272144 Vanguard Twin Cylinder OHV BRIGGS & STRATTON.pdf

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The battery is not used for the lights, so lights are available even if the battery is disconnected or removed. Current for the lights is available when the engine is running. The output varies with engine RPM, so the brightness of the lights changes with engine speed. Stator assembly (1), Fig. 19. BLACK lead from stator (2). ÌÌ Connector (3). Two diodes encased in wiring harness (4). WHITE lead – 5 amps DC (–) to lights (5). RED lead – 5 amps DC (+) to battery, clutch (6). Diode Test Fig. 20 Fig. 19 NOTE: One diode is for the charging circuit, the other diode is for the lighting circuit. In the DIODE TEST position, the meter will display the forward voltage drop across the diode(s). If the voltage drop is less than 0.7 volts, the meter will BEEP once as well as display the voltage drop. A CONTINUOUS TONE indicates CONTINUITY (shorted diode). An INCOMPLETE CIRCUIT (open diode) will be displayed as OL. Charging Circuit Test (RED Wire) Output Test 1. Insert RED test lead into V receptacle in meter. 2. Insert BLACK test lead into COM receptacle. 3. Rotate selector to V~ (AC VOLTS) position. 4. Attach RED test lead clip (1) to output terminal (GREEN connector), 20. 5. Attach BLACK test lead clip (2) to engine ground. 6. With engine running at 3600 RPM, output should be no less than 28 VOLTS AC. 7. If NO output or LOW output is found, replace stator. 8. If alternator output is good, test the diodes in the wiring harness. 1. Insert RED test lead into V receptacle in meter. 2. Insert BLACK test lead into COM receptacle in meter. 3. Rotate selector to +))))) (DIODE TEST) position. 4. Attach BLACK test lead clip (2) to point A of the RED wire (3), Fig. 21. (It may be necessary to pierce wire with a pin as shown.) 5. Insert RED test lead (1) into harness connector. a. If meter BEEPS once, diode is OK. b. If meter makes a CONTINUOUS TONE, diode is shorted. Replace harness. c. If meter displays OL proceed to step 6. 6. Reverse test leads. a. If meter BEEPS ONCE, diode is installed backwards. Replace harness. b. If meter still displays OL, diode is open. Replace harness. 39
Fig. 21 A A Fig. 22 Lighting Circuit Test (WHITE Wire) 1. Insert RED test lead into V receptacle in meter. 2. Insert BLACK test lead into COM receptacle. 3. Rotate selector to +))))) (DIODE TEST) position. 4. Attach RED test lead clip (1) to point A, of the WHITE wire (3) Fig. 22. (It may be necessary to pierce wire with a pin as shown.) 5. Insert BLACK test lead probe (2) into harness connector. a. If meter BEEPS once, diode is OK. b. If meter makes a CONTINUOUS TONE, diode is shorted. Replace harness. c. If meter displays OL proceed to step 6. 6. Reverse test leads. 5 & 9 Amp Regulated Alternator The 5 & 9 amp regulated alternator systems provide AC current through a single lead to the regulator-rectifier. The regulator-rectifier converts the AC current to DC and regulates current to the battery. The charging rate will vary with engine RPM and temperature. Alternator output is determined by the flywheel alternator magnet size. The stator and regulator-rectifier are the same for the 5 & 9 amp regulated system and the Tri-Circuit system. Stator assembly (1), Fig. 23. BLACK lead (2). GREEN connector (3). YELLOW wire (4). RED connector (5). Regulator-rectifier (6). a. If meter BEEPS once, diode is installed backwards. Replace harness. b. If meter still displays OL diode is open. Replace harness. NOTE: Service replacement diode harnesses are available. Fig. 23 40
Page 1 and 2: www.mymowerparts.com For Briggs & S
Page 3 and 4: IN THE INTEREST OF SAFETY DANGER FO
Page 5 and 6: WARNING Engines give off carbon mon
Page 7 and 8: BRIGGS & STRATTON MODEL NUMBERING S
Page 9 and 10: Oil Recommendations Oil has four pu
Page 11 and 12: CAUTION: DO NOT use petroleum solve
Page 13 and 14: ÌÌ ÌÌ Fig. 8 ÌÌ Fig.
