NOTE: SPECIFICATION TABLES BEGIN ON PAGE 41 OF THIS SECTION.

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Gervais McLaughlin
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1 Test Interlock Switch Wiring Model Series Disconnect interlock switch wires from spade terminals on switch and at starter motor connector.. Set meter to read ohms.. Connect one meter test lead to end of one wire inside connector and other test lead to second connector terminal for the same wire. Light should be on or meter should read low or no resistance. Wiggle wire inside connector. Light should stay constant or meter should not change value. Replace or repair wiring if there is no continuity or intermittent. Repeat for each wire in harness NOTE: Some equipment manufacturers provide a key operated ignition switch. For servicing, contact equipment manufacturer. Test 6 or Volt Starter Motor DMM (#96) Tachometer capable of reading 0,000 RPM. Fully charged 6 or volt battery. See Table No., Specifications. Fig. 6 Starter motor exploded view: Roll pin () Clutch retainer assembly () Pinion gear () Helix and drive assembly () Thrust washer () Spring washer (6) Drive end cap (7) Armature (8) Thru bolts (9) Housing (0) Seam () End cap (). Set the meter to read DC amps.. Connect the starter motor, battery and meter, Fig. 7.. Place the tachometer on the starter motor and activate the motor. If the motor does not perform satisfactorily, see Interpreting Starter Motor Test Results, P Fig. 6 Volt DC Starter Motor Nylon Pinion Model Series 0000 Test DC Shunt, Tool #99 and DMM (#96) or VOA Meter. Tachometer capable of reading 0,000 RPM. Fully charged volt battery. See Table No. (Nylon Pinion), Specifications. 0 NOTE: SPECIFICATION TABLES BEGIN ON PAGE OF THIS SECTION.

2 . Connect the starter motor, battery and meter as shown in Fig. 7.. Activate the starter motor and note readings of meter (Amps DC) and tachometer (RPM). If the motor does not perform satisfactorily, see Interpreting Starter Motor Test Results on page 7, Fig. 7. Fig. 7: Optional starter switch () Test fixture from P. () Black lead () Red lead () DC shunt terminal () volt battery (6) 0 Volt AC Starter Motor, Steel Drive Pinion MODEL SERIES 0000 Test DMM (#96) with AC Shunt, Tool #98 Tachometer capable of reading 0,000 RPM. See Table No., page, Specifications, for maximum allowable amperage. Fig. 7 6 Extreme care should be used in making this test to minimize the hazard of electrical shock.. Clamp the starter motor in a vise as shown in Fig. 8. Sirometer (), AC Shunt Tool #98 ().. Set meter to AC amps.. Insert leads into meter and plug starter motor cord into AC adapter.. Connect AC adapter to a 0 volt outlet.. Depress starter switch button. When meter reading stabilizes (approximately seconds), amperage should not exceed the specification shown. CAUTION: If amperage is higher than specification shown, immediately stop the test! An amperage reading higher than number in chart indicates a shorted starter motor, which could be dangerous. Fig If amperage is within specification, check RPM of starter motor using tachometer. NOTE: If the 0 volt AC starter motor does not meet the specifications listed, the motor must be replaced. NOTE: SPECIFICATION TABLES BEGIN ON PAGE OF THIS SECTION.

3 Briggs & Stratton Starter Motors L 0 Volt AC; Volt DC with Housings /6 (78.0 mm) to 9/6 (.9 mm) long Model Series 70000, 90000, 0000, 0000, 0000, and 0000 See Figs. 9 and 0, and Tables No. 6 and 7, Specifications, for motor identification and performance standards. Motor identification code shown (), Fig. 0. Fig. 9 L Volt DC Starter Motor Test Starter Motor DMM (#96) and Tool #99, DC Shunt. Tachometer capable of reading 0,000 RPM. Fully charged volt battery. See Table No. (Nylon Pinion) or Table No. (Steel Pinion), Specifications.. Connect the starter motor, battery and meter as shown in Fig. 7.. Activate the starter motor and note readings of meter (Amps DC) and tachometer (RPM). If the motor does not perform satisfactorily, see Interpreting Starter Motor Test Results page. Test 0 Volt AC Starter Motor Fig. 0 After servicing, the 0 volt starter motor should be Hi-Pot tested by an electric motor repair shop before reinstalling on engine to determine if a shock hazard exists. See Fig. to make a starter mounting test fixture. NOTE: SPECIFICATION TABLES BEGIN ON PAGE OF THIS SECTION.

