225-4529 CYLINDER GP-BUCKET S/N TBA1-UP; WDE1-UP; BWY1-UP 160-MM (6.3-IN) BORE X 1356-MM (53.4-IN) STROKE PART OF 225-4528 CYLINDER & SEAL GP-BUCKET AN ATTACHMENT 345C

HYDRAULIC SYSTEM

CYLINDER GP

0. 225-4529 CYLINDER G
1. 225-4532 CYLINDER G
2. 274-2456 CYLINDER G
3. 274-2459 CYLINDER G
4. 357-9784 CYLINDER G
5. 358-8503 CYLINDER G
6. 236-9769 CYLINDER G
7. 225-4526 CYLINDER G
8. 242-6839 CYLINDER G
9. 274-2453 CYLINDER G
0. INFORMATION

EXCAVATOR 345C EXCAVATOR BWY
345C & 345C L Excavators BWY00001-UP (MACHINE) POWERED BY C13 Engine SEBP4286 345C BWY (2004)

HYDRAULIC SYSTEM

CYLINDER GP

266-8087 CYLINDER GP-BOOM

389-1041 CYLINDER GP-BOOM

225-4529 CYLINDER GP-BUCKET

225-4532 CYLINDER GP-BUCKET

274-2456 CYLINDER GP-BUCKET

274-2459 CYLINDER GP-BUCKET

#SEBP42860600

225-4529: CYLINDER GP-BUCKET

CYLINDER GP-BUCKET

225-4529 CYLINDER GP-BUCKET
S/N TBA1-UP; WDE1-UP; BWY1-UP
160-MM (6.3-IN) BORE X 1356-MM (53.4-IN) STROKE
PART OF 225-4528 CYLINDER & SEAL GP-BUCKET
AN ATTACHMENT

i02212142 SEBP4286

For full view, you need register

Parts for your 345C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	118-3936	[1]	CYLINDER AS
1A.	087-5533	[1]	BUSHING
2.	123-2112 M	[1]	LOCKNUT-SPECIAL (M90X2-THD)
3.	185-0230 J	[2]	RING
4.	9X-3604 J	[1]	SEAL AS
5.	185-0231 J	[1]	RING
6.	185-0232	[1]	PISTON
7.	095-1635 J	[1]	SEAL-O-RING
8.	087-5550 J	[1]	RING-BACKUP
9.	7Y-4944	[1]	RING-RETAINING
10.	114-0762	[1]	BUSHING
11.	333-8687 J	[1]	SEAL-BUFFER
12.	358-8528	[1]	HEAD
13.	7Y-5239 M	[8]	BOLT-SOCKET HEAD (M24X3X100-MM)
14.	333-8688 J	[1]	SEAL-U-CUP
15.	7Y-4941 J	[1]	RING-BACKUP
16.	165-9291 J	[1]	SEAL-LIP TYPE
17.	247-8904	[1]	ROD AS
17A.	087-5548	[1]	BUSHING

			AVAILABLE REPAIR KIT(S):
	333-8750 J	[1]	KIT-SEAL (BUCKET CYLINDER)
	J		KIT MARKED J SERVICES PART(S) MARKED J
	M		METRIC PART
	R		REMANUFACTURED PART MAY BE AVAILABLE

#SEBP42860601

225-4532: CYLINDER GP-BUCKET

CYLINDER GP-BUCKET

225-4532 CYLINDER GP-BUCKET
S/N TBA1-UP; WDE1-UP; BWY1-UP
170-MM (6.7-IN) BORE X 1396-MM (55-IN) STROKE
PART OF 225-4531 CYLINDER & SEAL GP-BUCKET
AN ATTACHMENT

i02210981 SEBP4286

For full view, you need register

Parts for your 345C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	358-8521	[1]	HEAD
2.	7Y-4956 M	[1]	LOCKNUT (M90X2-THD)
3.	9X-3607 J	[1]	SEAL AS
4.	358-8514	[1]	ROD AS
4A.	4I-1520	[1]	BUSHING
5.	234-4516	[1]	CYLINDER AS
5A.	087-5379	[1]	BUSHING
6.	7Y-4941 J	[1]	RING-BACKUP
7.	7Y-4944	[1]	RING-RETAINING
8.	333-8687 J	[1]	SEAL-BUFFER
9.	165-9291 J	[1]	SEAL-LIP TYPE
10.	358-8525	[1]	PISTON
11.	191-5604 J	[2]	RING
12.	191-5605 J	[1]	RING
13.	095-1726 J	[1]	SEAL-O-RING
14.	114-0761	[1]	BUSHING
15.	333-8688 J	[1]	SEAL-U-CUP
16.	7Y-4945 J	[1]	RING-BACKUP
17.	7Y-5239 M	[8]	BOLT-SOCKET HEAD (M24X3X100-MM)

