Instruction/ maintenance manual of the product 75 Generac Power Systems
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Diagnostic Repair Manual Diagnostic Repair Manual For more information www .guardiangenerators.com QUIETP ACT ® 55/65/75 Model 4702, 4703, 4707, 4705, 4706, 4707 RECREA TIONAL VEHICLE GENERA TOR.
SAFETY Throughout this publication, "DANGER!" and "CAUTION!" blocks are used to alert the mechanic to special instructions concerning a particular service or operation that might be hazardous if performed incorrectly or carelessly.
T T a a b b l l e e o o f f C C o o n n t t e e n n t t s s Page 1 S S A A F F E E T T Y Y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TEST 9 - Check Brush Leads ...................................................... 43 TEST 10 - Check Brushes & Slip Rings ........................................ 43 TEST 11 - Check Rotor Assembly ................................................ 44 TEST 12 - Check Main Circuit Breaker .
S S e e c c t t i i o o n n 1 1 G G E E N N E E R R A A T T O O R R F F U U N N D D A A M M E E N N T T A A L L S S MA GNETISM Magnetism can be used to produce electricity and electricity can be used to produce magnetism. Much about magnetism cannot be explained by our present knowledge.
S S e e c c t t i i o o n n 1 1 G G E E N N E E R R A A T T O O R R F F U U N N D D A A M M E E N N T T A A L L S S A SIMPLE A C GENERA T OR Figure 1-4 shows a very simple AC Generator. The generator consists of a rotating magnetic field called a ROTOR and a stationary coil of wire called a STA- TOR.
S S e e c c t t i i o o n n 1 1 G G E E N N E E R R A A T T O O R R F F U U N N D D A A M M E E N N T T A A L L S S NOTE: AC output frequency at 3720 rpm will be about 62 Hertz. The “No-Load” is set slightly high to prevent excessive rpm, frequency and voltage droop under heavy electrical loading.
S S e e c c t t i i o o n n 1 1 G G E E N N E E R R A A T T O O R R F F U U N N D D A A M M E E N N T T A A L L S S FIELD BOOST When the engine is cranked during startup, the engine's starter contactor is energized closed. Battery current is then delivered to the starter motor and the engine cranks.
S S e e c c t t i i o o n n 1 1 G G E E N N E E R R A A T T O O R R F F U U N N D D A A M M E E N N T T A A L L S S Figure 1-8. – Connection for 120 Volts Only RECONNECTION FOR DUAL VOLTAGE OUTPUT: When connected for dual voltage output, Stator out- put leads 11P and 44 form two “hot” leads (T1- Red and T3- Black).
S S e e c c t t i i o o n n 2 2 M M A A J J O O R R G G E E N N E E R R A A T T O O R R C C O O M M P P O O N N E E N N T T S S RO T OR ASSEMBL Y The Rotor is sometimes called the “revolving field”, since it provides the magnetic field that induces a voltage into the stationary Stator windings.
S S e e c c t t i i o o n n 2 2 M M A A J J O O R R G G E E N N E E R R A A T T O O R R C C O O M M P P O O N N E E N N T T S S 3. Two excitation winding output leads (No. 2 and 6). These leads deliver unregulated excitation current to the voltage regulator.
S S e e c c t t i i o o n n 2 2 M M A A J J O O R R G G E E N N E E R R A A T T O O R R C C O O M M P P O O N N E E N N T T S S Rotor will be lost. The unit’s AC output voltage will then drop to a value commensurate with the Rotor's residual magnetism (about 7-12 VAC).
S S e e c c t t i i o o n n 2 2 M M A A J J O O R R G G E E N N E E R R A A T T O O R R C C O O M M P P O O N N E E N N T T S S elbow. The breather chamber contains a removable oil vapor collector. Oil vapor is condensed on the col- lector material and drains back into the crankcase, which minimizes the amount of oil vapor entering the breather.
