a. See figure 14-16 and connect the electricstarter in the no-load test circuit illustrated. Per-form no-load test as follows:(1) Energize the test circuit and obtain a voltageof 22 volts by varying the variable resistance.(2) Check the speed of the armature on thetachometer.Minimum speed should be 7000 rpm.(3) Check the current draw on the ammeter.Maximum current draw should be 90 amperes. If alow-speed, high-current condition exists, possiblecauses are excessive armature arcing, armatureground, armature short, or armature drag causedby loose pole shoes or faulty bearings. A low-speed,low-current condition indicates faulty brushes orfaulty connection.b. See figure 14-16 and setup for lock torqueted as illustrated.CAUTIONNever operate the electric starter with allresistance removed from the circuit. Fail-ure to adhere to this caution will result inextreme motor speeds which can causedamage to the motor and possible injury topersonnel.The variable resistance should beone with a high current capacity.(1) Energize the circuit and check the scale todetermine the torque output of the motor.(2) Scale should indicate 22 pound-feet (mini-mum), at 400 amperes and approximately four volts,as indicated on the meters.C. Installation. Install the starter motor on theflywheel housing using the disassembly steps in re-verse order. See figure 14-9.Figure 14-14.Solenoid Adjustments14-21
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