Generac 0D9727 User Manual

0D9727

7.5LITER

DIESEL

ENGINE

PARTS

MANUAL

P.O. BOX 8 WAUKESHA WI 53187

PRINTED IN U.S.A.

ISSUED: 03/01/02

7.5L DIESEL TABLE OF CONTENTS

LEGEND

“AR” AS REQUIRED (STD) STANDARD SIZE “O.S.” OVERSIZE “U.S.” UNDERSIZE

NOTICE! THE INFORMATION IN THIS MANUAL IS KNOWN TO BE ACCURATE AS OF THE DATE OF RELEASE SHOWN ON THE COVER. HOWEVER, ENGINEERING CHANGES CAN OCCUR WITHOUT NOTICE.TO OBTAIN THE PROPER PARTS, PLEASE BE SURE TO USE THE MODEL NUMBER OF THE UNIT BEING SERVICED WHEN ORDERING FROM THIS MANUAL.

QUICK REFERENCE GUIDE .............................................................................................................................. 2

SERVICE RECOMMENDATIONS ........................................................................................................................ 4

CYLINDER HEAD ASSEMBLY ............................................................................................................................ 8

CYLINDER BLOCK ASSEMBLY .......................................................................................................................... 9

LINER AND PISTON KIT .................................................................................................................................... 10

CRANKSHAFT ASSEMBLY ................................................................................................................................ 11

ROCKER COVER AND BREATHER .................................................................................................................. 12

CYLINDER HEAD .............................................................................................................................................. 13

CYLINDER BLOCK ............................................................................................................................................ 14

OIL PAN ASSEMBLY .......................................................................................................................................... 16

ENGINE GASKET KIT ........................................................................................................................................ 17

FLYWHEEL AND HOUSING .............................................................................................................................. 18

PISTON AND CONNECTING ROD .................................................................................................................... 20

CRANKSHAFT .................................................................................................................................................... 21

CAMSHAFT AND VALVE .................................................................................................................................... 22

TIMING GEAR .................................................................................................................................................... 24

ATTACHING PARTS ............................................................................................................................................ 26

OIL PUMP AND STRAINER .............................................................................................................................. 28

OIL FILTER ........................................................................................................................................................ 30

OIL COOLER ...................................................................................................................................................... 31

OIL LINE ............................................................................................................................................................ 32

FUEL FILTER AND HOSE .................................................................................................................................. 34

FUEL INJECTION PUMP .................................................................................................................................. 36

INJECTION PIPE ................................................................................................................................................ 38

INJECTION NOZZLE .......................................................................................................................................... 40

FUEL RETURN HOSE ........................................................................................................................................ 42

ENGINE MOUNTING AND SUPPORT .............................................................................................................. 43

WATER PUMP AND FAN .................................................................................................................................... 44

WATER PIPE AND THERMOSTAT .................................................................................................................... 45

INTAKE MANIFOLD ............................................................................................................................................ 46

EXHAUST MANIFOLD ........................................................................................................................................ 47

TURBOCHARGER .............................................................................................................................................. 48

EXHAUST PIPE .................................................................................................................................................. 49

STARTER ............................................................................................................................................................ 50

ALTERNATOR .................................................................................................................................................... 51

ENGINE COMMON PARTS ................................................................................................................................ 52

ELECTRONIC GOVERNOR .............................................................................................................................. 54

AIR CLEANER .................................................................................................................................................... 55

7.5L DIESEL QUICK REFERENCE GUIDE

SPECIFICATIONS:

CRANKCASE OIL CAPACITY: 6.0 U.S. GALLONS (22.7 LITERS) COOLING SYSTEM CAPACITY: 11.2 U.S. GALLONS (42.4 LITERS)

RECOMMENDED FLUIDS

COOLANT:

USE A 50/50 MIXTURE OF LOW SILICATE ETHYLENE GLYCOL BASE ANTI-FREEZE AND SOFT WATER. (IF DESIRED, A HIGH QUALITY

RUST INHIBITOR MAY BE ADDED TO THE RECOMMENDED COOLANT MIXTURE.) WHEN ADDING COOLANT, ALWAYS ADD THE REC-

OMMENDED 50/50 MIXTURE.

