Graco P39LCS, P40RCM, P20LCM Repair, Disconnect Displacement Pump, Required Tools

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Repair

Repair

Required Tools

•Torque wrench

•Hammer

•Packing nut wrench (supplied with displacement pump)

•Set of socket wrenches

•Set of adjustable wrenches

•Loctite® 2760™ or equivalent

•Brass rod (pumps with 500cc displacement pumps only)

•Torque wrench with claw foot (pumps with 60cc and 500cc displacement pumps only)

1.Flush pump; see Prime/Flush, page 13. Stop pump at bottom of its stroke. Follow Pressure Relief Pro- cedure, page 12.

2.Disconnect air hose.

If your system includes a remote DataTrak, discon- nect the air motor harness from the motor as well.

Disconnect Displacement Pump

Keep hands and fingers away from the priming piston during operation and whenever the pump is charged with air to reduce the risk of injury. On the pump down- stroke the priming piston extends beyond the intake housing to pull the material into the pump. The priming piston works under extreme force. During operation and whenever the pump is charged with air, the priming piston can severely injure or amputate a hand or finger, or break a tool, caught between it and the intake hous- ing. Always relieve the pressure before checking, clear- ing, cleaning, flushing, or servicing any part of the pump.

On Premier air-powered pumps, the rocker arms (located beneath the rocker arm covers) move when air is supplied to the motor. Never operate the pump with the rocker arm covers removed.

Air Motor

Harness

Air Hose

ti10515a

FIG. 14

3.Disconnect fluid hose. Hold fluid outlet fitting with a wrench to keep it from being loosened while you dis- connect fluid hose.

Fluid Hose

ti10516a

FIG. 15

4.Remove platen from displacement pump. Refer to Supply Units Repair-Parts manual 313527 for instructions.

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312376L

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Contents Check-MatePump Packages P20LCM Model Shown P39LCS Model Shown P40RCM Model ShownContents Related ManualsModels Skin Injection Hazard Equipment Misuse Hazard Component Identification, Supply Unit Installation CM14BA Model ShownKey CM7B1G Model Shown Component Identification, Typical Installation Installation GroundingAir Line Accessories System AccessoriesMounting Accessories Fluid Line AccessoriesDisplacement Pump Torque SetupFollow Pressure Relief Procedure on Wet CupPressure Relief Procedure For D200s, D200, D60 and S20 Air Controls See FIGFor D200s, D200, D60, and S20 Air Controls D200s, D200,D60, and S20 SystemsFor L20c Air Controls L20c Air ControlsOvernight Shutdown Follow Pressure Relief Procedure,Shutdown For D200s, D200, D60, and S20 Supply SystemsTroubleshooting Problem Cause SolutionTroubleshooting Disconnect Displacement Pump RepairRequired Tools Ti10508a Reconnect Displacement Pump Repair 312376L Parts Pump Package Parts ListReed Switch Assembly NXT200, NXT400, NXT700, NXT1200, and NXT1800 Air MotorsAdapter Bracket 15M222 NXT2200, NXT3400, and NXT6500 Air MotorsModel P40RCM Shown Model P39LCS ShownPump Packages with L060xx Displacement Pumps Common PartsVarying Parts P20SCS Pump Packages with L100xx Displacement Pumps Ref. Part Description QtyPump Packages with L200xx Displacement Pumps Coupling Cover Hairpinw BracketTie Rod Assy Coupler Lanyard Adapter Pump Packages with L250xx Displacement Pumps CouplingRod Assy Coupler Pump Packages with L500xx Displacement Pumps NutTie Rod Coupling Dimensions Pump Packages with NXT 2200, NXT 3400, NXT 6500 Air MotorsPump Package Dimensions Technical Data Displacement Flow Rate gpm lpmCalculate Pump Air Flow/Consumption Performance ChartsCalculate Fluid Outlet Pressure Key Air PressurePsig MPa, bar Cycles/min Fluid Pressure in psig MPa, bar Air Air Flow in Scfm m3/min Bar Cycles/min MPa, bar Performance Charts 312376L Graco Standard Warranty Graco Information

P40RCM, P39LCS, P20LCM specifications

Graco, a renowned brand in the world of fluid handling equipment, has developed a series of versatile and high-performance products tailored for various applications. Among these, the Graco P20LCM, P39LCS, and P40RCM stand out for their innovative features, technologies, and characteristics that enhance productivity and efficiency in professional environments.

The Graco P20LCM is a lightweight and portable paint sprayer designed for small to medium-sized projects. It features Graco’s exclusive ProConnect technology, which allows for quick and easy pump replacement, minimizing downtime. The P20LCM also incorporates a SmartControl system that provides consistent pressure and prevents overspray for a flawless finish. Its flexible suction tube allows for drawing paint directly from a bucket, while its compact design ensures ease of transport, making it ideal for contractors and DIY enthusiasts alike.

In contrast, the Graco P39LCS embodies a robust solution tailored for larger projects. This airless paint sprayer is engineered for high efficiency, capable of handling thicker coatings with ease. It boasts a powerful hydraulic system that maintains pressure, ensuring an even application over large surfaces. The P39LCS integrates the Grip and Guard with LED indicators, enhancing user experience and safety. Additionally, its durable construction and advanced filtration system help in prolonging the lifespan of the equipment, reducing maintenance requirements and downtime.

The Graco P40RCM is an advanced model that offers unrivaled versatility and control, making it a preferred choice for professional contractors. This sprayer features advanced electronic controls that enable users to adjust pressure settings on the fly, offering ultimate control over the application process. The P40RCM is compatible with a wide range of coatings, including paints, stains, and sealants, providing flexibility for diverse job needs. Its AutoPrime technology simplifies the priming process, allowing for faster setup and minimal manual intervention. Furthermore, rugged wheels and a durable frame enhance maneuverability and resilience on job sites.

Together, the P20LCM, P39LCS, and P40RCM encapsulate Graco’s commitment to quality and innovation. With user-friendly features, advanced technologies, and robust designs, these products are engineered to meet the demands of professionals and improve efficiency while delivering superior results in every application.
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