nifty TrackDrive TD120T Series, Инструкция по эксплуатации и безопасности

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TrackDrive (TD) Series
Operating & Safety Instructions
English/USA – 02/17
19
4 Operation
4.1 OVERVIEW
4.1.1 CONTROL CIRCUIT COMPONENTS
CONTROL BOARD : - Situated under the canopy, the control board comprises a PCB (printed circuit
board) design which incorporates all of the relays to control the machine operation. The control board
is common between models with the same power source, and will contain, where appropriate, discrete
fuses for the circuits concerned.
KLAXON: - Also mounted on the base is a klaxon, which performs several functions: - Firstly, it can be
used as a manual alert, by pushing the “Horn” button at the platform control position. Secondly, it is
this device which sounds continuously if a jack goes light during operation, with the booms raised,
warning the operator of this condition. It will also sound if the Ground Control Key switch is turned to
“Platform” before the jacks are deployed correctly.
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.
HYDRAULIC DUTY SELECTOR VALVE: - Mounted on the top of Boom 1. Allows the selection of either
‘Booms’ or Outrigger’ control, operated from the rotary switch located in the cage. (Refer to
Section
4.4.2)
DIESEL ENGINE: - Generally a Kubota 722E engine, described in the maintenance section of the
Workshop Manual, driving a double bodied pump with direct mounted pump dump valve.
CONTROL BOX: - Located adjacent to the Diesel engine, the control box combines all of the functions
for Dual power operation (Bi-energy machines), as well as controlling the Diesel engine. The relays in
this box control Starting, High Throttle, Pump Dump, Duty Selector and Diesel stop timer. There is also
an integral Thermal trip, which protects the Throttle solenoid and other functions.
PETROL ENGINE: - Generally a Honda engine, described in the maintenance section of the Workshop
Manual, driving a double body pump with direct mounted pump dump valve.
PETROL BOX: - Located adjacent to the Petrol engine, the Petrol Box combines all of the functions for
dual power operation, as well as controlling the petrol engine itself. The relays in this box control
Starting, High Throttle, Pump Dump, Duty Selector and Engine Stop. There is also an integral Thermal
Trip, which protects the Throttle solenoid and other functions.