Graco D75, DS5, D82, D72, D85, DR2, DR5, DS2, D81 important safety instructions Reassembly

Service

1Insert narrow end first.

2Grease.

3Install with lips facing narrow end of piston (11).

4Insert wide end first.

10{H 2 3

11 4

12

217{H 15 16 1

Reassembly

1.	If you removed the bearings (12, 15), install new
	ones as explained on page 22. Reassemble the
	fluid section.
2.	On aluminum center housing models, install the
	valve plate seal (9{) into the groove at the bottom
	of the valve cavity. The rounded side of the seal
	must face down into the groove. See Fig. 10.
3.	Install the valve plate (8H) in the cavity. On alumi-
	num center housing models, the plate is reversible,
	so either side can face up. Install the three screws
	(3), using a Torx (T20) screwdriver or 7 mm (9/32”)
	socket wrench. Tighten until the screws bottom out
	on the housing. See Fig. 10.
4.	Install an o-ring (17{H) on each pilot pin (16).
	Grease the pins and o-rings. Insert the pins into
	the bearings (15), narrow end first. See Fig. 9.
5.	Install a u-cup packing (10{H) on each actuator

Fig. 9

04159

piston (11), so the lips of the packings face the

narrow end of the pistons. See Fig. 9.

1	Rounded side must face down (aluminum	3 2
	center housing models only).

2Tighten screws until

they bottom out on the 8H

housing.

9{ 1

6.	Lubricate the u-cup packings (10{H) and actuator
	pistons (11). Insert the actuator pistons in the
	bearings (12), wide end first. Leave the narrow
	end of the pistons exposed. See Fig. 9.
7.	Grease the lower face of the pilot block (18{H) and
	install so its tabs snap into the grooves on the
	ends of the pilot pins (16). See Fig. 8.
8.	Grease the o-ring (6{H) and install it in the valve
	block (7{). Push the block onto the valve carriage
	(5). Grease the lower face of the valve block. See
	Fig. 8.
9.	Install the valve carriage (5) so its tabs slip into the
	grooves on the narrow end of the actuator pistons
	(11). See Fig. 8.
10.	Align the valve gasket (4{H) and cover (2) with the
	six holes in the center housing (1). Secure with six
	screws (3), using a Torx (T20) screwdriver or 7
	mm (9/32”) socket wrench. Torque to 28 to 33 in-lb

Fig. 10

04160

(3.2 to 3.7 N.m). See Fig. 7.

308443 17