Mark the pump sections for correct assembly [Figure 20-60-22].
Remove the eight pump housing bolts (Item 1) [Figure 20-60-22].
Installation: Tighten the bolts (Item 2) [Figure 20-60-22] to 54 ft.-lb. (73,2 Nโขm) torque.
Remove the pump end section (Item 1) [Figure 20-60-23].
Remove the wear plate (Item 1) and section seal (Item 2) [Figure 20-60-24] & [Figure 20-60-25] from the pump end section.
NOTE: Position wear plate (Item 1) [Figure 20-60-25] inlets and traps as shown with bronze side toward gears.
NOTE: Inspect the pump end section (Item 3) [Figure 20-60-25] and bushings (Item 4) [Figure 20-60-25]. If excessive wear or damage is visible, the pump must be replaced.
Remove the charge pump section (Item 1) [Figure 20-60-26] & [Figure 20-60-27] from the pump center section.
NOTE: Inspect the pump section (Item 1) [Figure 20-60-27]. If excessive wear or damage is visible, the pump must be replaced.
Remove the drive gear (Item 1) [Figure 20-60-28] & [Figure 20-60-29].
NOTE: Inspect the drive gear (Item 1) [Figure 20-60-29]. If excessive wear or damage is visible, the pump must be replaced.
Remove the idler gear (Item 1) [Figure 20-60-30] & [Figure 20-60-31] from the pump center section.
NOTE: Inspect the idler gear (Item 1) [Figure 20-60-31]. If excessive wear or damage is visible, the pump must be replaced.
Remove the wear plate (Item 1) and O-ring (Item 2) [Figure 20-60-32] & [Figure 20-60-33] from the pump center section. Inspect for damage and replace as needed.
NOTE: Position wear plate (Item 1) [Figure 20-60-33] inlets and traps as shown with bronze side toward gears.
Remove the load seal (Item 1) [Figure 20-60-34] & [Figure 20-60-35]. Inspect for damage and replace as needed.
Remove the pre-load seal (Item 2) [Figure 20-60-35].
Inspect the pre-load seal (Item 1) [Figure 20-60-36] for damage and replace as needed.
NOTE: Inspect the pump center section (Item 2) and bushings (Item 3) [Figure 20-60-36]. If excessive wear or damage is visible, the pump must be replaced.
Remove the pump center section (Item 1) [Figure 20-60-37].
Remove the wear plate (Item 1) and O-ring (Item 2) [Figure 20-60-38] & [Figure 20-60-39] from the pump center section. Inspect for damage and replace as needed.
NOTE: Position wear plate (Item 1) [Figure 20-60-39] inlets and traps as shown with bronze side toward gears.
NOTE: Inspect the pump center section (Item 3) and bushings (Item 4) [Figure 20-60-39]. If excessive wear or damage is visible, the pump must be replaced.
Remove the auxiliary pump section (Item 1) [Figure 20-60-40] & [Figure 20-60-41] from the pump flange section.
NOTE: Inspect the pump section (Item 1) [Figure 20-60-41]. If excessive wear or damage is visible, the pump must be replaced.
Remove the drive gear (Item 1) [Figure 20-60-42] from the pump flange section.
NOTE: Inspect the drive gear (Item 1) [Figure 20-60-43]. If excessive wear or damage is visible, the pump must be replaced.
Remove the spline shaft (Item 1) [Figure 20-60-44] from the end of the drive gear.
Remove the idler gear (Item 2) [Figure 20-60-44].
NOTE: Inspect the idler gear (Item 1) [Figure 20-60-45]. If excessive wear or damage is visible, the pump must be replaced.
Remove the wear plate (Item 1) and O-ring (Item 2) [Figure 20-60-46] & [Figure 20-60-47] from the pump flange section. Inspect for damage and replace as needed.
NOTE: Position wear plate (Item 1) [Figure 20-60-47] inlets and traps as shown with bronze side
toward gears.
Remove the load seal (Item 1) [Figure 20-60-48] & [Figure 20-60-49]. Inspect for damage and replace as needed.
Remove the pre-load seal (Item 2) [Figure 20-60-49].
Inspect the pre-load seal (Item 1) [Figure 20-60-50] for damage and replace as needed.
NOTE: Inspect the pump flange section (Item 2) and bushings (Item 3) [Figure 20-60-50]. If excessive wear or damage is visible, the pump must be replaced.
Remove the shaft seal (Item 1) [Figure 20-60-51] from the pump flange section.
Installation: The shaft seal flush surface (Item 2) [Figure 20-60-51] must be facing out away from the pump.
