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ACORN 80 Maintenance & Service Manual
SECTION 7
Dismantling Components
7.8.3 OSG Re-setting Procedure
1 Inspect OSG to see whether it has triggered/fired - regulator weight will be in an upright position as shown
below with the regulator teeth engaged with the Cam gear tooth and the OSG wedges will be up against the rail.
OSG NOT TRIGGERED
OSG Regulator weight in level position
OSG TRIGGERED
OSG Regulator weight in upright position
2 Picture below shows plunger in it’s fired position activating the switch.
SWITCH
PLUNGER
In its fired position
3 To reset the OSG, Press and hold down on the Reset Lever (In a downstairs direction) and this will deactivate
the switch by resetting the plunger back to its original position.
RESET LEVEL
To be pressed in a
downstairs direction
PLUNGER
Reset back to its
original position