Graco Sprayer XM7N00

Use the following tests to check for proper mix and integration.

At low pressure, normal flow rate, and without a spray tip installed, dispense a 1/2 in. (12.7 mm) bead of material onto foil until multiple changeovers of each pump have occurred. Fold the sheet of foil over the fluid then peel it back and look for unmixed material (appears marble-like).

Spray a single continuous pattern on foil at typical pressure setting, flow rate, and tip size until multiple changeovers of each pump have occurred. Trigger and de-trigger at typical intervals for the application. Do not overlap or cross over your spray pattern.

Check curing at various time intervals, listed on the material data sheet. For example, check for dry to touch by running your finger along the entire length of the test pattern at the time listed on the data sheet. NOTE: Spots that take longer to cure indicate insufficient integration.

Spray material onto metal substrate. Look for variations in color, gloss, or texture that may indicate improperly catalyzed material.

Warning: Freezing temperatures can cause damage that may result in the heating fluid leaking into the terminal enclosure. To avoid damage, do not expose the unit to freezing conditions.

Is the heating fluid level within the acceptable range?

Sign off on the heating fluid level check

NOTICE: To prevent air motor failure and possible damage to equipment, always keep the air motor properly lubricated using Air Motor Lubricant.

After the first 100 hours, or two weeks of operation, change the gear reducer oil.

Was the gear reducer oil changed?

Sign off on the gear reducer oil change

Once a week check, clean, and replace (if needed) the following filters. Be sure to follow the Flush, page 44, prior to performing filter maintenance.

• Both pump filters; see your pump manual for instructions.

• Main air inlet manifold filter; see your sprayer repair manual, Replace Air Filter Element section, for instructions.

• Air regulator filter (5 micron) on air control assembly; see your sprayer repair manual, Replace Air Filter Element section, for instructions.

• B side mix manifold strainer; see your mix manifold manual.

Once a week, check and tighten throat seals on both pumps and dosing valves. Be sure to follow Flush Mixed Manifold, Hose, and Spray Gun, page 44, priorto tightening seals.

Adjust the packing nut weekly so it is just tight enough to prevent leakage. Use a spanner wrench or a 0.25 in. (6.3 mm) diameter rod to tighten the nut. Do not over-tighten.;

NOTICE: To prevent air motor failure and possible damage to equipment, always keep the air motor properly lubricated using Air Motor Lubricant.

Is the air motor operating sluggishly or inefficiently?

If yes, proceed to flush the air motor as per the agitator manual.

Upload a photo of the air motor after flushing

Sign off on the air motor flushing