1
9
Maintenance of thread path
3-1-1
5. Needle plate
a)
No burr and crack in needle hole and around it.
6. Pressure foot
a) No burr and crack inside hole
b) Not bent
7. Rotary hook
a) No burr and crack.
b) Hook point not warped.
c) Backlash between bobbin case holder and outer hook
should be less.
8. Keeper
a) No burr and crack on tip.
Surface
Reverse side
Summary of Contents for HCH-701-30
Page 1: ...Maintenance Manual for Embroidery Machine HCH 701 30 Version 2 4 HappyJapan Inc ...
Page 132: ...128 Electrical connection diagram 5 ...
Page 133: ...129 Electrical connection diagrams 5 ...
Page 134: ...130 List of electrical connection diagrams 5 ...
Page 137: ...130c HCD81222 LCD CE MX 基板組 ...
Page 138: ...130d HCD8116 TP switch board ass y 3 82 7 32 7 387487 2487 ...