Time Versalift SST-37-EIH, Operator'S Manual

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5-2 28009-09 09/16 VERSALIFT SST-37/40-EIH
EMERGENCY
OPERA
TION
Manual Rotation
Figure 5.4
OUTRIGGER BOOM INTERLOCK MANUAL
OVERRIDE –
In the event of diverter valve failure,
and the lift becomes inoperable with an operator
aloft, the outrigger boom interlock selector can
be overridden to lower the booms and return the
operator to the ground. To activate the manual
override, locate the solenoid operated 3-way valve,
usually in the pedestal. On the end of the valve,
there is a small tab (Fig. A) which can be pressed
with a small screwdriver, capscrew, etc. With this tab
pressed down, hydraulic fl ow will be diverted from
the outriggers to the lift. Another operator can then
operate the lower controls to lower the booms.
WARNING:
USE OF MANUAL OVERRIDE
TO O P E R AT E T H E L I F T W I T H O U T T H E
OUTRIGGERS DEPLOYED CAN RESULT IN
SERIOUS INJURY OR DEATH.
Outrigger Boom Interlock Manual Rotation
Figure 5.5
ENGINE START/STOP CONTROL (Standard) - The
engine start/stop control can be used for emergency
operation in the event the prime power source (truck
engine, auxiliary generator, etc.) stalls or dies. To
restore lift operation use the engine start/stop control
to crank the engine and attempt to stow the booms at
the same time.
Crank the engine intermittently at
30 second intervals to conserve the battery. Use
the backup pump rather than the engine start/
stop control, if it is installed.
The engine start/
stop control is operated by a three-position toggle
switch at the lower controls and an air cylinder at the
upper controls for a hydraulically leveled unit, and a
lever on gravity leveled lift.
DANGER:
THE TRUCK TRANSMISSION
MUST BE IN NEUTRAL OR PARK BEFORE
USING THE ENGINE START/STOP. STARTING
THE TRUCK IN GEAR WILL CAUSE MOVEMENT
WHICH MAY CAUSE DEATH OR SERIOUS
INJURY TO THE OPERATOR IN THE LIFT OR
ANYONE IN THE PATH OF THE TRUCK.
RECOMMENDED EMERGENCY PROCEDURES:
INJURED OR INCAPACITATED OPERATOR - If
the operator is unable to operate the aerial lift,
determine if any damage has occurred to make
the lift inoperable. If the aerial lift is operable and
the situation allows safe operation from the lower
controls, move the platform away from the danger
and into the shortest clear path to get the operator on
the ground. See “Control Selector”, at the beginning
of this section, for specifi c instruc tions on overriding
the upper controls. If the aerial lift is not operable,
use another aerial lift to rescue the operator from
the platform or consider one of the other emergency
procedures in this chapter.
HYDRAULIC LINE FAILURE - Hydraulic line failure
during aerial lift operation presents numerous
hazards. Be aware that hydraulic oil mist caused
by a leak or hydraulic line failure is conductive even
though a non-conductive oil is used.
DANGER:
AVOID HIGH PRESSURE
HYDRAULIC OIL SPRAY. THIS SPRAY OR MIST
CAN PUNCTURE OR BECOME EMBEDDED
BENEATH THE SKIN OR CONTAMINATE
THE EYES. THESE CONDITIONS REQUIRE
IMMEDIATE MEDICAL ATTENTION.
A hydraulic line leak can create a vacuum in a closed
line; the ‘vacuum’ is conductive. Furthermore, most
hydraulic oils are fl ammable. Another danger to
personnel is bodily contact with hot oil. The operator
and the ground crew must be alert for these hazards
to avoid injury.
D A N G E R :
AV O I D A N Y C O N TA C T
BETWEEN HYDRAULIC OIL AND SOURCES
OF HIGH HEAT OR OPEN FLAMES. DEATH OR
SERIOUS INJURY MAY RESULT FROM A FIRE.