30
Problems
Mandrel is not sucked
Air bubbles in the hydraulic
system
Stroke is too short
Loss of hydraulic oil due to
leakage
Safety valve gets blown off
Excessive loss of oil from
riveting tool
Cause
Supply of compressed air is too rare
X-value is too low
Safety valve gets blown off
Safety valve is not tight
Safety valve is defective
O-ring (19) is defect
Oil level is too low
Not bled correctly
O-ring is leaking
Oil level is too low
X-value is too low
Riveting tool is defective
Compressed air pressure is too high
Valve is defective
Leaking and worn out O-rings inside
the riveting tool
Solution
(
O
) Check supply of compressed air
(
O
) Set the compressed air setting on the maintenance unit
at 6 bar
(
P
) If operating pressure is OK, deliver riveting tool from
overhaul
(
O
) Reset the value of X (see “Adjusting the jaw case body”)
(
O
) Check the setting of compressed air
(
O
) Tighten the safety valve
(
O
) Replace safety valve
(
P
) Insert new O-ring
(
O
) Check oil level and fill up
(
O
) Bleed the hydraulic unit (see page 20 “Maintaining the
riveting tool”), change the O-ring if required
(
P
) Deliver riveting tool from overhaul
(
O
) Check oil level and fill up
(
O
) Reset the value of X (see page 24 “Adjusting the jaw case
body”)
(
P
) Deliver riveting tool from overhaul
(
O
) Check and adjust compressed air setting
(
O
) Replace safety valve
(
P
) Withdraw the riveting tool from the work-routine, and
order an overhaul
Trouble shooting
