Graco 965129, 965124 Operation, Maintenance, Pressure Relief Procedure, Startup and Adjustment

Operation

WARNING

DThis pump is designed to be used ONLY in pumping non-corrosive and non-abrasive lubri- cants and greases. Any other use of this pump can cause unsafe operating conditions and result in component rupture, fire, or explosion, which can can cause serious bodily injury, including injection.

DMoving parts can pinch or amputate your fin- gers or other body parts. When the pump is operating, the priming piston (located at the pump intake) and the air motor piston (located behind the air motor plates) move. NEVER Operate the pump with the air motor plates removed, and keep your fingers and hands away from the priming piston.

Pressure Relief Procedure

WARNING

SKIN INJECTION HAZARD

Fluid under high pressure can be in- jected through the skin and cause serious injury. To reduce the risk of an

injury from injection, splashing fluid, or moving parts, follow the Pressure Relief Procedure whenever you

DAre instructed to relieve the pressure

DStop dispensing

DCheck or service any of the system equipment

DInstall or clean the dispensing nozzles

1.Close the air regulators.

2.Close the supply pump’s bleed-type master air valve (required in this system).

3.Open the dispensing valve until pressure is fully relieved.

If you suspect that the dispensing valve, extension, or grease fitting coupler is clogged, or that pressure has not been fully relieved after following the steps above, VERY SLOWLY loosen the coupler or hose end coupling and relieve pressure gradually, then loosen completely, then clear the clog.

Startup and Adjustment

Open the bleed-type master air valve. Open the dispensing valve, and slowly open the air regulator until the pump is running smoothly. After all the air is purged, close the dispensing valve. The pump will start and stop as the valve is opened and closed.

CAUTION

Never allow the pump to run dry of the fluid being pumped. A dry pump quickly accelerates to a high speed and may damage itself. If your pump acceler- ates quickly or is running too fast, stop it immediately and check the fluid supply. If the supply container is empty and air has been pumped into the lines, prime the pump and lines with fluid, or flush the pump and leave it filled with a compatible solvent. Be sure to eliminate all air from the fluid system.

Use the air regulator (E) to control the pump speed and fluid pressure. See Fig. 2. Always use the lowest pressure necessary to obtain the desired results.

When you are finished using the pump for the day, always follow the Pressure Relief Procedure at left.

Maintenance

The Accessory air line oiler (D) provides automatic air motor lubrication. For daily manual lubrication, disconnect the air hose, place about 15 drops of light machine oil in the air inlet, reconnect the hose, and turn on the air supply to blow oil into the motor.

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