL

Model AJC-16, JC-16, JT-20, JEX-20, JEX-24 JEX-28, JEX-2800A

PROFESSIONAL TOOL

Original Instructions

Model 

AJC-16

Model 

JEX-20

Model 

JEX-24

Model 

JEX-28

Model 

JEX-2800A

Model 

JC-16

Model 

JT-20

Specifications

Model

AJC-16

JC-16

JT-20

JEX-20

JEX-24

JEX-28 JEX-2800A

Maximum Operating Pressure

MPa

0.6

Air Consumption (No Load)

m

3

/min

0.07

0.15

0.2

0.2

0.27

0.35

0.43

Rated Speed (No Load)

r/min (min

-1

)

6000

4000

4000

4000

4000

4500

3700

Sound Pressure Level (Load)

dB(A)

88

90

92

93

93

95

95

Sound Power Level (Load)

dB(A)

99

101

103

104

104

106

106

Vibration Level 

Uncertainty K

m/s

2

 

m/s

2

4.8 

0.97

11.5 

1.60

15.5 

2.0

9.0 

1.40

28 

3.3

17.5 

2.2

14.5 

1.90

Mass (Weight)

kg

0.98

1.4

2.4

2.75

2.7

3.5

3.3

Thread Size of Air Inlet

Rc3/8

Summary of Contents for JET CHISEL AJC-16

Page 1: ...JET CHISEL Model AJC 16 JC 16 JT 20 JEX 20 JEX 24 JEX 28 JEX 2800A PROFESSIONAL TOOL Original Instructions Model AJC 16 Model JEX 20 Model JEX 24 Model JEX 28 Model JEX 2800A Model JC 16 Model JT 20...

Page 2: ...e instrucciones en espa ol Portuguese Por favor pessa ao seo agente ou distribuidor o manual de instrucces ih linguagen local Italian Per Manuale Istruzioni in lingua locale Vi preghiamo di rivolgervi...

Page 3: ...ely tightened that any protective cover or guard is securely in place other parts are free from damage and that the tool runs as it should Check that moving parts are properly adjusted for positioning...

Page 4: ...tact the sales agent from which you have purchased your tool directly Do not detach label or nameplate from tool When a label nameplate gets damaged worn or becomes missing contact the sales agent thr...

Page 5: ...e no other tool would be feasible in narrow dif cult to reach areas extremely irregular surfaces and grooves cracks and other exterior surfaces without containers etc 2 CHECK THE CONTENTS OF THE PACKA...

Page 6: ...s too thick will reduce the performance of the tool 3 4 Short hose ttings Do not x a coupling directly on the tool Make sure that after a short hose is xed with the Hose Nipple R3 8X3 8 including in t...

Page 7: ...Band from the groove 2 Loosen the Lock Ring and remove JT 20 JEX 20 AJC 16 Fig 5 3 Take out the Needle Supporter by pulling out the Needles Fig 6 4 Extract the Needles Whenever the Needles are damaged...

Page 8: ...om the hook on the Guide Take out the Needle Guide from the tool body Fig 11 Fig 11 2 Remove the Snap Ring by pinching the projected hooks 3 Then you can take off the Needle Supporter together with ot...

Page 9: ...O D 3 800mm 50pcs TA98782 Needles O D 3 180mm 100pcs AJC 16 TA98783 Needles O D 4 180mm 50pcs JEX 28 JEX 2800A TA9A220 Needles O D 4 300mm 50pcs TA9A221 Needles O D 4 500mm 50pcs TP00338 Needle Suppor...

Page 10: ...6 Urethane Washer 30 34 6 2 10 TB08708 Cover Ass y 1set 11 TQ12689 Label Warning 1 12 TQ04563 Cylinder 1 13 TQ03427 Piston 1 14 TQ04553 End Plate 1 15 TP13275 O Ring P 16 1 16 TQ04564 Cushion 1 17 TQ0...

Page 11: ...1 6 TP00292 Lock Ring 1 7 TP11987 O Ring KS 24 1 8 TP00295 Lock Band 1 9 TB08709 Housing Sub Ass y 1set 19 TQ12611 Label Warning CE Mark 1 10 TP11986 O Ring KS 19 1 11 TP03336 Rear Washer 1 12 TB08710...

Page 12: ...TP14593 Lock Band 1 6 TA99176 Cylinder Ass y 1set 7 TP00332 Piston 1 8 TP15020 Stopper 1 9 TB08850 Cover Ass y 1set 19 TQ12995 Label Warning CE Mark 1 10 LP12795 O Ring G 30 1 11 TP15230 Valve Body 1...

Page 13: ...P14594 Spring 2 2 40 5 34 2 9 TP14595 Stopper 1 10 TB08713 Cover Sub Ass y 1set 23 TQ12611 Label Warning CE Mark 1 24 TQ12690 Label Warning 1 11 TP14599 Level Pin 2 12 LP12795 O Ring G 30 1 13 TP15229...

Page 14: ...49 Rear Washer 1 8 TB08715 Rear Bolt Ass y 1 23 TQ12687 Label Warning 1 9 TP00389 Valve Cap 1 10 TP00388 Valve Packing 1 11 TA90037 Throttle Valve Ass y 1set 12 TB00427 Throttle Lever Ass y 1set 13 TQ...

Page 15: ...1 9 TP01463 Cylinder 1 10 TP11993 O Ring AS568A 226 2 11 TP01474 Front Washer 1 12 TB08717 Rear Bolt Ass y 1set 22 TQ12688 Label Warning 1 13 TP01475 Rear Washer 1 14 TP01478 Cylinder Lock Pin 1 15 T...

Page 16: ...Anvil 1 11 TQ10241 Back UP Ring 4 12 TQ10240 Cylinder 1 13 TQ10239 Spring 3 5 44 38 2 14 TB08624 Housing Ass y A 1set 15 TQ12783 Label Warning 1 16 TQ12659 Label Name 1 17 TP08684 Hex Socket Screw 4 8...

Page 17: ......

Page 18: ...HKI CO LTD BANGKOK REPRESENTATIVE OFFICE M A Business Center 38Q House Convent Bldg 7th Floor Unit 7A Convent Rd Silom Bangrak Bangkok 10500 Thailand Tel 66 2 632 0307 Fax 66 2 632 0308 NITTO KOHKI AU...

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