SECTION 6
LOW PRESSURE WATER
Jan 2001
Page 6-3
05114616
6.2.2 Operation
The cutting water enters the pump through port “B”. When the CONTROL
POWER ON button on the operator control panel is activated, solenoid valve
(11) opens allowing water to flow to the inlet of the boost pump (1). The boost
pump increases the inlet pressure to 8 bar (120 psi) to assure proper supply to
both intensifier assemblies. If the motor does not run for 2 minutes, the
solenoid valve (11) will shut off. To re-open the valve, press F6.
NOTE
The boost pump (1) is factory set to deliver 8 bar (120 psi) with an inlet
pressure at port “B” of 4 bar (58 psi). The pump may require adjustment if
local inlet pressure is different, because discharge pressure depends on inlet
pressure. Inlet pressure is affected by filter condition, as well as local water
supply conditions.
The water flows through the low pressure water supply filter (5) and then enters
the boost pump. The filter gages (4 and 6) indicate the condition of the filter. A
difference of 1 bar (15 psi) indicates a dirty filter element that should be
replaced.
The boost pump is connected with hoses to the inlet of both hydraulic
intensifiers with quick connect fittings (13).
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