JLG 1230ES Service Manual - Manual (Page 156)

SECTION 9 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
9-2 – JLG Lift – 3121222
Voltage Measurement Resistance Measurement
Figure 9-1. Voltage Measurement (DC) Figure 9-2. Resistance Measurement
• If meter is not auto ranging, set it to the correct range
(See multimeter’s operation manual)
• Use firm contact with meter leads
• First test meter and leads by touching leads together.
Resistance should read a short circuit (very low resis-
tance)
• Circuit power must be turned OFF before testing
resistance
• Disconnect component from circuit before testing
• If meter is not auto ranging, set it to the correct range
(See multimeter’s operation manual)
• Use firm contact with meter leads