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MECHANICAL
DRIVE
The mechanical drive transmits the motor power via belts, flywheel
and reduction gear to the crankshaft. The large gearwheel is mounted
on the crankshaft with clamping assemblies -- not keyed. This means
its position can be changed periodically to prevent the same teeth
from always carrying the load.
CLUTCH AND BRAKE
The clutch and brake are controlled electropneumatically. They are
mounted on the ends of the flywheel shaft and are easy to get at
when discs need changing. The two control valves are mounted right
next to the clutch and brake, affording virtually instantaneous
response. This is particularly important in the event of an emergency
stop, to make sure the machine is brought from full speed to a dead
halt with the smallest possible braking angle.
AUTOMATIC CENTRAL PRESSURE LUBRICATION
The automatic central pressure lubrication system employs two separate
lube circuits. One serves the two crankshafts bearings and the pitman
bearing. It is designed for oil re-circulation, because lots of
oil is required at these points. The second circuit supplies all
other bearings and lubrication points on the machine without re-circulation.
The two subsystems have their own pumps, but draw the oil from a
common tank, which means that the circulating oil is sure of being
renewed regularly as this tank is replenished.
OIL SUPPLY
The oil supply to the most important lube points is monitored constantly.
Whenever there is not enough oil, a signal light and horn warn the
operator. If nothing is done, the machine will switch off automatically
after a set interval. The oil level in the tank is monitored the
same way.
PRE-LUBRICATE
The operator has to press a button to pre-lubricate the machine
before starting. If this is not done, a locking feature prevents
the machine from running until the pre-lubrication is taken care
of.
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