AIR RIVETER
AR 2000S (A)AR 2000M(A)AR 2000H (A)CONTENTSIMPORTANT SAFETY
INSTRUCTIONS.................................1
NOMENCLATURE .............................5
TECHNICAL DATA ............................6
PREPARATION BEFORE USE .........7
OPERATING THE AIR RIVETER ......8
MAINTENANCE .................................9
STORAGE........................................14
TROUBLESHOOTING .....................15
AR2000S (A) PARTS TABLE ............17
AR2000M(A) PARTS TABLE ............19
AR2000H (A) PARTS TABLE ............21
Professional model of air riveter to install blind rivets.
¡ Thank you very much for purchasing “LOBSTER” air riveter. To ensure correct operation, please
read this instruction manual carefully, and keep it in a safe place for later reference.
¡ This instruction manual contains information for models AR2000S(A), AR2000M(A) and AR2000H(A).
Be sure to refer to information that is applicable to the model you are using.
¡ This is Original instructions. (Original Instruction Manual is written in English language.)
MANUFACTURER

International Marketing & Sales Division
12-8 Shijyo-cho, Higashi-Osaka City
Osaka 579-8053, Japan
Telephone: +81(72)981-7466 Telefacs: +81(72)981-9420
URL http://www.lobtex.co.jp/

PRINTED IN JAPAN

英語／ENGLISH

INSTRUCTION MANUAL

0.5 to 0.6 MPa

tWARNING

7. If using in elevated locations, use a safety harness, and take care to avoid dropping
rivets or the tool itself.

英語／ENGLISH¡Accident or injury may result if this practice is not followed.

8 Never look into the nosepiece of the tool, and never point the nosepiece toward otherpersons.

¡If the tool is used while the cut mandrels are still inside the tool not being ejected, these mandrels may
be ejected from the tool's nosepiece during use and cause serious injury.

9 Wear protective glasses during use.

¡Failure to do so may result in an accident or personal injury in case that a rivet or a piece of cut
mandrels jumps out toward you.

2

tCAUTION

英語／ENGLISH

1. Always turn off the air supply before disassembling the tool for cleaning andmaintenance purposes.
¡ If the tool is cleaned or disassembled with the air supply connected, injury may result.

2. Do not use the tool with the frame head removed.

¡ Items such as fingers may become caught in the mechanism.

3. Do not bring your face close to the air outlet holes.

¡ Pressurized air containing fine particles is discharged from the air outlet holes during use. Keep eyesaway from this area.

4. Avoid skin contact with substances such as hydraulic oil, lubricating oil and grease.

¡ Such substances may cause inflammation of the skin. If they come into contact with your skin, wash
the affected area thoroughly.

5. Make sure that the workplace is safe, clean and organized.

¡ Accidents can easily occur in untidy workplaces.
¡ If the cut mandrels are allowed to fall onto the floor, you may slip on them, and injury may result.

6. Avoid uncomfortable postures while working.
¡ You may fall down and injury may result.

7. Keep people who are not involved in work away from the workplace.
¡ Accidents or injury may result.

8. Maintain the tool with due care.

¡ Refer to the Instruction Manual for details on replacing parts and attachments, otherwise injury may occur.
¡ Keep the grip clean and dry at all times, and never let it become greasy, otherwise injury may occur
during use.

9. Use the tool carefully and concentrate on correct operation at all times.

¡ Use the tool with proper care, paying full attention to methods of handling and operation andsurrounding conditions. Accidents and injury may result if this practice is not followed.
¡ Use common sense at all times, otherwise accidents or injury may result.
¡ When you are tired, do not use the tool, otherwise accidents or injury may result.

10. Ask Lobtex to carry out any repair work required.

¡ Repair work should only be carried out by a qualified technician. Please contact your nearest“LOBSTER” distributor, representative, or direct to Lobtex Co., Ltd., Osaka. If the tool is repaired bysomeone without the necessary qualifications and experience, the tool may not perform to optimum
standards, and accidents or injury may result.

11. Do not attempt to modify the tool.

¡ Unauthorized modifications may cause malfunctions which can lead to accidents or injury.

