HYDRAULIC SYSTEM
VALVE GP-CONTROLVALVE GP
VALVE GP-CONTROL
VALVE GP-PILOT
HYDRAULIC SYSTEM
VALVE GP-CONTROL#M00712140270
479-0569: VALVE GP-CONTROL
479-0569 VALVE GP-CONTROL -BOOM SWING
PART OF 479-0612, 523-3448 VALVE GP-MAIN CONTROL
AN ATTACHMENT
PART OF 479-0612, 523-3448 VALVE GP-MAIN CONTROL
AN ATTACHMENT
Parts for your 308E2 CR MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 479-0582 | [1] | KIT-CONTROL VALVE | |
| 1A. | 6V-5393 | [1] | SEAL-O-RING | |
| 1B. | 1R-5396 M | [2] | BOLT (M6X1X35-MM) | |
| (ALSO INCLUDES CAP-SPOOL) | ||||
| 2. | 479-0585 Y | [1] | MANIFOLD & SOLENOID GP-CONTROL | |
| 3. | 417-5437 | [1] | VALVE GP-CHECK | |
| 4. | 1R-5396 M | [2] | BOLT (M6X1X35-MM) | |
| 5. | 6V-5556 | [1] | SEAL-O-RING | |
| 6. | 6V-5586 | [3] | SEAL-O-RING | |
| M | METRIC PART | |||
| Y | SEPARATE ILLUSTRATION | |||
#M00712140271
479-0570: VALVE GP-CONTROL
479-0570 VALVE GP-CONTROL
PART OF 479-0612, 523-3448 VALVE GP-MAIN CONTROL
AN ATTACHMENT
PART OF 479-0612, 523-3448 VALVE GP-MAIN CONTROL
AN ATTACHMENT
Parts for your 308E2 CR MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 6V-5556 | [1] | SEAL-O-RING | |
| 2. | 6V-5586 | [3] | SEAL-O-RING | |
| 3. | 417-5437 | [1] | VALVE GP-CHECK | |
| 4. | 1R-5396 JM | [4] | BOLT (M6X1X35-MM) | |
| 5. | 6V-5393 J | [1] | SEAL-O-RING | |
| 6. | 479-0585 Y | [1] | MANIFOLD & SOLENOID GP-CONTROL | |
| PARTS SHOWN IN GRAPHIC(S) WITHOUT A REFERENCE NUMBER ARE NOT SERVICED SEPARATELY | ||||
| AVAILABLE REPAIR KIT(S): | ||||
| 479-0582 J | [1] | KIT-CONTROL VALVE | ||
| (ALSO INCLUDES SPOOL CAP) | ||||
| J | KIT MARKED J SERVICES PART(S) MARKED J | |||
| M | METRIC PART | |||
| Y | SEPARATE ILLUSTRATION | |||
#M00712140272
479-0573: VALVE GP-CONTROL
479-0573 VALVE GP-CONTROL -AUXILIARY
PART OF 479-0612, 523-3448 VALVE GP-MAIN CONTROL
AN ATTACHMENT
PART OF 479-0612, 523-3448 VALVE GP-MAIN CONTROL
AN ATTACHMENT
Parts for your 308E2 CR MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 6V-5586 | [3] | SEAL-O-RING | |
| 2. | 479-0585 Y | [1] | MANIFOLD & SOLENOID GP-CONTROL | |
| 3. | 417-5437 | [1] | VALVE GP-CHECK | |
| 4. | 1R-5396 JM | [4] | BOLT (M6X1X35-MM) | |
| 5. | 6V-5393 J | [1] | SEAL-O-RING | |
| 6. | 6V-5556 | [1] | SEAL-O-RING | |
| PARTS SHOWN IN GRAPHIC(S) WITHOUT A REFERENCE NUMBER ARE NOT SERVICED SEPARATELY | ||||
| AVAILABLE REPAIR KIT(S): | ||||
| 479-0582 J | [1] | KIT-CONTROL VALVE | ||
| (ALSO INCLUDES SPOOL CAP) | ||||
