Lifton LP 8 E, Operating Manual, Page: 4 / 27

Instruments
Automatic Low Level Cut-Out Switch
operating on hydraulic oil level prevents motor starting if the level is too low. Correct oil
level is the top position of the sight glass.
Filter Condition Gauge
The filter condition gauge, which is mounted in the cowl, indicates the condition of the
return line filter. The filter element should be changed when the needle is in the red
sector (at working temperature).
By-Pass Valve
The by-pass valve allows change of tool during operation. Move the valve to the OFF
position for change of tool or motor start. The by-pass valve can also be used to adjust
the oil flow to the tool (setting part way between OFF and ON), if less than 20 l.p.m. is
required.
Automatic Hydraulic Oil Thermostat
The thermostat ensures that the hydraulic oil has the correct temperature under all
weather conditions.
Thermal Relay
prevents the electric motor from overheating. If the powerpack stops due to overheating,
it can be started again after a few minutes by pressing the blue button on the thermal
relay.