12. Only for EU countries, do not dispose of electric tools together with household wastematerial !
¡ In observance of European Directive 2002/96/EC on waste electrical and electronic equipment andits implementation in accordance with national law, electric tools that have reached the end of theirlife must be collected separately and returned to an environmentally compatible recycling facility.

13. The parts to be used must be those supplied from us or recommended by us.
Select and attach parts applicable to your rivet.

¡ Otherwise the unit may not produce maximum performance and may sometimes malfunction
resulting in an accident or personal injury.

14. Do not leave the floor littered with cut-mandrels.

¡ Cut-mandrels are dangerous because their ends are sharp. Stepping on them is also dangerous
easily causing a slip and fall accident.

3

tCAUTION

15. The production date of this product is shown brevity code below the tools. (on page6)

英語／ENGLISH

16. Important information and clue about the use are listed in main body label. When
contents cannot read by contamination or by the damage of the label, please order a
new label and put it.
The new label could be ordered from us (Lobtex) via distributor.
17. This product is a tool for exclusive use of the professional business. When you are theone who uses this tools for the first time, please receive an instruction from the one
who have already used this tools before, also please read the Instruction Manual
carefully and understand the content.
¡ Wear protective goggles or safety glasses.
¡ When this product is damaged, please do not use.

18. For the maintenance of the main body, for every 30,000 installation of the fastener or in
one year.
19. Only qualified and trained operators should install, adjust or use the assembly power
tool for non-threaded mechanical fasteners.
20. Do not modify this assembly power tool. Modifications can reduce the effectiveness ofsafety measures and increase the risks to the operator.
21. Slips, trips and falls are major causes of workplace injury. Be aware of slippery
surfaces caused by use of the tool and also of trip hazards caused by the air line or
hydraulic hose.
22. Proceed with care in unfamiliar surroundings. There can be hidden hazards, such as
electricity or other utility lines.
23. This assembly power tool is not intended for use in potentially explosive atmospheresand is not insulated against contact with electric power.
24. Ensure that there are no electrical cables, gas pipes, etc., which can cause a hazard if
damaged by use of the tool.
25. If you experience numbness, tingling, pain or whitening of the skin in your fingers or
hands, stop using the assembly power tool, tell your employer and consult aphysician.
26. Air under pressure can cause severe injury:¡ always shut off air supply, drain hose of air pressure and disconnect tool from air supply when not inuse, before changing accessories or when making repairs;¡ never direct air at yourself or anyone else.

27. Whipping hoses can cause severe injury. Always check for damaged or loose hoses
and fittings.
28. Never carry an air tool by the hose.
29. The regular preventative maintenance shall be carried out, for instance after a
specified time of operation, a specified number of cycles/operations or a statednumber of times per year.
30. When disposing this tool, please follow the regulations and the rules of the country
and autonomous community.

4

NOMENCLATURE
英語／ENGLISH

FRAME CAPBLEED PLUG

FRAME HEADNOSEPIECE

SWITCHSAFETY CAPFRAMEAIR OUTLET HOLECYLINDER

THREADS G1/4
(PF1/4)
CHANGE PLUG

CHANGE PLUGROTARY JOINT UNIT

FRAME HEAD INTERNAL PARTS
AR2000S(A)AR2000M(A)(A)
AR2000M

Jaw case lock nut

O-ring P-10

Lock washer

Jaw �
Jaw pusher
pusher �
springJaws ‘S’� Jaw case

AR2000H(A)Jaw �pusher �
spring ‘H’�

5

Jaw �
Jaws ‘H’� Jaw �
pusher ‘H’�
case �
head ‘H’�

Jaw � Jaw
Jaw pusher
pusher� JawsJaws‘M’� ‘M’
Jaw Jaw
casecase
head�
head
Jaw
pusher �
pusherspring�spring0.5 ~ 0.6 MPa (71 ~ 85 psi.)