S S e e c c t t i i o o n n 3 3 I I N N S S U U L L A A T T I I O O N N R R E E S S I I S S T T A A N N C C E E T T E E S S T T S S EFFECTS OF DIRT AND MOISTURE Moisture and dirt are detrimental to the continued good operation of any generator set.
S S e e c c t t i i o o n n 3 3 I I N N S S U U L L A A T T I I O O N N R R E E S S I I S S T T A A N N C C E E T T E E S S T T S S C C A A U U T T I I O O N N ! ! : : S S o o m m e e g g e e n n e e .
S S e e c c t t i i o o n n 3 3 I I N N S S U U L L A A T T I I O O N N R R E E S S I I S S T T A A N N C C E E T T E E S S T T S S TEST BETWEEN PARALLEL WINDINGS: Connect the tester leads across Stator leads No. 11P and 33. Apply a voltage of 1500 volts.
S S e e c c t t i i o o n n 4 4 M M E E A A S S U U R R I I N N G G E E L L E E C C T T R R I I C C I I T T Y Y METERS Devices used to measure electrical properties are called meters. Meters are available that allow one to measure (a) AC voltage, (b) DC voltage, (c) AC fre- quency, and (d) resistance In ohms.
S S e e c c t t i i o o n n 4 4 M M E E A A S S U U R R I I N N G G E E L L E E C C T T R R I I C C I I T T Y Y MEASURING A C FREQUENCY The generator's AC output frequency is proportional to Rotor speed. Generators equipped with a 2-pole Rotor must operate at 3600 rpm to supply a frequen- cy of 60 Hertz.
S S e e c c t t i i o o n n 4 4 M M E E A A S S U U R R I I N N G G E E L L E E C C T T R R I I C C I I T T Y Y ELECTRICAL UNITS AMPERE: The rate of electron flow in a circuit is represented by the AMPERE. The ampere is the number of electrons flowing past a given point at a given time.
S S e e c c t t i i o o n n 5 5 E E N N G G I I N N E E D D C C C C O O N N T T R R O O L L S S Y Y S S T T E E M M INTRODUCTION The engine DC control system includes all com- ponents necessary for the operation of the engine. Operation includes rest, priming, crank- ing, starting, running and shutdown.
S S e e c c t t i i o o n n 5 5 E E N N G G I I N N E E D D C C C C O O N N T T R R O O L L S S Y Y S S T T E E M M Page 19 CIRCUIT CONDITION- PRIMING: When the FUEL PRIMER SWITCH (SW2) or the REMOTE PANEL FUEL PRIMER is closed by the oper- ator, battery voltage is delivered across the closed switch contacts and to the FUEL PUMP (FP) via Wire 14A.
S S e e c c t t i i o o n n 5 5 E E N N G G I I N N E E D D C C C C O O N N T T R R O O L L S S Y Y S S T T E E M M Page 20 CIRCUIT CONDITION- CRANKING: When the START-STOP-SWITCH (SW1)or REMOTE PANEL START SWITCH is held at “START” position, Wire 17 from the Engine controller circuit board is con- nected to frame Ground.
S S e e c c t t i i o o n n 5 5 E E N N G G I I N N E E D D C C C C O O N N T T R R O O L L S S Y Y S S T T E E M M Page 21 CIRCUIT CONDITION-RUNNING: With the FUEL PUMP (FP) and FUEL SOLENOID (FS) operating and ignition occurring, the engine should start, and the START-STOP SWITCH (SW1) is released.
S S e e c c t t i i o o n n 5 5 E E N N G G I I N N E E D D C C C C O O N N T T R R O O L L S S Y Y S S T T E E M M Page 22 CIRCUIT CONDITION- SHUTDOWN: Setting the START-STOP SWITCH (SW1) or the REMOTE PANEL START-STOP SWITCH to its “STOP” position connects the Wire 18 circuit to frame ground.
S S e e c c t t i i o o n n 5 5 E E N N G G I I N N E E D D C C C C O O N N T T R R O O L L S S Y Y S S T T E E M M Page 23 CIRCUIT CONDITION- FAULT SHUTDOWN: The engine mounts a HIGH OIL TEMPERA- TURE SWITCH (HTO) and a LOW OIL PRES- SURE SWITCH (LOP).