			AVAILABLE REPAIR KIT(S):
	333-8675 J		KIT-SEAL (BUCKET CYLINDER)
	J		KIT MARKED J SERVICES PART(S) MARKED J
	M		METRIC PART
	R		REMANUFACTURED PART MAY BE AVAILABLE

#SEBP42860602

274-2456: CYLINDER GP-BUCKET

CYLINDER GP-BUCKET

274-2456 CYLINDER GP-BUCKET
S/N TBA1-UP; WDE1-UP; BWY1-UP
160-MM (6.3-IN) BORE X 1356-MM (53.4-IN) STROKE
PART OF 274-2455 CYLINDER & SEAL GP-BUCKET
AN ATTACHMENT

i02505112 SEBP4286

For full view, you need register

Parts for your 345C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	9X-3604 J	[1]	SEAL AS
2.	118-3936	[1]	CYLINDER AS
2A.	087-5533	[1]	BUSHING
3.	165-9291 J	[1]	SEAL-LIP TYPE
4.	185-0231 J	[1]	RING
5.	185-0232	[1]	PISTON
6.	247-8904	[1]	ROD AS
6A.	087-5548	[1]	BUSHING
7.	259-0734 J	[1]	SEAL-U-CUP
8.	266-7957 J	[1]	SEAL-BUFFER
9.	266-7960 J	[1]	SEAL-O-RING
10.	7Y-4944	[1]	RING-RETAINING
11.	087-5551	[1]	HEAD
12.	123-2112 M	[1]	LOCKNUT-SPECIAL (M90X2-THD)
13.	185-0230 J	[2]	RING
14.	087-5550 J	[1]	RING-BACKUP
15.	114-0762	[1]	BUSHING
16.	7Y-4941 J	[1]	RING-BACKUP
17.	7Y-5239 M	[8]	BOLT-SOCKET HEAD (M24X3X100-MM)


			AVAILABLE REPAIR KIT(S):
	274-2460 J	[1]	KIT-SEAL (BUCKET CYLINDER)
	J		KIT MARKED J SERVICES PART(S) MARKED J
	M		METRIC PART
	R		REMANUFACTURED PART MAY BE AVAILABLE

#SEBP42860603

274-2459: CYLINDER GP-BUCKET

CYLINDER GP-BUCKET

274-2459 CYLINDER GP-BUCKET
S/N TBA1-UP; WDE1-UP; BWY1-UP
170-MM (6.7-IN) BORE X 1396-MM (54.9-IN) STROKE
PART OF 274-2458 CYLINDER & SEAL GP-BUCKET
AN ATTACHMENT

i02505171 SEBP4286

For full view, you need register

Parts for your 345C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	358-8521	[1]	HEAD
2.	7Y-4941 J	[1]	RING-BACKUP
3.	7Y-4956 M	[1]	LOCKNUT (M90X2-THD)
4.	506-2322 J	[1]	SEAL AS
5.	165-9291 J	[1]	SEAL-LIP TYPE
6.	358-8525	[1]	PISTON
7.	191-5605 J	[1]	RING
8.	358-8504	[1]	CYLINDER AS
8A.	351-4760	[1]	CAP AS
9.	358-8514	[1]	ROD AS
9A.	4I-1520	[1]	BUSHING
10.	259-0734 J	[1]	SEAL-U-CUP
11.	266-7957 J	[1]	SEAL-BUFFER
12.	266-7961 J	[1]	SEAL-O-RING
13.	7Y-4944	[1]	RING-RETAINING
14.	191-5604 J	[2]	RING
15.	114-0761	[1]	BUSHING
16.	7Y-4945 J	[1]	RING-BACKUP
17.	7Y-5239 M	[8]	BOLT-SOCKET HEAD (M24X3X100-MM)

			AVAILABLE REPAIR KIT(S):
	519-7961 J	[1]	KIT-SEAL (BUCKET CYLINDER)
	J		KIT MARKED J SERVICES PART(S) MARKED J
	M		METRIC PART
	R		REMANUFACTURED PART MAY BE AVAILABLE

