Graco Inc 237691, 308235, 235459 manual How to Clean the Spray Tip Clear a Spray Tip Obstruction

Page 7

Installation/Operation

How to Clean the Spray Tip

and Clear a Spray Tip Obstruction.

WARNING

To reduce the risk of fluid injection or splashing in the eyes or on the skin, do not hold a hand, body or rag in front of the spray tip when cleaning or checking a clogged tip. Point the gun toward the ground or into a waste container when checking to see if the spray tip is cleared.

Do not try to “blow back” paint; this is not an air spray gun.

Do not wipe fluid buildup off the gun or spray tip until pressure is relieved.

Cleaning during the day.

1.Follow the Pressure Relief Procedure, page 5.

2.Clean the front of the tip frequently during the day to help reduce buildup. Also clean the tip and tip guard at the end of each work day. Use a solvent- soaked brush to clean the spray tip.

Clearing an obstruction.

If the spray tip clogs while spraying, immediately stop spraying, then:

Gun 235–458 – with standard tip guard

1.Engage the trigger safety latch, open the pressure drain valve.

2.Remove the spray tip and blow out the obstruction by applying air to the front of the spray tip. Or, let the spray tip and gun nozzle soak to dissolve the obstruction. If it won’t dissolve, jar it out by tapping the back of the spray tip against a flat surface.

CAUTION

Never soak the entire gun in solvent. Prolonged exposure to solvent can ruin the packings.

Gun 235–459 and 237–691– with RAC IV tip guard

1.Engage the trigger safety latch. Rotate the RAC IV tip handle 180_. See Fig. 4.

2.Disengage the trigger safety latch. Trigger the gun into a pail or onto the ground to remove clog.

3.Engage the trigger safety latch. Rotate the tip handle to the spraying position.

4.If the tip is still clogged, lock the gun trigger safety, shut off the sprayer and disconnect the power source, and open the pressure drain valve to relieve pressure. Clean the spray tip as shown in manual 308–644, supplied with the RAC IV.

KEY

A Handle shown in spraying position. Turn handle 180_ and trigger gun to clear clog.

A

Fig. 4

￿￿8￿￿￿￿ 7

Image 7
Contents Model 235-458, Series C Model 235-457, Series CModel 237-691, Series B Model 235-459, Series DSymbols Table of ContentsMoving Parts Hazard Injection HazardRecoil Hazard Toxic Fluid Hazard Fire and Explosion HazardSystem Requirements Installation/OperationPressure Relief Procedure How to Use the Gun Trigger SafetyHow to Adjust the Spray Pattern How to Use the GunCleaning during the day How to Clean the Spray Tip Clear a Spray Tip ObstructionHow to Flush the Gun How to Check the Gun Diffuser OperationNeedle Replacement Service38235 Model 235-457, Series C PartsPage Tools AccessoriesFilters Swivels and Whip HosesGraco Phone Number Technical DataChanged Model 237-691, Series C To Model 237-691, Series B Manual Change SummaryWarranty Graco Warranty and Disclaimers