Wall Mount Packages; Grounding; Flush Before Using Equipment - Graco Merkur ES Instructions Manual

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Installation

Wall Mount Packages

1. Be sure the wall can support the weight of the
pump, bracket, hoses and accessories, as well as
the stress caused during operation.
2. Position the wall bracket at a convenient height. Do
not stretch the suction hose tight; let it hang to
assist fluid flow into the pump. For ease of
operation and service, make sure the pump air
inlet, fluid inlet, and fluid outlet ports are easily
accessible.
3. Using the wall bracket as a template, drill mounting
holes in the wall. Hole diameters and wall mounting
dimensions are shown on page 45.
4. Attach the bracket to the wall. Use screws that are
long enough to keep the pump from vibrating
during operation.
NOTE: Be sure the bracket is level.

Grounding

The equipment must be grounded. Grounding
reduces the risk of static and electric shock by
providing an escape wire for the electrical current
due to static build up or in the event of a short circuit.
1. Pump: See F
. 1. Verify that the ground wire (26) is
IG
attached to the ground screw (23), and the screw is
tightened securely to the adapter plate (10). Use
any of the three threaded holes in the adapter plate.
Connect the other end of the ground wire to a true
earth ground.
8
10
26
23
F
. 1. Ground Wire
IG
2. Air and fluid hoses: Static electricity may build up
when fluids flow through pumps, hoses, and
sprayers. At least one hose must be electrically
conductive, with a maximum of 500 ft. (150 m)
combined hose length to ensure grounding
continuity. Check electrical resistance of hoses. If
total resistance to ground exceeds 25 megohms,
replace hose immediately.
3. Air compressor: follow manufacturer's
recommendations.
4. Spray gun: ground through connection to a
properly grounded fluid hose and pump.
5. Fluid supply container: follow your local code.
6. Object being sprayed: follow your local code.
7. Solvent pails used when flushing: follow your
local code. Use only metal pails, which are
conductive, placed on a grounded surface. Do not
place the pail on a nonconductive surface, such as
paper or cardboard, which interrupts the grounding
continuity.
8. To maintain grounding continuity when flushing or
relieving pressure, hold a metal part of the spray
gun firmly to the side of a grounded metal pail, then
trigger the gun.

Flush Before Using Equipment

The equipment was tested with lightweight oil, which is
left in the fluid passages to protect parts. To avoid
contaminating your fluid with oil, flush the equipment
with a compatible solvent before using the equipment.
See Prime the Pump, page 10.
ti16282a
3A0732U

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