308C CR, 314C CR and 321C CR Excavators Air Conditioning and Heating Caterpillar


Air Conditioning System Troubleshooting - Guide for Actuators

Usage:

321C KCR

Air Mix Door




Illustration 1g01285300

Schematic

(1) Control Unit

(2) Connector

(3) Heat to Cool wire

(4) Cool to Heat wire

(5) Connector

(6) Air Mix Door

(7) Connector

(8) Ground wire

(9) Limiter

(10) 5 V wire

(11) Potentiometer

If the air mix door does not operate, see "The Air Mix Door does not Operate".

The Air Mix Door does not Operate




Illustration 2g01286747

Air Mode Door




Illustration 3g01285432

Schematic

(1) Control Unit

(2) Connector

(3) Vent to Defrost

(4) Limiter

(5) Defrost to Foot

(6) Ground

(7) Potentiometer

(8) Connector

(9) Air Mode Door

(10) Connector

(11) 5 V wire

If the air mode door does not operate, see "The Air Mode Door does not Operate".

The Air Mode Door does not Operate




Illustration 4g01286762

Inner/Outer Air Door




Illustration 5g01285570

Schematic

(1) Control Unit

(2) Connector

(3) Inner Air

(4) Limiter

(5) Outer Air

(6) Connector

(7) Inner/Outer Air Door

(8) Connector

If the inner/outer air door does not operate, see "The Inner/Outer Air Door does not Operate".

The Inner/Outer Air Door does not Operate




Illustration 6g01286765

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