Snorkel TB120 2001 - Manual (Page 54)

8. EMERGENCY OPERATION
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D A N G E R
Death or serious injury can result from being
crushed by the main boom as it lowers. At the
next step do not reach for the manual bleed-
down valve from above the turntable.
Death or serious injury can result if a TB120
tips over. A TB120 can tip over if the booms
lower without retracting. At the next step,
stop immediately if the booms lower without
retracting.
If you have any control over turntable swing,
align the turntable with the chassis to take
advantage of the extended base of support.
2. Reach the manual bleed-down valve from the
position shown above.
3. Very slowly open the emergency bleed-down
valve. 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 at the next step. Failure to do so
prevents the main boom from remaining
stationary in an elevated position.
4. Close the emergency bleed-down valve.
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