Specifications

6–24
Replacement Procedures and Parts
Hammer Spring (FD–15794–01) and
Hammer Coil (FD–15793–01)
Spring Removal:
1. Put the hammer bank in the service position (page 5–2).
2. To remove a defective hammer spring, remove the two (2) allen screws
which secure the hammer retaining clamp. Each clamp supports 2
hammer springs. (See Figure 6–12, page 6–50.)
3. After reassembling the hammer bank, adjust the hammer tips (page
5–10).
Coil Removal:
1. Remove the corresponding hammer spring to expose the defective coil. (See
Figure 6–12, page 6–50, item #6.)
2. Remove the two (2) allen screws which secure the coil clamp (Figure 5–2, page
5–5, items #26 and #27), and the two (2) phillips screws which secure the coil
lead bracket(s) of the coil being replaced.
3. Carefully remove the hammer coil by prying upward with a plastic tool.
4. At the berg header of the defective hammer coil, using a sharp pointed
tool, release the red and white wires/leads by depressing inward on the
silver locking tab of the female contact.
5. After reassembling the hammer bank, adjust the hammer tips (page
5–10).