| J | KIT MARKED J SERVICES PART(S) MARKED J | |||
| M | METRIC PART | |||
| Y | SEPARATE ILLUSTRATION | |||
#M00712140273
479-0613: VALVE GP-CONTROL
479-0613 VALVE GP-CONTROL -VARIABLE ADJUSTABLE BOOM
PART OF 479-0612, 523-3448 VALVE GP-MAIN CONTROL
AN ATTACHMENT
PART OF 479-0612, 523-3448 VALVE GP-MAIN CONTROL
AN ATTACHMENT
Parts for your 308E2 CR MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 6V-5586 | [3] | SEAL-O-RING | |
| 2. | 479-0585 Y | [1] | MANIFOLD & SOLENOID GP-CONTROL (BOOM SWING) | |
| 3. | 417-5437 | [1] | VALVE GP-CHECK (BUCKET CONTROL) | |
| 4. | 1R-5396 JM | [4] | BOLT (M6X1X35-MM) | |
| 5. | 144-8073 | [4] | LOCKWASHER | |
| 6. | 6V-5393 J | [1] | SEAL-O-RING | |
| 7. | 6V-5556 | [1] | SEAL-O-RING | |
| PARTS SHOWN IN GRAPHIC(S) WITHOUT A REFERENCE NUMBER ARE NOT SERVICED SEPARATELY | ||||
| AVAILABLE REPAIR KIT(S): | ||||
| 519-3220 J | [1] | KIT-COVER | ||
| J | KIT MARKED J SERVICES PART(S) MARKED J | |||
| M | METRIC PART | |||
| Y | SEPARATE ILLUSTRATION | |||
#M00712140274
372-9898: VALVE GP-FLOW CONTROL
372-9898 VALVE GP-FLOW CONTROL -FLOW CONTROL
PART OF 457-9174 LINES GP-PILOT
AN ATTACHMENT
PART OF 457-9174 LINES GP-PILOT
AN ATTACHMENT
Parts for your 308E2 CR MINI HYD EXCAVATOR:
CATERPILLAR SIS#M00712140275
479-0612: VALVE GP-MAIN CONTROL
479-0612 VALVE GP-MAIN CONTROL
S/N W8S1-276
PART OF 486-6627 CONTROL AR-AUXILIARY
AN ATTACHMENT
S/N W8S1-276
PART OF 486-6627 CONTROL AR-AUXILIARY
AN ATTACHMENT
Parts for your 308E2 CR MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 438-8452 | [1] | KIT-FASTENER | |
| (INCLUDES TIE RODS, WASHERS & NUTS) | ||||
| 2. | 417-5181 | [14] | KIT-SEAL | |
| (INCLUDES O-RING SEALS) | ||||
| 3. | 479-0574 | [1] | MANIFOLD GP-CONTROL (INLET) | |
| 4. | 479-0553 Y | [1] | VALVE GP-CONTROL (SWING) | |
| 5. | 479-0557 Y | [1] | VALVE GP-CONTROL (BOOM)(BOOM) | |
| 6. | 417-8390 | [2] | VALVE GP-CONTROL (PRIORITY) | |
| (EACH INCLUDES) | ||||
| 449-1648 | [1] | VALVE GP-CHECK | ||
| 2M-9780 | [1] | SEAL-O-RING | ||
| 449-1649 | [1] | VALVE-CHECK | ||
| 7. | 479-0559 Y | [1] | VALVE GP-CHECK (TRAVEL LEFT) | |
| 7A. | 479-0559 Y | [1] | VALVE GP-CHECK (TRAVEL RIGHT) | |
| 8. | 479-0560 Y | [1] | VALVE GP-CONTROL (BUCKET) | |
| 9. | 479-0567 Y | [1] | VALVE GP-CONTROL (STICK)(STICK) | |
| 10. | 479-0568 Y | [1] | VALVE GP-CONTROL (BLADE) | |
| 11. | 479-0570 Y | [1] | VALVE GP-CONTROL (AUXILIARY 1)(AUXILIARY 1) | |
