Auto Controls; Emergency Stopping; Engine Controls; Daily Checks Before Starting - Timberwolf TW 280TDHB Manuel Opérateur

OPERATING INSTRUCTIONS

AUTO CONTROLS

The no stress control unit controls the feed rate of the material going into the chipping chamber. If the engine speed is
below the predetermined level, the no stress unit will not allow the feed rollers to work in the forward "infeed" direction,
until the rotor speed rises above the predetermined level. At this point, the feed rollers will start turning without warning.
The reverse function will work at any engine speed.

EMERGENCY STOPPING

There are two ways of stopping the TW 280TDHB/(a) chipper in the event of an emergency.
Stopping the rollers
Activating the red safety bar will stop the rollers immediately. The rotor will still be turning, the engine must be powered
down to stop the rotor. Turn off the engine ignition key. To restart the rollers, just push the green forward or blue reverse
feed control.
Stopping the engine: Should the engine need to be stopped in an emergency, the engine stop switch on top of the engine
bay should be pushed. This will shut down the engine in the shortest possible time. The engine cannot be restarted until
the engine stop switch is pulled out and the main ignition switch is turned off to reset the machine.
Stopping the rollers and the engine: Should the entire machine need to be stopped in an emergency, activate
one of the red emergency stop buttons positioned on top of the funnel or on either sides of the feed tray.
This function kills all power to both the engine and the rollers, bringing the machine to a complete stop. The
engine cannot be restarted until the button is restored to its original position and the main ignition switch is
turned off to reset the machine. Before disengaging the emergency stop button, inspect the machinery to
determine the reason for activation.

ENGINE CONTROLS

The engine controls are in two locations. The engine ignition is on the control panel in the centre of the machine and the
throttle lever is mounted on the feed funnel.

DAILY CHECKS BEFORE STARTING

• LOCATE the machine on firm level ground.
• CHECK the machine is well supported and cannot move.
• CHECK the jack stand is lowered and secure.
• CHECK all guards are fitted and secure.
• CHECK the discharge unit is in place and fastened
securely.
• CHECK the discharge tube is pointing in a safe direction.
• CHECK the feed funnel to ensure no objects are inside.
• CHECK the feed tray is in up position - to prevent people
reaching rollers.

BEFORE USING THE CHIPPER

It is essential to carry out the following tests to check safety equipment - this sequence of tests will only take a few seconds
to carry out. We recommend that these tests are carried out daily. Observing the function as described will confirm that
the safety circuits are working correctly. This is also a good opportunity to remind all operators of the control and
emergency stop systems.
1
PRESS THE GREEN FEED CONTROL
THE IN-FEED SHOULD TURN
FORWARDS
C190-0142
11 / 65
WITH THE ENGINE RUNNING AT FULL SPEED
2
PRESS THE RED SAFETY
BAR
THE IN-FEED SHOULD STOP
01.03.2019
• CHECK the controls as described below.
• CHECK (visually) for fluid leaks.
• CHECK fuel and hydraulic oil levels.
• If still hitched, ensure tow vehicle is isolated prior to
operation of the chipper.
For parts location see diagrams on pages 4 - 5.
PRESS THE BLUE FEED CONTROL
THE IN-FEED SHOULD TURN BACKWARDS ONLY
WHILE THE FEED CONTROL IS PRESSED
TW 280TDHB/(a)
3
Rev: 2.0