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Caution: This document contains mixed page sizes ... - Igor Chudov

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.<br />

The drive gear and innerend bearing are pressed on the Input shaft<br />

and held In place by a key and a retaining ring, Flgure 53. Use a<br />

suitable press when it is necessary to replace the bearing, gear or<br />

shaft.<br />

FIGURE 53. INSTALLING SNAP RING BEHIND<br />

DRIVE GEAR BEARING<br />

ALTERNATOR DISASSEMBLY<br />

The alternator disassembly and reassembly is safer<br />

and easier with thealternator in the vertical position<br />

as shown in following sequence of illustrations.<br />

STATOR /<br />

THROUGH-STUD<br />

BLOWER<br />

, KEY ROTOR<br />

ROTOR<br />

THROUGH-STUD<br />

COVER<br />

Alternator components are heavy, so use a hoist and<br />

rope sling and stator tongs for handling and separat-<br />

ing the components, Figure 54.<br />

On two bearlng alternators, remove drlve end bearlng plate and<br />

shaft key before upending the unit for dlsassembty.<br />

1.<br />

2.<br />

3.<br />

FIGURE 54. ALTERNATOR DISASSEMBLY<br />

49<br />

Usea hoist and ropesling to raise theend bell end<br />

up to a vertical position.<br />

Support unit on drive end and use special blocks<br />

to protect drive shaft. <strong>This</strong> step isn't necessary on<br />

PTO units if the gear case cover and shaft are<br />

removed first.<br />

Remove four nuts from rotor-through-studs,<br />

Figure 55.<br />

n<br />

FIGURE 55. END BELL REMOVAL<br />

BRUSHLESS A'REA FLE STATOR<br />

EXCITER f I<br />

'

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