Snorkel TB60 2001 - Manual (Page 47)

8. EMERGENCY OPERATION
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EMERGENCY BLEED-DOWN
Use the emergency bleed-down valve when all
three of the following conditions exist
simultaneously:
•
the platform needs to be lowered,
•
the TB 60 engine will not start,
•
EMERGENCY POWER does not work (dead
batteries or other cause).
D A N G E R
Do not lower the platform or booms onto
electrical wires, people, or other
obstructions.
NOTE: If the main-boom is allowed to drop
below the horizontal, the platform will not
remain level.
1
2
The emergency bleed-down valve (1) is located
under the turntable (2). To use the valve:
1. Very slowly open the bleed-down valve (1) by
turning it counterclockwise. The further it is
opened, the faster the booms come down.
D A N G E R
Be certain you close the emergency bleed-
down valve (1) at the next step. Failure to do
so prevents the main boom from remaining
stationary in an elevated position.
2. Close the emergency bleed-down valve (1)
when the main-boom is horizontal.
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