| 12. | 479-0569 Y | [1] | VALVE GP-CONTROL (BOOM SWING) | |
| 13. | 479-0573 Y | [1] | VALVE GP-CONTROL (AUXILIARY 2) | |
| 14. | 417-5121 | [1] | MANIFOLD GP-CONTROL (OUTLET) | |
| 15. | 417-5438 | [1] | VALVE GP-RELIEF (BUCKET DIG) | |
| 15A. | 417-5438 | [1] | VALVE GP-RELIEF (STICK OUT) | |
| 15B. | 417-5438 | [1] | VALVE GP-RELIEF (BUCKET DUMP) | |
| 15C. | 417-5438 | [1] | VALVE GP-RELIEF (STICK OUT) | |
| 15D. | 417-5438 | [1] | VALVE GP-RELIEF (BLADE DOWN) | |
| 15E. | 417-5438 | [1] | VALVE GP-RELIEF (BOOM UP) | |
| 15F. | 417-5438 | [1] | VALVE GP-RELIEF (AUXILIARY) | |
| 15G. | 417-5438 | [1] | VALVE GP-RELIEF (BLADE DOWN) | |
| (EACH VALVE GP-RELIEF INCLUDES) | ||||
| 8T-7877 | [1] | SEAL-O-RING | ||
| 16. | 417-8389 | [1] | VALVE GP-RELIEF (BOOM) | |
| 8T-7877 | [1] | SEAL-O-RING | ||
| 17. | 456-1861 Y | [2] | VALVE GP-RELIEF (PILOT OPERATED)(PILOT OPERATED) | |
| 18. | 438-8463 | [1] | VALVE GP-SHUTOFF (BLADE LIFT) | |
| 18A. | 438-8463 | [1] | VALVE GP-SHUTOFF (BOOM SWING, RIGHT) | |
| (EACH VALVE GP-SHUTOFF INCLUDES) | ||||
| 8T-7877 | [1] | SEAL-O-RING | ||
| 19. | 456-1828 | [1] | VALVE GP-PRESSURE REDUCING | |
| 454-7880 | [1] | KIT-SEAL | ||
| (INCLUDES 0-RING SEALS & BACKUP RINGS) | ||||
| 20. | 423-4562 | [1] | VALVE GP-SOLENOID (PILOT SUPPLY) | |
| 20A. | 423-4562 | [1] | VALVE GP-SOLENOID (TRAVEL SPEED) | |
| (EACH VALVE GP-SOLENOID INCLUDES) | ||||
| 473-7030 | [1] | COIL AS (12 VDC) | ||
| 21. | 4Z-5794 | [2] | PLUG AS | |
| 22. | 438-8465 | [1] | VALVE GP-MAKEUP (BOOM SWING, RIGHT) | |
| 8T-7877 | [1] | SEAL-O-RING | ||
| 23. | 479-0613 Y | [1] | VALVE GP-CONTROL (VARIABLE ADJUSTABLE BOOM)(VARIABLE ADJUSTABLE BOOM) | |
| Y | SEPARATE ILLUSTRATION | |||
#M00712140276
523-3448: VALVE GP-MAIN CONTROL
523-3448 VALVE GP-MAIN CONTROL
S/N W8S277-UP
PART OF 486-6627 CONTROL AR-AUXILIARY
AN ATTACHMENT
S/N W8S277-UP
PART OF 486-6627 CONTROL AR-AUXILIARY
AN ATTACHMENT
Parts for your 308E2 CR MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 438-8452 | [1] | KIT-FASTENER | |
| (INCLUDES TIE RODS, WASHERS & NUTS) | ||||
| 2. | 417-5181 | [14] | KIT-SEAL | |
| (INCLUDES O-RING SEALS) | ||||
| 3. | 479-0574 | [1] | MANIFOLD GP-CONTROL (INLET) | |
| 4. | 479-0553 Y | [1] | VALVE GP-CONTROL (SWING) | |
| 5. | 479-0557 Y | [1] | VALVE GP-CONTROL (BOOM) | |
| 6. | 417-8390 | [2] | VALVE GP-CONTROL (PRIORITY) | |
| (EACH INCLUDES) | ||||
| 449-1648 | [1] | VALVE GP-CHECK | ||
