WS223, WS223 SS, WS223 XD, WS255, WS255 SS, WS255 XD, WSP223, WSP255, WSF223, WSF223 SS, WSF223 XD, WSF255, WSF255 SS and WSF255 XD Well Stimulation Pumps Caterpillar

Removal Procedure

Start By:

1. Remove the manifold (suction).

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Illustration 1	g03362870

Note: Clamp (1) halves are matched pairs. Place identification marks on clamp (1) for installation purposes.

1. Remove bolts (2) and clamp (1). Repeat for the remaining clamps.
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   Table 2

   Approximate weight of Fluid End (3)
   Sales Model	Approximate Weight
   WS223	1507 kg (3322 lb)
   WS223 XD	1837 kg (4050 lb)
   WS223 SS	1828 kg (4030 lb)
   WSF223	1507 kg (3322 lb)
   WSF223 XD	1837 kg (4050 lb)
   WSF223 SS	1828 kg (4030 lb)
   WS255	2182 kg (4810 lb)
   WS255 XD	2431 kg (5359 lb)
   WS255 SS	2429 kg (5355 lb)
   WSF255	2182 kg (4810 lb)
   WSF255 XD	2431 kg (5359 lb)
   WSF255 SS	2429 kg (5355 lb)

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   Illustration 2	g03362874

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   Illustration 3	g03362941

2. Use the provided lifting eyes and a suitable lifting device to remove fluid end well stimulation (3). Refer to Table 2 for the approximate weight of Fluid End (3). Remove nuts (4) and Fluid End (3).

Installation Procedure

1. Install the Fluid End (3) in the reverse order of removal.

   Note: Check the length of each rod before installing fluid end (3). Refer to Disassembly and Assembly, " Rod - Remove and Install".

   1. Apply Tooling (C) on the rods.
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      Table 3

      Torque of Bolts (4)
      Sales Model	Bolt (4) Torque
      WS223 WS223 SS WSF223 WSF223 XD WSF223 SS	3254 N·m (2400 lb ft)
      WS255 WS255 SS WSF255 WSF255 XD WSF255 SS	3254 N·m (2400 lb ft)

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      Illustration 4	g03494204
      Triplex Well Stimulation Pumps.

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      Illustration 5	g03645339
      Quintuplex Well Stimulation Pumps.

   2. Torque nuts (4) in sequence shown in Illustration 4 and 5. Refer to Table 3 for torque of nuts (4).

   3. Apply Tooling (B) on bolts (2). Tighten bolts (2) to a torque of 108 N·m (80 lb ft).