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7. ADJUSTMENTS
RH-9820
143
7-3. Adjusting the zigzag base line position
Preparing a short customized needle
Prepare a short needle as described below in order to make very small holes in a piece of paper while checking the needle drop
position.
1. Use a grinder or similar to grind the tip of the
currently-used needle until the length of the needle is 15
mm.
2. Sharpen the tip of the needle.
NOTE:
Sharpen the needle so that the tip of the needle is in the
middle.
3. Place a piece of paper (1) underneath the work clamps.
4. Turn the upper shaft pulley (2) to set the needle to its
lowest position.
5. Move the needle up or down to adjust the installation
position of the needle so that the tip of the needle makes a
hole with a width of about 0.5 mm in the paper (1) when
the needle comes to the needle down position.
Hole width approx. 0.5 mm
0564B
Sharpen tip
0563B
middle
middle
Содержание RH-9820
Страница 7: ...RH 9820 v Belt cover Rear 0331B 0332B 0334B 0486B 0485B 0333B ...
Страница 46: ...4 MECHANICAL DESCRIPTIONS RH 9820 37 ...
Страница 58: ...5 DISASSEMBLY RH 9820 49 5 10 Lubrication 1089B ...
Страница 124: ...6 ASSEMBLY RH 9820 115 6 19 Covers 1064B ...
Страница 210: ...8 ELECTRICAL MECHANISM 201 RH 9820 PMD P C board Power supply motor P C board 0693B 4593Q ...
Страница 211: ...8 ELECTRICAL MECHANISM 202 RH 9820 Panel P C board 0694B ...
Страница 217: ...8 ELECTRICAL MECHANISM 208 RH 9820 0761B ...
Страница 218: ...8 ELECTRICAL MECHANISM 209 RH 9820 0762B ...
Страница 236: ...SERVICE MANUAL RH 9820 I6100920B 2007 03 B 1 Printed in Japan ...