Hitachi RAF-25NH5 Instructions De Service page 6

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6) Use a three wire type soldering iron including a grounding wire.

Bare copper wire

for body earth)

Screw stop at the screwed

part using a rag plate

Use a high insulation mode

7) In checking circuits for maintenance, inspection, or some others, be careful not to have the test probes

of the measuring instrument shortcircuit a load circuit or the like.

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of Al. stainless steel, etc.)

ig.3 Grounding of the working table

soldering iron

ig.4 Grounding a solder iron

or higher) when ordinary iron is to be used.

Working table

Grounding wire