0.6 MPa0.5~ 0.6 MPa

0.55 ~ 0.6 MPa

OPERATING THE AIR RIVETER
英語／ENGLISH

1 Select a rivet of a size which is suitable for the workpiece to be riveted.
2 Replace the nosepiece with one which matches the size of the rivet to be used.
(Refer to item 5 in “Preparation Before Use” on page 7.)a hole of appropriate size (0.1 to 0.2 mm larger than the
3 Drill
diameter of the rivet) into the workpiece.

4 Insert the rivet into the hole.

ATTENTION:

Some rivets have mandrels with sharp ends.
Be careful not to injure your fingers on these ends.

5 Place the nosepiece of the air riveter over the mandrel of the rivet.

press the nosepiece of the air riveter against the
6 Gently
workpiece. After checking that there is no gap between thenosepiece and the workpiece, press the switch.

A When you pull the switch or during the keeping pull position, you may find alittle air leak from the point of this switch. This is not the defective of thequality but the normal condition.

7 The rivet will be set into the workpiece.

Release the switch, and then tilt the air riveter to remove the cut mandrel from the
8 nosepieceor safety cap.

NOTE: Make sure that the cut mandrel has been completely removed before proceeding to the next riveting.

＜Operating temperature＞

The ambient temperature for working is within the range of 4° ~ 35°C (40° ~ 95°F).

8After long periods of use, debris from rivet cut mandrels and other foreign materials tend to build up in
various parts of the tool, and the hydraulic oil level also drops, both of which can lead to operatingproblems. The tool should be cleaned periodically.

tWARNING

In case you have some trouble and failure, please refer “Troubleshooting” in theInstruction Manual.

1 Jaw maintenance Also refer to this section when replacing parts.
◎ If debris builds up, the jaws will not move smoothly and normal operation will not be possible.
◎ The jaws should be cleaned on average once every 3,000 riveting operations.

1Turn off the air supply.

tCAUTION 1 (P.3)

Use a spanner or similar tool to remove thetCAUTION 2 (P.3)

DISASSEMBLY

2 frame head.

3 AR2000S
Use a spanner or similar tool to loosen and remove

Jaw case �lock nut Lock washer

AR2000S(A)(A)

the jaw case, and then remove the jaw pusher spring,jaw pusher and jaws.

Jaw �
pusher �Jaw pusher Jaws Jaw casespring

AR2000M(A)/AR2000H(A)Pull backwards the jaw case collar to loosen andremove the jaw case head, and then remove the jaw
pusher spring,
spring, jaw
jaw pusher,
pusher andjaws.
pusherO-ringand jaws.

AR2000M/AR2000H(A)AR2000M(A)(A)/AR2000H(A)
O-ring P-10(＊)

Jaw case collar
Jaw case headJaw pusher
pusher Jaws
Jaws
Jaw
Jaw
Jaw pusher
pusherspringspringJaw
Jaw case
case
head
head

＊O-ring is included only in AR2000M(A).

CLEANING

英語／ENGLISH

MAINTENANCE

9

4

Use a brush or similar to clean all parts.

(A)in reverse. Install the jaw case so that its distancematches those shown in the illustration at right.

＜Jaw case setting position＞
AR2000S(A)61

AR2000M(A)/AR2000H(A)Reassemble by following the disassembly procedure in
reverse. Tighten the jaw case head fully, and then turnit back so that the notch is aligned with the tab on thejaw case collar, and move the collar into place.

A Apply “LOBSTER” brand jaw lube (sold separately)to the backs of the jaws.

Apply jaw lube �(lubricating oil)

Align the notch

英語／ENGLISH

5 AR2000S
Reassemble by following the disassembly procedure

RE-ASSEMBLY

Lower the jaw case collar

NOTE:¡ When re-assembling, be sure to apply a lubricant
such as grease to all moving and sliding parts.

＜Jaw case setting position＞
AR2000M(A)61¡ Be careful not to leave out any parts, and tighten all
connections securely.

¡ The jaws are consumable parts, and they should be
replaced periodically.
¡ In the case of the AR2000M(A) and AR2000H(A), thejaw case and jaw case lock nut do not need to be
removed during maintenance. If they are removedby mistake, replace them so that the distancematches those shown in the illustration at right.

AR2000H(A)81

102 Cleaning and filling the cylinder◎ If foreign materials build up in the cylinder, it will not operate smoothly and service life will be reduced.