ENGINE OIL:

USE A HIGH QUALITY DETERGENT OIL HAVING AAPI CLASSIFICATION “FOR SERVICE CC OR CD.” THE SAE VISCOSITY RATING OF

THE OIL SHOULD BE CAREFULLY SELECTED, BASED ON THE PREVAILING AMBIENT TEMPERATURE RANGE ANTICIPATED BEFORE

THE NEXT OIL CHANGE. RECOMMENDED SAE VISCOSITY GRADES ARE AS FOLLOWS:

TEMPERATURE

RECOMMENDED OIL GRADE

ABOVE 90°F

32°F TO 90°F

12°F TO 32°F

SAE 40

SAE 30

SAE 20

PART NUMBER DESCRIPTION QTY

0D57030309 OIL FILTER 1 090625 AIR FILTER 1 0D57030353 FUEL FILTER 1 0D57030416 WATER PUMP 1 0D57030468 ALTERNATOR 1 0D57030463 STARTER 1 0D57030436 THERMOSTAT & GASKET KIT 1 0D57030424 ALTERNATOR BELT 1 0D57030106 ENGINE OVERHAUL GASKET KIT AR

7.5L DIESEL QUICK REFERENCE GUIDE

QUICK REFERENCE ENGINE PARTS

7.5L DIESEL SERVICE RECOMMENDATIONS

40 KW - 400 KW STANDBY DIESEL ENGINE DRIVEN GENERATOR SETS

Following is a recommended maintenance schedule for Generac standby diesel engine driven generator sets from 40 kW to 400 kW in size. The established intervals in the schedule are the maximum recommended when the unit is used in an average service application. They will need to be decreased (performed more frequently) if the unit is used in a severe application. Use the unit hour meter or calendar time, whichever occurs first, from the previous maintenance interval to determine the next required maintenance interval.

Service Maintenance Interval Information:

The various service maintenance intervals are designated by interval numbers as follows:

1 An early inspection of the generator set to insure it is ready to operate when required and to identify any

potential problem areas.

Performed monthly or following each 10 hours of operation of the unit and requires approximately .5 man-hours per unit to complete.

This inspection may be performed by the end user providing the following safety steps are taken to prevent the engine from starting automatically without warning:

To prevent injury, perform the following steps in the order indicated before starting any maintenance:

• Disable the generator set from starting and/or connecting to the load by setting the control panel Auto-Off-Manual switch to the “OFF” position.

• Remove the control panel fuse.

• Turn off the battery charger.

• Remove the negative battery cable.

The battery charger must be turned off BEFORE removing the battery cable to prevent an over current condi

ion from burning out sensitive control panel components and circuits.

Following all maintenance, reverse these steps to insure the unit is returned to standby setup for normal operation when required.

2 A break-in service inspection of the generator set to insure it is ready to operate and carry the load when

required, and to identify any potential problem areas.

Performed ONL

Y ONCE

following the first three months or the first 30 hours of operation after purchase

of the unit and requires approximately 2.5 man-hours per unit to complete.

This inspection contains some maintenance tasks which require special tools, equipment, and/or knowledge to accomplish and should be performed only by an authorized Generac Service Dealer.

3 An operational inspection of the generator set to insure it is ready to operate and carry the load when

required, and to identify any potential problem areas.

Performed semi-annually or following each 50 hours of operation of the unit and requires approximately 1.5 man-hours per unit to complete.

This inspection contains some maintenance tasks which require special tools, equipment, and/or knowledge to accomplish and should be performed only by an authorized Generac Service Dealer.

4 A mid-level inspection of the generator set to insure it is ready to operate and carry the load when required,

and to identify any potential problem areas.

Performed annually or following each 100 hours of operation of the unit and requires approximately 5.0 man-hours per unit to complete.

This inspection contains some maintenance tasks which require special tools, equipment, and/or knowledge to accomplish and should be performed only by an authorized Generac Service Dealer.

NOTE: Add 20% to all times for 8 cylinder or larger engines.

7.5L DIESEL SERVICE RECOMMENDATIONS

GENERAC POWER SYSTEMS, INC.

RECOMMENDED SCHEDULED MAINTENANCE PROGRAM

SERVICE WORK TO BE PERFORMED BY FACTORY-TRAINED PERSONNEL ONLY.

DEALER INFORMATION

NAME: ACCOUNT #: ADDRESS:

PHONE: TECHNICIAN: SIGNATURE:

OWNER INFORMA

TION

NAME: ADDRESS:

SITE: PHONE:

SIGNATURE:

PURCHASE DATE: START-UP DATE:

APPLICATION: Standby Power Prime Power Rental/Trailerized

GENERATOR & TRANSFER SWITCH INFORMATION

GENERA

TOR

MODEL NUMBER: SERIAL NUMBER:

TRANSFER SWITCH

MODEL NUMBER: SERIAL NUMBER:

HOUR METER READING

at Completion of the Inspection

WARNING!

To prevent injury, perform the following steps in the order indicated before starting any maintenance:

• Disable the generator set from starting and/or connecting to the load by setting the control panel Auto-Off-Manual switch to the “OFF” position.

• Remove the control panel fuse.

• Turn off the battery charger.

• Remove the negative battery cable.

NOTE:

The battery charger must be turned off BEFORE removing the battery cable to prevent an over current condition from burning out sensitive control panel components and circuits.

Following all maintenance, reverse these steps to insure the unit is returned to standby setup for normal operation when required.

