ALSTOR 822 - Page 27

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Instruction manual
OPERATION
850/850 H
INFORMATION AND INSTRUCTIONS FOR OPERATION AND DRIVING, 850/850 H
Speed control
Adjust the speed with the help of the manual throttle control and by pressing on the accelerator pedal with the foot.
Adjust the engine speed with the manual throttle control to 1800-2600 rpm. (See the tachometer functional marking image)
Three things control the speed of your machine:
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The speed of the diesel engine is adjusted using the manual throttle control. The higher the engine speed, the faster/stronger the
machine operates.
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The accelerator pedal: the more you press the pedal, the faster the machine travels. Please note that this also acts as aservice brake.
If you release the pedal, the machine will stop.
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The higher the percentage of inching/potentiometer (see safety/location of controls on page 15, item 10), the faster but less
powerful the machine will be. Conversely, the lower the percentage, the stronger but slower the machine will be.
WARNING! The accelerator pedal is the only service brake. If you release the pedal, the machine will stop.
Activation of dierential locks
The machine should be stationary and the accelerator pedal must not be pressed when activating the dierential locks.
Press the button to activate (page 20, button 15). Wait for 4 seconds. Before starting o, gently turn the steering wheel back and forth.
The dierential lock is activated when the lamp lights up. When activated, the lamp ashes yellow for 4 seconds and the machine
cannot be operated.
STOPPING AND PARKING THE MACHINE
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The machine is equipped with an automatic parking brake.
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When the machine comes to acomplete stop, turn the ignition key to the “OFF” position. The engine will then stop.
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Only idle for alimited time and in accordance with local regulations.
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Park the machine on alevel surface, switch o the main power switch and remove the ignition key.
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Where necessary, secure the machine by putting chocks under the wheels.
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In order to relieve the hydraulic system and to secure the crane against involuntary movement, always park the crane in the lowest
position. Refer to the crane’s instruction manual provided in the document binder.
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In the event of any problems with starting the engine, please refer to the instruction manual from the engine manufacturer
(provided in the document binder).
EMERGENCY STOP
Use the emergency stop switch in an emergency to switch o the engine. Please refer to safety/positions of controls.
To reset the emergency stop, turn the knob clockwise according to the symbol. To switch o the engine, turn the ignition key to the
“OFF” position. Switch o the main power switch and remove the ignition key from the ignition switch.
WARNING SIGNALS DURING OPERATION
The following signals warn of machine malfunctions. Switch o the machine immediately and troubleshoot.
NOTE: The buzzer will only sound if the engine is running.
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Engine overheated = Horn and warning lamp
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High coolant temp = Buzzer and warning lamp
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Low transmission pressure = Buzzer and warning lamp
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Low diesel engine oil pressure = Buzzer and warning lamp
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Outrigger warning = Three beeps from buzzer and warning on display and warning lamp