4 DMM (#96) with AC Shunt, Tool #98. Tachometer capable of reading 0,000 RPM. See Table No. 8, Specifications, for maximum allowable amperage. The following test procedure must be used to avoid any accidental shock hazard to the service technician.. Set meter to AC amps position.. Insert leads into meter and plug starter motor cord into AC shunt, Fig.. Fig.. Connect AC shunt () to a 0 volt outlet.. Depress starter switch button () on control box (). When meter reading stabilizes, (approximately seconds), amperage should not exceed the specification shown.. If starter motor amperage is within specification, check RPM with Tachometer. Test fixture. CAUTION: If amperage is higher than specification shown, immediately stop the test! An amperage reading higher than number in chart indicates a shorted starter motor, which could be dangerous. NOTE: SPECIFICATION TABLES BEGIN ON PAGE OF THIS SECTION.

5 Testing Rectifier Control Assembly Briggs & Stratton 0 Volt Starter Motor The AC control assembly housing contains a spring loaded starter button, cord assembly and rectifier. It is equipped with a three wire grounded receptacle. Fig Disassemble Control Assembly Fig. Disconnect extension cord from AC outlet and control assembly before disassembling.. With control assembly removed from mounting surface, remove three screws holding back plate to housing.. Note position of wires, Figs. and. Fig., Exploded View: Push button switch () Rectifier block () Slots for AC spade terminals () Starter button () Return spring () Common side (6) Normally open (N.O.) side (7) Fig., Wiring Diagram: AC spade terminals () Green wire (ground) () Wire harness to starter motor () Attach black wire to positive corner of block () Short black wire () Add white wire to remaining terminal marked (6) N.O. side of switch (7) Common side of switch (8) AC red lead (9) AC marked on rectifier block (0) Fig. NOTE: SPECIFICATION TABLES BEGIN ON PAGE OF THIS SECTION.

6 Test Rectifier (Shorts or Opens). Remove all wires from rectifier before checking.. Use DMM (#96) or VOA Meter.. Set meter to Diode Test.. Using test leads, place RED test lead and BLACK test lead on rectifier terminals in sequence shown in Fig., and TABLE NO. 8, Specifications.. If test results differ from those shown, the rectifier is defective and must be replaced. A B D C Fig. Test Rectifier (Grounded). Leave DMM in Diode Test position.. With BLACK meter test lead contacting metal rectifier case, touch RED meter test lead to each rectifier terminal.. Meter should display OL at each terminal. If meter makes a continuous tone when any terminal is contacted, the rectifier is grounded and must be replaced.. Set VOA meter to Ohms Position.. With one lead contacting metal rectifier case, touch other lead to each rectifier terminal. There should be no continuity from any terminal to case. 6. Replace rectifier if grounded. 7. To replace rectifier assembly, remove retainer spring washer (). Fig. NOTE: If rectifier post should break, remove post () and drill a /6 (.0 mm) diameter hole in post location (). 8. Locate nut on inside of switch box. Attach rectifier with plastic screw and nut (). Assemble as shown in Fig. 6. /6 (.0 mm) Fig. 6 NOTE: SPECIFICATION TABLES BEGIN ON PAGE OF THIS SECTION.

