Graco 312068M Assemble Hydraulic Piston and Insert in Cylinder, Insert Piston into Cylinder

7.Repeat the steps above to assemble the second rod bushing/port block assembly.

Assemble Hydraulic Piston and Insert in Cylinder

8.Place wear ring (108) in the center channel of hydraulic piston (104).

9.With the lip facing away from the center channel, place one u-cup seal (106) in each of the remaining two channels of the hydraulic piston.

10.Place one back-up ring (107) in the same channel as each of the u-cup seals on the side facing the center channel.

104

106
107 108	TI11277a
	107
	106

Insert Piston into Cylinder

11.Slide the hydraulic piston into the cylinder (102). If necessary, rest the cylinder on a vise or similar sur- face while pushing the piston into it.

102 1

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1 Apply lithium grease to the inside of each end of the cylinder.

Repair

Assembling Items onto Piston Shaft

12.With the rod bushing (103) facing away from the cyl- inder (102), slide the port block and rod bushing assembly over the rod tool and onto the shaft.

A

103

102

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13.Repeat with the other port block on the opposite end of the hydraulic piston shaft.

Attaching Retainer Plates and First Four Spacers

14.Place the assembly on a flat surface with the port hole on the two port blocks facing the same direc- tion.

15.Slide one retainer plate over the end of each port block.

16.Insert one tie rod into each of the four holes in the port blocks and retainer plates. Keep an equal amount of threads showing through the retainer plate on each side.

17.Rotate the assembly so that the port holes are now facing in towards your body and place the assembly on a flat surface.

1

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1 Make sure the port

holes are facing in towards your

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