CONNECTOR 6V8633 - Caterpillar

O-RINGS INSTALLED IN STOR/ORFS FITTINGS (FITTING/ADAPTOR ASSEMBLIES)
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Background
Commonly used fluid line connectors are:
Straight Threaded O-Rings (STOR)
O-ring Face Seal (ORFS)
Bolt Flanges (SAE Code 61, 62, and CAT Flange)Radial O-ring seals and conventional face seals are not fluid line connectors.O-ring sealing depends on proper seating of the seal in the groove, maintaining this condition during assembly of the joint, and proper torque on the connection. Improper assembly practices increase the likelihood of leaking joints.Assembly Aids - Retention compounds and lubricants must not be used on STOR/ORFS. Applications requiring the use of a retention compound need to be validated for seal compatibility with the retention compound by Caterpillar before use.Assembly Tooling
O-rings may be installed into a fitting/adapter without the use of a tool however, installing a seal without the use of a tool places the seal at extreme risk of damage. It is recommended that appropriate tooling should be used for the installation of O-rings.Types of Installation Tooling
STOR Installation Tool
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STOR installation tools (1) Tooling head (2) Head edge
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Anatomy of an STOR/ORFS Fitting (3) STOR O-ring (4) Nut (5) Washer (6) ORFS O-ringWhen installing an O-ring over a threaded fitting, it is critical to protect the seal from damage from threads. To assist the assembly and protect the seal, an installation tool must be used shown in Illustration 2. The seal protector slides over the threads and allows for an O-ring to be installed, reducing the risk of a leak due to nicks, cuts, gouges, and twisting of the seal.Tool Ordering Information
The tooling listed below can be ordered from Caterpillar using the part numbers in Table 1.
Table 1
Fitting Size     CAT Part Number    
(-3)     336-0739    
(-4)     336-0740    
(-6)     336-0741    
(-8)     336-0742    
(-10)     336-0744    
(-12)     336-0750    
(-14)     336-0767    
(-16)     336-0784    
(-20)     336-0787    ORFS Insertion Tool
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Anatomy of ORFS O-Ring insertion tool (7) Plunger platform
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Anatomy of ORFS O-Ring insertion tool (8) O-ring slot (9) Plunger/triggerThis tool (Illustration 4) helps to place an O-ring into the fitting groove with minimal risk of damage to the seal.Tool Ordering Information
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Typical installerThe ORFS insertion tool can be procured as outlined in the "Dealer Service Tools 2006 Catalog": Vehicle System Tool Section. Tool part numbers for ordering are shown in Table 2.
Table 2
Fitting Size     CAT Part Number     Dealer Number    
(-4)     179-6884     2-011    
(-6)     179-6885     2-012    
(-8)     179-6886     2-014    
(-10)     179-6887     2-016    
(-12)     179-6888     2-018    
(-16)     179-6889     2-021    
(-20)     179-6890     2-025    
(-24)     179-6891     2-029    Tooling - Possible Damage
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STOR tooling damageNicks, material gouges, and chatter marks along tool head. (10) Tool damageMaterial damage to the surface in which the seal will ride is typically in the form of missing material, nicks, gouges, and so on, when forced over the cone for proper seal seating. Illustration 7 shows