Castell Salvo SGL User Manual Download Page 1

Salvo SGL

User Guide

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U-Salvo-2013-E Issue 1

The Salvo Glad Hand Lock (SGL) is a key operated mechanical locking 
device designed to fit on to all European and US trailer, emergency 

brake line connectors. Its purpose is to prevent re-connection of the air 

brake hose, thereby immobilising the trailer. When fitted, the SGL can 

only be removed with the permit key.

Operation

Salvo SGL

Salvo SGL is heavy. During the course of normal use, it may become dirty, greasy and slippery. If you drop it on your foot, 
you may sustain serious injury. Handle with care. Wear appropriate personal protective clothing.

Precautions

Maintenance

A lubrication point is provided adjacent to the key entry aperture and trigger mechanism. The recommended lubricant is Armna 
G4789 or equivalent. The recommended lubrication interval is 6-12 months as required. Keeping the Salvo SGL clean will ensu

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re long and reliable service.

 

 

1

2

Disconnect the 
airline from the 
trailer connector, 
then engage the 
centre peg of the 
SGL on to the air 
line connector on 
the trailer.

 Rotate SGL 
downwards.

Removal of the SGL lock is the reverse of the above procedure.

When operation is complete, please return to its normal storage location or issuer.

3

4

Slide the SGL lock 
portion towards 
the air line 
connector.

Only when the 
Salvo SGL is on 
the connecter 
can the key be 
rotated anti-
clockwise and 
removed.

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