7 Test Switch. Test switch assembly using the DMM, with meter in Diode Test position.. Attach meter test leads to switch terminals, Fig. 7.. Meter should display OL, indicating no continuity.. When button () is depressed, the meter should make a continuous tone, indicating continuity. Meter should indicate continuity only when button is depressed. When re-assembling switch, position starter button and return spring as noted in Fig.. With the starter motor and controller disassembled, the cord assembly may be tested for continuity using the DMM or VOA meter. Fig. 7 Assemble 0 Volt Control Assembly. Connect wires as shown in Fig... Re-assemble back plate to housing using three screws. CAUTION: Incorrect connection of black and white wires from cord to rectifier will cause motor to run backwards. American Bosch Mitsubishi Gear Drive Starter Motors 0 Volt AC, Volt DC Model Series 70000, The 0 volt electric starter is equipped, and must be used with, a three-prong safety plug. Extension cords must also be three-prong. Service procedures for both the volt and 0 volt starter motors are similar and will be covered together, except where noted. Test Volt DC, 0 Volt AC Starter Motor s (DC) DC Shunt, Tool #99 and DMM (#96) or VOA Meter, #96. Tachometer capable of reading 0,000 RPM. Fully charged volt battery. See Table No. 0, Specifications. NOTE: A 6 volt battery is required in some instances for test purposes only. This allows RPM readings to be made on a lower scale. 6 NOTE: SPECIFICATION TABLES BEGIN ON PAGE OF THIS SECTION.

8 . Set the meter to read (DC AMPS).. Connect the starter motor, battery and meter as Shown in Fig. 8. Optional starter switch () Black lead () Red lead () DC shunt to negative terminal () volt battery () Test fixture (6) from P.. After servicing, the 0 volt starter motor should be Hi-Pot tested by an electric motor repair shop before reinstalling on engine to determine if a shock hazard exists. 6 Fig. 8 It is recommended a battery of ampere hour capacity be used with the volt starter. The battery cable size should be # or #6. NOTE: A battery of higher amperage may be required for extremely cold weather starting conditions.. Activate the starter motor and note readings of meter and tachometer (RPM). Starter should be within specifications. Disregard surge current. If the motor does not perform satisfactorily, see Interpreting Starter Motor Test Results, P. 7. s (AC) See Fig. to make a starter mounting test fixture. DMM (#96) with AC Shunt, Tool #98 (), Fig. 9. Tachometer capable of reading 0,000 RPM. See Table No. 0, Specifications, for maximum allowable amperage. Extreme care should be used in making this test to minimize the hazard of electrical shock. Fig. 9. Clamp the starter motor test fixture in a vise as shown in Fig. 9.. Set meter to AC amps.. Insert leads into meter and plug starter motor cord into AC adapter.. Connect AC adapter to a 0 volt outlet. NOTE: SPECIFICATION TABLES BEGIN ON PAGE OF THIS SECTION. 7

9 . Depress starter switch. When meter reading stabilizes (approximately seconds), amperage should not exceed the specification shown. CAUTION: If amperage is higher than specification shown, immediately stop the test! An amperage reading higher than number in chart indicates a shorted starter motor, which could be dangerous. 6. If amperage is within specification, check RPM of starter motor. CAUTION, ALL SYSTEMS: Starter motor housing may contain ceramic magnets that can crack if motor housing is clamped in a vise or struck with a hammer or hard object. CAUTION, ALL SYSTEMS: Do not run starter motors for more than one minute without cooling minutes. Test Starter Motor Drive and Clutch (Typical, v and 0v) When the starter is activated, the pinion gear should engage the flywheel ring gear and crank the engine. This can be observed by removing the starter cover, if present. If the pinion gear does not engage the flywheel, inspect the pinion gear and helix for freeness of operation, Fig. 0. If any sticking occurs, the parts may be washed in a solvent such as Stanisol or Varsol. Do not lubricate drive parts except with dry silicone spray. If the problem persists, check disassembly, assembly instructions regarding serviceability of starter drive parts. Inspect pinion gear for damaged teeth, and replace if damaged. If the spur gear engages the flywheel, but does not crank the engine, the starter clutch may be defective. The clutch should not slip during normal engine cranking. Fig. 0 8 NOTE: SPECIFICATION TABLES BEGIN ON PAGE OF THIS SECTION.

Page 1 of 1 ALTERNATORS. Overview. Intek TM V-Twin Cylinder OHV Engine Service Manual Version 1.0. Copyright 1999 by Briggs and Stratton Corporation

Page 1 of 1 ALTERNATORS. Overview. Intek TM V-Twin Cylinder OHV Engine Service Manual Version 1.0. Copyright 1999 by Briggs and Stratton Corporation Overview Alternator Identification Page 1 of 3 The alternator systems installed on Briggs & Stratton Intek V-Twin Cylinder OHV Engines can easily be identified by the color of the stator output wires and