Model TA50RT
Rev. 1 04/99
4
EMERGENCY PROCEDURES
4 - 3
4.2 EMERGENCY SYSTEMS AND PROCEDURES
4.2.1 EMERGENCY PUMP
This machine is fitted with a handpump which can be operated from the ground control station when the unit
has lost power. In an emergency situation the pump can be used to lower the cage to provide a safe exit for
personnel. The pump is located at top of hydraulic tank in the main control module. The lever is stowed nearby
on the side of the tank.
Ground Operation: (refer to Figure 4.1)
Move black handpump lever (Item 1, Fig. 4-1) to the left to operate all boom functions and to the right to
disengage the brake and drive axle. (see section 4.2.3.1).
To operate main boom functions (move handpump lever to left) the Hydraulic bypass valve (BY) should be
fully engaged by screwing in the top knob (turn clockwise by hand) and the dump valve overide button (DP)
should be rotated anti-clockwise and allowed to pop out.
Select desired function by screwing in (clockwise) the appropriate knob by hand only.
Generate hydraulic pressure by pumping hand pump, to move boom to required position.
The function may be deselected by screwing out (anti-clockwise) the knob to its fullest extent ( by hand only).
Ensure that for reversing the operation of a valve, (i.e. rotation control from left to right), the knob used for the
first function should be screwed out fully before the opposite knob is screwed in.
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