Alternator: Pulley Nut Tightening (Delco-Remy

Pinion Clearance Adjustment (Prestolite)

TM-5-3805-260-24 Scraper Tractor: Elevating Self-Propelled 11 Cubic Yard Sectionalized and Nonsectionalized Manual
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TM 5-3805-260-24 5. Put 3S6252 Rubber Sealant on adjustment screw (4) and install cover (3) and end plate (2). CAUTION: Make certain that the field wire (5) is not located over the transistor pins (6). The pins can make a hole in the insulation of the wire. Alternator: Pulley Nut Tightening (Delco-Remy ALTERNATOR PULLEY INSTALLATION 1. 8S1588 Adapter(1/2” female to 3/8” male). 2. 8S1590 Socket (5/16”-3/8” drive). 3. 1P2977 Tool Group. 8H8555 Socket (15/6” - ½” drive) not shown. Tighten nut holding the pulley to a torque of 60 to 75 lb. ft. (80 to 100 N•m) with the tools shown STARTING SYSTEM Tools Needed: 5P300 Electrical Tester. Use a D. C. Voltmeter to find starting system components which do not function. Move the starting control switch to activate starter solenoid. Starter solenoid operation can be heard as the pinion of the starter motor is engaged with the ring gear on the engine flywheel. The solenoid operation also closes the electric circuit the motor. Connect one lead of the voltmeter the solenoid connection (terminal) that is fastened to the motor. Put the other lead to a good ground Activate the starter solenoid and look at the meter. A reading of battery voltage show problem is in the motor. The motor must moved for further testing. No reading on the meter shows that the solenoid contacts d close. This is an indication of the need for to the solenoid or an adjustment to be made starter. If the solenoid for the starting motor will not operate, it is possible that the current from the battery is not getting to the solenoid. Fasten one lead of the voltmeter to the connection (terminal) for the battery cable on the solenoid. Put the lead to a good ground. No voltmeter reading shows there is a broken circuit from the battery. Further testing is necessary when there is a reading on the voltmeter. Further test by fastening one voltmeter lead to the connection (terminal) for the small wire solenoid and the other lead to the ground. Look at the voltmeter and activate the starter solenoid voltmeter reading shows that the problem is solenoid. No voltmeter reading shows that problem is in the starter switch or wiring. Fasten one lead of the voltmeter to the battery wire connection of the starter switch and put the lead to a good ground. A voltmeter reading indicates a failure in the switch. A starting motor that operates too slow can have an overload because of too much friction in the engine being started. Slow operation of the starting motor can also be caused by shorts, loose connections, and/or dirt in the motor. Pinion Clearance Adjustment (Delco-Remy) Whenever the solenoid is installed, make an adjustment of the pinion clearance. The adjustment can be made with the starting motor removed. CONNECTION FOR CHECKING PINION CLEARANCE 1. Connector from MOTOR terminal on solenoid to motor. 2. SW terminal. 3. Ground terminal. 1. Install the solenoid without connector (1) from the MOTOR connection (terminal) on solenoid to the motor. 2. Connect a battery, of the same voltage solenoid, to the terminal (2), "SW". 3. Connect the other side of battery to ground terminal (3). 2-78

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