Graco 312068M important safety instructions Side Shown, Piston Assembly

Page 16

Parts

Piston and Cylinder Seals

A Side Shown

219

6

9

4

36 27

29

6

34

13

22

10

11

9

14 2

24

12

1

35

16 4	17
	17
26 4
31

	23
	5
	8 3
	B side of pump is same as A side except items 31,
	34, 35, and 36 are reversed.
1	Apply supplied sealant to threads
2	Torque to 75 ft-lb (101.3 N•m)
3	Torque to 45 ft-lb (60.8 N•m)
4	Seal must be pressed straight into housing

5	See Torque Specification table for torque
	according to pump size
6	Part not used on Model P7758-255773

TI9780b

Piston Assembly

3

TI9778a

28

18 15 25 1

5

#28 Piston Assembly

Item 25 Torque Specification

Pump Size	Torque
30	130 in-lb (14.7 N•m)
28, 40, 48, 60	22 ft-lb (29.7 N•m)
80, 88, 96, 120, 140	45 ft-lb (60.8 N•m)

25 18

15

28

1

r_24f290_312068

16

312068M

Image 16

Contents Proportioning Pumps Contents ModelsPressure Relief Procedure Preventive MaintenanceRepair FlushingPumpline Disassembly Pumpline ReassemblyRepair Pump Base Disassembly Pump Base ReassemblyPiston and Cylinder Seals #28 Pump SizeCylinder Assembly Seat Cylinder in Bore Seal Alignment Pressed SealHydraulic Cylinder Tools RequiredAssemble Rod Bushing to Port Block Assemble Hydraulic Piston and Insert in Cylinder Insert Piston into CylinderAssembling Items onto Piston Shaft Attaching Retainer Plates and First Four SpacersInstalling Lube Adapter Installing Hex Clevises and Baffle Jam NutHold stationary Installing Final Four Spacers Assembling ManifoldParts Pumpline#28 Piston Assembly Item 25 Torque Specification Pump Size Piston AssemblySide Shown Part Description Qty Cylinder Seal Kits Includes Parts 13, 16 Proportioning PumpKit Piston Seal Kits Includes Parts 15, 18 Proportioning PumpApply high strength thread sealant to threads Part Description RingParts Technical Data Category DataGraco Standard Warranty Graco Information