FUEL SYSTEM
GOVERNOR GPPUMP GP-FUEL TRANSFER
GOVERNOR GP
FILTER GP-FUEL
BASIC ENGINE
DRIVE GP-ACCESSORYFUEL SYSTEM
GOVERNOR GP#UE0325660060
2L-3057: COMPLETE GOVERNOR GROUP
2L3057 COMPLETE GOVERNOR GROUP--10 Percent Regulation at 1600 R.P.M.
Serial No. 40B1 to 40B500 inclusive
2L3014 Basic Governor parts are shown on Pages 38 and 39
Serial No. 40B1 to 40B500 inclusive
2L3014 Basic Governor parts are shown on Pages 38 and 39
Parts for your D326F MARINE ENGINE:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 2L-3014 Y | [1] | GOVERNOR GROUP | ||
| (SEE SEPARATE ILLUS. FOR PARTS) | ||||
| 1H-2745 | [4] | BUSHING | ||
| (2 IN EACH WEIGHT ASSEM. 1H2747) | ||||
| 3H-9675 | [2] | PIN (SPRING) | ||
| (PART OF SPINDLE ASSEM. 1L8643) | ||||
| 4F-2954 | [2] | PIN | ||
| 2H-2040 | [2] | ROLLER | ||
| (1 OF EACH IN EACH WEIGHT ASSEM. 1H2747) | ||||
| 5H-7057 | [1] | GEAR (24T.) | ||
| 1L-8643 | [1] | SPINDLE ASSEM. | ||
| 3H-9676 | [2] | PIN | ||
| 1H-2747 | [2] | WEIGHT ASSEM. | ||
| (PARTS OF SPINDLE ASSEM. 1L8643) | ||||
| 6H-5669 | [1] | GEAR (40T.) | ||
| 9F-7650 | [1] | SPRING | ||
| Y | SEPARATE ILLUSTRATION | |||
#UE0325660061
5H-7086: FUEL TRANSFER PUMP ASSEMBLY
5H7086 FUEL TRANSFER PUMP ASSEMBLY
Parts for your D326F MARINE ENGINE:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 3H-7054 | [1] | GASKET | ||
| 4B-9050 | [2] | RETAINER | ||
| 6H-9949 | [1] | GASKET | ||
| 4B-9049 | [1] | SPRING | ||
| 1F-5471 | [2] | SEAL | ||
| 1B-4442 | [1] | NUT | ||
| 3B-4608 | [1] | COTTER PIN | ||
| 5H-0370 | [1] | GEAR (8T) | ||
| 3H-1489 | [1] | KEY | ||
| 1F-6887 | [1] | BUSHING | ||
| (PART OF ASSEM 4H9056) | ||||
| 4B-9056 | [1] | SEAT ASSEM | ||
| 5H-6005 | [1] | SEAL | ||
| 0S-1588 H | [3] | CAP SCREW | ||
| 3B-4506 H | [3] | LOCKWASHER | ||
| 7H-0674 | [1] | GASKET | ||
| 3B-8998 H | [1] | FITTING | ||
| 1F-1344 | [1] | NUT | ||
| (PART OF FITTING 3B8998) | ||||
| 0S-1608 H | [3] | CAP SCREW | ||
| 3B-4506 H | [3] | LOCKWASHER | ||
| 1L-8781 H | [1] | COVER | ||
| 1L-8779 H | [1] | ADAPTER | ||
| 5H-9681 | [2] | GASKET | ||
| 5H-7076 | [1] | BODY ASSEM | ||
| 8H-4743 | [1] | SHAFT ASSEM | ||
| (10T.-DRIVE) | ||||
| H | [1] | CAP SCREW (4"LONG) | ||
| 3B-4506 H | [1] | LOCKWASHER | ||
| 1A-2029 | [1] | CAP SCREW (1 1/8"LONG) | ||
| 3B-4506 | [1] | LOCKWASHER | ||
| 0S-1618 | [6] | CAP SCREW | ||
| 3B-4505 | [6] | LOCKWASHER | ||
| 0T-0080 | [1] | GEAR (10T) | ||
| 4B-9046 | [1] | COVER | ||
| 1F-2362 | [1] | BUSHING | ||
| 3B-1304 | [1] | SHAFT | ||
| (PARTS OF ASSEM 5H7076) | ||||
| 5H-7162 H | [1] | TUBE | ||
| H | NOT PART OF THIS ASSEM | |||
#UE0325660062
2L-3059: GOVERNOR GROUP
2L3059 GOVERNOR GROUP--10% Regulation at 1500 R.P.M.
