Goldacres Super Cruiser G8, Operator'S Manual, Page: 194 / 210

190 - Chapter 12 - Optional Accessories G8 Super Cruiser Operator’s Manual MY19 - REV 0
Groeneveld Auto Greaser - Components
A pressure switch is included in the lubrication
system (in the main pipe) to provide an alarm
for too low a pressure in the system during the
lubrication cycle.
This switch closes at a pressure of 40 bar, making a
connection to earth. If this does not happen during
the lubrication cycle, because insufficient or no
grease pressure is generated, an alarm will be given.
During the remaining cycle time there will be an
intermittent alarm signal. This alarm will be repeated
after a preset time if the problem is not corrected.
An M24 screw connector connects the switch
electrically.
For a system with a pneumatically operated pump
the pressure switch is fitted to a distribution block.
The electrically operated pump is provided with a
built-in pressure switch.
Above: Pressure switch
Pressure Switch
The pressure switch is easily seen at the front of
the unit. This monitors the system pressure during
operation. Should pressure drop below a set point
(due to brake in a main grease line), the switch will
close and sound a low pressure alarm in the cabin.
The air pressure supplied to the auto greaser is
110 – 120 PSI (7.6 Bar). The minimum required for
effective operation of the auto greaser is 90 PSI
(6.1 Bar). Below this, grease pressure will likely be
inadequate to effectively protect the components.
The pressure switch operates at 40 PSI (2.7 Bar)
grease pressure. Should a main grease line become
broken (see next heading on this page), the pressure
will drop below 40 PSI and the alarm in the cabin
will sound.
Pressure switch location
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