S S e e c c t t i i o o n n 5 5 E E N N G G I I N N E E D D C C C C O O N N T T R R O O L L S S Y Y S S T T E E M M ENGINE CONTROLLER CIRCUIT BO ARD GENERAL: The engine controller board is responsible for crank- ing, startup, running and shutdown operations.
S S e e c c t t i i o o n n 5 5 E E N N G G I I N N E E D D C C C C O O N N T T R R O O L L S S Y Y S S T T E E M M The following chart applies: C C A A B B L L E E L L E E N N G G T T H H ( ( I I N N F F E E E E T T ) ) R R E E C C O O M M M M E E N N D D E E D D C C A A B B L L E E S S I I Z Z E E 0-10 No.
S S e e c c t t i i o o n n 5 5 E E N N G G I I N N E E D D C C C C O O N N T T R R O O L L S S Y Y S S T T E E M M age is delivered to the Starter Contactor Relay via Wire 56.The Starter Contactor Relay energizes, its contacts close and the Starter Contactor is energized via wire 16.
S S e e c c t t i i o o n n 6 6 T T R R O O U U B B L L E E S S H H O O O O T T I I N N G G F F L L O O W W C C H H A A R R T T S S The “Flow Charts” in this section may be used in con- junction with the “Diagnostic Tests” of Section 7. Numbered tests in the Flow Charts correspond to identically numbered tests of Section 7.
S S e e c c t t i i o o n n 6 6 T T R R O O U U B B L L E E S S H H O O O O T T I I N N G G F F L L O O W W C C H H A A R R T T S S Page 28.
S S e e c c t t i i o o n n 6 6 T T R R O O U U B B L L E E S S H H O O O O T T I I N N G G F F L L O O W W C C H H A A R R T T S S Page 29.
S S e e c c t t i i o o n n 6 6 T T R R O O U U B B L L E E S S H H O O O O T T I I N N G G F F L L O O W W C C H H A A R R T T S S Page 30.
S S e e c c t t i i o o n n 6 6 T T R R O O U U B B L L E E S S H H O O O O T T I I N N G G F F L L O O W W C C H H A A R R T T S S Page 31.
S S e e c c t t i i o o n n 6 6 T T R R O O U U B B L L E E S S H H O O O O T T I I N N G G F F L L O O W W C C H H A A R R T T S S Page 32.
S S e e c c t t i i o o n n 6 6 T T R R O O U U B B L L E E S S H H O O O O T T I I N N G G F F L L O O W W C C H H A A R R T T S S Page 33.
S S e e c c t t i i o o n n 6 6 T T R R O O U U B B L L E E S S H H O O O O T T I I N N G G F F L L O O W W C C H H A A R R T T S S Page 34.
S S e e c c t t i i o o n n 6 6 T T R R O O U U B B L L E E S S H H O O O O T T I I N N G G F F L L O O W W C C H H A A R R T T S S Page 35.
S S e e c c t t i i o o n n 6 6 T T R R O O U U B B L L E E S S H H O O O O T T I I N N G G F F L L O O W W C C H H A A R R T T S S Page 36.
S S e e c c t t i i o o n n 6 6 T T R R O O U U B B L L E E S S H H O O O O T T I I N N G G F F L L O O W W C C H H A A R R T T S S Page 37.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S INTRODUCTION The “Diagnostic Tests” in this chapter may be per- formed in conjunction with the “Flow Charts” of Section 6. Test numbers in this chapter correspond to the numbered tests in the “Flow Charts”.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S GOVERNOR ADJUSTMENT 1. Loosen the GOVERNOR CLAMP BOLT. 2. Push Spring end of GOVERNOR LEVER clockwise to wide open throttle position of lever.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S PROCEDURE: 1. Disconnect Wire 4 from the Voltage Regulator (VR). (Third ter- minal from the top of VR). 2. Connect a jumper wire to Wire 4 and to the 12 volt fused battery positive supply Wire 15 (Wire 15 located at fuse (F1) holder).