#SEBP42860604

357-9784: CYLINDER GP-BUCKET

CYLINDER GP-BUCKET

357-9784 CYLINDER GP-BUCKET
S/N TBA1-UP; WDE1-UP; BWY1-UP
160-MM (6.3-IN) BORE X 1356-MM (53.4-IN) STROKE
PART OF 357-9783 CYLINDER & SEAL GP-BUCKET
AN ATTACHMENT

i03972810 SEBP4286

For full view, you need register

Parts for your 345C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	123-2112 M	[1]	LOCKNUT-SPECIAL (M90X2-THD)
2.	357-9785	[1]	CYLINDER AS
2A.	290-9182	[1]	BUSHING
3.	357-9794	[1]	ROD AS
3A.	087-5548	[1]	BUSHING
4.	358-8527	[1]	PISTON
5.	358-8528	[1]	HEAD
6.	087-5550 J	[1]	RING-BACKUP
7.	095-1635 J	[1]	SEAL-O-RING
8.	114-0762	[1]	BUSHING
9.	165-9291 J	[1]	SEAL-LIP TYPE
10.	185-0230 J	[2]	RING
11.	185-0231 J	[1]	RING
12.	333-8687 J	[1]	SEAL-BUFFER
13.	333-8688 J	[1]	SEAL-U-CUP
14.	7Y-4941 J	[1]	RING-BACKUP
15.	7Y-4944	[1]	RING-RETAINING
16.	7Y-5239 M	[8]	BOLT-SOCKET HEAD (M24X3X100-MM)
17.	506-2321 J	[1]	SEAL AS

			AVAILABLE REPAIR KIT(S):
	518-5136 J	[1]	KIT-SEAL (BUCKET CYLINDER)
	J		KIT MARKED J SERVICES PART(S) MARKED J
	M		METRIC PART
	R		REMANUFACTURED PART MAY BE AVAILABLE

#SEBP42860605

358-8503: CYLINDER GP-BUCKET

CYLINDER GP-BUCKET

358-8503 CYLINDER GP-BUCKET
S/N TBA1-UP; WDE1-UP; BWY1-UP
170-MM (6.7-IN) BORE X 1396-MM (55-IN) STROKE
PART OF 358-8502 CYLINDER & SEAL GP-BUCKET
AN ATTACHMENT

i04310941 SEBP4286

For full view, you need register

Parts for your 345C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	7Y-4941 J	[1]	RING-BACKUP
2.	7Y-4956 M	[1]	LOCKNUT (M90X2-THD)
3.	114-0761	[1]	BUSHING
4.	165-9291 J	[1]	SEAL-LIP TYPE
5.	358-8504	[1]	CYLINDER AS
5A.	087-5379	[1]	BUSHING
6.	358-8514	[1]	ROD AS
6A.	4I-1520	[1]	BUSHING
7.	358-8521	[1]	HEAD
8.	358-8525	[1]	PISTON
9.	095-1726 J	[1]	SEAL-O-RING
10.	191-5604 J	[2]	RING
11.	191-5605 J	[1]	RING
12.	333-8687 J	[1]	SEAL-BUFFER
13.	333-8688 J	[1]	SEAL-U-CUP
14.	7Y-4944	[1]	RING-RETAINING
15.	7Y-4945 J	[1]	RING-BACKUP
16.	7Y-5239 M	[8]	BOLT-SOCKET HEAD (M24X3X100-MM)
17.	506-2322 J	[1]	SEAL AS

			AVAILABLE REPAIR KIT(S):
	518-5135 J	[1]	KIT-SEAL (BUCKET CYLINDER)
	J		KIT MARKED J SERVICES PART(S) MARKED J
	M		METRIC PART
	R		REMANUFACTURED PART MAY BE AVAILABLE

