Over-Speed Governor - Acorn 80 Installation Manual

SECTION 9
OSG
9.1 Over-speed Governor (OSG)
9.1.1 Testing the OSG
THIS TEST MUST BE CARRIED OUT DURING INSTALLATION AND SUBSEQUENT SERVICING.
1 Isolate the lift using the holding switch on
the seat arm/back of the seat cover.
2 Remove screws from Power Bogie
outer covers, and remove covers.
9.1.2 Re-setting the OSG
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
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OVER-SPEED GOVERNOR

OSG TRIGGERED
OSG Regulator weight in upright position
ACORN 80 Installation Manual