Electrical System Maintenance Instructions (Cont)
Dry stator and rotor with compressed air or dry cloth.
Clean all other components, except bearings, in dry cleaning solvent.
Inspect electrical assemblies for damage, frayed or bare wires, or loose connections.
Inspect mechanical assemblies for damage. Check for old or excess grease.
Clean rectifier assembly holes and terminal screws to ensure good electrical contact.
Clean carbon coating off slip rings with crocus cloth
Inspect brushes for burnt appearance, cracks, broken edges.
Check brush wear and replace if length measures less than 0.19 in. (4.8 mm).
Check drive end housing bearing for
smooth rotation. If bearing binds,
Check slip ring housing bearing for
missing rollers. If rollers are missing,
Position drive end housing (1) in press.
Apply pressure only on outer portion of race
when pressing bearing into drive end housing.
Failure to comply may result in equipment
Press bearing (2) in drive end housing
Install bearing retainer (3) in drive end
housing (1) with four screws (4).
Threaded end of shaft must point downward.
Install rotor assembly (5) in drive end
Remove rotor assembly (5) from press.