ⱥㄒ㸭(1*/,6+
If a problem occurs, check the followings. 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 the trouble-
shooting items below, and then make a note of the model number, the usage conditions and the
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.
The rivet does not
go in, or the cut
mandrel does not
come out after
riveting.
Number of triggers
operations increases
before riveting is
complete.
Rivet can not be
pulled.
Piston does not
operate, or returns
very slowly, or
operation is not
smooth.
The suction power
is weak and the cut
mandrels (shafts)
cannot be drawn
ࠉ
out.
Wrong type of Nosepiece or Guide
Tube.
Nosepiece or Frame Head ‘CJM’ is
loose.
Jaw Case is incorrectly assembled.
Contact surface between Jaws and
Jaw Case ‘Head’ are not smooth.
(friction).
The inside of the Cylinder Cup is dirty
so that the Air Piston cannot return to
its proper position.
Oil filling was not performed correctly,
so that there is excess hydraulic oil
inside the tool.
The rivet length is not correct for the
workpiece thickness.
Compressor air pressure is incorrect.
Jaw Case is incorrectly assembled.
Jaws are worn.
Insufficient hydraulic oil, causing a
shorter stroke.
Insufficient and excess pressure of
supplied air.
Malfunction of Air Piston due to dirt or
oil shortage inside the Cylinder Cup.
The Vacuum Button is not fully
pressed.
Too many cut mandrels in the tank.
Cut mandrels clog in the Guide Tube.
The Tank Case Sponge is clogging.
The Guide Tube is not applicable to
the size of rivet used.
Replace with the correct part which
matches the rivet size.
(Refer to pages 7 and 10.)
Use a spanner or similar to tighten
securely.
Check the assembly procedure of parts
inside the Jaw Case. (Refer to page 9.)
Clean the Jaws and the inside of Jaw
Case Head, and apply “LOBSTER” brand
lubricant oil to the back of Jaws.
(Refer to page 9.)
Clean inside the Cylinder Cup, and apply
grease inside the cylinder and to the
O-ring. (Refer to pages 11 and 12.)
Loosen the Bleed Plug to allow the
excess hydraulic oil to drain out. (Refer to
pages 11 and 12.)
Mandrels clog up the Jaw Pusher or
the Guide Tube.
Eliminate the mandrels clogging in the
Jaw Case or the Guide Tube.
(Refer to page 9.)
Use rivet which match the workpiece
thickness.
Check the air pressure.
Check the assembly procedure of parts
inside the Jaw Case. (Refer to page 9.)
Replace the Jaws. (Refer to page 9.)
Add hydraulic oil. (Refer to pages 11
and 12.)
Adjust to obtain an appropriate pressure of
supplied air. (Refer to page 6.)
Clean inside the Cylinder Cup and
apply grease to the inner surface and
the O-ring. (Refer to pages 11 and 12.)
Press the Vacuum Button fully from the
"ON" side.
Remove the Tank Case Unit and
discard the cut mandrels.
Remove the Guide Tube and discard
the cut mandrels. (Refer to page 9.)
Clean or replace the Tank Case Sponge.
(Refer to page 10.)
Replace with a Guide Tube applicable to
the rivet used. Remove the Guide Tube
if your rivet size is
ȭ
4.0 or
ȭ
4.8.
(Refer to pages 7 and 9.)
1
2
3
4
5
6
7
1
2
3
4
5
1
1
2
3
4
5
2
Trouble
Cause
Countermeasure
TROUBLESHOOTING
16
