HR Series
Operating & Safety Instructions
English/USA – 11/06
35
5
Emergency Controls
5.1
GENERAL
CHECKING THE OPERATION OF THE EMERGENCY CONTROLS EVERY DAY
AND/OR BEFORE EACH SHIFT IS AN ESSENTIAL PART OF THE OPERATOR'S
DUTIES
The operator and all ground personnel must be thoroughly familiar with the location and operation of
the
EMERGENCY CONTROLS
.
5.2
IN THE EVENT OF AN INCAPACITATED OPERATOR
Turn the
Base/Platform
selector at ground control station to
ground
(clockwise). Lower on ground
controls as detailed under Section 4.2
Ground Control Operation.
5.3
IN THE EVENT OF MACHINE FAILURE
If all machine power is lost, the
Emergency Hand pump
can be used to provide the hydraulic power to
manoeuvre the machine. Lower platform using hand lever controls at ground control station.
Note:
If the machine is fitted with a cage overload system, and the cage comes into contact with a
fixed object whilst operating at height, this would be detected as an overload condition. All power to
the machine controls would be lost, requiring the machine to be recovered using the
Emergency Hand
Pump
. It is sufficient for the cage to be manoeuvred away from the collision point to re-set the cage
weigh mechanism, thereby restoring normal machine operation. The cage could then be brought down
using the controls as described previously.
Opening the nearside machine canopy reveals the ground controls, plus the dedicated hydraulics for
the Emergency recovery of the machine.
Primarily there are two emergency hand pumps, one for the boom functions only, mounted separately
and adjacent to the ground control valve block. The second hand pump is specifically for the drive
system and is incorporated into the Drive Control Valve.
Summary of Contents for HR15
Page 2: ......
