Operation; Control Circuit Components - nifty TM Series Operating And Safety Instructions Manual

TM Series
Operating & Safety Instructions
4

Operation

4.1

CONTROL CIRCUIT COMPONENTS

4.1.1
CONTROL BOARD: - Situated under the canopy, the control box contains all of the wiring and relays to
control the machine operation. The control box is common between models with the same power
source, and will contain, where appropriate, discrete fuses for the circuits concerned.
4.1.2
KLAXON: - Mounted under the control board box is a klaxon. It is this device that sounds continuously
if a jack goes light during operation, (i.e. when the booms are raised) warning the operator of this
condition. If the operator attempts to activate the machine by turning the key switch in the platform or
the base control unit to the "ON" position and pushing the green button before the jacks are deployed,
the klaxon will also sound indicating to the operator that the jacks are not setup correctly.
4.1.3
BOOM-SWITCH: - Mounted on the side of Boom 1 near the boom rest and operated by contact with
the boom 3, this switch controls the changeover function between jacks and platform. The jack control
function is not available unless this switch is engaged with the boom, ensuring that the machine must
be stowed to operate the hydraulic jacks. It is also similarly linked into the platform control circuit, such
that if the switch is not engaged with the booms, (i.e. machine is in operation) then the outrigger
sensors are active and would warn the operator of an unsafe condition, should one of them loose
contact with the ground. These control functions are of primary importance to safety of the machine
and operator; under no circumstances should this control function be isolated or by-passed.
4.1.4
BATTERY ISOLATOR: - A grey battery isolator handle is located beneath the canopy which allows the
machine control and power circuits to be isolated from the batteries themselves. Under normal
operation, the machine Key switch should be used to isolate the machine with the Battery Isolator only
being required to disconnect the batteries for maintenance or in the event of a short circuit. The battery
charging circuit is connected directly to the battery side, so charging is un-affected by use of this
switch.
4.1.5
POWER SOURCE SELECTION: - On multiple power option machines, the machine is fitted with an
'instinctive' circuit for power source selection. Pressing the green button will automatically select
battery operation. The engine can be started using the two position START/STOP selector in the
platform and the machine will 'default' to engine operation via a flow switch in the hydraulic circuit.
Stopping the engine by selecting STOP on the two position selector in the platform and pressing the
green button will return the machine to battery mode.
4.1.6
DIESEL ENGINE: - Generally a Yanmar L40 or Kubota 0C60 engine, described in the maintenance
section of the Workshop Manual, driving a single bodied pump with direct mounted pump dump valve.
4.1.7
PETROL ENGINE: - Generally a Honda GX 160 engine, described in the maintenance section of the
Workshop Manual, driving a single body pump with direct mounted pump dump valve.
22
English/USA – 01/10
Issue 06