| 2M-9780 | [1] | SEAL-O-RING | ||
| 449-1649 | [1] | VALVE-CHECK | ||
| 7. | 479-0559 Y | [1] | VALVE GP-CHECK (TRAVEL LEFT) | |
| 7A. | 479-0559 Y | [1] | VALVE GP-CHECK (TRAVEL RIGHT) | |
| 8. | 479-0560 Y | [1] | VALVE GP-CONTROL (BUCKET) | |
| 9. | 479-0567 Y | [1] | VALVE GP-CONTROL (STICK) | |
| 10. | 479-0568 Y | [1] | VALVE GP-CONTROL (BLADE) | |
| 11. | 479-0570 Y | [1] | VALVE GP-CONTROL (AUXILIARY 1) | |
| 12. | 479-0569 Y | [1] | VALVE GP-CONTROL (BOOM SWING) | |
| 13. | 479-0573 Y | [1] | VALVE GP-CONTROL (AUXILIARY 2) | |
| 14. | 417-5121 | [1] | MANIFOLD GP-CONTROL (OUTLET) | |
| 15. | 417-5438 | [1] | VALVE GP-RELIEF (BOOM DOWN) | |
| 15A. | 417-5438 | [1] | VALVE GP-RELIEF (BUCKET DUMP) | |
| 15B. | 417-5438 | [1] | VALVE GP-RELIEF (STICK IN) | |
| 15C. | 417-5438 | [1] | VALVE GP-RELIEF (BOOM DOWN) | |
| 15D. | 417-5438 | [1] | VALVE GP-RELIEF (BOOM UP) | |
| 15E. | 417-5438 | [1] | VALVE GP-RELIEF (STICK OUT) | |
| 15F. | 417-5438 | [1] | VALVE GP-RELIEF (BUCKET CONTROL) | |
| 16. | 523-3494 | [1] | VALVE GP-RELIEF (BOOM UP) | |
| (EACH VALVE GP-RELIEF INCLUDES) | ||||
| 8T-7877 | [1] | SEAL-O-RING | ||
| 17. | 456-1861 Y | [2] | VALVE GP-RELIEF (PILOT OPERATED) | |
| 18. | 438-8463 | [1] | VALVE GP-SHUTOFF (BLADE LIFT) | |
| 18A. | 438-8463 | [1] | VALVE GP-SHUTOFF (BOOM SWING, RIGHT) | |
| (EACH INCLUDES) | ||||
| 8T-7877 | [1] | SEAL-O-RING | ||
| 19. | 558-9827 | [1] | VALVE GP-PRESSURE REDUCING (PILOT) | |
| 559-2265 | [1] | KIT-SEAL | ||
| (INCLUDES 0-RINGS & BACKUP RINGS) | ||||
| 20. | 503-6530 | [1] | VALVE GP-SOLENOID (PILOT SUPPLY) | |
| 20A. | 503-6530 | [1] | VALVE GP-SOLENOID (TRAVEL SPEED) | |
| (EACH INCLUDES) | ||||
| 114-2772 | [1] | NUT (1/2-20-THD) | ||
| 272-6538 | [1] | KIT-SEAL | ||
| (INCLUDES O-RING SEALS & RING-BACKUPS) | ||||
| 473-7030 | [1] | COIL AS (12 VDC) | ||
| 21. | 4Z-5794 | [2] | PLUG AS | |
| 22. | 479-0613 Y | [1] | VALVE GP-CONTROL (VARIABLE ADJUSTABLE BOOM) | |
| 23. | 438-8465 | [1] | VALVE GP-MAKEUP (BOOM SWING, LEFT) | |
| 8T-7877 | [1] | SEAL-O-RING | ||
| 24. | 558-9839 | [1] | VALVE AS-RELIEF (BLADE LIFT) | |
| 8T-7877 | [1] | SEAL-O-RING | ||
| Y | SEPARATE ILLUSTRATION | |||
#M00712140277
417-1063: VALVE GP-PILOT
417-1063 VALVE GP-PILOT -BLADE CONTROL
PART OF 415-4385 CONTROL GP-PILOT OPERATED HYD
ALSO AN ATTACHMENT
PART OF 415-4385 CONTROL GP-PILOT OPERATED HYD
ALSO AN ATTACHMENT
