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© SprayTECH.  All rights reserved.

Fluid Section Assembly

(Stand and Low Boy Cart P/N 0551603)

(Upright Cart P/N 0551602)

1

7

8

9

10

11

12

13

14

15

16

17

18

19

20

2

3

4

5

6

24

21

22

23

25

26

27

28

Install lower packings 

with raised lip and  

O-ring facing up.

O-Ring

Raised Lip

Install upper packing 

with raised lip and 

O-ring facing down.

O-Ring

Raised Lip

Item

Part #

Description

Quantity

1

0508664

Retainer nut ................................................1

2

0508665

Piston guide ................................................1

3

0551538

Upper packing assembly ............................1

4

0551535

Spacer ........................................................1

5

0551604

Pump manifold............................................1

6

0509873

Outlet fitting, 1/4” ........................................1

7

0507690

PRIME/SPRAY valve assembly .................1

8

0551539

Lower packing assembly ............................2

9

0551537

Piston rod....................................................1

10

0295307

Outlet valve cage........................................1

11

50164

Outlet valve ball ..........................................1

12

13359

Outlet valve seat.........................................1

13

13481

Outlet valve retainer ...................................1

14

0508676

Piston bushing ............................................1

15

0508739

Nylon washer ..............................................1

16

0508677

Inlet valve cage...........................................1

17

0508678

Inlet valve ball.............................................1

18

0551534

Inlet valve seat............................................1

19

0509582

O-ring, 

PTFE

..............................................1

20

0508680

Inlet valve housing (stand and low boy cart)..1

0508690

Inlet valve housing (upright cart)

21

0508604

Filter seal ....................................................1

22

0508749

Filter support spring....................................1

23

0508603

Adapter .......................................................1

24

0508602

Filter spring .................................................1

25

0508748

Filter............................................................1

26

0508601

Filter housing ..............................................1

27

0551530

Return hose fittiing, 1/8” .............................1

28

0551536

Piston assembly (includes items 9–13) ......1

0551605

Filter assembly (includes items 21–26) ......1

0551533

Repacking kit (includes items 2–4, 8
10–11, 15, 17, and 19)

0551509

Lower seal insertion tool

Summary of Contents for 0551050

Page 1: ...the U S A EPX2255 Piston Pump Owner s Manual SprayTECH 1770 Fernbrook Lane Minneapolis MN 55447 Technical Assistance 1 800 292 4637 Order Entry 1 800 443 4500 Fax 1 800 525 9501 www spraytechinc com M...

Page 2: ...cribed in the pump manual ALWAYS keep tip guard in place while spraying The tip guard provides some protection but is mainly a warning device ALWAYS remove the spray tip before flushing or cleaning th...

Page 3: ...vels guns and accessories must be pressure rated at or above the maximum operating pressure range of the airless sprayer Do not spray outdoors on windy days Wear clothing to keep paint off skin and ha...

Page 4: ...e the third prong or use an adapter Preparing a New Sprayer If this sprayer is new it is shipped with test fluid in the fluid section to prevent corrosion during shipment and storage This fluid must b...

Page 5: ...E SPRAY valve up to the SPRAY position 10 Turn on the sprayer 11 Unlock the gun by turning the gun trigger lock to the unlocked position Ground the gun by holding it against the edge of the metal cont...

Page 6: ...ON OFF switch to the OFF position and unplug the sprayer Practice 1 Be sure that the paint hose is free of kinks and clear of objects with sharp cutting edges 2 Turn the pressure control knob counterc...

Page 7: ...ose in the waste container when moving the PRIME SPRAY valve to PRIME in case the sprayer is pressurized WARNING SprayTECH All rights reserved 7 Do not attempt to clean the tip with your finger Do not...

Page 8: ...manifold 8 SprayTECH All rights reserved Replacing the Motor Assembly Electrostatic discharge ESD potential could cause damage to electronic control Use SprayTECH ESD wrist strap P N 0507958 or equiva...

