2. Remove the nuts and washers, remove the mounting bracket (photo).
3. Loosen the brackets, remove the heat shield (where used) (photo).
4. Loosen the nut, disconnect the field winding wire from the solenoid clamp (photo).
5. Unscrew the screws, disconnect the traction relay from the drive housing (photo).
6. Disconnect the core of the traction relay from the engagement lever (photo). Remove the spring if necessary.
7. Unscrew the tie bolts, remove them from the bearing housing (photo).
8. Remove the rubber pads from the engagement lever (photo).
9. Disconnect the drive housing from the yoke and remove from the engagement lever.
10. Disconnect the engagement lever from the anchor slip ring (photo).
11. Loosen the screws, remove the small end cap and gasket (photo).
12. Remove the C-bracket, remove the gasket, noting the exact number of gaskets, as they determine the axial play of the armature (photo).
13. Remove the base plate at the end of the switch, then the gasket (photo).
14. Before removing the brush holder assembly, prepare a socket with a diameter approximately equal to the diameter of the commutator. Position the socket against the commutator, then slide the grommets and holder assembly onto the socket (photo).
15. Mark the position of the engagement lever plate relative to the yoke, then remove the anchor (photo).
16. With a metal pipe, take the thrust ring away from the retaining ring, then remove the retaining ring, remove the retaining ring (photo).
17. Pull drive gear off anchor.
18. Clean all parts in kerosene, wipe dry, then check their condition. Check the condition of the drive gear teeth, make sure the freewheel only rotates in one direction. If the shaft bushings are worn, they can be removed and new ones installed. However, new bushings must be immersed in hot oil for approximately five minutes. Clean the switch with a cloth moistened with a suitable solvent. Minor wear can be removed with fine sandpaper, but deep wear requires the commutator to be machined on a lathe. Verify that the diameter of the switch is not less than the specified minimum size (photo).
19. Measure the length of the brushes. If it is less than the minimum length given in the Specifications, install new brushes. This will require the use of a soldering iron, so be careful that the solder does not get on the braided wire, it can interfere with the free movement of the brushes in their holder.
20. Assembly is carried out in the reverse order.
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