Service Check Liste Bernina - Bernina 330 Service And Maintenance Manual

8.5.4 Service check liste BERNINA

Covers to be removed
1.
2. Parts that must be removed
3. These areas must be cleaned
Check these parts for scratch
marks, deformations, exceptional
4.
wear and/or oxidation and polish
or replace if required
5. Assembly
Oiling / lubrication according to
6.
lubrication diagram in Service
Manual
BERNINA International AG · Seestrasse 161 · CH-8266 Steckborn · Switzerland
Head cover
PCBA-Power / rear cover
Front cover
Stitch plate
CB-HOOK
Bobbin case
Hook driver
Idler pulley
Recommended parts according to Tear-and-Wear Parts Definition
Hook race / free-arm area
Needle bar / needle bar support
Thread take-up crank
Upper thread tension disks
Complete drive unit including motor
Thread redirecting guides
Thread regulator spring
Needle holder thread guide / thread redirections
CB-Hook
Bobbin case (check for thread remnants under tension spring)
Stitch plate
Presser feet
Shuttle race cover
of the removed and replaced parts
Needle bar / needle bar support
Thread take-up crank
Spherical bearing
Hook drive crank
Hook race
Idler pulley
Shafts / axes
Eccentric / cams
64