Insulation Tests; No-Load Current Value - Hitachi P 20SF Service Manual

• Flatness of base -------------------------------------- Within 0.1 mm (of Front Base [24] and Rear Base [68])
• Parallelism of base ----------------------------------- Within 0.3 mm (as based on Rear Base [68])
Upon completing disassembly and repair, measure the insulation resistance and conduct a dielectric
strength test.
After no-load operation for 30 minutes, the no-load current values should be as follows:
Voltage (V)
Current (A) max.
Product accuracy

Insulation tests

No-load current value

110 120
2.3 to 3.1 2.2 to 3.0
220
1.3 to 1.9
-5-
230 240
1.0 to 1.5 1.0 to 1.5