2L3014 Basic Governor Group parts are shown on pages 38 and 39
2L3014 Basic Governor Group parts are shown on pages 38 and 39
Parts for your D326F MARINE ENGINE:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 2L-3014 Y | [1] | GOVERNOR GROUP | ||
| (SEE SEPARATE ILLUS. FOR PARTS) | ||||
| 1H-2745 | [4] | BUSHING | ||
| (2 IN EACH ASSEM. 1H2747) | ||||
| 3H-9675 | [2] | ROLL PIN | ||
| (PART OF ASSEM. 1L8643) | ||||
| 4F-2954 | [2] | PIN | ||
| 2H-2040 | [2] | ROLLER | ||
| (1 OF EACH IN EACH ASSEM. 1H2747) | ||||
| 5H-7057 | [1] | GEAR (24 T.) | ||
| 1L-8643 | [1] | SPINDLE ASSEM. | ||
| 3H-9676 | [2] | PIN | ||
| 1H-2747 | [2] | WEIGHT ASSEM. | ||
| (PARTS OF ASSEM. 1L8643) | ||||
| 6H-5669 | [1] | GEAR (40T.) | ||
| 9F-7651 | [1] | SPRING | ||
| Y | SEPARATE ILLUSTRATION | |||
#UE0325660063
3L-7339: GOVERNOR GROUP
3L7339 GOVERNOR GROUP--Part 1 of 2
Serial No. 40B501 to 40B654 inclusive
Serial No. 40B501 to 40B654 inclusive
Parts for your D326F MARINE ENGINE:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1H-0511 | [1] | PIN | ||
| 1H-0514 | [1] | RETAINER | ||
| 1H-0513 | [1] | PLUNGER | ||
| 1H-0516 | [1] | SPRING | ||
| (PARTS OF ASSEM. 5H1201) | ||||
| 0S-1594 | [2] | BOLT | ||
| 3B-4506 | [2] | LOCKWASHER | ||
| 1L-8692 | [1] | BEARING ASSEM. | ||
| 6B-0924 | [1] | BEARING | ||
| (PART OF ASSEM. 1L8692) | ||||
| 2M-8179 | [1] | GEAR (24 T.) | ||
| 5H-9555 | [1] | SCREW | ||
| 6F-5926 | [1] | NUT | ||
| 5H-9556 | [1] | LOCK | ||
| 4F-1515 | [1] | BEARING | ||
| 4H-9699 | [1] | KEY | ||
| 3H-9675 | [1] | PIN | ||
| (PART OF ASSEM. 5H1201) | ||||
| 1L-8694 | [1] | SLEEVE ASSEM. | ||
| 1L-8643 | [1] | SPINDLE ASSEM. | ||
| 3H-9675 | [2] | PIN (SPRING) | ||
| 1H-2747 | [2] | WEIGHT ASSEM. | ||
| 3H-9676 | [2] | PIN | ||
| (PARTS OF ASSEM. 1L8643) | ||||
| 6H-5669 | [1] | GEAR (40 T.) | ||
| 1B-8706 | [1] | KEY | ||
| 7B-4617 | [1] | LOCK | ||
| 5B-1484 | [1] | NUT | ||
| 5H-1124 | [1] | LINK ASSEM. | ||
| 9F-3154 | [1] | PIN | ||
| (PART OF ASSEM. 5H1201) | ||||
| 5H-1201 | [1] | LEVER ASSEM. | ||
| 1L-8633 | [1] | GUIDE ASSEM. | ||
| 1L-8631 | [1] | BUSHING | ||
| (PART OF ASSEM. 1L8633) | ||||
| 6H-9720 | [1] | HOUSING ASSEM. | ||
| 9F-7650 | [1] | SPRING | ||
| 2L-3258 | [1] | SCREW | ||
| 2L-9254 | [1] | LEVER ASSEM. | ||
| 2A-3348 | [1] | DOWEL (1/2" LONG) | ||
