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6-3
62-11863
6.3
REFRIGERATION
Excessive charging rate
Regulator leads loose, dirty/corroded terminals, or wires
broken
Defective regulator
Clean/Repair
Check
Noisy alternator
Defective or badly worn V-belt
Worn bearing(s)
Misaligned belt or pulley
Loose pulley
Replace
Tighten
6.3.1
Unit Will Not Cool
Diesel engine
Malfunction(s)
Compressor malfunction
Compressor drive defective
Compressor defective
Refrigeration system
Defrost cycle did not terminate
Abnormal pressure
Hot Gas valve malfunction
6.3.2
Unit Runs But Has Insufficient Cooling
Compressor Compressor valves defective
Unloader malfunction
Refrigeration system
Abnormal pressure
Expansion valve malfunction
No or restricted evaporator airflow
Unloader malfunction
Engine does not develop full
rpm
Engine malfunction
Excessive engine load
6.3.3
Unit Operates Long or Continuously in Cooling
Container
Hot Load
Defective box insulation or air leak
Allow time to pull
down
Correct
Refrigeration system
Abnormal pressure
Temperature controller malfunction
Compressor
Defective
6.3.4
Unit Will Not Heat or Has Insufficient Heating
Refrigeration
Abnormal pressure
Temperature controller malfunction
Hot gas valve malfunction
Compressor Compressor drive defective
Compressor defective
Engine does not develop full
rpm
Engine malfunction
Excessive engine load
Summary of Contents for SUPRA 950Mt
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Page 109: ...Figure 8 2 Electrical Schematic Wiring Diagram Sheet 2 of 2 Based on Drawing 62ï ï04104ï ïART ...
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