pg. 11
10
Start Up
Do not start the pump unless it has been completely submerged in fluid.
Before start up, the pump must be primed. Prime by means of submerging the entire
pump in DEF. This ensures that the mechanical seal is well lubricated, and that the pump
immediately discharges fluid.
Dry operation causes irreparable damage to the mechanical seal.
• Turn the power supply switch upstream from the pump to position I (ON) and wait
until the liquid comes out of the delivery pipe.
• If malfunctions are found, disconnect the pump from the power supply, turning the
power supply switch to position 0 (OFF) and consult the section on
“TROUBLESHOOTING”.
• The pump may be started and stopped manually by means of the isolator switch
upstream from the system.
11
Precautions
The pump should not be started more than 30 times in one hour so as not to subject the
motor to excessive thermal shock. The suction filter in BLUE DIVER pumps must always
be present during pump operation.
DANGER OF FROST:
When the pump remains
inactive for a long time at temperatures of less than 32°F, the pump body must be
completely emptied, to prevent possible cracking of the hydraulic components. This
operation is advisable even in the event of prolonged inactivity at normal temperature.
When starting after long periods of inactivity, the starting-up operations listed above must
be repeated.
12
Maintenance & Inspection
In normal operation, the pump does not require any specific maintenance. However, it
may be necessary to clean the hydraulic parts when a decrease in performance is
observed.
The pump must not be dismantled unless by skilled personnel in
possession of the qualifications required by the regulations in force.
In any case,
all repairs and maintenance jobs must be carried out only after having disconnected the
pump from the power mains.
13
Modifications & Spare Parts
Any modification not authorized beforehand relieves the manufacturer of all
responsibility.
All the spare parts used in repairs must be original ones and the
accessories must be approved by the manufacturer so as to be able to guarantee
maximum safety of the machines and systems in which they may be fitted.
13.1
Removal and replacement of parts
Before beginning any servicing, ensure that the pump is not connected to the
power supply.
Summary of Contents for DAB BD-750
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