COMPONENT MAINTENANCE MANUAL
00001059
(3)
Testing and Fault Isolation
(a)
It contains special tests and procedures which you must do to find the condition of a
component. The general test procedure is given in the FAULT ISOLATION TABLE. For
each test, this table refers to a special procedure which gives all the parameters which
you must set. It also gives all the parameters for which you must do a check.
(b)
The pressure values in the tests are gage-pressure values.
(c)
Before you use any of the measuring instruments, make sure that they are in correct
operating condition and that they are calibrated.
(d)
Do a check for pneumatic system tightness, if this is applicable.
(e)
You must do the tests in a room at ambient tempe 25 °C ± 20 °C (41 °F to 113 °F).
(4)
Schematic and Wiring Diagrams
This Page Block contains all the schematic diagrams and the wiring and interconnecting
diagrams of the cards.
It also contains the diagrams of:
– chassis wiring, modules, and sub-assemblies
– external connector interconnections in the component.
(5)
Disassembly
(a)
This Page Block gives step-by-step disassembly instructions in a correct sequence, and it
refers to the figure item numbers from the IPL illustration(s), when they are applicable.
Identify the type of fault, to know how much the extent of disassembly is necessary (do
this to prevent disassembly/reassembly work that is not necessary). The procedure given
below is when full disassembly is necessary.
(b)
Put the component on a clean workbench, in a dust-free and moisture-free room. Move all
the parts carefully, and prevent corrosion and impact damage to them after disassembly.
NOTE:
Always discard all the seals and gaskets during disassembly.
Discard the washers, the nuts and the screws during disassembly if they are
damaged.
(6)
Cleaning
(a)
This Page Block gives a step-by-step description of the cleaning operations for the
component and its parts.
(b)
Always use the recommended procedures for the component parts of the unit.
(7)
Inspection / Check
(a)
This Page Block gives the full check procedures which are necessary during shop
maintenance.
(b)
Discard all the defective parts if the document does not give a repair procedure.
INTRO
21-22-91
Page 3
Dec 15/06
The document reference is online, please check the correspondence between the online documentation and the printed version.
