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Caution – Gasboy Atlas Start-up User Manual

Page 131

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MDE-4334D Atlas™ Start-up and Service Manual · July 2013

Page 6-11

Purging Air from System

Hydraulic/Mechanical Components

8

Wear eye protection and exercise caution by removing the hose slowly with a cloth or by
other means, to prevent fuel spray. Fuel under pressure may remain in the product lines.

CAUTION

Remove the hose from the test port.

9

Reinstall the plug using a UL-approved pipe sealant suitable for the fuel involved.

10

Open the shear valve and restore power.

11

Check for leaks during purging.
Note: See

Figure 6-5

on

page 6-12

.

Purging Pumps and Dispensers (with Fuel in Product Lines)

To purge the pumps and dispensers, proceed as follows:

Using Nozzle to Purge Unit

Use the following procedure for units that have their product lines purged of air or have not
been drained. Begin purging by partially opening the nozzle until fuel is observed at the
nozzle, after which you can open the nozzle further to finish purging.

Purging through a fully open nozzle on a unit with air in product lines can damage the meter due
to overspeed.
Damage resulting from overspeed is not covered by warranty.

CAUTION

Amount to Purge at Nozzle

Use the following table to determine the amount of fuel that is to be dispensed when purging
the unit through the nozzle. Use the appropriately-sized Prover Can:

For

Amount to Pump

Major services (changing meters, pumping units, and others)

25 gallons (94.6 liters) per hose

Minor services (changing filters, strainers, and others)

10 gallons (37.9 liters) per hose

Start-ups (installing new systems)

35 gallons (132.5 liters) per hose

1

Lift the nozzle handle of the hose being purged.

2

Place the nozzle in the approved container (see

Figure 6-5

on

page 6-12)

.