#SEBP42860606

236-9769: CYLINDER GP-COUNTERWEIGHT

CYLINDER GP-COUNTERWEIGHT

236-9769 CYLINDER GP-COUNTERWEIGHT
S/N TBA1-UP; WDE1-UP; BWY1-UP
120.6-MM (4.74-IN) BORE X 845-MM (33.27-IN) STROKE
PART OF 225-4533 CYLINDER & SEAL GP-CTWT
AN ATTACHMENT

i02210164 SEBP4286

2369769 CYLINDER GP-COUNTERWEIGHT Parts scheme

For full view, you need register

Parts for your 345C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	236-9966	[1]	CYLINDER AS
1A.	123-3790	[1]	BUSHING
2.	5J-3488	[1]	LOCKNUT (2-1/4-12-THD)
3.	4T-8588	[1]	SEAL AS
4.	8T-8390	[1]	RING-WEAR
5.	139-3326	[1]	PISTON
6.	2J-3961	[1]	RING-BACKUP
7.	175-7903	[1]	SEAL-O-RING
8.	114-8135	[1]	HEAD
	225-3284	[1]	SEAL-WIPER
9.	236-9967	[1]	ROD AS
9A.	123-3790	[1]	BUSHING
10.	225-3284	[1]	SEAL-WIPER
11.	167-2319	[1]	SEAL-U-CUP
12.	167-2208	[1]	SEAL AS-BUFFER
13.	8C-9161	[1]	RING-WEAR

#SEBP42860607

225-4526: CYLINDER GP-STICK

CYLINDER GP-STICK

225-4526 CYLINDER GP-STICK
S/N TBA1-UP; WDE1-UP; BWY1-UP
190-MM (7.48-IN) BORE X 1758-MM (69.21-IN) STROKE
PART OF 225-4525 CYLINDER & SEAL GP-STICK
AN ATTACHMENT

i02215421 SEBP4286

For full view, you need register

Parts for your 345C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	359-7189	[1]	STOP
2.	125-1286 J	[1]	SEAL AS
3.	358-8479	[1]	HEAD
4.	200-3620 J	[1]	RING-SEAL
5.	333-8673 J	[1]	SEAL-U-CUP
6.	225-4626	[1]	CYLINDER AS
6A.	126-1956	[1]	BUSHING
7.	358-8472	[1]	ROD AS
7A.	228-5618	[1]	BUSHING
8.	225-4641	[1]	RING-RETAINING
9.	225-4642	[1]	RING
10.	087-5390	[1]	STOP
11.	087-5393	[1]	RING-RETAINING
12.	087-5397 J	[1]	RING-BACKUP
13.	114-0763	[1]	BUSHING
14.	126-1971 M	[1]	LOCKNUT-SPECIAL
15.	165-9293 J	[1]	SEAL-LIP TYPE
16.	333-8672 J	[1]	SEAL-BUFFER
17.	204-2844	[1]	PISTON
18.	204-2845 J	[2]	RING
19.	204-2846 J	[1]	RING
20.	095-0930	[2]	RING-RETAINING (EXTERNAL)
21.	095-1730 J	[1]	SEAL-O-RING
22.	126-1978 J	[1]	RING-BACKUP
23.	7X-2489 M	[10]	BOLT (M24X3X100-MM)

			AVAILABLE REPAIR KIT(S):
	331-9328 J	[1]	KIT-SEAL
	J		KIT MARKED J SERVICES PART(S) MARKED J
	M		METRIC PART
	R		REMANUFACTURED PART MAY BE AVAILABLE

#SEBP42860608

242-6839: CYLINDER GP-STICK

CYLINDER GP-STICK

242-6839 CYLINDER GP-STICK
S/N TBA1-UP; WDE1-UP; BWY1-UP
190-MM (7.48-IN) BORE X 1778-MM (70-IN) STROKE
PART OF 242-6838 CYLINDER & SEAL GP-STICK
AN ATTACHMENT

i02231885 SEBP4286

For full view, you need register

Parts for your 345C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	103-8353	[1]	STOP
2.	125-1286 J	[1]	SEAL AS
3.	126-2047	[1]	HEAD
4.	200-3620 J	[1]	RING-SEAL
5.	216-0008 J	[1]	SEAL-U-CUP
6.	283-5962	[1]	ROD AS
6A.	228-5618	[1]	BUSHING
7.	225-4641	[1]	RING-RETAINING
8.	225-4642	[1]	RING
9.	352-5651	[1]	CYLINDER AS
9A.	126-1956	[1]	BUSHING
10.	087-5390	[1]	STOP
11.	087-5393	[1]	RING-RETAINING
12.	087-5397 J	[1]	RING-BACKUP
13.	114-0763	[1]	BUSHING
14.	126-1971 M	[1]	LOCKNUT-SPECIAL
15.	165-9293 J	[1]	SEAL-LIP TYPE
16.	170-9850 J	[1]	SEAL-BUFFER
17.	204-2844	[1]	PISTON
18.	204-2845 J	[2]	RING
19.	204-2846 J	[1]	RING
20.	095-0930	[2]	RING-RETAINING (EXTERNAL)
21.	095-1730 J	[1]	SEAL-O-RING
22.	126-1978 J	[1]	RING-BACKUP
23.	7X-2489 M	[10]	BOLT (M24X3X100-MM)

