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TM 5-4210-220-34
2-12.
PUMP DRIVE AND PTO - Continued
(10) Press shaft until it is removed from lower bearing (14).
(11) Remove the key (13) from the shaft, only if It is damaged and needs to be replaced.
(12) Remove the seals (9) from the open caps (8).
(13) Remove bearing cups from the open caps (using a hammer and a punch), and from the closed cap (using a
pair of pry bars).
NOTE
If the bearings are damaged, the bearing cone and cup should be replaced as a pair.
(14) Remove all old gaskets using a putty knife.
WARNING
Dry cleaning solvent P-D-680 (safety or Stoddard’s solvent) is potentially dangerous. Avoid repeated and
prolonged breathing of vapors and skin contact with the liquid. Do not use near open flame, arcing
equipment or other ignition sources. Always wear eye protection and protective clothing. The flash point
of P-D-680 is 100 to 148 deg. F (30 to 59 deg. C).
(15) Wash all reducer gear components using dry cleaning solvent (item 10, Appendix B).
WARNING
Death or serious injury could occur if compressed air is directed against the skin. Do not use compressed
air for cleaning or drying unless the pressure is/has been reduced to 30 psi (2.11 kg/cm2) or less. When
working with compressed air always use chip guards, eye protection and other personal protective
equipment.
(16) Dry all components using compressed air. Do not allow bearings to spin while drying.
(17) Inspect gears, shafts, bearing cones, and caps following procedures outlined in para. 2-7. Small
imperfections in a shaft may be removed using emery cloth (item 13, Appendix B). Polish the shaft in a
circumferential direction.
(18) Inspect open caps, closed caps, and housing halves for cracks stripped mounting holes or warped mating
surfaces. Repair or replace as necessary.
(19) If disassembled, assemble both shafts as detailed in steps 20 thru 25. Both shafts are similar except low
speed shaft has a spacer between each bearing and the gear.
Do not attempt to press more than one part onto the shaft at a time.
2-89
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