Graco XP70 Mix Manifold Assembly, Fluid Circulation Manifold, Replace Drain Valve Cartridges

Repair

Mix Manifold Assembly

1.Follow Pressure Relief Procedure, page 20.

2.Disconnect the fluid hose (25) and the flush hose from the mix manifold (36).

3.Loosen the union fittings (306) that connect to the mix manifold adapter fittings.

4.Remove the mix manifold assembly (36).

5.See mix manifold manual for service and repair instructions.

306

36

r_571101_3a0420a_38a

Fluid Circulation Manifold

See FIG. 9.

1.Flush before repairing equipment, if possible. See

Empty and Flush Entire System (new sprayer or end of job), page 27.

2.Follow Pressure Relief Procedure, page 20.

3.Disconnect all fluid hoses from the fluid circulation manifold (35).

4.Remove the mix manifold it is assembled to the fluid circulation manifold. See Mix Manifold Assembly for instructions.

5.Loosen the two screws (37) that secure the manifold (35) to the cart (1).

6.Remove the two screws (37) and fluid circulation manifold (35) from the cart (1).

1

35

37

r_571101_3a0420a_39a

FIG. 9: Fluid Circulation Manifold

Replace Drain Valve Cartridges

1.Flush before repairing equipment, if possible. See

Empty and Flush Entire System (new sprayer or end of job), page 27.

2.Follow Pressure Relief Procedure, page 20.

3.Ensure handle (312) is in the down position. Remove the screws (313), jam nut (304), handles (311), handle rod (312), clips (318), and springs (320).

311

312 313

302

		311
304		313
		302
318	320
	302	304
		320
		318
		r_258988_3a0420a_2b

4.Unscrew both cartridge valves from the manifold.

5.Apply blue threadlock to new cartridge valves (302) and install in the manifold. Torque to (28-32 ft-lbs. (38-43 N•m).

6.Place a spring (320) over each valve stem. Place a clip (318) in each valve stem groove to retain springs.

7.Slide on a handle (311) and turn the stem approxi- mately 90° until you feel it fully lock against the valve seat. Repeat for opposite side.

36 3A0420H