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

Removal Procedure for WS255 Well Stimulation Pumps

Show/hide table

Illustration 1	g03889407

Show/hide table

Illustration 2	g03371389

Show/hide table

Illustration 3	g03889408

Note: Clamp (3) halves are matched pairs. Place identification marks on clamp (3) for installation purpose.

1. Remove bolts (1) and clamp (3) from pony rod (2).

2. Rotate pinion (7) to reposition pony rod (2). Leave enough space between pony rod (2) and the plunger to remove pony rod seal housing (9).

3. Remove bolts (6).

4. Remove seal housing (9) from pony rod (2).

5. Remove bolts (4) and the washers.

6. Remove seal (5).

7. Remove gasket (8).
   Show/hide table

   Illustration 4	g03889426

8. Remove seal spacer (10).

Removal Procedure for WS223 Well Stimulation Pumps

Show/hide table

Illustration 5	g03889407

Show/hide table

Illustration 6	g03371389

Show/hide table

Illustration 7	g03889428

Note: Clamp (3) halves are matched pairs. Place identification marks on clamp (3) for installation purpose.

1. Remove bolts (1) and clamp (3) from pony rod (2).

2. Rotate pinion (7) to reposition pony rod (2). Leave enough space between pony rod (2) and the plunger to remove pony rod seal housing (9).

3. Remove bolts (6).

4. Remove seal housing (9) from pony rod (2).

5. Remove bolts (4) and the washers.

6. Remove seal (5).

7. Remove gasket (8).

Installation Procedure

Installation Procedure for WS255 Well Stimulation Pumps

1. Install pony rod seal (5) in the reverse order of removal.

   1. Use Tooling (D) to install gasket (8).

   2. Apply Tooling (C) to pony rod seal (5).

   3. Apply Tooling (A) to the threads of bolts (4).

   4. Apply Tooling (B) to the threads of bolts (6). Tighten bolts (6) to a torque of 47 N·m (35 lb ft).

   5. Apply Tooling (B) to the threads of bolts (1). Tighten bolts (1) to a torque of 108 N·m (80 lb ft).

Installation Procedure for WS223 Well Stimulation Pumps

1. Install pony rod seal (5) in the reverse order of removal.

   1. Use Tooling (D) to install gasket (8).

   2. Apply Tooling (C) to pony rod seal (5).

   3. Apply Tooling (A) to the threads of bolts (4).

   4. Apply Tooling (B) to the threads of bolts (6). Tighten bolts (6) to a torque of 149 N·m (110 lb ft).

   5. Apply Tooling (B) to the threads of bolts (1). Tighten bolts (1) to a torque of 108 N·m (80 lb ft).