| 3H-0868 | [2] | DOWEL (3/4" LONG) | ||
| (PARTS OF ASSEM. 2L9254) | ||||
| 5H-8263 | [1] | GUIDE | ||
| 4F-9503 | [1] | SPRING | ||
| 3H-8727 | [1] | LEVER ASSEM. | ||
| 6H-6918 | [1] | PLUNGER | ||
| 9F-7882 | [1] | PIN (SPRING) | ||
| 4F-4513 | [1] | SCREW | ||
| 1M-0976 | [1] | WASHER | ||
| 1B-4202 | [1] | NUT | ||
| 3H-1118 | [1] | PIN (SPRING) | ||
| (PARTS OF ASSEM. 6H9720) | ||||
| 3H-8728 | [1] | PIN | ||
| 5H-8285 | [1] | ROLLER | ||
| (PARTS OF ASSEM. 3H8727) | ||||
| 5H-2677 | [1] | GASKET | ||
| 5H-9589 | [1] | SCREW | ||
| 8F-5874 | [1] | WASHER | ||
| 8B-5375 | [1] | RETAINER | ||
| 3H-4760 | [1] | GUIDE | ||
| (PARTS OF ASSEM. 6H9720) | ||||
| 1H-2918 | [4] | BLOCK | ||
| 2H-4677 | [2] | DOWEL | ||
| 3B-3911 | [2] | BEARING | ||
| (PARTS OF ASSEM. 5H1201) | ||||
| 9F-1594 | [1] | SHAFT | ||
#UE0325660064
3L-7339: GOVERNOR GROUP
3L7339 GOVERNOR GROUP--Part 2 of 2
Serial No. 40B501 to 40B654 inclusive
Serial No. 40B501 to 40B654 inclusive
Parts for your D326F MARINE ENGINE:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 0L-1351 | [4] | BOLT | ||
| 3B-4506 | [4] | LOCKWASHER | ||
| 1L-8893 | [1] | COVER | ||
| 5H-7295 | [1] | GASKET | ||
| 6F-5559 | [1] | SEAL | ||
| 0L-1351 | [6] | BOLT | ||
| 3B-4506 | [6] | LOCKWASHER | ||
| 3B-1915 | [1] | BOLT | ||
| 1B-4218 | [1] | WASHER | ||
| 5H-1230 | [1] | GASKET | ||
| 2L-2941 | [1] | COVER | ||
| 5H-1311 | [1] | GASKET | ||
| 0L-1143 | [1] | BOLT | ||
| 3B-4506 | [1] | LOCKWASHER | ||
| 9F-1545 | [1] | SUPPORT | ||
| 9F-1479 | [1] | GASKET | ||
| 5H-2573 | [1] | BOLT | ||
| 6F-7062 | [1] | GASKET | ||
| 0S-1618 | [4] | BOLT | ||
| 5B-5492 | [4] | WASHER | ||
| 6H-4407 | [1] | GASKET | ||
| 5H-1234 | [1] | COVER | ||
| 1B-9919 | [1] | SEAL | ||
| 1L-8607 | [1] | COVER ASSEM. | ||
| 0S-1588 | [5] | BOLT | ||
| 1B-4218 | [5] | WASHER | ||
| 4F-4541 | [1] | BEARING | ||
| (PART OF ASSEM. 1L8607) | ||||
| 6F-5282 | [1] | BOLT | ||
| 3B-4508 | [1] | LOCKWASHER | ||
#UE0325660065
3L-7339: GOVERNOR GROUP
3L7339 GOVERNOR GROUP--Part 1 of 2
Effective with Serial No. 40B655
Effective with Serial No. 40B655
Parts for your D326F MARINE ENGINE:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1H-0511 | [1] | PIN | ||
| 1H-0514 | [1] | RETAINER | ||
| 1H-0513 | [1] | PLUNGER | ||
| 1H-0516 | [1] | SPRING | ||
| (PARTS OF ASSEM. 5H1201) | ||||
