SprayTECH EPX2255 User manual

1104 © 2004 SprayTECH. All rights reserved. Form No. 0551545A
Printed in 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: [phone]
www.spraytechinc.com
Model Numbers:
0551050 Stand
0551060 Upright Cart
0551070 Low Boy Cart

18 © SprayTECH. All rights reserved.
Parts List
Main Assembly
1
3
4
5
2
18
19
17
16
13
14
6
7
8
9
10
11
12
15
Item Part # Description Quantity
1 0551517 Motor cover.................................................1
2 0551440 Screw..........................................................4
3 9800308 Screw..........................................................4
4 ---------- Motor assembly ..........................................1
5 0551526 Left leg assembly (stand only)....................1
60551443 Pail hook (upright cart only)
7 0508549 Washer (upright cart only) ..........................2
80508550 Screw (upright cart only).............................2
90507783 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 # Description Quantity
14 0509550 Screw (stand)..............................................4
0509244 Screw (upright cart)
0508590 Screw (low boy)
15 0551524 Right leg assembly (stand only) .................1
16 0509636 Plug.............................................................2
17 0551603 Fluid section assembly
(stand and low boy cart) .............................1
0551602 Fluid section assembly (upright cart)
18 0508553 Screw..........................................................2
19 0551104 Suction set assembly
(stand and low boy cart) .............................1
20 9890212 Return hose clamp (not shown) .................1

2
1
3
4
5
6
© SprayTECH. All rights reserved. 19
Item Part # Description Quantity
1 0551616 Fan..............................................................1
20551598 Front end bell assembly w/ motor ..............1
3 0508558 Electronic cover ..........................................1
Item Part # Description Quantity
4 0551611 Electronic control assembly........................1
5 0551614 Fan shroud..................................................1
6 0551594 Motor assembly
(includes items 1, 2, 4, and 5) ....................1
NOTE: All electrical work should be
performed by a SprayTECH
authorized service center.
Motor Assembly
Suction Set Assembly (P/N 0551104)
Item Part # Description Quantity
10551437 Siphon tube assembly ................................1
2 0551439 Return hose ................................................1
3 0279459 Hose clip.....................................................1
4 0295565 Inlet screen .................................................1
5 9871105 O-ring..........................................................2
6 9822526 Retaining ring..............................................1
79850638 Tie wrap ......................................................2
1
2
3
4
5
6
7
Labels
Part # Description
0551445 Logo label, front
0551457 Logo label, left
0551465 Logo label, right
0551485 Warning label, explosion/injection
0295805 Shock hazard label
0508330 PRIME/SPRAY knob label
0507856 PRIME/SPRAY label

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

© SprayTECH. All rights reserved. 21
Item Part # Description Quantity
1 0509218 Screw..........................................................4
2 0551518 Front cover..................................................1
3 0551541 Slider assembly ..........................................1
4 0507777 Connecting pin............................................1
50507768 Retaining ring..............................................1
6 0508572 Crankshaft/gear assembly..........................1
7 0508573 Thrust washer.............................................1
8 0509121 Second stage gear .....................................1
9 0509219 Screw..........................................................1
10 0551513 Pressure control knob.................................1
11 0551522 Knob housing..............................................1
12 02712 Knob spring.................................................1
13 9822522 Washer........................................................1
14 0551521 Plunger .......................................................1
Item Part # Description Quantity
15 0551516 Power cord assembly (stand).....................1
0551432 Power cord assembly
(low boy and upright cart)
16 9800340 Ground screw .............................................1
17 0551112 Transducer assembly (includes o-ring) ......1
18 9850936 ON/OFF switch ...........................................1
19 03662 Microswitch insulator ..................................1
20 0295490 Microswitch .................................................1
21 9800604 Screw..........................................................2
22 0509218 Screw..........................................................4
23 0507751 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
10508377 Cord wrap ...................................................1
20551525 Plug.............................................................4
3 0551526 Left leg assembly
(includes items 1, 2, and 7) ........................1
4 0551483 Clip assembly .............................................1
5 0551484 Screw..........................................................1
6 0508381 Drip cup ......................................................1
70551527 Screw..........................................................2
8 0509856 Nut ..............................................................1
9 0551524 Right leg assembly
(includes items 2, 4, 5, 6, 8, and 10)
10 0507955 Screw..........................................................1
2
1
3
5
4
6
7
8
10
9
Upright Cart Assembly (P/N 0551113)
Item Part # Description Quantity
1 0551664 Handle assembly
(includes items 2–5, 10 and 11...................1
2 0295607 Handle sleeve.............................................2
39841504 Snap button ................................................2
4 0295609 Handle washer............................................2
50295610 Roll pin........................................................2
69890104 Cap .............................................................2
7 0294534 Spacer ........................................................4
8 0551550 Plug.............................................................2
9 0551548 Plug.............................................................2
10 0295606 Washer........................................................6
11 0295608 Screw..........................................................4
12 0507655 Cord wrap ...................................................2
13 0551555 Screw..........................................................4
14 0551665 Cart weldment (includes items 8 and 9).....1
15 0278373 Wheel..........................................................2
1
2
3
4
5
7
10
11
12
10
14
15
13
7
8
9
6

22 © 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
80551539 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, Teflon ..............................................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

© SprayTECH. All rights reserved. 23
Power Cord
Micro-
switch
J12
Motor
WHITE MOTOR LEAD
WHITE MOTOR LEAD
Potentiometer Jack
Female Bullet
P/N 0551680
Motor
Compartment
Electrical Schematic
Low Boy Cart Assembly (P/N 0551547)
9
10
11
12
13
14
15
16
17
18
20
19
1
2
3
4
6
7
8
3
5
Item Part # Description Quantity
1 0551608 Cart weldment (includes items 6 and 14)...1
2 0507956 Roll 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 bracket, right ...............................1
Item Part # Description Quantity
12 0295608 Screw..........................................................4
13 0295606 Washer........................................................4
14 0551525 Plug.............................................................2
15 0295609 Handle washer............................................2
16 0295610 Roll pin........................................................2
17 9841504 Snap button ................................................2
18 0295607 Sleeve.........................................................2
19 0551609 Handle asssembly
(includes items 12, 13, and 15–18 .............1
20 0508381 Drip cup ......................................................1
NOTE: All electrical work should be performed by
aSprayTECH authorized service center.