Disassembly
- Disconnect lead wire (A) from magnetic switch (B). (Scheme 18)
- Remove through-bolts (A) from end frame (B). (Scheme 19)
- Remove yoke (A) from magnetic switch (B). (Scheme 20)
- Remove screws (A) securing brush holder to end frame. (Scheme 21)
- Separate yoke (A) from end frame (B). (Scheme 22) CAUTION: Be careful not to damage brush and commutator.
- Remove brush (A) by lifting up positive side brush spring (B) using long-nose pliers. (Scheme 23)
- Remove armature (A) from yoke (B). (Scheme 24)
- Remove screws securing magnetic switch (A) to housing (B). (Scheme 25)
- Remove housing (A) from magnetic switch (B). (Scheme 26)
- Remove clutch (A) from housing (B). (Scheme 27) CAUTION: Be careful not to lose steel ball.
- Take out steel ball (A) from clutch (B). (Scheme 28)
- Remove idle gear from housing. (Scheme 29) CAUTION: Be careful not to drop retainer and roller.
- Remove retainer and roller (A) from housing. (Scheme 30)
- Remove coil spring (A) from magnetic switch (B). (Scheme 31)
Scheme 18
Scheme 19
Scheme 20
Scheme 21
Scheme 22
Scheme 23
Scheme 24
Scheme 25
Scheme 26
Scheme 27
Scheme 28
Scheme 29
Scheme 30
Scheme 31
Assembly
Assemble in the reverse order of disassembly. Observe the following
- Before assembling, apply grease to the points show in see scheme 1. CAUTION: DO NOT forget to install steel ball and coil spring to clutch. Attach bearing to idle gear beforehand.
- Assembling magnetic switch, clutch, and housing. (Scheme 32) To assemble, first install clutch to magnetic switch, then install idle gear, and finally install clutch.
- Install armature (A) to yoke (B). (Scheme 24)
- Assemble brush holder to yoke. (Scheme 33) Then assemble 2 yoke-side brushes to brush holder.
- When assembling end frame to yoke, align notched portion (A) of end frame with lead wire grommet (B). (Scheme 34)
- When installing yoke to magnetic switch, align notch (A) of yoke with groove of magnetic switch. (Scheme 35)