7.5L DIESEL SERVICE RECOMMENDATIONS

Maintenance Level 1 Level 2 Level 3 Level 4

Tasks

Recom- Task Required Task Required Task Task mended Comp. to be done Comp. to be done Comp. Required Comp.

to be done (Date- 3 months/ (Date- Semi- (Date- to be done (Date-

monthly/ Initials) Break-in Initials) annually/ Initials) Annually/ Initials)

10 hrs. 30 hrs. 50 hrs. 100 hrs.

1. Disable the unit from operating per the first page warning.

2. Check the engine oil level. Adjust as necessary.

3. Check the engine coolant level. Adjust as necessary.

4. Check the engine coolant thermal protection level. Correct as necessary.

5. Check the diesel fuel supply level. Fill as necessary.

6. Drain water and sediment from the diesel fuel tank.

7. Drain water from the fuel line water separator if the unit is equipped with one.

8. Check the air inlets and outlets for debris. Clean as necessary.

9. Check the battery electrolyte level if accessible. Adjust as necessary.

10. Check the battery posts, cables, and charger for loose connections, corrosion, and proper operation. Correct as necessary.

11. Check the unit wiring for loose connections, corrosion, and damage. Correct as necessary.

12. Check the engine accessory drive belts for wear, weather cracking, and damage. Replace as necessary.

13. Visually inspect the unit looking for leaks, wear or damage, loose connections or components, and corrosion. Correct as necessary.

14. Test the engine and transfer switch safety devices. Correct and/or adjust as necessary.

7.5L DIESEL SERVICE RECOMMENDATIONS

Maintenance Level 1 Level 2 Level 3 Level 4

Tasks

Recom- Task Required Task Required Task Task mended Comp. to be done Comp. to be done Comp. Required Comp.

to be done (Date- 3 months/ (Date- Semi- (Date- to be done (Date-

monthly/ Initials) Break-in Initials) annually/ Initials) Annually/ Initials)

10 hrs. 30 hrs. 50 hrs. 100 hrs.

15. Initiate an automatic start and transfer of the unit to site load and exercise it for at least 1 hour looking for leaks, loose connections or components, and abnormal operating conditions. Correct as necessary.

16. Start and exercise the unit at full rated load (use a load bank if the site load is not enough) for at least 2 hours looking for leaks, loose connections or components, and abnormal operating conditions. Correct as necessary.

17. Change the engine oil.

18. Replace the engine oi filter(s).

19. Replace the engine fuel filter(s) and re-prime the fuel system.

20. Replace the engine air filter(s).

21. Perform a 5 minute no-load operational run of the unit looking for any post service problems.

22. Return the unit to standby setup for operation when required.

7.5L DIESEL — CYLINDER HEAD ASSEMBLY

ITEM PART NUMBER DESCRIPTION QTY

01200A 0D57030100 CYLINDER HEAD ASSY 1

7.5L DIESEL — CYLINDER BLOCK ASSEMBLY

ITEM PART NUMBER DESCRIPTION QTY

01300A 0D57030101 CYLINDER BLOCK ASSY 1

7.5L DIESEL — LINER AND PISTON KIT

ITEM PART NUMBER DESCRIPTION QTY

01340 0D57030102 LINER AND PISTON KIT (SIZE 1) AR

0D57030103 LINER AND PISTON KIT (SIZE 2) AR 0D57030104 LINER AND PISTON KIT (SIZE 3) AR

7.5L DIESEL — CRANKSHAFT ASSEMBLY

ITEM PART NUMBER DESCRIPTION QTY

03000A 0D57030105 CRANKSHAFT ASSY 1

ITEM PART NUMBER DESCRIPTION QTY

01100 0D57030107 COVER, ROCKER 1 01110 0D57030108 GASKET, ROCKER COVER 1 01124 0D57030109 JOINT, ROCKER COVER BREATHER HOSE 1 01134 0D57030110 SEAL, ROCKER COVER BOLT 4 01182B 0D57030111 WASHER, ROCKER COVER 4 01198B 0D57030112 BOLT, ROCKER COVER 4 01951B 0D57030113 HOSE, ENGINE BREATHER 1 01978 0D57030114 BOLT, ENGINE BREATHER 3 01978C 0D57030115 BOLT, ENGINE BREATHER 2 01981B 0D57030116 STAY, ENGINE BREATHER 1 01981C 0D57030117 STAY, ENGINE BREATHER 1 01981D 0D57030118 STAY, ENGINE BREATHER 1 01987 0D57030119 CLIP, ENGINE BREATHER 3 01988 0D57030120 CLAMP, ENGINE BREATHER 1 04903A 0D57030121 CAP ASSY, OIL FILLER 1

