English
Stud Gun EP-8, EP-9, EP-10
6 Faults and troubleshooting
Caution!
When unscrewing the intermediate piece (17), it
must be held tight, because of the strong com-
pression spring which is in the gun. If not, it can be
ejected and pose great danger.
No.
Cause
Trouble shooting
Deformed or dirty stud jammed in feeding
pipe (13) or gun head.
Unscrew Union nut (18) and take the head
(26) off the gun. Now remove the jammed
stud.
6.1
Stud in feeding pipe (13) in wrong position
(with shank leading)
6.2
Remove feeding tube and shake out stud
Remove O-Ring (30) and dowel pin (29) and
then trigger (28). Clean and lubricate trigger
slightly with oil.
Check if compression spring (3) broken, if so
replace compression spring.
6.3 Trigger (28) get caught
Unscrew Union nut (18) and take the head
(26) off the gun. Remove spring lock (21)
and replace spreader finger (23)
6.4 Worn spreader fingers (23)
Unscrew Union nut (18) and take the head
(26) off the gun. Unscrew both hexagon
head cap screws (27)
(Caution!)
, hold the
intermediate piece (17) (pressure of inner
springs). Remove intermediate part and
circlip (15). Extract push rod (12) together
with the springs (10, 11), retaining ring (14)
piston disk (6) and lip seal (7). Unscrew
hexagon nut (4) and replace worn push rod.
Assemble the gun is reversed order and
replace hexagon nut if necessary.
6.5 Worn push rod (12)
Unscrew Union nut (18) and take the head
(26) off the gun. Remove spring lock (21),
Union nut and O-ring (19). Replace centring
finger (24).
6.6 Worn centring finger (24)
Unscrew Union nut (18) and take the head
(26) off the gun. Remove spring lock (21),
Union nut and O-ring (19). Drive off spring
pin (22) with a drift punch until it is possible
to remove the separating finger (20). Re-
place separating finger, consider that the
separating finger may not jam it should re-
main movable.
6.7 Worn separating finger (20)
OKU GmbH, 73650 Winterbach, Germany
15