User manual GRACO OP-139

[. . . ] This eliminates the possibility of a continuous flow of oil even if the conveyor should stop with the trip valve depressed or with the proximity switch activated. With the proximity switch version, when input is received, the solenoid is energized allowing air through to the pump actuating the piston and allowing a metered amount of lubricant to be ejected from one or more nozzles. The pneumatic trip version a trip valve allows air though to the pump also resulting in a metered amount of lubricant to be ejected from one or more nozzles. 4. 1 Typical Sensing & Delivery Arrangements (Proximity Switch) SK-648 SK-649 SK-651 SK-653 SK-657 SK-658 LUBE SYSTEM DIAGRAM SK-490 5. 0 INSTALLATION Before installing the OP-139A Lubricator System, check to assure the following: · · · 5. 1 Chain is stable and tight. [. . . ] It should be a quick, clean shot in solid form. If it appears to be atomized, the air pressure is too high; if it appears lazy and is not hitting pin joint, air pressure is too low. 5. 7 Nozzle Adjustment With conveyor running and lubricator engaged, see that nozzle tubes are properly positioned and oil is being delivered to chain pins at the proper point. Nozzles can be bent slightly to accomplish this if required. 5. 8 Initial Break-In It is advisable to check lubricator performance after one or two weeks of operation to confirm installation and nozzle adjustments were made properly and are secure. WARNING: Nozzle adjustments must be made with the conveyor off. Failure to turn the conveyor off may result in personal injury or equipment damage. UNIT DIMENSIONS SK-489 6. 0 CONTROLS The controls assembly includes a gravity fed pump, manifold, and air pressure regulator. 7. 0 MAINTENANCE Regular cleaning and maintenance prolongs the life and improves the performance of the lubricator. CAUTION: When cleaning the lubricator, keep cloth away from nozzle tips, inside of reservoir, and pump parts. Lint can clog ports or cause nozzle capillary leakage. Clean and inspect unit for visible damage. Replace missing, broken, or malfunctioning parts. Routinely check lubricant level in reservoir. Check to see that air gauge indicates 50-100 PSI (300-680 kPa). Optimum setting depends on viscosity of oil being dispensed. Manually cycle the pneumatic trip valve to see that lubricant is dispensing correctly. Be sure lines are clear and unrestricted. Check lubricant shot accuracy regularly to guarantee that nozzles are aligned properly and are dispensing lubricant to the target points. SK-488 8. 0 GENERAL TROUBLESHOOTING CAUSE Empty reservoir Pump air locked. Back out the stop pug (not necessary to remove), allow the pump to cycle until oil is being delivered around the threads of the stop plug without the presence of air bubbles. Make certain stop plug Oring is in place at base of pump. Check inlet fitting to the pump for snug fit. [. . . ] Remove nozzle assembly and clean in solvent. If after reinstallation the nozzles continue to drip, they must be replaced. Pump cycles once as power is applied, but not afterwards. Oil splash off of the wear point. Trip valve improperly adjusted or defective, or proximity switch is defective. Air pressure set too high. Adjust or replace trip valve or proximity switch. [. . . ]