Service

Disconnecting the Displacement Pump

1.Flush the pump if possible. Stop the pump at the bottom of its stroke. Follow the Pressure Relief Procedure on page 8.

2.Disconnect the air and fluid hoses. Remove the pump from its mounting. Note the relative position of the pump’s fluid outlet (R) to the air motor’s air inlet (S).

3.Unscrew the tie rod locknuts (102) from the tie rods (103). Remove the cotter pin (111). Unscrew the displacement rod (13) from the air motor (108). Carefully pull the displacement pump (101) off the air motor (108). Inspect the o-ring (110). See Fig 4.

4. Refer to page 13 for displacement pump service.

S

To service the air motor, refer to the separate air

 

motor manual (306982 or 307043), supplied.

 

Model 224342 Shown

108

Reconnecting the Displacement Pump

1.Lubricate the o-ring (110) and check that it is in place on the displacement rod (13). Orient the pump’s fluid outlet (R) to the air motor’s air inlet

(S) as was noted in step 2 under Disconnecting the Displacement Pump. Position the displace- ment pump (101) on the tie rods (103). See Fig 4.

2.Screw the locknuts (102) onto the tie rods (103) loosely. Screw the displacement rod (13) into the shaft of the air motor (108) until the pin holes in the rod and shaft align. Install the cotter pin (111).

3.Apply thread sealant to the pump fluid outlet (R) and the threads of the fluid hose. Mount the pump and reconnect all hoses. Reconnect the ground wire if it was disconnected during repair. Tighten the packing nut/wet-cup (2) so it is just snug -- no tighter. Fill the wet-cup with Graco Throat Seal Liquid or compatible solvent.

4.Tighten the tie rod locknuts (102) evenly, and torque as shown in Fig 4.

5.Start the pump and run it at about 40 psi (0.3 MPa, 2.8 bar) air pressure, to check that it is operating properly.

6.Check for fluid leakage at the packing nut/wet-cup

(2). Follow the Pressure Relief Procedure on

page 8 before tightening the packing nut/wet-cup.

12 308116

 

 

110

1

2

103

13

 

 

 

111

 

 

 

2

 

R 3

2102

101

1

0194

Lubricate.

2

Model 224342: Torque to 20--30 ft-lb (27--41 NSm).

Models 224343, 902147, 247147: Torque to 10--15ft-lb

 

 

(14--20 NSm).

3

Apply sealant, as required.

Fig. 4

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Image 12
Graco 308116T Service, Disconnecting the Displacement Pump, Reconnecting the Displacement Pump
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308116T specifications

The Graco 308116T is an advanced airless paint sprayer designed for both professional and DIY users, ideal for tackling a variety of painting tasks with precision and efficiency. This model exemplifies Graco’s commitment to innovation and user-friendliness, providing exceptional performance for projects of all sizes.

One of the standout features of the Graco 308116T is its TrueAirless Technology, which allows users to spray directly from the paint can without the need for thinning. This feature not only saves time but also ensures a smooth and even application of paint, allowing for a professional finish. With a maximum pressure of 3,000 PSI, this sprayer is capable of handling a wide range of coatings, including heavier materials, making it suitable for both residential and commercial applications.

The Graco 308116T also boasts an adjustable spray pattern, enabling users to switch between a wide fan pattern for larger surfaces and a narrower pattern for detailed work. This versatility is enhanced by the innovative RAC IV SwitchTip technology, which allows users to reverse the tip for easy clog clearance, minimizing downtime and frustration during projects.

In terms of portability, the Graco 308116T is equipped with a lightweight yet durable frame, ensuring easy transport and mobility on job sites. The integrated carrying handle adds to its convenience, making it easy to maneuver around different areas as needed.

Another significant characteristic of the Graco 308116T is its high-efficiency airless pump. This advanced pump design delivers consistent pressure and a steady flow of paint, improving productivity and reducing paint waste during application. The unit is also designed for easy clean-up after use, with a simple system that allows for quick flushing of the paint system.

Additionally, durability is a key aspect of the Graco 308116T. Constructed with high-quality materials, it is built to withstand the rigors of frequent use while maintaining performance over time. Its robust design makes it suitable for a wide range of applications, from painting walls and ceilings to tackling outdoor projects.

Overall, the Graco 308116T airless paint sprayer combines advanced technology with user-friendly features, delivering exceptional performance and versatility. Whether you’re a seasoned professional or a DIY enthusiast, this sprayer is an excellent choice for achieving flawless finishes with ease.
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