Hitachi H 90SE Technical Data And Service Manual page 24

Safety precautions in wiring work (See Fig. 22.)
The Switch [43] is flexibly supported by the Support [45] to protect it from excessive vibration and extend its
service life.
The outer surfaces of lead wires are covered by Vinyl Tubes (A) [38]. The vinyl tubes are utilized to protect
the lead wires from damage. Ensure without fail that they are properly mounted during reassembly. When
reassembling the Internal Wire Holder [95], carefully ensure it is properly installed between Tail Cover [96] and
Housing Ass'y [85].
9-1-6. Insulation tests
On completion of disassembly and repair, measure the insulation resistance and dielectric strength.
Insulation resistance: 7 MΩ or more with DC 500 V Megohm Tester
Dielectric strength: AC 4000 V/1 minute, with no abnormalities
AC 2500 V/1 minute, with no abnormalities
9-1-7. No-load current value
After no-load operation for 30 minutes, the no-load current value should be as follows:
Voltage (V)
Current (A) max.
110 115
5.8 5.7
220 V --- 240 V
• • •
(and 110 V for U.K. products)
110 V --- 127 V
• • •
(except U.K. products)
120 127 220
5.5 5.3
--- 22 ---
230
3.6 3.5
240
3.4