JUKI KE-3010 Maintenance Manual page 224

Replacing the suction valve and exhaust valve
1) Loosen the flat-head machine screws (M3 × 5) and remove the exhaust valve holder and
exhaust valve.
2) Wipe the pump head plate cleanly and replace the exhaust valve with a new one.
3) Pile up the pump plate and fix it on the pump head plate with flat-head machine screws
(M3 × 5) on which the screw anti-looseness agent (Loctite 242) is applied at 0.8 N m.
Exhaust
valve holder
Exhaust valve
4) Loosen the flat-head machine screws (M3 × 5) fixing the suction valve and remove the
suction valve and the flat washer.
5) Wipe the pump head cleanly and replace the suction valve with a new one. Install the
suction valve and exhaust valve so that each valve may cover the suction hole and
exhaust hole completely.
6) Pile up the flat washer and fix it on the pump head plate with flat-head machine screws
(M3 × 5) on which the screw anti-looseness agent (Loctite 242) is applied at 0.8 N m.
∗ Install the cover according to the procedure for replacing the gasket. To replace other
consumables, do not close the cover but refer to the item of replacing each portion.
Maintenance Guide
Pump head plate
Suction valve
Flat washer
10-13
Loctite application amount
• Apply it onto all the
circumferences of 2 or 3 screw
peaks at the end.
• Do not apply it onto the end
face of the screw.
Rev. 2.0