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This manual covers service information for the electronic components of Bennett pumps. It covers the
LNG Series with 708 electronics. Information is correct at time of publication. For more information,
please contact the Bennett Customer Response Department at Bennett Pump in Spring Lake, Michigan.
UNAUTHORIZED ALTERATION OF BENNETT PRODUCTS
Bennett Pump Company products are designed to meet or exceed the standards of UL, FCC and the
National Institute of Standards and Technology.
consumer from personal injury and ensure an accurate delivery of product. Any deviation from the use
of authorized replacement parts or alteration of a designed product configuration may cause personal
injury, death or the revocation of one or all of the above approvals.
The most frequently abused design alteration of Bennett products is the conversion of a self-contained
model (pumping unit in the dispenser cabinet) to a remote dispenser (submerged pump in the storage
tank). This field practice has mainly occurred in an effort to overcome the problem of vapor lock.
Bennett Pump Company does not condone nor offer a kit or instructions for this type of conversion.
Bennett Pump Company strongly opposes this type of conversion. Safety standards required by the
agencies above are violated when unauthorized conversions are performed.
Bennett Pump Company will not assume responsibility or liability for any consequential injury or damage
caused by the unauthorized alteration of its products.
NOTE:
Before performing any type of service to the dispensers, be sure to shut off all
electrical supplies and secure them in the OFF position. Close all valves in incoming
piping. Maintenance must be performed by trained personnel ONLY.
BEFORE SERVICING A BENNETT DISPENSER, CHECK THE FOLLOWING:
1. Make sure all dispensers are correctly grounded with 12 gauge wire.
2. Make sure input voltages are within operating level: 120VAC (96 to 135VAC).
3. There are no more than two units operating on a clean and dedicated 120VAC voltage
source.
IF ANY DEVIATION FROM THE ABOVE IS FOUND,
CORRECT THE PROBLEM BEFORE PROCEEDING.
FOR CNG INSTALLATIONS:
Note: It is REQUIRED that a pressure regulator is installed at the dispenser if there is no other
device to limit pressure at the dispenser.
Note: Pressure at the dispenser must not exceed 4250PSI.
Introduction
These standards protect the operator and the
4
125870 Rev A 8-12-14
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