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4322
Service Manual
ii
3
Calibration and Alignment .................................................................. 3-1
Introduction ........................................................................................................ 3-3
Fundamentals ..................................................................................................... 3-3
Required Equipment .......................................................................................... 3-4
Environmental Conditions ................................................................................. 3-4
Equipment Setup ................................................................................................ 3-5
Preliminary Operations ...................................................................................... 3-5
Module Calibration Procedure ........................................................................... 3-7
Module Alignment Procedure ............................................................................ 3-8
4 Controller
Maintenance.......................................................................
4-1
Introduction ........................................................................................................ 4-3
Safety ................................................................................................................. 4-3
Standard Torque Look-Up Table ....................................................................... 4-3
Maintenance Procedures .................................................................................... 4-4
Event Log ...................................................................................................... 4-4
Front-Panel and Case Cleaning ..................................................................... 4-4
Pressure Leakage Test ................................................................................... 4-5
Pressure Generation Test (On-Board Motor) ................................................ 4-6
Fuse Replacement .......................................................................................... 4-7
Controller Part Replacement .............................................................................. 4-9
Chassis ........................................................................................................... 4-9
Control Panel Separation ............................................................................... 4-10
Pump Bracket ................................................................................................ 4-15
Manifold ........................................................................................................ 4-17
Display ........................................................................................................... 4-20
Keypad, Encoder, or Encoder Wheel ............................................................ 4-21
Communications Box .................................................................................... 4-22
Pressure Transducers and Barometer ............................................................ 4-24
Contamination Prevention System (CPS) ...................................................... 4-26
Fine and Coarse CPS Filters (Internal) ..................................................... 4-26
CPS Vent Filter (External) ........................................................................ 4-26
CPS Dock and NC Isolation Valve ........................................................... 4-27
Piston Pump Head Solenoid Assembly ......................................................... 4-29
Piston Pump Head Clippard Valves .............................................................. 4-29
Piston Seal ..................................................................................................... 4-31
Piston Pump Seal ........................................................................................... 4-32
Precision, Isolation, and Control Valves and Backplane PCA ...................... 4-33
Precision Control Valve ............................................................................ 4-33
Control Valves .......................................................................................... 4-33
Backplane PCA ......................................................................................... 4-33
NC Isolation Valve .................................................................................... 4-35
PCAs .............................................................................................................. 4-35
Access the Electronics Box ....................................................................... 4-36
Power Supply PCA ................................................................................... 4-36
Processor PCA .......................................................................................... 4-36
Main PCA and P-VLV PCA ..................................................................... 4-37
Amplifier PCA .......................................................................................... 4-38
Quick Connect Fittings (QC) and Filter ........................................................ 4-40
Summary of Contents for 4322-SYS-NAVAIR
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