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Gasboy Atlas Start-up User Manual

Page 163

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

Page 6-43

Hanging Hardware

Hydraulic/Mechanical Components

6

Use a UL-approved pipe sealant on hose coupling with NPT threads. Follow all these
recommendations:

• Ensure that you follow the manufacturer’s instructions for installation and proper torque.
• Do not use Teflon tape. Teflon tape on these components can cause damage during

assembly or installation and defeat the conductive property of the hanging hardware and
cause nozzles to malfunction.

• Do not apply sealant to the first two threads of any hose coupling.
• Do not use sealant on hose end couplings using O-ring seals, such as those found with

coaxial vapor recovery hoses (a light coating of silicone grease is advised to allow the

O-rings to seat and seal properly).

• Assemble the clamp to the hose to ensure proper retrieval and minimum trip hazard, then

the hose to the breakaway, then to the whip hose and swivel, and finally to the nozzle.
Always attach the hose assembly by rotating the hose and coupling. Screw the coupling in
securely. Do not overtighten.

Note: Install padded or contoured plastic hose clamps and retractor cables properly. In all

instances, do not install hose retractor clamps downstream of the breakaway.

7

Check the hose hanging hardware for continuity. Refer to

“Testing Hose and Hanging

Hardware Continuity”

on

page 6-46

. Replace any components, if required.

8

Restore power to the unit. Open the shear valve for dispensers.

9

Check for leaks.

10

Bleed system of air. For more information, refer to

“Purging Air from System”

on

page 6-9

.

11

Check for leaks again.

Flow Restrictors

Flow restrictors are the devices used for pumps and dispensers to reduce flow rates.
Commonly, they are used for vapor recovery applications and to limit the maximum flow to 10
gpm, as per certain US national regulations. They are commonly used as a separate device
attached between the hose outlet casting and hose. For more details, refer to the
manufacturer’s installation and service information.