Enviro PILATUS PC12 User Manual

Component Maintenance Manual
12037 N Highway 99
Seminole, OK 74868
Phone (405) 382-0731
Fax (405) 382-0737
http://www.enviro-ok.com
Copyright © 2017
Original Release
ATA 21-00-23
January 2008
OPERATING, SERVICING, AND COMPONENT
MAINTENANCE MANUAL
WITH ILLUSTRATED PARTS LIST
PILATUS PC12
R-134a AIR CONDITIONING SYSTEM COMPONENTS:
1) COMPRESSOR CONDENSER MODULE ASSEMBLY, PART # 1134400-53
(Supersedes 1134400-13, 1134400-56), 1134400-59
2) EVAPORATOR MODULE ASSEMBLY, PART # 1134200-60 (L) /-61 (R) /-63 (C)
(Supersedes 1134200-42, L /-43. C&R)
ATA SPECIFICATION 21-00-23

Enviro PILATUS PC12 Specifications

General

Airflow Capacity	Not Available
Noise Level	Not Available
Power Source	Not Available
Voltage	Not Available
Material	Not Available
Dimensions	Not Available
Weight	Not Available

Summary

Introduction

General Introduction (How to Use)

Explains manual usage, structure, and safety notes.

Acronyms, Abbreviations, and Symbols

Defines terms, acronyms, and symbols used in the manual.

Standard Torque Values

Lists standard torque specifications for fasteners used in the system.

Documents Required

Lists necessary documentation for performing maintenance procedures.

Consumable Products

Lists required consumable products for system maintenance.

Description and Operation

General

Provides a general overview of the air conditioning system's purpose.

System Description and Operation

Details the vapor cycle concept and how the R-134A system functions.

System Component Description and Operation

Describes major system components like compressor and evaporator modules.

Testing and Fault Isolation

General

Introduces the necessity of testing and fault diagnosis.

Compressor Condenser Module Assembly Testing Procedures

Outlines procedures for testing the compressor condenser module.

Evaporator Module Assembly Testing Procedures

Outlines procedures for testing the evaporator module assembly.

System Leak Check Testing Procedure

Details the process for performing a refrigerant system leak check.

Fault Isolation (Trouble Shooting)

Provides a guide for diagnosing and resolving system failures and abnormal operations.

Schematic and Wiring Diagrams

R-134A Refrigerant Flow Schematic

Illustrates the flow of refrigerant through the air conditioning system.

Disassembly

General

Provides general safety and contamination prevention guidelines for disassembly.

Compressor Condenser Module Disassembly Procedures

Step-by-step instructions for disassembling the compressor condenser module.

Evaporator Module Assembly Disassembly Procedures

Step-by-step instructions for disassembling the evaporator module assembly.

Cleaning

General

General safety precautions and procedures for cleaning components.

Compressor Condenser Module Cleaning Procedures

Procedures for cleaning the compressor condenser module assembly.

Evaporator Module Assembly Cleaning Procedures

Procedures for cleaning the evaporator module assembly.

Check (Inspection Schedule)

Compressor Condenser Module Assembly Inspection Schedule

Recommended visual inspection schedule for the compressor condenser module.

Evaporator Module Assembly Inspection Schedule

Recommended visual inspection schedule for the evaporator module assembly.

Repairs

General

General guidelines and safety precautions for repair procedures.

Compressor Condenser Module Repair Procedures

Procedures for repairing or replacing components of the compressor condenser module.

Evaporator Module Assembly Repair Procedures

Procedures for repairing or replacing components of the evaporator module assembly.

Assembly

General

General guidelines and safety precautions for assembly procedures.

Compressor Condenser Module Assembly Procedures

Step-by-step instructions for assembling the compressor condenser module.

Evaporator Module Assembly Procedures

Step-by-step instructions for assembling the evaporator module assembly.

Special Tools, Fixtures, and Equipment

General

Lists necessary tools and test equipment for maintenance and repair.

Illustrated Parts List

Introduction

Explains the purpose and use of the Illustrated Parts Listing (IPL).

Special Procedures

Expansion Valve Alignment

Procedures for adjusting the expansion valve for proper refrigerant flow.

Balancing Multiple Evaporators

Procedures for balancing refrigerant flow between multiple evaporator modules.

Motor Insulation Resistance Check

Procedure to check motor insulation resistance for proper operation.

Motor Bearing Inspection

Procedure to inspect motor bearings for signs of wear or damage.

Compressor Bearing Inspection

Procedure to inspect compressor bearings for signs of wear or damage.

Compressor Oil Level Check

Procedure for checking and adding compressor oil if needed.

Servicing

General

General safety and handling precautions for refrigerant servicing.

Evacuating the System (R-134A)

Procedure for evacuating air and moisture from the R-134A system.

Charging the System (R-134A)

Procedure for charging the R-134A system with the correct refrigerant amount.

Flushing The System (R-134A)

Procedure for flushing the system after component failure or contamination.

Storage

General

General requirements for storing compressor assemblies.

System Long Term Shelf Storage

Procedures for long-term storage of the compressor assembly.

System Off-Season/On-Aircraft Functional Tests

Functional tests required for off-season or on-aircraft storage.

General System Component Storage Procedures

General procedures for storing system components to prevent damage.