| 0S-1594 | [2] | BOLT | ||
| 3B-4506 | [2] | LOCKWASHER | ||
| 1L-8692 | [1] | BEARING ASSEM. | ||
| 6B-0924 | [1] | BEARING | ||
| (PART OF ASSEM. 1L8692) | ||||
| 2M-8179 | [1] | GEAR (24 T.) | ||
| 5H-9555 | [1] | SCREW | ||
| 6F-5926 | [1] | NUT | ||
| 5H-9556 | [1] | LOCK | ||
| 4F-1515 | [1] | BEARING | ||
| 4H-9699 | [1] | KEY | ||
| 3H-9675 | [1] | PIN | ||
| (PART OF ASSEM. 5H1201) | ||||
| 1L-8694 | [1] | SLEEVE ASSEM. | ||
| 1L-8643 | [1] | SPINDLE ASSEM. | ||
| 3H-9675 | [2] | PIN (SPRING) | ||
| 1H-2747 | [2] | WEIGHT ASSEM. | ||
| 3H-9676 | [2] | PIN | ||
| (PARTS OF ASSEM. 1L8643) | ||||
| 6H-5669 | [1] | GEAR (40 T.) | ||
| 1B-8706 | [1] | KEY | ||
| 7B-4617 | [1] | LOCK | ||
| 5B-1484 | [1] | NUT | ||
| 5H-1124 | [1] | LINK ASSEM. | ||
| 9F-3154 | [1] | PIN | ||
| (PART OF ASSEM. 5H1201) | ||||
| 5H-1201 | [1] | LEVER ASSEM. | ||
| 1L-8633 | [1] | GUIDE ASSEM. | ||
| 1L-8631 | [1] | BUSHING | ||
| (PART OF ASSEM. 1L8633) | ||||
| 6H-9720 | [1] | HOUSING ASSEM. | ||
| 9F-7651 | [1] | SPRING | ||
| 2L-3258 | [1] | SCREW | ||
| 2L-9254 | [1] | LEVER ASSEM. | ||
| 2A-3348 | [1] | DOWEL (1/2" LONG) | ||
| 3H-0868 | [2] | DOWEL (3/4" LONG) | ||
| (PARTS OF ASSEM. 2L9254) | ||||
| 5H-8263 | [1] | GUIDE | ||
| 5L-1643 | [1] | SPRING | ||
| 3H-8727 | [1] | LEVER ASSEM. | ||
| 6H-6918 | [1] | PLUNGER | ||
| 9F-7882 | [1] | PIN (SPRING) | ||
| 4F-4513 | [1] | SCREW | ||
| 1M-0976 | [1] | WASHER | ||
| 1B-4202 | [1] | NUT | ||
| 3H-1118 | [1] | PIN (SPRING) | ||
| (PARTS OF ASSEM. 6H9720) | ||||
| 3H-8728 | [1] | PIN | ||
| 5H-8285 | [1] | ROLLER | ||
| (PARTS OF ASSEM. 3H8727) | ||||
| 5H-2677 | [1] | GASKET | ||
| 5H-9589 | [1] | SCREW | ||
| 8F-5874 | [1] | WASHER | ||
| 8B-5375 | [1] | RETAINER | ||
| 3H-4760 | [1] | GUIDE | ||
| (PARTS OF ASSEM. 6H9720) | ||||
| 1H-2918 | [4] | BLOCK | ||
| 2H-4677 | [2] | DOWEL | ||
| 3B-3911 | [2] | BEARING | ||
| (PARTS OF ASSEM. 5H1201) | ||||
| 9F-1594 | [1] | SHAFT | ||
#UE0325660066
3L-7339: GOVERNOR GROUP
3L7339 GOVERNOR GROUP--Part 2 of 2
Effective with Serial No. 40B655
Effective with Serial No. 40B655
Parts for your D326F MARINE ENGINE:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 0L-1351 | [4] | BOLT | ||
| 3B-4506 | [4] | LOCKWASHER | ||
| 1L-8893 | [1] | COVER | ||
| 5H-7295 | [1] | GASKET | ||
