Terex TS14G, Maintenance Manual

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Section 260-0130
Operators Compartment - Air Conditioning
SM 1787 Rev1 03-04
12
AIR CONDITIONING DIAGNOSIS (continued)
CONDITION PROBLEM REMEDY
3. Noise - Evaporator
Rubbing/scraping Fan blade or blower Repair or replace
Hissing Low charge/leak Correct charge/repair leak
Chatter/Knocking Air in system Evacuate and re-charge
Noisy case Loose brackets/screws Tighten
Motor squeal Dry bearings Replace
4. Air Conditioning Inadequate
After Short Period Of Operation
Cooling quits Moisture in system Replace thermostat
Thermostat Correct the charge
Clutch Check pull-in of clutch or replace
Cooling intermittent Moisture in system Replace drier
5. Electrical Trouble
Blower motor or condenser fan Defective circuit breaker or bad Replace. Clean and tighten
motor inoperable wiring connections connections
Tight motor bearing Repair or replace motor
Switch open or shorted Repair or replace switch
Slow running blower Shaft binding Replace motor - worn bearings
Wheel misaligned Replace
Bad blower switch Replace blower
Insufficient current Install larger alternator
Clutch inoperable Defective circuit breaker Replace
Loose connection Clean and tighten connection
Broken wire - ground Repair wire
Shorted or open field Replace field
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