Graco Fast-Flo A Series Instructions-Parts List Manual page 7

Installation
System Accessories
Refer to F . 2 and the Accessories section.
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NOTE: To ensure maximum pump performance, be
sure that all accessories used are properly sized to meet
your system's requirements.
Most models are supplied with a needle-type air control
valve (K) at the pump air inlet. Model 226951 is
equipped with an air regulator kit (CC) instead (see F
3). All models are supplied with an air line quick
disconnect coupler (L) to connect the air line to thepump
and accessories.
WARNING
A bleed-type master air valve (D) and a fluid drain
valve (G) are required in your system, to help reduce
the risk of serious injury, including splashing fluid 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 (D) relieves air
trapped between this valve and the pump after the
pump is shut off. Trapped air can cause the pump to
cycle unexpectedly and result in serious injury,
including amputation. Locate the valve close to the
pump.
The fluid drain valve (G) helps relieve pressure in the
displacement pump, hose, and dispensing valve when
shutting off the pump. Actuating the dispensing valve
to relieve pressure may not be sufficient, especially if
there is a clog in the hose or the dispensing valve.
For automatic air motor lubrication, install an air line
lubricator (C) downstream from the air regulator (if
supplied) and all other accessories. Install a bleed-type
master air valve (D) close to the pump. Next, install the
air regulator (CC), if supplied. Install an air line filter (E)
upstream from all other accessories, to remove harmful
dirt and moisture from the compressed air supply.
Using a suitable adapter, install the male disconnect pin
fitting (J) in the air filter inlet. Install the air line quick
disconnect coupler (L) on the air hose (F), but do not
connect it to the pin fitting yet.
307427ZAF
Connect an electrically conductive fluid hose (M) to the
3/4 npt(f) fluid outlet.
Model 226951 Only
Using moderate force, extend the pump suction tube,
insert the pump into the drum or tank bung hole, and
screw the bung adapter (B) tightly into the bung hole.
Lift the pump about 13 mm (0.5 in.) and tighten the bung
adapter (B) screw to hold the pump. Loosen the vent
plug (A). Refer to F
.
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To prevent damaging the o-ring seals inside the suc-
tion tube, do not use excessive force when extending
the suction tube.
All Other Models
Refer to F . 2 and to the mounting accessories shown
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on page 34 for pump mounting methods.
Model 226951 Shown
F . 3
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. 2.
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CAUTION
Installation
7