Appendix A: Charge Pump Adapter Assembly - Eaton 72400 Repair Information

Model 72400
Appendix A -
Disassembly -
Charge Pump Adapter Assembly
1 Remove plug, shims, spring, and poppet from adapter
assembly.
Inspection:
• Inspect the charge pump relief valve seat inside the
charge pump adapter. Check to insure that seat is smooth and
free of burrs or other defects.
• Inspect the charge pump relief valve spring.
• Inspect the bearing or bushing inside the charge pump
adapter. The bearing needles must remain in the bearing cage
and bearing at dimension shown in figure 1-2. The bushing
must have no excessive scoring.
• Inspect the gerotor pocket inside the charge pump
adapter assembly. It should not be scored excessively.
Numbered End
Flange
Gerotor Pocket
Figure 1-2
Reassembly -
Charge Pump Adapter Assembly
1 If necessary, press new bearing or bushing in adapter
assembly. The bearing to dimension shown in figure 1-2 with
the numbered end of bearing outward and closest to mounting
flange. The bushing is to be pressed flush to 0,254 mm [.010
in.] recessed.
2 Install poppet, spring, shims, new o-ring on plug, and plug
into adapter assembly. Torque plug 40,7 to 36,6 N•m [30 to 27
lbf•ft.]
Charge Pump Adapter Assembly
Gerotor Ring
Pocket
2,41 mm
[.095 in.]
46-1
46-6
46-5
46-4
46-3-1
46-3
Item Qty.
46-1 1
46-2 1
46-2 1
46-3 1
+ 46-3-1 1
46-4 ƒ
46-5 1
46-6 1
ƒ
11
Bearing
Charge Pump
Suction Port
Description
Charge Pump Adapter
Bearing (press fit)
Bushing (press fit)
Plug
O-ring
Shims
Spring
Poppet
Shim as required
46-2
Bushing