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S Excitation Circuit Breaker (CB3). Connect one test lead to one end of Wire 2A and the other test lead to the other end of the same wire. The meter should read continuity.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S PROCEDURE: 1. Disconnect Wire 2 from the Excitation Circuit Breaker. 2. Disconnect Wire 6 from the Voltage Regulator. 3. Set a VOM to its “Rx1” scale and zero the meter.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S 9. Connect the meter test leads across Stator lead 11P and frame ground. “Infinity” should be read. 10. Connect the meter test leads across Stator lead 33 and frame ground.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S 7. Inspect the slip rings. a. If slip rings appear dull or tarnished they may be cleaned and polished with fine sandpaper. DO NOT USE ANY METALLIC GRIT TO CLEAN SLIP RINGS.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S RESULTS: 1. If breaker is “ON” and “Continuity” is measured, go to Test 3. 2. If breaker is “OFF”, reset to the “ON” position and check for AC output.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S Short to Ground: 4. Set the VOM to measure resistance. Connect the positive (+) test lead to the case housing of the BCR. Connect the negative (-) test lead to an outer terminal.
Page 47 S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S 3. In Step 7, if Wire 0 reads “Continuity”, but resistor does not measure 1 ohm, replace the Battery Charge Resistor. 4 . If all of the Steps in this test pass, perform “Insulation Resistance Test” on page 13.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S Figure 7-13. – The LPG Fuel Solenoid (FS) RESULTS: 1. If battery voltage is not indicated in Step 2, check Wire 15 between the Primer Switch and the 7.5 amp fuse for an open condition.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S 3. If the pump fails Step 5 or Step 6, replace the Fuel Pump. Note: If desired, a pressure gauge can be attached to the pumps outlet side. Pump outlet pressure should be 2.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S RESULTS: 1 . If battery voltage is NOT indicated in Step 1, check continuity of: a . Wire 13 between Starter Contactor and Starter Contactor Relay. b. Wire 13 between Starter Contactor Relay and 7.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S 2. If engine cranks in Step 3 when Wire 17 is grounded, but will not crank when the Switch is set to “START”, replace the Start- Stop Switch. 3. If the Start-Stop Switch (SW1) failed any part of Steps 5 or 6, replace the switch.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S RESULTS: 1. If “ Continuity” is not measured in Step 1, repair or replace Wire 0 between the Starter Contactor Relay and the ground terminal.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S PROCEDURE: The battery should have been checked prior to this test and should be fully charged.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S Fi gu re 7- 24 . – Tachometer TEST BRACKET: A starter motor test bracket may be made as shown in Figure 7-25.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S DISCUSSION (LPG MODELS): LP gas is stored in pressure tanks as a liquid. The gas systems used with these generators were designed only for vapor withdrawal type systems.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S water column as measured with a manometer. The LP system must be able to maintain 11-14 inches water column under all load requirements. 1. Turn LP supply to generator off.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S Figure 7-31. – Remote Harness Connector 3. Connect one test lead to Pin Location J1-15. Connect the other test lead to a clean frame ground. “Infinity” should be measured.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S 4. Crank the engine rapidly. Engine must be cranking at 350 rpm or more. If spark jumps the tester gap, you may assume the ignition system is working properly.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S TEST 33 - CHECK SP ARK PLUGS DISCUSSION: During Test 32, if spark jumped the tester gap, the ignition system must be functioning properly. However, if the engine misses the spark plug itself may be fouled.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S Page 60 3. If Step 1 produced spark and Step 2 tested good, set the VOM to measure DC voltage. Connect one test lead to Wire 15 (J3 Terminal) on ECB. Connect the other test lead to frame ground.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S measured. During cranking and running this read- ing should go to “Infinity”. Verify that the meter leads were properly connected as per Step 2 instructions.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S Figure 7-42 – Tightening the Jam Nut INSTALL ROCKER ARM COVER 1. Use a new rocker arm cover gasket. Install the rocker arm cover and retain with four screws.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S ment of the SOLENOID PLUNGER. Adjust SOLENOID PLUNGER movement until, with the carburetor CHOKE PLATE closed, the CHOKE SOLENOID is bottomed in its coil (plunger at full actuated position).
