SD64 Series
Operating & Safety Instructions
USA – 04/16
Issue 04
21
4
Operation
4.1
CONTROL CIRCUIT COMPONENTS
4.1.1
MAIN CONTROL BOARD
: - Situated under the left-hand superstructure cover, the encapsulated control
board comprises a PCB (printed circuit board) design that incorporates all of the circuit to control the
machine operation. The control boards are common to all models, and contain functions that might not
be utilised on your particular machine.
4.1.2
BASKET OVERLOAD: If the
Niftylift is fitted with a basket overload sensing device located between the
basket bracket and the basket itself. This device is preset at the factory and must only be reset or
adjusted by a qualified Niftylift representative. If the basket payload of 500lbs is exceeded, the sensor
will immediately shut off the diesel engine preventing further use of the machine. The diesel engine
cannot be restarted until the payload is reduced to a mass of 500lbs or less.
4.1.3
TILT ALARM
: - There is a 10
tilt alarm fitted to the superstructure underneath the base controls cover,
which is a solid-state sensor that monitors the inclination of the machine. This tilt alarm operates a
sounder and warning lamp on the basket control panel warning the operator that the machine is
operating on a slope greater than or equal to 10º.
Great care must be taken at all times when
manoeuvring any machine on slopes greater than 10º.
If in any doubt as to the stability of the
machine whilst operating across a slope partially deploy the downhill outriggers for additional safety.
WARNING – Continuing to drive across slopes in excess of a 10
inclination
with the tilt sensor activated could result in the machine rolling over causing
serious injury or death!
4.1.4
SOUNDER
: - Situated on the front of the base control box is a small piezo electric sounder, which is
used to provide an intermittent alarm whenever the machine is in operation. Pushing the green "power
control" button, or depressing the foot switch in the basket (if fitted) will energise this sounder. This
serves to warn personnel of the operation of the machine.
4.1.5
HORN
: - Located on the side of the base control box is a horn, which is used as a manual alert, by
pushing the "Horn" button at the Basket control position.
4.1.6
SIREN
: - Also located on the side of the base control box is a device that sounds continuously if the Tilt
Alarm Sensor detects excessive inclination when the allowable ground slope is exceeded while driving.
It will also sound when the low fuel warning light comes on.
Lastly it will sound when any of the stabiliser feet lifts free from the ground.
4.1.7
MAIN CONTROL VALVE
: - The main control valve contains the steer valve and the brake release
system. Should any of these functions require overriding, use the hand pump, (see Section 5.3).
4.1.8
BOOM CONTROL VALVE
: - The boom control valve contains the ON/OFF solenoid and PRV for the
boom controls. Should any of these functions require overriding, use the hand pump, (see
Section 5.3).
4.1.9
BOOM-SWITCHES
: - Mounted on the tele-knuckle and the booms down/centralising post located on
the top of the base, and operated by any of the booms raising and/or the telescopic boom extending,
these switches control both the operation of the Tilt Alarm Sensor, and the drive speed control function.
Summary of Contents for SD64 4x4x4
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