			AVAILABLE REPAIR KIT(S):
	225-4646 J	[1]	KIT-SEAL (STICK CYLINDER)
	J		KIT MARKED J SERVICES PART(S) MARKED J
	M		METRIC PART
	R		REMANUFACTURED PART MAY BE AVAILABLE

#SEBP42860609

274-2453: CYLINDER GP-STICK

CYLINDER GP-STICK

274-2453 CYLINDER GP-STICK
S/N TBA1-UP; WDE1-UP; BWY1-UP
190-MM (7.5-IN) BORE X 1758-MM (69.2-IN) STROKE
PART OF 274-2452 CYLINDER & SEAL GP-STICK
AN ATTACHMENT

i02505101 SEBP4286

For full view, you need register

Parts for your 345C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	087-5390	[1]	STOP
2.	087-5397 J	[1]	RING-BACKUP
3.	103-8353	[1]	STOP
4.	114-0763	[1]	BUSHING
5.	125-1286 J	[1]	SEAL AS
6.	126-1978 J	[1]	RING-BACKUP
7.	126-2047	[1]	HEAD
8.	165-9293 J	[1]	SEAL-LIP TYPE
9.	200-3620 J	[1]	RING-SEAL
10.	204-2846 J	[1]	RING
11.	225-4626	[1]	CYLINDER AS
	126-1956	[1]	BUSHING
12.	225-4641	[1]	RING-RETAINING
13.	225-4642	[1]	RING
14.	259-0736 J	[1]	SEAL-U-CUP
15.	266-7958 J	[1]	SEAL-BUFFER
16.	266-7962 J	[1]	SEAL-O-RING
17.	225-4633	[1]	ROD AS
	228-5618	[1]	BUSHING
18.	087-5393	[1]	RING-RETAINING
19.	126-1971 M	[1]	LOCKNUT-SPECIAL
20.	204-2844	[1]	PISTON
21.	204-2845 J	[2]	RING
22.	095-0930	[2]	RING-RETAINING (EXTERNAL)
23.	7X-2489 M	[10]	BOLT (M24X3X100-MM)


			AVAILABLE REPAIR KIT(S):
	274-2461 J	[1]	KIT-SEAL (STICK CYLINDER)
	J		KIT MARKED J SERVICES PART(S) MARKED J
	M		METRIC PART
	R		REMANUFACTURED PART MAY BE AVAILABLE

Information:

HYDRAULIC SYSTEM

CYLINDER GP

Special Instruction

Instructions for Installation of Oversize Hydraulic Cylinder Seals {7555, 7562}
Instructions for Installation of Oversize Hydraulic Cylinder Seals {7555, 7562}

Installation of Double Lip Wiper Seal{7562}
Installation of Double Lip Wiper Seal{7562}

Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Repair Process {7562}

Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Honing {7562}

Procedure to Test the Position Sensor of a Hydraulic Cylinder {1439, 7562}
Procedure to Test the Position Sensor of a Hydraulic Cylinder {1439, 7562}

Service Letter-NACD

PRODUCT SUPPORT PROGRAM FOR REWORKING THE STICK CYLINDER ON CERTAIN 345B, 345C, 365C L MH, AND 385C L MH EXCAVATORS
PRODUCT SUPPORT PROGRAM FOR REWORKING THE STICK CYLINDER ON CERTAIN 345B, 345C, 365C L MH, AND 385C L MH EXCAVATORS

PRODUCT SUPPORT PROGRAM FOR REPLACING CYLINDER RODS THAT HAVE SURFACE DISCOLORATION ON CERTAIN 320D, 324D, 325D, 330D, 345C EXCAVATORS (CONTAINMENT)
PRODUCT SUPPORT PROGRAM FOR REPLACING CYLINDER RODS THAT HAVE SURFACE DISCOLORATION ON CERTAIN 320D, 324D, 325D, 330D, 345C EXCAVATORS (CONTAINMENT)