Parts for your 308E2 CR MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 198-7543 | [2] | GUIDE | |
| 2. | 198-8153 | [2] | SCREW | |
| 3. | 7I-2753 | [1] | SEAT | |
| 4. | 102-0818 | [1] | PLUG | |
| 5. | 421-5346 | [1] | SPRING | |
| 6. | 198-8156 | [1] | BOOT | |
| 7. | 198-8161 | [2] | SPRING | |
| 8. | 417-1111 | [1] | SPRING | |
| 9. | 8T-3998 M | [1] | BOLT (M4X0.7X12-MM) | |
| 10. | 8T-8442 M | [2] | BOLT-SOCKET HEAD (M6X1X30-MM) | |
| 11. | 8T-1158 M | [2] | BOLT-SOCKET HEAD (M8X1.25X20-MM) | |
| 12. | 095-1260 M | [1] | SETSCREW-SOCKET (M6X1X6-MM) | |
| 13. | 198-8167 | [2] | NUT | |
| 14. | 095-1514 | [2] | SEAL-O-RING | |
| 15. | 8T-0211 | [2] | SEAL-O-RING | |
| 16. | 3J-1907 | [1] | SEAL-O-RING | |
| 17. | 204-1976 | [1] | LEVER AS | |
| M | METRIC PART | |||
#M00712140278
417-1100: VALVE GP-PILOT
417-1100 VALVE GP-PILOT -WITH SHUTTLE
PART OF 415-4370, 415-4371 LINES GP-PILOT
AN ATTACHMENT
PART OF 415-4370, 415-4371 LINES GP-PILOT
AN ATTACHMENT
Parts for your 308E2 CR MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 7I-8084 | [5] | PLUG | |
| 2. | 087-4707 | [4] | SPRING | |
| 3. | 087-5708 | [2] | PEDAL | |
| 4. | 099-6137 | [4] | WASHER (6.1X9X0.2-MM THK) | |
| 5. | 099-6144 | [4] | BUSHING-TERMINAL | |
| 6. | 099-6145 | [2] | CAMSHAFT | |
| 7. | 119-5388 | [4] | CAP | |
| 8. | 119-5389 | [4] | PACKING | |
| 9. | 119-5391 | [4] | SEAT | |
| 10. | 126-1865 | [4] | SPRING | |
| 11. | 126-1866 | [4] | SPRING | |
| 12. | 153-5223 | [12] | BALL | |
| 13. | 165-9552 | [4] | PUSHROD | |
| 14. | 165-9554 | [4] | PLUG | |
| 15. | 185-0522 | [4] | SEAT | |
| 16. | 295-8123 | [4] | SPRING | |
| 17. | 310-0420 | [4] | SEAL-O-RING | |
| 18. | 310-0422 | [3] | SEAT | |
| 19. | 331-9872 | [4] | SEAT | |
| 20. | 369-8507 | [3] | PLUG-O-RING | |
| 21. | 369-8509 | [2] | COVER | |
| 22. | 369-8510 | [1] | COVER | |
| 23. | 369-8568 M | [2] | BOLT-SOCKET HEAD (M10X1.5X65-MM) | |
| 24. | 369-8569 | [2] | BELLOWS | |
| 25. | 087-4710 M | [4] | SETSCREW (M10X21-MM) | |
| 26. | 095-1260 M | [2] | SETSCREW-SOCKET (M6X1X6-MM) | |
| 27. | 095-1575 | [5] | SEAL-O-RING | |
| 28. | 3Y-9267 | [3] | BALL | |
| 29. | 6V-8202 M | [2] | BOLT-SOCKET HEAD (M8X1.25X16-MM) | |
| 30. | 6V-8400 | [4] | SEAL-O-RING | |
| 31. | 8C-6965 M | [2] | BOLT-SOCKET HEAD (M6X1X45-MM) | |
| 32. | 8T-4133 M | [4] | NUT (M10X1.5-THD) | |
| M | METRIC PART | |||
#M00712140279
467-3071: VALVE GP-PILOT
