Emergency Lower (Aided); Emergency Lower (Unaided) - Upright TL37 Service & Parts Manual

2. Emergency Lower.
In the event of a power failure, There are two ways of Safely lowering the
basket.
Emergency Lowering, method one
If you are able to get assistance from the ground they can lower both booms
by pressing the Emergency Lower Valve on the ram.
Open the Lower Ram valve first to facilitate access to the Top Ram valve.
Each emergency lower valve will automatically close when the
handle is released.
If the Emergency Lower is used due to a machine defect, DO NOT use
the machine, Contact your local UpRight representative.
If the Emergency Lower is used, The TOP and BOTTOM BOOMS must
be fully extended then fully lowered before work can continue.
After Emergency lowering, any further POWERED lowering could
cause an AIRLOCK in the hydraulic system.
ALL BOOMS MUST BE FULLY EXTENDED/RAISED, THEN LOWERED
BEFORE WORK CAN RECOMMENCE.
This could cause the Hydraulic operations to Fail.
EMERGENCY CONTROLS
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