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S TEST 38 - CHECK ENGINE / CYLINDER LEAK DO WN TEST / COMPRESSION TEST GENERAL: Most engine problems may be classified as one or a combination of the following: ❏ Will not start.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S TEST 39 - CHECK OIL PRESSURE SWITCH DISCUSSION: Also see “Operational Analysis” on Pages 18-23. The Low Oil Pressure Switch is normally-closed, but is held open by engine oil pressure during cranking and startup.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S Figure 7-48. – Testing Oil Temperature Switch RESULTS: 1. If the Oil Temperature Switch fails Step 3 or Step 4, replace the Oil Temperature Switch. 2. If the Oil Temperature Switch is good, an overheat condition may be occurring.
S S e e c c t t i i o o n n 7 7 D D I I A A G G N N O O S S T T I I C C T T E E S S T T S S SHORT TO GROUND: Set VOM to measure resistance. Disconnect Wire 14A from the LPG Fuel Solenoid. Connect one meter test lead to LPG Fuel Solenoid. terminal that Wire 14A was just removed from.
S S e e c c t t i i o o n n 8 8 A A S S S S E E M M B B L L Y Y MAJOR DISASSEMBL Y ENCLOSURE/PANEL REMOVAL: 1. Remove enclosure door. 2. Remove the nine (9) enclosure roof bolts from the perimeter of the enclosure roof (a 10mm socket is required).
S S e e c c t t i i o o n n 8 8 A A S S S S E E M M B B L L Y Y BELT TENSIONING: Tighten all four stator stud nuts to compress the spring to one half inch (1/2”) between the washer and support slide. Tighten the two side bolts to compress the spring to 5/8 of an inch between the washer and bearing carrier (see Figure 8-1).
S S e e c c t t i i o o n n 8 8 A A S S S S E E M M B B L L Y Y 8. Remove two (2) bolts holding blower housing on each cylinder head (a 10mm socket is required). 9. Loosen four (4) allen head bolts for intake manifold. Tilt mani- fold forward to gain clearance (using a 6mm allen wrench).
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S S e e c c t t i i o o n n 9 9 E E x x p p l l o o d d e e d d V V i i e e w w s s / / P P a a r r t t N N u u m m b b e e r r s s Page 72 Base & Pulley – Drawing No.
S S e e c c t t i i o o n n 9 9 E E x x p p l l o o d d e e d d V V i i e e w w s s / / P P a a r r t t N N u u m m b b e e r r s s Page 73 I I T T E E M M P P A A R R T T N N O O .
S S e e c c t t i i o o n n 9 9 E E x x p p l l o o d d e e d d V V i i e e w w s s / / P P a a r r t t N N u u m m b b e e r r s s Page 74 Enclosure – Drawing No.
S S e e c c t t i i o o n n 9 9 E E x x p p l l o o d d e e d d V V i i e e w w s s / / P P a a r r t t N N u u m m b b e e r r s s Page 75 I I T T E E M M P P A A R R T T N N O O . . Q Q T T Y Y . . D D E E S S C C R R I I P P T T I I O O N N 1 0D8827 1 PANEL, ENCLOSURE ROOF 2 0A7215 22 SCREW SW 1/4-20X5/8 N WA JS500 3 029451 11.
S S e e c c t t i i o o n n 9 9 E E x x p p l l o o d d e e d d V V i i e e w w s s / / P P a a r r t t N N u u m m b b e e r r s s Page 76 Sheet Metal – Drawing No.
S S e e c c t t i i o o n n 9 9 E E x x p p l l o o d d e e d d V V i i e e w w s s / / P P a a r r t t N N u u m m b b e e r r s s Page 77 I I T T E E M M P P A A R R T T N N O O . . Q Q T T Y Y . . D D E E S S C C R R I I P P T T I I O O N N 1 045756 15 SCREW HHTT M6-1.
