Discharge Flange Instructions for Well Stimulation Pumps {5234, 6002} Caterpillar

Well Pump

WSF223 (S/N: FNL1-UP)

WSF223 SS (S/N: BM81-UP)

WSF255 SS (S/N: BM91-UP)

WSF255 XD (S/N: FNP1-UP)

Well Stimulation Pump

WS223 (S/N: SR31-UP)

WS223 SS (S/N: BM31-UP)

WS223 XD (S/N: SR41-UP)

WS255 (S/N: SR51-UP)

WS255 SS (S/N: BM51-UP)

WS255 XD (S/N: SR61-UP)

WS273 XD (S/N: DG21-UP)

WS305 XD (S/N: EA21-UP)

WSF255 XD (S/N: P231-UP)

Well Stimulation Pump Fluid End

WSF223 (S/N: FN41-UP)

WSF223 SS (S/N: BM41-UP)

WSF223 XD (S/N: FN31-UP; FNM1-UP)

WSF243 SS (S/N: RX21-UP; RX31-UP; RX41-UP; RX51-UP)

WSF243 XD (S/N: FN91-UP; FNC1-UP; FND1-UP; FNE1-UP)

WSF253 SS (S/N: RWC1-UP; RWD1-UP)

WSF253 XD (S/N: FN81-UP; FNT1-UP)

WSF255 (S/N: FN51-UP; FN61-UP; FN71-UP)

WSF255 SS (S/N: BM61-UP; BM71-UP)

WSF255 XD (S/N: FN21-UP)

WSF273 XD (S/N: DG41-UP; DG51-UP; DG61-UP)

WSF275 SS (S/N: RX61-UP; RX71-UP; RX81-UP; RX91-UP)

WSF275 XD (S/N: FNB1-UP; FNF1-UP; FNG1-UP; FNH1-UP)

WSF305 XD (S/N: EA41-UP; EA51-UP; EA61-UP; EA71-UP)

Introduction

This Special Instruction is intended to give information on installing the discharge flanges onto the fluid end for certain well stimulation pumps.

Do not perform any procedure in this Special Instruction until you have read the information and you understand the information.

Also ensure that you are following all safety precautions while you are performing the procedures outlined in this document.

Installation Procedure

Discharge Flange Installation

Note: Different discharge flange styles may be used that are not covered in this special instruction, connect the Dealer Solution Network (DSN) for additional information.

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Illustration 1	g06024204

1. Apply Loctite^® Threadlocker Blue 242^® to the threaded holes in the fluid end.

2. Use an impact gun and stud driver to screw the studs into the six holes on the discharge side of the fluid end. Ensure that the studs are all bottomed out.
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   Illustration 2	g06024206
   Discharge flange

3. Apply 129-1966 Multipurpose Grease or equivalent to the Polypak seal on the smaller boss of the discharge flange.
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   Illustration 3	g06024208
   (1) Discharge flange (2) Nut (3) Stud

4. Install discharge flange (1) onto studs (3). Secure discharge flange (1) to the fluid end with nuts (2).

5. Hand-tighten nuts (2) until each nut is flush with the face of each stud (3).

   Note: A 480-7356 Crowfoot Wrench is required for torquing the nuts.

   Torque nuts in a cross pattern ... 624 ± 81 N·m (460 ± 60 lb ft)

Hammer Union Installation

Illustration 4	g06024248
(4) Casing (5) Snap ring (6) Metal inserts

1. Disassemble the hammer union into five pieces.

2. Remove snap ring (5) from metal inserts (6).

3. Remove three metal inserts (6) that form the metal ring.
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   Illustration 5	g06024260
   (1) Discharge flange (4) Casing (5) Snap ring (6) Metal inserts

4. Install casing (4) onto discharge flange (1) with the side that has the three handles facing towards discharge flange until the casing has cleared the tip of the discharge flange.

5. Install three metal inserts (6) into casing (4). The metal inserts are at approximately 0 degree, 90 degree, and 270 degree angles of discharge flange (1).

   Note: The thinner side of metal insert (6) faces toward casing (4).

6. Install snap ring (5) onto the three metal inserts (6). Push casing (4) towards metal inserts (6) until the snap ring locks in place with the casing of the hammer union.

7. Pull the hammer union unit forward until the hammer union reaches the tip of discharge flange (1) to confirm that the hammer union is installed securely.

Other Discharge Flange Styles

Illustration 6	g06024280
1502 Flange

Illustration 7	g06024283
Discharge blank