VST -HEVR-SBK Installation Procedure

VST Installation Procedure for
Phase II EVR Vacuum Assist
Safety Breakaway Devices
Part Number Series:
VST-HEVR-SBK;
VST-ISVR-SBK
APPLICATION
These VST Safety Breakaway devices are intended to prevent
damage to the dispenser and hose in the event of a vehicle drive off.
These devices separate at pull forces up to 350 lbs. You will need to
determine that 350 lbs. of pull force will not damage the dispenser.
After verifying that the dispenser is securely bolted to the island,
it can be tested by using a spring scale and a length of rope. The
rope must be connected at the dispenser outlet casting, which may
require a threaded bushing with a hole for attaching the rope. Attach
the scale to the rope and pull to 350 lbs.in several directions. Be sure
to avoid damaging the dispenser.
NOTE
a. The whip hose ALWAYS attaches to the dispenser. If a retractor
is being used, the retractor clamp MUST be between the
breakaway and dispenser.
b. VST hoses are made to withstand 350 pounds tensile pull without
damage. If another brand of hose is present at the dispenser, VST
recommends that you contact the hose manufacturer regarding
the compatibility with this breakaway device.
GENERAL INFORMATION
If hanging hardware components are involved in a drive-off or incur
other customer abuse, each individual component must be functionally
tested prior to customer dispensing activities.
INSTALLATION PREPARATION
These procedures must be followed to ensure leak-proof installation
and operation of these safety breakaway products.
1. Turn off and tag the power to the dispenser. Dispenser must be
de-energized prior to service to avoid personal injury.
2. Barricade work area to block vehicle access to the dispenser.
3. Close dispenser shear valve prior to performing any service work
with the hanging hardware (hoses, safety breakaways, and
nozzles).
4. Drain liquid product from the hanging hardware set into an
approved container prior to replacing any hanging hardware
component.
5. When not using the VST Breakaway Assembly Tool (VST-
BAT-200), remove hanging hardware from the dispenser prior
to making replacement component assembly connections. VST
recommends connecting the whip hose to dispenser as the last
connection during hanging hardware assembly.
Figure 1.
EVR Vacuum Assist Hanging Hardware
Open-end wrench
Vac Assist
Connection
Torque wrench with
1-1/2" (38mm)
open-end attachment
1-3/4" (45mm)
open-end wrench
Page 1
Vapor Systems Technologies, Inc.
650 Pleasant Valley Drive
Springboro, Ohio 45066 (USA)
Toll Free: 1-888-878-4673
Phone: 937-704-9333
Fax: 937-704-9443
www.vsthose.com
Torque wrench with
open-end attachment
Safety Breakaway
Nozzle
9570-540 – 01/21