Service Limits - Taylor-Dunn SC-100-24 Operation, T Roubleshooting And Replacement Parts Manual

Maintenance, Service, and Repair

SERVICE LIMITS

Motor Specification
Number
70-054-40
(XP-1672 or DV1-4002)
70-054-41
(XP-1789 or DY2-4001)
70-057-40
(XP-1673 or DV1-4003)
70-052-40
(XP 1876 or DD3-4004)
70-072-41
(XP 1820A)
70-061-40
(XP-1765A)
NOTE: Special and expensive motor testing equipment is required in order to accurately measure motor armature
or field resistance. In most cases, this equipment is not required in order to determine if a motor is faulty.
The majority of motor failures are due to an open circuit in the field or armature windings. If the symptom
of the vehicle is "not running with NO motor current" then a simple continuity test of each winding is all
that is required to determine if the motor is at fault.
Motor Service
Page 2
Commutator Di-
Undercut Depth
ameter (min)
mm inches mm
0.635 0.025 69.85
0.635 0.025 69.85
0.635 0.025 69.85
0.635 0.025 69.85
0.635 0.025 69.85
0.889 0.035 69.85
Brush Length
(min)
inches mm inches
2.75 15.87 0.625
2.75 15.87 0.625
2.75 15.87 0.625
2.75 15.87 0.625
2.75 15.2 0.6
2.75 15.87 0.625
Resistance
(Ohms@75º F)
Arma-
Field
ture
.0116 1.20
0.011 0.43
0.008 0.58
0.011 0.73
0.0052 0.79
0.011 0.71