Parts for your 308E2 CR MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 165-9438 | [1] | PLATE | |
| 2. | 096-1628 | [4] | PLUG | |
| 3. | 135-8956 | [2] | ROD | |
| 4. | 132-7710 | [2] | ROD | |
| 5. | 094-0876 | [4] | SEAL | |
| 6. | 095-1586 | [4] | SEAL-O-RING | |
| 7. | 300-5023 | [2] | SEAT | |
| 8. | 165-9435 | [2] | SEAT | |
| 9. | 099-6137 | [4] | WASHER (6.1X9X0.2-MM THK) | |
| 10. | 190-7750 | [4] | SPRING | |
| 11. | 393-2856 | [2] | SPRING | |
| 12. | 393-2855 | [2] | SPRING | |
| 13. | 4I-6365 | [1] | JOINT | |
| 14. | 165-9431 | [1] | PLATE | |
| 15. | 212-0522 | [1] | NUT | |
| 16. | 352-6826 | [1] | BELLOWS |
Information:
HYDRAULIC SYSTEM
VALVE GP-CONTROL
Operation and Maintenance Manual
Service Letter-NACD
PRODUCT SUPPORT PROGRAM FOR IMPROVING THE BOOM PERFORMANCE ON CERTAIN 308E2 MINI HYDRAULIC EXCAVATORS
PRODUCT SUPPORT PROGRAM FOR IMPROVING THE BOOM PERFORMANCE ON CERTAIN 308E2 MINI HYDRAULIC EXCAVATORS
PRODUCT SUPPORT PROGRAM FOR IMPROVING THE BOOM PERFORMANCE ON CERTAIN 308E2 MINI HYDRAULIC EXCAVATORS
Service Letter-Australia
Service Letter-CFEL
Service Letter-CSARL
Service Letter-Americas
Specifications
Service Letter-China
PRODUCT SUPPORT PROGRAM FOR IMPROVING THE BOOM PERFORMANCE ON CERTAIN 308E2 MINI HYDRAULIC EXCAVATORS
PRODUCT SUPPORT PROGRAM FOR IMPROVING THE BOOM PERFORMANCE ON CERTAIN 308E2 MINI HYDRAULIC EXCAVATORS
PRODUCT SUPPORT PROGRAM FOR IMPROVING THE BOOM PERFORMANCE ON CERTAIN 308E2 MINI HYDRAULIC EXCAVATORS
Service Letter-Asia
Systems Operation
Service Letter-APD
PRODUCT SUPPORT PROGRAM FOR IMPROVING THE BOOM PERFORMANCE ON CERTAIN 308E2 MINI HYDRAULIC EXCAVATORS
PRODUCT SUPPORT PROGRAM FOR IMPROVING THE BOOM PERFORMANCE ON CERTAIN 308E2 MINI HYDRAULIC EXCAVATORS
PRODUCT SUPPORT PROGRAM FOR IMPROVING THE BOOM PERFORMANCE ON CERTAIN 308E2 MINI HYDRAULIC EXCAVATORS
Testing and Adjusting
Disassembly and Assembly
Main Control Valve - Remove and Install
308E2 CR Mini Hydraulic Excavator Variable Angle Boom (VAB) Machine Systems
308E2 CR Mini Hydraulic Excavator Variable Angle Boom (VAB) Machine Systems
Main Control Valve - Disassemble
308E2 CR Mini Hydraulic Excavator Variable Angle Boom (VAB) Machine Systems
308E2 CR Mini Hydraulic Excavator Variable Angle Boom (VAB) Machine Systems
Main Control Valve - Assemble
308E2 CR Mini Hydraulic Excavator Variable Angle Boom (VAB) Machine Systems
308E2 CR Mini Hydraulic Excavator Variable Angle Boom (VAB) Machine Systems