英語／ENGLISH

1

Frame head

Turn off the air supply.
tCAUTION 1 (P.3)

a spanner or similar tool to remove
2 Use
the frame head.

DISASSEMBLYt WARNING 3 (P.1)

Be sure to remove the frame head when
adding hydraulic oil through the cylinder.

Tapping screw
Cylinder top

a Phillips screwdriver to remove
3 Use
the four tapping screws on the cylinder
top, and then separate the cylinder andthe frame.
A Hold the frame vertical, as the hydraulic oil
will spill out if it is tipped sideways.

Cylinder cup
Air piston

4

Hold the frame upside down
and pull the air piston out fromthe cylinder top.

Cylinder cover

A Air Piston may remain inside Cylinder cup.

CLEANING

5

Remove the cylinder cup fromthe cylinder cover.

Cylinder top

Muffler

Use a rag, brush or similar to clean all

6 parts.

FILLING OIL

Cylinder top

7

Fill with hydraulic oil until just before theoil starts running out from the filling hole.

Oil filling hole

Apply grease to the inside of the cylinder

RE-ASSEMBLY

8 cup and to the O-ring and rod of the11piston.

Apply �greaseApply grease

Cylinder cup
Air piston
Apply grease

Put the cylinder cup back in the cylinder
9 cover.

the air piston back inside the cylinder
10 Putcup.

Air piston

10-1

10-2

the air cylinder containing the air piston
11 Puttogether with the cylinder top. Hold themdown while fastening the four tapping
screws.

英語／ENGLISH

A At that time, the air piston is susceptible to falling
inside the cylinder cup. Carefully press the air
piston straight to the bottom. (10-1)
If the piston inclines, remove it and then press it
again. Do not forcibly press the inclining piston.
(10-2)

Air cylinder

RE-ASSEMBLY

Cylinder top

Tapping screw

all parts have been reassembled but
12 Afterbefore the frame head has been re-attached,

Bleed plug

hold the tool so that the bleed plug (hexagon
socket head cap screw) is facing directly
upward, and use the accessory hex key
wrench to loosen the bleed plug to drain any
excess oil. After checking that no more oil iscoming out, re-tighten the bleed plug.
A Be careful when loosening the bleed plug, as thehydraulic oil may spurt out strongly.

away any oil outside the tool and clean
13 Wipeup any spilt oil before using the tool.
tCAUTION 4 (P.3)

tCAUTION 8 (P.3)

After checking the jaw case setting position,
14 install
the frame head. (Refer to pages 9.)
NOTE:¡ Be careful not to allow any debris or other foreign materials get into the hydraulic oil or the cylinder during
disassembly and re-assembly.

¡ The hydraulic oil should be changed on average once every 500,000riveting operation.

12

1
DISASSEMBLY

英語／ENGLISH

3 Cleaning the spool
Turn off the air supply.
tCAUTION 1 (P.3)

a spanner or similar tool to
2 Use
remove the change plugs at thefront and back.

a plastic screwdriver or similar
3 Use
to push out the spool from the rear
hole.

Front

Rear

Change plugs
Rear

RE-ASSEMBLY

CLEANING

Spool

13

Use a brush or similar to clean all

4 parts. Check the spool thoroughly
to ensure that none of the small
holes in the spool are blocked.

Check for any blocked holes

Reassemble by following the

5 disassembly procedure in reverse.

A Apply grease to the O-ring of the spool
before reassembly.
A The front and rear change plugs andthe change plug of the air hoseconnector (refer to page 5) have thesame shape, so be careful not to
confuse them.

4 Adding oil◎ Oil addition should always be carried out by following the simple procedure given below.

DISASSEMBLY

hex key
Use thethe accessory
accessory hex
key wrench
wrench toto remove
remove2 Usethewasher,and attach
the bleed
bleed plug
plug,andandsealattachthe priming
pump

ADDING OIL

3 A When enough hydraulic oil has been added, the

RE-ASSEMBLY

tCAUTION 1 (P.3)

4theprimingpump(syringe(syringeunit)
to thehole. unit) to the hole.
A Make sure that the priming pump contains thenecessary amount of oil beforehand.

