Manitowoc Q130 Specifikace stáhnout pdf (Strana 171)

Part Number 80-01111-9 7/10 171

Diagnosing Start Components

If the compressor attempts to start, or hums and trips

the overload protector, check the start components

before replacing the compressor.

CAPACITOR

Visual evidence of capacitor failure can include a

bulged terminal end or a ruptured membrane. Do not

assume a capacitor is good if no visual evidence is

present. A good test is to install a known good

substitute capacitor. Use a capacitor tester when

checking a suspect capacitor. Clip the bleed resistor

off the capacitor terminals before testing.

RELAY

The relay has a set of contacts that connect and

disconnect the start capacitor from the compressor

start winding. The contacts on the relay are normally

open. The relay senses the voltage generated by the

start winding and closes and then opens the contacts

as the compressor motor starts. The contacts remain

open until the compressor is de-energized.

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Manitowoc Q130 Specifikace Strana 171