©2018 Trane Technologies
TK 54343-18-MM-EN
Introduction
This manual is published for informational purposes only. Thermo King® makes no representations warranties express
or implied, with respect to the information recommendations and descriptions contained herein. Information provided
should not be regarded as all-inclusive or covering all contingencies. If further information is required, Thermo King
Service Department should be consulted.
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Revision History
Revision A (08/18) New format and other general updates.
Revision B
(06/2022) Updated maintenance inspection schedule and clutch air gap specification.
Revision C
(03/2023) Updated MAX units for R-452A refrigerant, see service bulletin SB874.
General Information
The maintenance information in this manual covers unit models:
V-520 10 (900829) V-520 MAX 30 (902053)
V-520 20 (900830) V-520 MAX 50 (902054)
V-520 30 (902041) V-520 SPECTRUM 10 (900834)
V-520 50 (902049) V-520 SPECTRUM 20 (900835)
V-520 MAX 10 (900831) V-520 SPECTRUM 50 (902235)
V-520 MAX 20 (900833)
For further information, refer to:
V-520 Series Operator’s Manual TK 54342
V-520 Series Parts Manual TK 53990
V-520 SPECTRUM Parts Manual TK 54016
Direct Smart Reefer Microprocessor Control System Diagnostic Manual TK 52573
V-520 Series Diagrams Manual TK 56674
V-520 Series Installation Manual TK 54014
Vehicle Powered Truck Installation Standards and Procedures
TK 56430
Vehicle Powered Truck Refrigerant Charging Procedure
TK 56392
Diagnosing Thermo King Truck and Trailer Refrigeration Systems TK 5984
Tool Catalog TK 5955
Evacuation Station Operation and Field Application
TK 40612
The information in this manual is provided to assist owners, operators and service people in the proper upkeep and maintenance of Thermo
King units.
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