S S e e c c t t i i o o n n 9 9 E E x x p p l l o o d d e e d d V V i i e e w w s s / / P P a a r r t t N N u u m m b b e e r r s s Page 78 Control Panel – Drawing No.
S S e e c c t t i i o o n n 9 9 E E x x p p l l o o d d e e d d V V i i e e w w s s / / P P a a r r t t N N u u m m b b e e r r s s Page 79 I I T T E E M M P P A A R R T T N N O O . . Q Q T T Y Y . . D D E E S S C C R R I I P P T T I I O O N N 1 0C2375 2 SCREW HHC M8-1.
S S e e c c t t i i o o n n 9 9 E E x x p p l l o o d d e e d d V V i i e e w w s s / / P P a a r r t t N N u u m m b b e e r r s s Page 80 760 V-Twin Engine – Drawing No.
S S e e c c t t i i o o n n 9 9 E E x x p p l l o o d d e e d d V V i i e e w w s s / / P P a a r r t t N N u u m m b b e e r r s s I I T T E E M M P P A A R R T T N N O O . . Q Q T T Y Y . . D D E E S S C C R R I I P P T T I I O O N N 1 0C5730A 1 ASSEMBLY, CRANKCASE RV 2 0C3008 1 SEAL, 38 I.
S S e e c c t t i i o o n n 9 9 E E x x p p l l o o d d e e d d V V i i e e w w s s / / P P a a r r t t N N u u m m b b e e r r s s Page 82 LP Regulator – Drawing No.
S S e e c c t t i i o o n n 9 9 E E x x p p l l o o d d e e d d V V i i e e w w s s / / P P a a r r t t N N u u m m b b e e r r s s Page 83 I I T T E E M M P P A A R R T T N N O O . . Q Q T T Y Y . . D D E E S S C C R R I I P P T T I I O O N N 1 0D5694 1 CASTING, TWIN REGULATOR HOUSING 2 075475 4 SCREW PPHM M4-0.
S S e e c c t t i i o o n n 1 1 0 0 S S P P E E C C I I F F I I C C A A T T I I O O N N S S & & C C H H A A R R T T S S Page 84 Major Features and Dimensions – Drawing No.
S S e e c c t t i i o o n n 1 1 0 0 S S P P E E C C I I F F I I C C A A T T I I O O N N S S & & C C H H A A R R T T S S Page 85 TYPE QUIETPACT 55 QUIETPACT 65 QUIETPACT 75 MODEL 4702/4703 4704.
S S e e c c t t i i o o n n 1 1 0 0 S S P P E E C C I I F F I I C C A A T T I I O O N N S S & & C C H H A A R R T T S S Page 86 TORQUE SPECIFICA TIONS LONG BLOCK TORQUE REQUIREMENTS HEAD BOLTS 22 ft-lbs (±5%) SUMP COVER BOLTS 36 ft-lbs CONNECTING ROD CAP BOLTS 16.
N N O O T T E E S S Page 87.
S S e e c c t t i i o o n n 1 1 1 1 E E L L E E C C T T R R I I C C A A L L D D A A T T A A Page 88 Electrical Schematic and Wiring Diagram – Drawing No.
S S e e c c t t i i o o n n 1 1 1 1 E E L L E E C C T T R R I I C C A A L L D D A A T T A A Page 89 Electrical Schematic and Wiring Diagram – Drawing No.
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An important point after buying a device Generac Power Systems 75 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Generac Power Systems 75 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Generac Power Systems 75 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Generac Power Systems 75 you will learn all the available features of the product, as well as information on its operation. The information that you get Generac Power Systems 75 will certainly help you make a decision on the purchase.
If you already are a holder of Generac Power Systems 75, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Generac Power Systems 75.
However, one of the most important roles played by the user manual is to help in solving problems with Generac Power Systems 75. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Generac Power Systems 75 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
