![background image](http://html1.mh-extra.com/html/taylor-dunn/b0-248-36/b0-248-36_operation-t-roubleshooting-and-replacement-parts-manual_3820102106.webp)
Motor Service
Motor
Page 4
Insulation
Commutator
Incorrect
Hacksaw blade
Correct
Min. OD
Armature
Undercut
Typical burn mark on a shorted armature
2. Measure the diameter of the commutator.
• If the commutator is less than the minimum
diameter specified in section
Service Limits
,
then the motor must be replaced.
3. Measure the commutator undercut depth in 5-places
around the commutator.
• If any one of the measurements is less than the
minimum undercut depth specified in
Service
Limits
at the end of this section, then the
commutator must be undercut. Refer to
Repair
Commutator
section for information regarding
undercutting the commutator.
4. Inspect the commutator for groves.
• If the commutator is grooved then it must be
machined on a lathe. Do not machine the
commutator past the minimum diameter
specified in
Service Limits
section. Refer to
Repair Commutator
section for information
regarding machining the commutator.
5. Inspect the commutator for burn marks.
• Burn marks and/or raised commutator segments
90 or 180 degrees apart is evidence of a shorted
armature. A tool called a growler is required to
reliably test for a shorted armature.
6. Inspect the commutator for raised segments. Raised
segments could be a result of a stalled motor or
shorted armature. A tool called a growler is required
to reliably test for a shorted armature.
• If the armature is not shorted then the raised
segments can be removed by machining the
commutator. Do not machine the commutator
past the minimum diameter specified in
Service
Limits
section. Refer to
Repair Commutator
section for information regarding machining the
commutator.
Summary of Contents for B0-248-36
Page 2: ......
Page 6: ...TAYLOR DUNN...
Page 76: ...Maintenance Service and Repair Steering Page 22 Exploded View of Steering Gear...
Page 102: ...TAYLOR DUNN...
Page 138: ...TAYLOR DUNN...
Page 144: ...TAYLOR DUNN...
Page 156: ...TAYLOR DUNN...
Page 159: ...Sevcon Troubleshooting Page 3 Electrical Troubleshooting Identifying Your Controller...
Page 178: ...TAYLOR DUNN...
Page 210: ...Illustrated Parts Parts Page 2 Part number not available at time of printing Front Axle...
Page 212: ...Illustrated Parts Parts Page 4 Part number not available at time of printing Steering Knuckle...
Page 214: ...Illustrated Parts Parts Page 6 Part number not available at time of printing Front Brakes...
Page 216: ...Illustrated Parts Parts Page 8 Part number not available at time of printing Steering Linkage...
Page 228: ...Illustrated Parts Parts Page 20 Part number not available at time of printing Rear Brakes...
Page 230: ...Illustrated Parts Parts Page 22 Part number not available at time of printing Brake linkage...
Page 234: ...Illustrated Parts Parts Page 26 Part number not available at time of printing Motor...
Page 278: ...Illustrated Parts Parts Page 70 Part number not available at time of printing Hitches...
Page 279: ...Illustrated Parts Parts Page 71 Part number not available at time of printing...
Page 280: ...Illustrated Parts Parts Page 72 Part number not available at time of printing...
Page 281: ...APPENDIX A Special Tools...
Page 290: ...Model B 1 00...
Page 291: ......