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TM 5-4210-220-34
3-8.
ENGINE - Continued
3-8.7
Gear Train - Continued
REPAIR
a.
Blower Drive Gear Repair
(1)
Secure the blower drive gear and support in a soft jaw vise.
(2)
Remove the three capscrews (3) securing the drive gear hub (2) and flex plates (4) to the blower drive gear
(11). Then remove the flex plates and blower drive gear hub as an assembly. Make sure to avoid dropping
the spacers (6) during disassembly.
(3)
Straighten the tabs on the lockwasher (8) and remove the blower drive gear support nut (7).
(4)
Withdraw the lockwasher (8), thrust washer (9), thrust bearings (10 and 12) and gear (11) from the support
(1).
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 138 deg. F (30 to
59 deg. C).
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.
3-148
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