A If you hold the main body of the priming pumpwhile tightening, the pump may become damaged.
Use pliers to hold the nozzle of priming pump whiletightening.

PistonPriming pump �(syringe unit)
Nozzle

英語／ENGLISH

1 Turn off the air supply.

Seal washer
Bleed plug

Gently depress the piston of the priming pump.
piston will become hard to push. Stop adding oil at
this point.

Install thethe bleed
bleed plug
plug.and seal washer.
Install

STORAGE¡ Store in a place which is well-ventilated and free from excessive dust and humidity, and where there
is no danger that the tool will fall.
¡ If not using the tool for an extended period of time, carry out a maintenance inspection before storing
it away.
¡ To increase the working life of the tool, it is recommended that you give it periodic overhauls. Contact
the place of purchase or your nearest “LOBSTER” dealer for any overhauls and repair work required.
(A charge will be made for this service.)

14英語／ENGLISH

TROUBLESHOOTING
If a problem occurs, check the following.
If the problem persists after checking the items in the table below, contact your nearest “LOBSTER”
dealer or direct to us.
In making any enquiries about this product or requests for repair work, first check thetroubleshooting items below, and then make a note of the model number, the usage conditions andthe trouble symptoms in as much detail as possible. If you can provide this kind of information, it
will contribute to reducing the amount of time required for delivery or repairs to be completed.
TroubleCause

Countermeasure

The rivet does not go 1
in, or the cut mandrel
2
does not come out
after riveting.
3

Incorrect combination of replacement parts
being used.

Replace with the correct part which matches
the rivet size. (Refer to page 7.)

Nosepiece or frame head is loose.

Use a spanner or similar to tighten securely.

Jaw case is incorrectly assembled.

Check the jaw case setting position. (Refer topages 9 and 10.)

4

Contact surfaces between the jaws and thejaw case head are not smooth.

Clean the jaws and inside the jaw case head,
and apply “LOBSTER” brand jaw lube (orspray-type lubricating oil or the accessory
hydraulic oil) to the backs of the jaws. (Referto pages 9 and 10.)

5

The inside of the cylinder is dirty so that the
air piston cannot return to its proper position.

Clean inside the cylinder, and apply grease
inside the cylinder and to the O-ring. (Refer topages 11 and 12.)

6

Oil filling was not performed correctly, so that
there is excess hydraulic oil inside the tool.

Loosen the bleed plug to allow the excess
hydraulic oil to drain out. (Refer to page 12.)

1

The rivet length is not correct for the
workpiece thickness.

Use rivets which match the workpiece
thickness.

Compressor air pressure is incorrect.

Check the air pressure.

Jaw case is incorrectly assembled.

Check the jaw case setting position. (Refer topage 10.)

4

Jaws are worn.

Replace the jaws. (Refer to page 9.)5Insufficient hydraulic oil, causing a shorter
stroke.

Add hydraulic oil. (Refer to page 14.)

1

Spool is not moving properly.

Number of switch
operations increases
before riveting iscomplete.

Piston does notoperate, or returns
very slowly, or
operation is not
smooth.

2
3

2
3

II

Clean the spool and apply grease to the Orings. (Refer to page 13.)

Air outlet hole muffler is blocked.

Replace the muffler. (Refer to pages 11 and 12.)The inside of the cylinder is dirty so that the
air piston cannot return to its proper position.

Clean inside the cylinder, and apply grease
inside the cylinder and to the O-ring. (Refer topages 11 and 12.)ULTRA JAWS (AR2000M(A)/AR2000H(A))
The AR2000M(A) and AR2000H(A) use ultra jaws whichhave greater durability. Be sure to specify “Ultra jaws
M” (AR2000M(A)) or “Ultra jaws H” (AR2000H(A)) as
replacement parts for these models.

HYDRAULIC OIL REQUIREMENTS
Use only clean hydraulic oil, as the viscosity of the oil used willaffect tool performance.

15

I

Remove the rear part of changeplug (referto page 13) and push the spool 2~3mm
with a plastic (soft) stick. In case of no
improvement, take the II measure.

