Repair manual

PS3 1500, PS3 2200 Repair
Repair.fm 115
6. Visually inspect the Circle Thermal Protector (CTP) for damage to
insulation materials, water or oil intrusion, heat discoloration of
bi-metal disc, or damage to bi-metal disc.
—Check to assure the lead wires of the stator windings are
correctly and securely connected to the protector.
—Check for disconnection of lead wires, short-circuit, coil-burn, or
incorrect wiring.
7. Visually inspect oil lifter (as).
—Replace if worn or broken, paying particular attention to internal
paddles.
Note: The condition of the oil lifter not only effects lubrication, but
cooling as well.
6.5.2.3 Motor Testing
Test Stator Insulation Resistance
1. Dry stator (az) thoroughly and allow it to cool before testing.
2. Measure resistance between stator’s lead wire and motor frame
using Megger tester.
—Replace stator (az) if test results fall below 20 M
Ω.
Test Stator Continuity
Test continuity between phase wire ends.
—Replace stator if any breaks are found.
Test Wire Resistance
Measure resistance of each phase using Megger tester.
—Replace stator if test results fluctuate more that ±5% of
manufacturer’s specification.
Locked Rotor Current Test
Lock rotor (an) and apply 25% of rated voltage by lock transformer or
regulator.
—Current measurement test results should be similar to rated
current.
as
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