Manual
5
Installation
General Information
D The Typical Installations shown in Figs. 2–4 are only
guides for selecting and installing system components.
Contact Graymills for assistance in planning a system to
suit your needs.
D Always use Genuine Graymills Parts and Accessories.
D Reference numbers and letters in parentheses refer to
the callouts in the figures and the parts list.
TOXIC FLUID HAZARD
Hazardous fluid or toxic fumes can cause
serious injury or death if splashed in the
eyes or on the skin, inhaled, or swallowed.
1. Read HAZARDOUS FLUIDS on page 2.
2. Use fluids and solvents which are compatible with
the equipment wetted parts. Refer to the Technical
Data section of all equipment manuals. Read the
fluid and solvent manufacturer’s warnings.
WARNING
Tightening Screws Before First Use
After you unpack the pump, and before you use it for the
first time, check and retorque external fasteners. Retorque
the fluid cover screws first, then the manifold screws. This
keeps the manifolds from interfering with tightening the
fluid covers. See the Service section for torque specifica-
tions.
After the first day of operation, check and retorque the
fasteners again. Although the recommended frequency for
retorquing fasteners varies with pump usage, a general
guideline is to retorque fasteners every two months.
Grounding
FIRE AND EXPLOSION HAZARD
This pump must be grounded. Before oper-
ating the pump, ground the system as ex-
plained below. Also, read the section FIRE
AND EXPLOSION HAZARD, on page 3.
WARNING
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 equipment. Ground
all of this equipment.
D Pump: Connect a ground wire and clamp as shown in
Fig. 1. Loosen the grounding lug locknut (W) and
washer (X). Insert one end of a 12 ga (1.5 mm@) mini-
mum ground wire (Y) into the slot in the lug (Z) and
tighten the locknut securely. Connect the clamp end of
the ground wire to a true earth ground.
Figure 1
Y
W
X
Z
02646
D Air and fluid hoses: Use only grounded hoses with a
maximum of 500 ft (150 m) combined hose length to
ensure grounding continuity.
D Air compressor: Follow the manufacturer’s recommen-
dations.
D All solvent pails used when flushing: Follow the local
code. Use only metal pails, which are conductive. Do
not place the pail on a non-conductive surface, such as
paper or cardboard, which interrupts the grounding
continuity.
D Fluid supply container: Follow the local code.