Operation & Maintenance Instruction
Page 6 of 24
August, 2003
4225-50, S.6
When performing the procedures which follow,
springs within the assembly may be under load.
Exercise care so that no parts are inadvertently expelled.
Inadvertently expelled parts may cause bodily injury,
and/or damage to parts.
All air supply to this device and/or to any component
part must be cut off and any air in the device be allowed
to vent before this device and/or any component part
is removed from the equipment arrangement.
Bottled up air under pressure (even though air
supply is cut off) may cause gaskets and/or particles of
dirt to become airborne and an increase in sound level
when this device and/or any component part is removed
from the equipment arrangement. Personal eye and
ear protection must be worn and care taken to avoid
possible injury when performing any work on this device
and/or component part.
An adequate support or lifting device must be
available to support the device and/or valve portion(s)
during removal, installation and maintenance
procedures.
6.0
CLEANING SOLVENT, LUBRICANT & SEALANT
6.1
CLEANING SOLVENT
6.1.1
The means used to clean the reusable parts of the
ABDX-SS Type Control Valves MUST BE an aliphatic
hydrocarbon solvent, such as mineral spirits or naptha, or a
heated aqueous biodegradable detergent and rinse.
IMPORTANT:
Cleaning materials are to be used in a well
ventilated area.
6.2
LUBRICANT
Lubricant
Current AAR Specification
Triple Valve Oil
M-912
Dry Graphite
M-913
Brake Cylinder Lubricant
M-914
6.2.1
The o-ring, o-ring grooves and the o-ring bearing
surfaces of the bushing(s) must be lubricated with Number 2
Silicone Grease, Wabtec Corporation Specification M-07680-
02 (Industry Designation MIL-G-4343), such as Dow Corning
Corporation, Dow Corning 55.
6.2.2
The threads of choke plugs and all other removable
plugs, as well as all other threaded parts which may later be
difficult to remove, must be pre-coated with a Loctite product
called Vibraseal #517. The Vibraseal plugs are to be fully
threaded into place, however discretion should be used when
tightening the choke plug, to facilitate removal.
6.3
SEALANT
6.3.1
Locking Sealant, Westinghouse Air Brake Company
Specification M-07499-05, such as Loctite Corporation TL-
242, is required for application to certain threads.
7.0
MAINTENANCE PROCEDURE
7.1
ON-CAR MAINTENANCE PROCEDURES
IMPORTANT:
ON-CAR Maintenance is limited to the
removal and replacement of Component Portions. No ON-
CAR repair of the valve is to be attempted.
7.1.2
SPECIAL TOOLS
IMPORTANT:
The information shown in Figures 6 thru 11,
for making tools, is furnished as a convenience. The Wabtec
Corporation shall have NO responsibility for tools which they
do not manufacture and will not be responsible for the results
when using any of the specified tools (including claims by
third parties).
7.2
PORTION REMOVAL & INSTALLATION - "ON CAR"
7.2.1
IMPORTANT:
ALL
car builder and owner-
operating property safety procedures, in addition to warnings
as listed in Section 5 of this publication,
MUST BE
adhered to.
7.2.2
IMPORTANT:
The handbrake(s) of the car
MUST BE
applied and the wheels of the car chocked to
prevent unintentional car movement. Warning placards
indicating that work is being performed are to be placed on
and about the car.
7.2.3
IMPORTANT:
ALL
air flow to the ABDX-SS
Control Valve
MUST BE
allowed to deplete and subsequently
be cut off.