| 6F-5559 | [1] | SEAL | ||
| 0L-1351 | [6] | BOLT | ||
| 3B-4506 | [6] | LOCKWASHER | ||
| 3B-1915 | [1] | BOLT | ||
| 1B-4218 | [1] | WASHER | ||
| 5H-1230 | [1] | GASKET | ||
| 2L-2941 | [1] | COVER | ||
| 5H-1311 | [1] | GASKET | ||
| 0L-1143 | [1] | BOLT | ||
| 3B-4506 | [1] | LOCKWASHER | ||
| 9F-1545 | [1] | SUPPORT | ||
| 9F-1479 | [1] | GASKET | ||
| 5H-2573 | [1] | BOLT | ||
| 6F-7062 | [1] | GASKET | ||
| 0S-1618 | [4] | BOLT | ||
| 5B-5492 | [4] | WASHER | ||
| 6H-4407 | [1] | GASKET | ||
| 5H-1234 | [1] | COVER | ||
| 1B-9919 | [1] | SEAL | ||
| 1L-8607 | [1] | COVER ASSEM. | ||
| 0S-1588 | [5] | BOLT | ||
| 1B-4218 | [5] | WASHER | ||
| 4F-4541 | [1] | BEARING | ||
| (PART OF ASSEM. 1L8607) | ||||
| 6F-5282 | [1] | BOLT | ||
| 3B-4508 | [1] | LOCKWASHER | ||
#UE0325660067
1L-7900: FUEL FILTER GROUP
1L7900 FUEL FILTER GROUP
Serial No. 40B1 to 40B371 inclusive
Serial No. 40B1 to 40B371 inclusive
Parts for your D326F MARINE ENGINE:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1L-8776 | [1] | COVER ASSEM. | ||
| 1B-4203 | [6] | NUT | ||
| 5H-5601 | [1] | GASKET | ||
| (PART OF ASSEM. 6H5932) | ||||
| 2A-5220 | [1] | PLUG | ||
| 1B-4218 | [1] | WASHER | ||
| 2B-0174 | [3] | PLUG (SLOTTED) | ||
| -OR- | ||||
| 7H-3171 | [3] | PLUG (CONTR. SUNK) | ||
| (PART OF ASSEM. 1L8776) | ||||
| 0L-2070 | [3] | BOLT | ||
| 3B-1915 | [1] | CAP SCREW | ||
| 0T-0431 | [10] | WASHER | ||
| 1L-8777 | [1] | GASKET | ||
| 6H-5932 | [1] | ELEMENT SERVICE ASSEM. | ||
| (INCLUDES 2 ELEMENTS) | ||||
| 5H-7237 | [1] | BASE ASSEM. | ||
| 4F-1450 | [3] | STUD (1 11/16" LONG) | ||
| 6H-0189 | [1] | STUD (2 9/16" LONG) | ||
| (PARTS OF ASSEM. 5H7237) | ||||
| 5H-7111 | [2] | ROD | ||
| 5H-5602 | [2] | SPRING | ||
#UE0325660068
1L-7900: FUEL FILTER GROUP
1L7900 FUEL FILTER GROUP
Serial No. 40B372-Up
Serial No. 40B372-Up
Parts for your D326F MARINE ENGINE:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1L-8776 | [1] | COVER ASSEM. | ||
| 1B-4203 | [6] | NUT | ||
| 5H-5601 | [1] | GASKET | ||
| (PART OF ELEMENT SERVICE ASSEM. 6H5932) | ||||
| 2A-5220 | [1] | PLUG | ||
| 1B-4218 | [1] | WASHER | ||
| 2B-0174 | [3] | PLUG (SLOTTED) | ||
| -OR- | ||||
| 7H-3171 | [3] | PLUG (CONTR. SUNK) | ||
| (PART OF COVER ASSEM. 1L8776) | ||||
| 0L-2070 | [3] | BOLT | ||
| 3B-1915 | [1] | BOLT | ||
