EN
Instruction Manual
HydroPneumatic tool for rivet nuts from M3 to M12
with oil pressure adjustment
FASTSETM12
146
www.kvt-fastening.ch
C
AUSE
R
EMEDY
The transition time from stroke
to unscrewing slows.
Open the manostat and pull the piston out (
G
),
grease it and reassemble it.
Air leaks from muffler (
T
).
Check the two O-rings (
O4
) and O-ring (
21
Code
3235600
)
which could be worn or broken.
MOTOR screwing
-
When the rotating pin (
6
Code
4151500
) is broken and you replace it, it may happen that the motor
rotates continuously, which means that the shaft
(
13
Code
3761300
) is too long; in this case it will have
to be shortened by a few tenths to obtain the closure
of the ball (
14
Code
3096900
).
-
Unlike the situation above, the shaft is too short and it has to
be replaced with a new one, fitting it without end float, with the
air on, in order to obtain the closure of the ball (14 Code
3096900
).
Quick kit assembly.
When assembling the quick kit (code
4176900
), with air, make sure
to create an axial space of
1.5mm
between the lock nut and the end
of the piston.
Loss of revolution or stopping
during unscrewing.
When you are working intensely there is likely to be a loss of
revolutions or a stop when unscrewing; it is necessary to remove the
air hose and add a few drops of oil in the air hose connection (Ref.
34
)
and re-enter the air by turning the engine with button (
P
) for a couple
of minutes, so the engine cleans and lubricants.
Air leaks from air distributor.
In case of loss of air from the air distributor, the plate of the piston is broken.
P
T
O4
21
1,5 mm
G