7.5L DIESEL — ROCKER COVER AND BREATHER137.5L DIESEL — CYLINDER HEAD

ITEM PART NUMBER DESCRIPTION QTY

01210 0D57030122 GASKET, CYLINDER HEAD 1 01282C 0D57030123 STUD, CYLINDER HEAD 12 01287 0D57030124 PLUG, CYLINDER HEAD 6 01296C 0D57030125 CAP, CYLINDER HEAD 5 01296E 0D57030126 CAP, CYLINDER HEAD 18 01298B 0D57030127 BOLT, CYLINDER HEAD 20 01298C 0D57030128 BOLT, CYLINDER HEAD 6 01298E 0D57030129 BOLT, CYLINDER HEAD 6 03407 0D57030130 SEAT, EXHAUST VALVE 6 03411 0D57030131 SEAT, INLET VALVE 6 03460 0D57030132 GUIDE, INLET VALVE 6 03470 0D57030133 GUIDE, EXHAUST VALVE 6

7.5L DIESEL — CYLINDER BLOCK

ITEM PART NUMBER DESCRIPTION QTY

01305 0D57030134 CHECK VALVE 6 01307 0D57030135 COVER, CYLINDER BLOCK 1 01342 0D57030136 CYLINDER LINER (SIZE 1) AR

0D57030137 CYLINDER LINER (SIZE 2) AR

0D57030138 CYLINDER LINER (SIZE 3) AR 01361 0D57030139 OIL SEAL, CYLINDER BLOCK FR COVER 1 01381 0D57030140 OIL JET, CYLINDER BLOCK 6 01385M 0D57030141 PLUG, CYLINDER BLOCK 2 01385N 0D57030142 PLUG, CYLINDER BLOCK 3 01386M 0D57030143 SPRING PIN, CYLINDER BLOCK 6 01386N 0D57030144 SPRING PIN, CYLINDER BLOCK 2 01387H 0D57030145 PIN, CYLINDER BLOCK 1 01387K 0D57030146 PIN, CYLINDER BLOCK 1 01387M 0D57030147 PIN, CYLINDER BLOCK 2 01395BB 0D57030148 CAP, CYLINDER BLOCK 1 01395H 0D57030149 CAP, CYLINDER BLOCK 5 01395J 0D57030150 CAP, CYLINDER BLOCK 1 01395K 0D57030151 CAP, CYLINDER BLOCK 1 01395M 0D57030152 CAP, CYLINDER BLOCK 1 01395N 0D57030153 CAP, CYLINDER BLOCK 1 01395NB 0D57030154 CAP, CYLINDER BLOCK 9 01396B 0D57030155 BUSHING, CYLINDER BLOCK 1 01396C 0D57030156 BUSHING, CYLINDER BLOCK 1 01396D 0D57030157 BUSHING, CYLINDER BLOCK 1 01396E 0D57030158 BUSHING, CYLINDER BLOCK 1 01397J 0D57030159 BOLT, CYLINDER BLOCK 5 01397K 0D57030160 BOLT, CYLINDER BLOCK 5 01397N 0D57030161 BOLT, CYLINDER BLOCK 14 01399N 0D57030162 GASKET, CYLINDER BLOCK 2 03033 0D57030163 OIL SLINGER, CRANKSHAFT, FR 1 03040 0D57030164 BEARING SET, CRANKSHAFT STD 1

0D57030165 BEARING SET, CRANKSHAFT U/S 0.25 AR

0D57030166 BEARING SET, CRANKSHAFT U/S 0.50 AR

0D57030167 BEARING SET, CRANKSHAFT U/S 0.75 AR

0D57030168 BEARING SET, CRANKSHAFT U/S 1.00 AR 03044 0D57030169 PLATE, CRANKSHAFT THRUST STD 3

0D57030170 PLATE, CRANKSHAFT THRUST O/S 0.15 AR

0D57030171 PLATE, CRANKSHAFT THRUST O/S 0.30 AR

0D57030172 PLATE, CRANKSHAFT THRUST O/S 0.45 AR

7.5L DIESEL — OIL PAN ASSEMBLY

ITEM PART NUMBER DESCRIPTION QTY

01500 0D57030173 OIL PAN, ENGINE 1 01521 0D57030174 GASKET, ENGINE OIL PAN DRAIN PLUG 3 01597B 0D57030175 BOLT, ENGINE OIL PAN 35 01598 0D57030176 PLUG, ENGINE OIL PAN 1 01598C 0D57030177 PLUG, ENGINE OIL PAN 1 01598F 0D57030178 PLUG, ENGINE OIL PAN 1 01598G 0D57030179 PLUG, ENGINE OIL PAN 1 04911 0D57030475 GAUGE, OIL LEVEL 1 04912 0D57030476 GUIDE, OIL LEVEL GAUGE 1 04956 0A45310210 BOLT, OIL FILLER 1 04957 0D57030477 BUSHING, OIL FILLER 1

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