PRODUCT SUPPORT PROGRAM FOR REPLACING THE BUCKET CYLINDER ROD ON CERTAIN 330D, 336D, 336D L, 345C, 345D, AND 345D L HYDRAULIC EXCAVATORS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE BUCKET CYLINDER ROD ON CERTAIN 330D, 336D, 336D L, 345C, 345D, AND 345D L HYDRAULIC EXCAVATORS

Service Letter-Australia

Service Letter-CFEL

Service Letter-CSARL

Service Letter-Americas

Technical Information Bulletin

The Failure of the Buffer Seal that can be Caused by a Defect in the Seal Groove on All Track-Type Tractors, Wheel Loaders, Hydraulic Excavators and Backhoe Loaders that Use Cylinders that were Manufactured After 1January 2000{7562}
The Failure of the Buffer Seal that can be Caused by a Defect in the Seal Groove on All Track-Type Tractors, Wheel Loaders, Hydraulic Excavators and Backhoe Loaders that Use Cylinders that were Manufactured After 1January 2000{7562}

Discoloration of the Hydraulic Cylinder Rod on Certain Excavators{5102, 5456, 5457, 5458, 5468, 7562}
Discoloration of the Hydraulic Cylinder Rod on Certain Excavators{5102, 5456, 5457, 5458, 5468, 7562}

Surface Finishes of Cylinder Bores{7562}
Surface Finishes of Cylinder Bores{7562}

Color Change for Cylinder Rod Seals (Wiper, U-Cup and Buffer){5100, 7555, 7562}
Color Change for Cylinder Rod Seals (Wiper, U-Cup and Buffer){5100, 7555, 7562}

Low Cycle Cylinder Rod Breaks on Certain Excavators and Mobile Hydraulic Power Units{7562}
Low Cycle Cylinder Rod Breaks on Certain Excavators and Mobile Hydraulic Power Units{7562}

Specifications

Boom Cylinder Lines - Left Hand
345C Excavator Machine System Specifications

Boom Cylinder Lines - Right Hand
345C Excavator Machine System Specifications

Boom Cylinder
345C Excavator Machine System Specifications

Stick Cylinder
345C Excavator Machine System Specifications

Bucket Cylinder
345C Excavator Machine System Specifications

Boom Lines
345C Excavator Machine System Specifications

Bucket Cylinder
345C Excavator Machine System Specifications

Tool Operating Manual

Procedures for Using the 232-4686 Cylinder Washer Tank Group European Union Compliant{0374, 0599, 0680, 0738}
Procedures for Using the 232-4686 Cylinder Washer Tank Group European Union Compliant{0374, 0599, 0680, 0738}

1U-9001 and 1U-9002 Automatic Hone Tooling{0599, 0677, 0738, 7562, 7562}
1U-9001 and 1U-9002 Automatic Hone Tooling{0599, 0677, 0738, 7562, 7562}

Model HCS-40 Hydraulic Cylinder Servicer{0374, 0599, 0700, 0738, 7562}
Model HCS-40 Hydraulic Cylinder Servicer{0374, 0599, 0700, 0738, 7562}

4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}

Using the 265-4177, 265-4209 Service Tool Groups to Install Sensors in Position-Sensing Hydraulic Cylinders{0599, 0709, 0738, 1439, 7562, 7562}
Using the 265-4177, 265-4209 Service Tool Groups to Install Sensors in Position-Sensing Hydraulic Cylinders{0599, 0709, 0738, 1439, 7562, 7562}

Using the 9U-7868 and 9U-7869 Spanner Wrench to Remove and install Threaded Gland Cylinder Heads{0374, 0599, 0602, 0738}
Using the 9U-7868 and 9U-7869 Spanner Wrench to Remove and install Threaded Gland Cylinder Heads{0374, 0599, 0602, 0738}

Procedures for Using the 120-9143 Cylinder Washer Tank Group {0374, 0602, 0680, 0738}
Procedures for Using the 120-9143 Cylinder Washer Tank Group {0374, 0602, 0680, 0738}

Service Letter-China

Service Letter-Asia

Systems Operation

Cylinders (Boom, Stick and Bucket)
345C Excavator Hydraulic System

Reuse And Salvage Guidelines

Testing Hydraulic Cylinders Using the <NOBR>188-3926</NOBR> Caterpillar Cylinder Tester and the <NOBR> 9U-6803</NOBR> Caterpillar Cylinder Tester {0784, 7562}
Testing Hydraulic Cylinders Using the 188-3926 Caterpillar Cylinder Tester and the 9U-6803 Caterpillar Cylinder Tester {0784, 7562}