| 3B-4506 | [10] | LOCKWASHER | ||
| 0T-0431 | [10] | WASHER | ||
| 1L-8777 | [1] | GASKET | ||
| 6H-5932 | [1] | ELEMENT SERVICE ASSEM. (DISPOSABLE) | ||
| (INCLUDES 2 ELEMENTS) | ||||
| 7H-0834 | [1] | CASE ASSEM. | ||
| [5] | STUD (1.75" LONG) | |||
| 1H-4004 | [1] | STUD (2.6875" LONG) | ||
| (PARTS OF CASE ASSEM. 7H834) | ||||
| 7H-0831 | [2] | ROD | ||
| 7H-0832 | [2] | SPRING | ||
#UE0325660069
5H-9564: FUEL PUMP AND ACCESSORY DRIVE HOUSING GROUP
5H9564 FUEL PUMP AND ACCESSORY DRIVE HOUSING GROUP
Serial No. 40B1 to 40B671 inclusive
Serial No. 40B1 to 40B671 inclusive
Parts for your D326F MARINE ENGINE:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 2F-0361 | [1] | PLUNGER | ||
| 2F-0360 | [1] | SPRING | ||
| 6H-8542 | [1] | PLUG | ||
| 2A-1913 | [1] | GASKET | ||
| 5F-3092 | [2] | SEAL | ||
| 5H-5654 | [2] | BUSHING | ||
| (PART OF ASSEM. 6H1615) | ||||
| 6H-1741 | [1] | GASKET | ||
| 6H-1615 | [1] | ADAPTER ASSEM. | ||
| 0S-1594 | [3] | BOLT | ||
| 0L-0364 | [3] | LOCK | ||
| [1] | NUT | |||
| 3F-8514 | [1] | LOCK | ||
| 5H-9809 | [2] | PIN | ||
| (PART OF ASSEM. 5H9772) | ||||
| 2H-3494 | [1] | KEY | ||
| 5H-5873 | [1] | PLATE | ||
| 4H-7418 | [1] | GEAR (50T.) | ||
| 0S-1595 | [2] | BOLT | ||
| 3B-4508 | [2] | LOCKWASHER | ||
| 1D-4566 | [4] | BOLT | ||
| 3B-4508 | [4] | LOCKWASHER | ||
| 5H-9772 | [1] | SHAFT ASSEM. | ||
| 4B-9880 | [1] | BALL | ||
| (PART OF ASSEM. 6H1615) | ||||
| 1L-8774 | [1] | ADAPTER ASSEM. | ||
| 2B-7408 | [1] | PLUG | ||
| [6] | BOLT | |||
| 3B-4506 | [6] | LOCKWASHER | ||
| 1B-5174 | [2] | PLUG | ||
| 2A-1927 | [1] | VALVE ASSEM. | ||
| 2A-3885 | [1] | GASKET | ||
| 8F-1397 | [1] | SEAT | ||
| 2H-5832 | [2] | FERRULE | ||
| (PART OF ASSEM. 1L8774) | ||||
| 5H-9635 | [1] | DOWEL | ||
| (PART OF ASSEM. 5H9636) | ||||
| 5F-7054 | [2] | SEAL | ||
| 5H-9636 | [1] | COVER ASSEM. | ||
| 5H-7443 | [1] | GASKET | ||
| 0S-1594 | [2] | BOLT | ||
| 3B-4506 | [2] | LOCKWASHER | ||
| 5H-6005 | [1] | SEAL | ||
| 6H-3184 | [1] | SHAFT ASSEM. | ||
| 6H-3172 | [1] | COUPLING | ||
| 0L-0478 | [4] | BOLT | ||
| 8H-7212 | [2] | LOCK | ||
| 6B-4733 | [1] | PIN | ||
| 5H-9634 | [1] | FERRULE | ||
| (PARTS OF ASSEM. 5H9772) | ||||
| 5H-9638 | [1] | GASKET | ||
| 2B-2695 | [5] | BOLT | ||
| 3B-4505 | [5] | LOCKWASHER | ||
Information:
FUEL SYSTEM
GOVERNOR GP
Service Magazine