Mountings, Air Line, Fluid Suction Line | Graco 308441ZAD instruction

Installation

Mountings

CAUTION

The pump exhaust air may contain contaminants. Ventilate to a remote area if the contaminants could affect your fluid supply. See Air Exhaust Ventilation on page 9.

1.Be sure the mounting surface can support the weight of the pump, hoses, and accessories, as well as the stress caused during operation.

2.For all mountings, be sure the pump is bolted directly to the mounting surface.

3.For ease of operation and service, mount the pump so the air valve cover (2), air inlet, and fluid inlet and outlet ports are easily accessible.

4.Rubber Foot Mounting Kit 236452 is available to reduce noise and vibration during operation.

Air Line

WARNING

A bleed-type master air valve (B) is required in your system to relieve air trapped between this valve and the pump. Trapped air can cause the pump to cycle unexpectedly, which could result in serious injury, including splashing in the eyes or on the skin, injury from moving parts, or contamination from hazardous fluids. See Fig. 2.

1.Install the air line accessories as shown in Fig. 2. Mount these accessories on the wall or on a bracket. Be sure the air line supplying the acces- sories is grounded.

a.Install an air regulator (C) and gauge to control the fluid pressure. The fluid outlet pressure will be the same as the setting of the air regulator.

b.Locate one bleed-type master air valve (B) close to the pump and use it to relieve trapped air. See the WARNING above. Locate the other master air valve (E) upstream from all air line accessories and use it to isolate them during cleaning and repair.

c.The air line filter (F) removes harmful dirt and moisture from the compressed air supply.

2.Install a grounded, flexible air hose (A) between the accessories and the 1/2 npt(f) pump air inlet

(N). See Fig. 3. Use a minimum 1/2 in. (13 mm) ID air hose. Screw an air line quick disconnect cou- pler (D) onto the end of the air hose (A), and screw the mating fitting into the pump air inlet snugly. Do not connect the coupler (D) to the fitting until you are ready to operate the pump.

Installation of Remote Pilot Air Lines

1.Refer to Parts Drawings. Connect air line to pump as in preceding steps.

2.Connect 1/4 in. O.D. tubing to push type connec- tors (14) on air motor of pump.

NOTE: by replacing the push type connectors, other sizes or types of fittings may be used. The new fittings will require 1/8 in. npt threads.

3.Connect remaining ends of tubes to external air signal, such as Graco’s Cycleflo (P/N 195264) or Cycleflo II (P/N195265) controllers.

NOTE: the air pressure at the connectors must be at least 30% of the air pressure to the air motor for the pump to operate.

Fluid Suction Line

1.Use grounded fluid hoses (G). The pump fluid inlet (R) is 1–1/2 in. npt(f). Screw the fluid fitting into the pump inlet securely.

2.If the fluid inlet pressure to the pump is more than 25% of the outlet working pressure, the ball check valves will not close fast enough, resulting in inefficient pump operation.

3.At inlet fluid pressures greater than 15 psi

(0.1 MPa, 1 bar), diaphragm life will be shortened.

4.See the Technical Data on page 30 for maximum suction lift (wet and dry).

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