Installation - Graco Series B Instructions-Parts List Manual

NOTE: The reference numbers and letters in parenthe-
ses in the text refer to the callouts in the figure
drawings and the Parts Drawing.
The Typical Installation on page 4 is only a guide to se-
lecting and installing required and optional accessories.
For assistance in designing a system to suit your particu-
lar needs, contact your Graco representative or Graco
Technical Assistance (see back page).
Accessories
WARNING
A bleed–type master air valve (A) and a fluid drain
valve (B) are required in your system. These acces-
sories reduce the risk of serious bodily injury includ-
ing splashing in the eyes or on the skin, and injury
from moving parts if you are adjusting or repairing
the pump.
The bleed–type master air valve relieves air
trapped between it and the pump after the air is shut
off. Trapped air can cause the pump to cycle unex-
pectedly. Locate the valve close to the pump.
The fluid drain valve assists in relieving fluid pres-
sure in the displacement pump, hose and spray gun;
triggering the spray gun to relieve pressure may not
be sufficient.
Refer to the Typical Installation drawing on page 4, and
ACCESSORIES on page 17. Be sure the accessories
are adequately sized to meet the system's requirements.

INSTALLATION

Mount the pump to suit the type of installation planned.
Be sure the pump is 1/2 in. (13 mm) off the bottom of the
supply container. If the pump is mounted in a ram or an
elevator, refer to the manual supplied with the ram/eleva-
tor for installation and operation instructions. The Typical
Installation on page 4 shows the plumbing for an elevator
on each pump.
Install the air line accessories in the order shown in the
Typical Installation drawing. The air line lubricator (S)
provides automatic air motor lubrication. The bleed–type
master air valve (A) is used to relieve air pressure. Be
sure the valve is easily accessible from the pump. The air
filter/regulator assembly (C) filters and regulates the
compressed air. To control pump speed and fluid outlet
pressure, adjust the pump air inlet pressure with the reg-
ulator (21) mounted on the pump.
On the fluid line, install a fluid filter (E) with shutoff
valves (F) to isolate it for cleaning. Where the supply and
return lines meet, install a fluid pressure regulator (G). In
a two–pump system, install Y-adapter (H) at the begin-
ning and end of the supply and return lines.
Before operating the pump, ground the system as
explained under FIRE OR EXPLOSION HAZARD
and Grounding on page 3.
GROUNDING
WARNING
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