Graco Husky 715, Инструкция по эксплуатации

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308-444 5
Installation
Grounding
WARNING
FIRE AND EXPLOSION HAZARD
This pump must be grounded. Before
operating the pump, ground the system
as explained below. Also read the sec-
tion FIRE AND EXPLOSION HAZARD
on page 3.
The acetal pump contains stainless steel fibers,
which makes the wetted parts conductive.
Attaching the ground wire to the grounding strip
grounds the air motor and the wetted parts.
The polypropylene pump is not conductive.
Attaching the ground wire to the grounding strip
grounds only the air motor.
When pumping conductive flammable fluids,
always ground the entire fluid system by making
sure the fluid system has an electrical path to a
true earth ground (see Fig. 2).
Never use a
polypropylene pump with non-conductive
flammable fluids as specified by your local fire
protection code.
US Code (NFPA 77 Static Electricity) recommends
a conductivity greater than 50 x 10
–12
Siemans/meter (mhos/meter) over your operating
temperature range to reduce the hazard of fire.
Consult your fluid supplier to determine the
conductivity or resistivity of your fluid. The
resistivity must be less than 2 x 10
12
ohm-centimeters.
To reduce the risk of static sparking, ground the pump
and all other equipment used or located in the pumping
area. Check your local electrical code for detailed
grounding instructions for your area and type of equip-
ment.
Ground all of this equipment:
Pump: Attach a ground wire (Y) to the grounding
strip (107) with the screw (117), lockwasher (118)
and nut (119), as shown in Fig. 1. Connect the
clamp end of the ground wire to a true earth
ground. To order a ground wire and clamp, order
Part No. 222–011.
NOTE: When pumping conductive flammable fluids
with a polypropylene pump,
always ground the fluid
system. See the WARNING at left. Fig. 2 shows a
recommended method of grounding flammable fluid
containers during filling.
04031A
Fig. 1
Y
107
117
118
119
Air and fluid hoses: Use only electrically conductive
hoses.
Air compressor: Follow the manufacturer’s recom-
mendations.
Solvent pails used when flushing: Follow the local
code. Use only grounded metal pails, which are
conductive. Do not place the pail on a non-conduc-
tive surface, such as paper or cardboard, which
interrupts the grounding continuity.
Fluid supply container: Follow the local code.