Graco Inc 237000, 307741, 235525, 220106, 03695A manual

Service

NOTE: Refer to Fig. 8 for steps 11 to 16.

11.Place the gasket (38*) on top of the cylinder (36).

12.Thread the hub (10) onto the trip rod (40). Lift the rod and grasp it with the padded locking pliers. Screw the hub down as far as possible by hand.

13.Install the air valve housing (5), lockwasher (6), and trip rod nut (7) so the nut is flush with the top of the trip rod (40). Tighten the nut 2 turns more, so there is 1 mm (0.04 in.) clearance between the top of the rod and the top of the nut. Hold the flats of the trip rod nut with a wrench. With another wrench, tighten the hub (10) to 28–34 NSm (21–25 ft-lb). Release the pliers.

14.Place the plate seals (1) on the valve plates (2). Place the plates in the air manifold (20). Install the adjusting screw (11) and nut (12) assemblies in all four corners of the plates. Important: Adjust the screws and nuts evenly so they snugly hold the plates. Do not exceed 4 NSm (35 in-lb).

15. Install the rubber pad (8) in the air manifold (20).

NOTE: On Model 235525, check that the plugs (9) are in place in the air manifold exhaust ports (E).

On Model 237000, check that the tubing (82) is se- curely attached to the air manifold (20). See page 22.

16.Place the springs (4) and air director valves (3) into the valve housing (5). Hold the springs and valves in place and install the air manifold (20) over the housing, making sure it is properly ori- ented. The exhaust ports (E) must be oriented to the optional outlet (L) of the base as shown. Be sure the valve housing (5) moves up and down freely, and then install and tighten the screws (31) and lockwashers (13) holding the manifold (20) to the cylinder (36).

Detail of Air Manifold and Valve Plates

20

8

20

31 4

13

7

			E
		2
		1	Detail of Valve Housing
1			3
	12
2
		40
	11		4
		3
		7	1
			40

5

C

1	Make top of nut flush with top of trip
	rod, then tighten 2 turns more.	02963

Top of nut (7) must be 1 mm (0.04”) from end of rod (40).

6

5

4

3

10 2

38*

36

2Torque to 28–34 NSm (21–25 ft-lb)

3Tighten snugly. Do not exceed 4 NSm (35 in-lb).

4 Torque to 34 NSm (25 ft-lb).

Fig. 8

07282A

L

16 307741