Page 15 and 16: NOTE: Idle speed may vary according
Page 17 and 18: Remove deposits from combustion cha
Page 19 and 20: The crankcase capacity of Vanguard
Page 21 and 22: 5. Turn fixed speed adjustable cont
Page 23 and 24: Fig. 43 Fig. 45 Oil Cooler 7. With
Page 25 and 26: TUNE-UP PROCEDURE A “Tune-Up,”
Page 28 and 29: Section 2 Troubleshooting Page ELEC
Page 30 and 31: Fouled Plug or Dead Cylinder To tes
Page 32 and 33: Fig. 6 4. Ground the other spar
Page 34 and 35: Charging System Identification Tabl
Page 36 and 37: Testing Alternator Output When test
Page 38 and 39: A Fig. 14 Fig. 15 NOTE: Serv
Page 42 and 43: Output Test WHEN CHECKING ALTERNATO
Page 44 and 45: 7. If NO or LOW output is found, be
Page 46 and 47: POWERLINK SYSTEM Some V-Twin engine
Page 48 and 49: If the previous tests have not reve
Page 50 and 51: Installation 1. Before installing b
Page 52 and 53: 3. Attach BLACK test lead to a good
Page 54 and 55: Oil Pressure Test Switch Use Digit
Page 56 and 57: Wiring Diagram For Starter Panel &
Page 58 and 59: 6. Insert BLACK test lead into COM
Page 60 and 61: Governor Test Dynamic Check Perform
Page 62 and 63: GASEOUS FUELED ENGINES TROUBLESHOOT
Page 64 and 65: GASEOUS FUEL CARBURETOR ADJUSTMENT
Page 66 and 67: Section 3 Engine Disassembly Page A
Page 68 and 69: 21 14 18 20 14 15 16 17 18 19 20 21
Page 70 and 71: Î Î Fig. 4 Horizontal Cranksh
Page 72 and 73: Remove Flywheel Fig. 13 Flywheel Nu
Page 74 and 75: Remove Breather and Starter Motor 1
Page 76 and 77: Section 4 Fuel Systems and Carburet
Page 78 and 79: NOTE: Install the supports over the
Page 80 and 81: Fuel Filter Replace the inline fuel
Page 82 and 83: NOTE: The inspection in Step 2 is p
Page 84 and 85: Fig. 30 Fig. 32 ÎÎÎÎ ÔÔÔ Ô
Page 86 and 87: 21. Position bowl drain as shown. 2
Page 88 and 89: NOTE: The top and bottom edges of t
Page 90 and 91:
NOTE: Use LOCTITE® 222 on screw th
Page 92 and 93:
Fixed Main Jet Sizes Model 351700 L
Page 94 and 95:
Inspect Carburetor Inspect all part
Page 96 and 97:
3. Remove float and inlet needle.
Page 98 and 99:
Inspect Carburetor Inspect all part
Page 100 and 101:
Check Throttle, Choke Shaft and Bod
Page 102 and 103:
ÒÒ ÒÒ ÒÒ Fig. 103
Page 104 and 105:
CAUTION: DO NOT press on float to a
Page 106 and 107:
Remove Carburetor from Manifold Rem
Page 108 and 109:
NOTE: Parts containing rubber, such
Page 110 and 111:
Aisan Carburetor Model 610000 Gener
Page 112 and 113:
NOTE: Use LOCTITE 222 on screw thr
Page 114 and 115:
Section 5 Governor Page GENERAL INF
Page 116 and 117:
3. Loosen governor lever nut (3). 4
Page 118 and 119:
2. If necessary, remove the governo
Page 120 and 121:
Section 6 Cylinder Heads and Valves
Page 122 and 123:
5. Remove intake and exhaust valves
Page 124 and 125:
1. Measure valve stem diameter appr
Page 126 and 127:
Section 7 Starters Page GENERAL INF
Page 128 and 129:
C-Ring Style Disassemble CAUTION
Page 130 and 131:
4. Remove end cap and brush retaine
Page 132 and 133:
Brush retainers can be made from Pa
Page 134 and 135:
Pinion Gear Pinion gear replacement
Page 136 and 137:
Fig. 40 Assemble Pinion Gear 1. Lub
Page 138 and 139:
REWIND STARTER IDENTIFICATION Two r
Page 140 and 141:
ÓÓÓ ÓÓÓ 5. Carefully lift
Page 142 and 143:
ÓÓ ÓÓ ÓÓÓÓÓÓÓÓ ÓÓÓÓ
Page 144 and 145:
Section 8 Lubrication Systems Page
Page 146 and 147:
CRANKCASE BREATHER SERVICE Models 2
Page 148 and 149:
Models 540000, 610000 1. Remove two
Page 150 and 151:
Section 9 Cylinders and Crankcase C
Page 152 and 153:
NOTE: Recondition the cylinder bore
Page 154 and 155:
Insert Bushing Driver #19349 into b
Page 156 and 157:
Section 10 Crankshafts and Camshaft
Page 158 and 159:
INSPECT CAMSHAFT Inspect gear teeth
Page 160 and 161:
Section 11 Pistons, Rings and Conne
Page 162 and 163:
Models 540000, 610000 • Top Compr
Page 164 and 165:
Section 12 Engine Assembly Page ENG
Page 166 and 167:
3. Align timing marks on camshaft a
Page 168 and 169:
Fig. 13 2. Install valve covers wit
Page 170 and 171:
Install Armatures 1. Assemble armat
Page 172 and 173:
ÑÑ ÑÑ Fig. 29 a. Be sure lo
Page 174 and 175:
4. Install breather deflector (4) a
Page 176 and 177:
Final Engine Assembly • Install m
Page 178 and 179:
Section 13 Engine Specifications Pa
Page 180 and 181:
Torque Values Description Torque Ai
Page 182 and 183:
Page 184 and 185:
Page 186 and 187:
Torque Values Description Air Clean
Page 188 and 189:
Starter Motor Support Block A start
Page 190 and 191:
Drill Size - Decimal Equivalent (In
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272144 Vanguard Twin Cylinder OHV BRIGGS & STRATTON.pdf

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