Page 9: ...from the gear box housing Remove the front cover plate Using a rubber mallet carefully tap on the front of the motor crankshaft that extends through the slider assembly WARNING Replacing the Transduc...

Page 10: ...n rod attached to the pump This will prevent the piston rod from rotating during disassembly of the outlet valve Outlet Valve Retainer Outlet Valve Seat Outlet Valve Ball Outlet Valve Cage Piston Rod...

Page 11: ...hose clip on the siphon tube 19 For Low Boy cart units insert the elbow on the suction set assembly into the bottom of the inlet valve housing Push the retaining ring up into the groove inside the in...

Page 12: ...ats following the Servicing the Fluid Section procedure in the Maintenance section of this manual 10 Take unit to a SprayTECH authorized service center 1 Repack the pump following the Servicing the Fl...

Page 13: ...hose with a minimum of 50 of 1 4 grounded textile braid airless paint spray hose 2 Replace the spray tip following the instructions that came with the spray gun 3 Rotate the pressure control knob cou...

Page 14: ...tion particuli re ATTENTION AVERTISSEMENT DANGER RISQUES D EXPLOSION OU D INCENDIE Les vapeurs d gag es par le solvant ou la peinture sont explosives et inflammables et peuvent causer des corporels s...

Page 15: ...ur assume tous les risques et responsabilit s lorsqu il utilise des pi ces qui ne sont pas conformes aux caract ristiques techniques minimales ainsi qu aux dispositifs de s curit du fabricant de la po...

Page 16: ...PARA PREVENIR Debe proveerse un escape y aire fresco para hacer que el aire que est dentro del rea de atomizaci n se mantenga libre de acumulaciones de vapores inflamables Evite todas las fuentes de i...

Page 17: ...cela con otra manguera conectada a tierra Todas las mangueras soportes giratorios pistolas y accesorios que se usen con esta unidad deben tener una capacidad de presi n de 3100 lb pulg2 21 4 MPa o may...

Page 18: ...7783 Hose clip upright cart only 1 10 0551556 Return hose upright cart only 1 11 0508552 Siphon tube upright cart only 1 12 5006536 Inlet screen upright cart only 1 13 Gear box assembly 1 Item Part De...

Page 19: ...d be performed by a SprayTECH authorized service center Motor Assembly Suction Set Assembly P N 0551104 Item Part Description Quantity 1 0551437 Siphon tube assembly 1 2 0551439 Return hose 1 3 027945...

Page 20: ...20 SprayTECH All rights reserved 1 2 3 4 5 9 10 11 12 13 14 15 16 17 6 7 8 18 19 20 21 23 22 24 NOTE All electrical work should be performed by a SprayTECH authorized service center Gear Box Assembly...

Page 21: ...07751 Port plug 1 24 0551601 Heat sink assembly includes items 22 and 23 1 0551520 Mechanical control assembly includes items 11 14 Stand Assembly Item Part Description Quantity 1 0508377 Cord wrap 1...

Page 22: ...sembly 2 9 0551537 Piston rod 1 10 0295307 Outlet valve cage 1 11 50164 Outlet valve ball 1 12 13359 Outlet valve seat 1 13 13481 Outlet valve retainer 1 14 0508676 Piston bushing 1 15 0508739 Nylon w...

Page 23: ...oll pin 2 3 0294534 Wheel spacer 4 4 0270394 Wheel 2 5 9890104 Cap 2 6 0551548 Plug 2 7 0295615 Lock nut 2 8 0507955 Screw 1 9 0295618 Screw 2 10 0551551 Mounting bracket left 1 11 0551552 Mounting br...

Page 24: ...TECH HEREBY DISCLAIMS ANY AND ALL IMPLIED WARRANTIES INCLUDING BUT NOT LIMITED TO THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO THE EXTENT PERMITTED BY LAW THE DURATION OF ANY IMPLI...

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