John Deere SR1750 HE - Manual (Page 18)

Manual Stair Robot SR1750 HE
Publication: 29-07-04
AATA INTERNATIONAL B.V.
• The stair robot can be stopped at any stage by just releasing the buttons
• When arriving on top of the stairway; stop the stairrobot on the stairs and place the
dolly in position at the top of the stairs in front of the stairrobot. Pull the extendable
frame out of the dolly to increase stability
• Start the forward movement again
• Note: expect a change of gradient from the level of the stairs to the gradient of the
dolly
• When the stairrobot has reached the ‘point of balance’, the operator holding the load
support strap should assist in the movement by gently pulling the load support strap,
to ease the load downward. The other operator should keep the ideal load level
during this operation. The stairrobot can then be driven forward to settle onto the dolly
• Transport dolly and load to the unloading point or to the next flight of stairs to
continue upwards.
5.4. Descending
• Make sure that the stairway is secured and no person can enter the stairway.
• To descent the stairrobot down the stairway the loaded stairrobot has to be first
driven onto the dolly, as previously described for ascending
• Move the loaded stairrobot on the dolly with the downward end towards the edge of
the top of the step and stop 10 cm away.
• One operator will drive the stairrobot using the control panel while the other operator
will steady the load firmly using a load support strap.
• Press the reverse button to drive the robot from the dolly and down the stairs
• The up and down button is used to maintain ideal load level
• By reversing slowly, 5 cm at a time, and stopping at the ‘point of balance’ the control
operator will be able by pressing the up button gently alter the centre of gravity so as
to lower the reverse end tracks onto the top of the stairs.
• The dolly should be moved aside when the stairrobot is fully on the stairs.
• Drive the robot in reverse down the stairs steadying the movement throughout by
using the a load support strap
• Depending on the gradient, the stair robot will ride on the edge of two or three steps
at once. The rubber tracks pressing firmly onto the stairs
• On some stairs it may be found that occasionally two of the rubber treads ride on the
stair edge and when the third tread releases it’s grip the stairrobot will move down
suddenly about 2,5 cm until all three treads grip once more. This occurrence should
be expected by the operators and the stair robot should be driven on without a pause
• Before arriving at the bottom of the stairs the dolly and the lead on ramp should be
placed in position with the lead on ramp resting on the second or third step.
• Drive the stairrobot of the stairs and onto the dolly keeping the ideal load level by
using the up or down button
• Transport dolly and load to the unloading point or to the next flight of stairs to
continue downwards.
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