“LOBSTER” brand Hydraulic Oil is supplied in a plastic filler
bottle with the tool, and can also be obtained from your “Lobster”
dealer or agent in your town. If this is not possible, a good quality
mineral oil with the following properties should also be used.
Viscosity ISO
Viscosity Index
Viscosity at 40°C
Viscosity at 100°C
Flash Point: VG46: 113: 46 c.s.t.
: 7.06 c.s.t.
: 228

RECOMMENDED OILS are:Shell Tellus No. 46
Esso Teresso No. 46
Mobil D.T.E. 25 Oil (Medium)英語／ENGLISH

16

b

33

36

35

34

8

12

11

a

9

13

14

1-B

15

2

37

16

16

17

16

17 16

3

18

4

38

19

5

6

19

20

21

39

22

24

23

40

25

47

44

43

31
45

a

26

40

27

46

b

40

40

54

60

62

55

58
62

55

74

59

54

50

c

70
72

56

75
53

55

73

52

55

54

51

71

69

c

50

71

49

48

62

76

Seal washer
Sealing
Washer76

Warning label

61075

1-B
1-B

19

11 12

15

2

36

14

16

39

38

37

a
a

3

19

4

40

20 19

5

19

20

19

21

6
55

76

87

22

41

98

23

9

24

25

27

28

42

26

43

50

47

46

29

48

a
a

30

43

49

34

43

57

63

65

62

57

61

58

78

65

58

53

53

c
c

75

73

59

56

58

77

55

76

72

c
c

58

57

54

74
74

52

51

英語／ENGLISH

65
65

79

AR2000M(A) PARTS TABLE

Seal
washerSealing
Washer79

Warning label

61075

21

b

35

11

1-A
1-A

38

37

36

12

15

a

14

13

16

17

2

18

3

39

19

4

19

20

19

20

5

19

6

21

7

40

22

8

22

9

23

24

25

27

41

28

42

26

50

46

45

47
48

a

29

42

30

49

b

42

42

57

63

65

62

57

77

57 65

c

77

65

c

75
75

58

58

57

54

72

c

72

c

58

57

54

78
53

65
58

55

53

52

51

74
74
74
74
76
76

55

73

59

56

73

56
58

59
61

58

58

53

61

62
58

65

63

57

53

52

51

英語／ENGLISH

65

AR2000H(A) PARTS TABLE

Seal washer
Sealing
Washer78

Warning label

61075

WARRANTY & SERVICELOBSTER ® WARRANTS THAT GOODS COVERED BY THISMANUAL WILL CONFORM TO APPLICABLE SPECIFICATIONSAND DRAWINGS AND THAT SUCH GOODS WILL BE
MANUFACTURED AND INSPECTED ACCORDING TO
GENERALLY ACCEPTED PRACTICES OF COMPANIESMANUFACTUR ING INDUSTRIAL TOOLS. THERE ARE NO
WARRANTIES WHICH EXTEND BEYOND THE FOREGOING.
THE LIABILITY OF LOBSTER ® ON PARTS FOUND TO BE
DEFECTIVE IS LIMITED TO RE-WORK OR THE REPLACEMENTOF SUCH GOODS AND IN NO CASE TO EXCEED THE INVOICEVALUE OF THE SAID GOODS. UNDER NO CIRCUMSTANCESWILL LOBSTER ® BE LIABLE FOR DAMAGES OR COSTSINCURRED BY THE BUYER OR SUBSEQUENT USER IN REPAIRING OR REPLACING DEFECTIVE GOODS.
ROUTINE MAINTENANCE AND REPAIR OF LOBSTER ® RIVETTOOLS CAN BE PERFORMED BY AN AVERAGE MECHANIC.
HOWEVER, IF YOU HAVE A LOBSTER® RIVET TOOL THAT IS IN
NEED OF MAJOR REPAIR WE RECOMMEND THAT IT BE SENTDIRECTLY TO US POSTAGE PAID FOR SERVICE AT A
REASONABLE CHARGES.

MANUFACTUREROSAKA, JAPAN