English
Stud Gun EPK-6,5, EPK-8
OKU Tools GmbH, 70374 Stuttgart, Germany
9
EN
6 Faults and troubleshooting
When unscrewing the intermediate piece (15), it must be held tight,
because of the strong compression spring which is in the gun. If
not, it can be ejected and pose great danger.
No.
Cause
Trouble shooting
6.1 Deformed or dirty stud jammed in feeding
pipe (11) or gun head.
Unscrew union nut (16) and take the head
(22) off the gun. Now remove the jammed
stud.
6.2 Stud in feeding pipe (11) in wrong position
(with shank leading)
Remove feeding tube and shake out stud
6.3 Trigger (24) get caught
Remove O-Ring (26) and dowel pin (25) and
take the trigger (24). Clean and lubricate
trigger slightly with oil.
Check if compression spring (3) broken, if so
replace compression spring.
6.4 Worn spreader fingers (20)
Unscrew union nut (16) and take the head
(22) off the gun. Remove O-Ring (18) and
replace spreader finger (20)
6.5 Worn push rod (10)
Unscrew union nut (16) and take the head
(22) off the gun. Unscrew both hexagon
socket head cap screws (23)
(Caution!)
and
press intermediate piece (15) against trigger
(pressure of inner springs). Remove inter-
mediate piece and circlip (13). Extract push
rod (10) together with the springs (8, 9),
retaining ring (12) piston disk (6) and lip seal
(7). Unscrew hexagon nut (4) and replace
worn push rod. Assemble the gun in re-
versed order and replace hexagon nut if
necessary.
6.6 Worn separating finger (20)
Unscrew union nut (16) and take the head
(22) off the gun. Remove O-ring (18). Drive
off spring pin (19) with a drift punch until it is
possible to remove the separating finger
(17). Replace separating finger, consider
that the separating finger may not jam it
should remain movable.
