Graco 238512, 238515, 238511 Grounding, Model shown has Bend rigid Extension

Installation

10.Thread the sealing nut (5c, 6c, or 7c) onto the extension (5a) or street elbow (6d or 7d), thread the extension or elbow in at least three full turns, position it for proper alignment, and tighten the sealing nut. The PTFE seal on the sealing nut must face the valve housing. See Fig. 4.

NOTE: The flexible extension (6a) can also be threaded directly into the meter outlet without the street elbow or sealing nut. See the note in the Parts Drawing on page 19.

11.Thread the new nozzle (5b, 6b, or 7b) onto the extension, and, with an open-end adjustable wrench, tighten it firmly. See Fig. 4.

NOTE: Only tighten the nozzle with the wrench on the flats of the nozzle bushing. Do not disas- semble the bushing from the nozzle. Disas- sembly will affect the performance of the nozzle.

WARNING

Do not use Graco’s old nozzle (Part No. 203655) or any other manual shut-off nozzle on the PM5 extension. You must use the new automatic nozzle that is provided with the PM5, or the meter could be damaged. Do not use any sealant material.

12.Open all dispense position shut-off valves, and start the pump to pressurize the system. See the Operation section for proper operation of meter.

13.To ensure dispensing accuracy, purge all air from the fluid lines and dispense valve before you use it. Set the system flow to the desired flow rate, which is typically 1.5 gpm. Do not exceed a 5-gpm flow rate.

Slide onto hose before connecting. 4

hose fitting

3

TI0328

Fig. 3

6 309377

Model shown has

75_ bend rigid

extension

hose

4

5c

5a

nozzle bushing

Nozzle is not serviceable.

5b

TI0327

Fig. 4

Grounding

Proper grounding is an essential part of maintaining a safe system.

To reduce the risk of static sparking, ground all system components according to local and national electrical codes. Refer to the user manuals for the pump and other system components, and ground the following:

DPump: Follow the manufacturer’s recommend- ations.

DAir and Fluid hoses: Use only grounded hoses.

DAir compressor: Follow the manufacturer’s recom- mendations.

DFluid supply container: Follow the local code.

To maintain grounding continuity when flushing or relieving pressure, always hold a metal part of the valve firmly to the side of a grounded metal pail, then trigger the valve.