Reuse Guideline for Hydraulic Cylinder Position Sensor {5574, 5736}
Reuse Guideline for Hydraulic Cylinder Position Sensor {5574, 5736}

Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Repair Process {7562}

Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Honing {7562}

Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}

Inspection and Salvage of Hydraulic Cylinder Components {7562}
Inspection and Salvage of Hydraulic Cylinder Components {7562}

Measuring Bores and Installing Seals in Standard and Oversized Hydraulic Cylinders {5100, 7562}
Measuring Bores and Installing Seals in Standard and Oversized Hydraulic Cylinders {5100, 7562}

Machining the O-ring Groove into the Face of Oversized Bolted Head Hydraulic Cylinders {0677, 5100, 7562}
Machining the O-ring Groove into the Face of Oversized Bolted Head Hydraulic Cylinders {0677, 5100, 7562}

HVOF Identification and Polishing (Superfinishing){0674, 0679, 1000, 7000, 7562}
HVOF Identification and Polishing (Superfinishing){0674, 0679, 1000, 7000, 7562}

Thermal Spray Procedures for Hydraulic Cylinder Rods{0679, 7562, 7562}
Thermal Spray Procedures for Hydraulic Cylinder Rods{0679, 7562, 7562}

Contamination Control Guidelines

Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Honing {7562}

Applied Failure Analysis

Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}

Service Letter-APD

Testing and Adjusting

Cylinder Speed - Check
345C Excavator Hydraulic System

Cylinder Drift - Check - Empty Bucket
345C Excavator Hydraulic System

Cylinder Drift - Check - Loaded Bucket
345C Excavator Hydraulic System

Relief Valve (Counterweight Cylinder) - Test and Adjust
345C Excavator Hydraulic System

Bench Test Procedures

Disassembly and Assembly

Boom Cylinder - Remove and Install
345C Excavator and 345C MHPU
Mobile Hydraulic Power Unit Machine Systems

Counterweight Cylinder - Remove and Install
345C Excavator and 345C MHPU
Mobile Hydraulic Power Unit Machine Systems

Stick Cylinder - Remove and Install
345C Excavator and 345C MHPU
Mobile Hydraulic Power Unit Machine Systems

Bucket Cylinder - Remove and Install
345C Excavator and 345C MHPU
Mobile Hydraulic Power Unit Machine Systems

Service Magazine

Procedure Now Available to Test the Position Sensor of a Hydraulic Cylinder {1439, 7562}
2012/10/04

New Hydraulic Cylinders for the Stick Improve the Reliability {5458}
2010/01/11

Compatible Puller Stud and Hydraulic Cylinder Capacity Chart {0599, 7000, 7562}
Compatible Puller Stud and Hydraulic Cylinder Capacity Chart {0599, 7000, 7562}

Correct Ring Orientation Provides Smooth Hydraulic Cylinder Operation {5456, 5458}
2009/03/16

Cylinder Rod Seals Have Been Improved for Certain Excavators {5457}
2009/07/06

A Rework Procedure Improves the Seal Assembly Performance in Hydraulic Cylinders on Cat Products {7562}
2010/04/30

Service Limit of the Bushings At the Front Linkages Are Now Available on Certain Excavators {5456, 5457, 5458, 6060, 6301, 6302, 6460, 6501, 6502, 6516, 6521, 6535, 6536}
Service Limit of the Bushings At the Front Linkages Are Now Available on Certain Excavators {5456, 5457, 5458, 6060, 6301, 6302, 6460, 6501, 6502, 6516, 6521, 6535, 6536}

Improved Seal Kits are Now Used on Certain Excavators {5456, 5457, 5458}
2011/11/18

Caterpillar Parts SIS Catalog 345C :

389-1041 CYLINDER GP-BOOM

266-8087 CYLINDER GP-BOOM

225-4523 CYLINDER GP-BOOM

274-2466 CYLINDER AR-BOOM

274-2465 CYLINDER AR-BOOM

518-0753 CYLINDER & SEAL GP-STICK

358-8460 CYLINDER & SEAL GP-STICK

225-4532 CYLINDER GP-BUCKET

274-2456 CYLINDER GP-BUCKET

274-2459 CYLINDER GP-BUCKET

357-9784 CYLINDER GP-BUCKET

358-8503 CYLINDER GP-BUCKET

236-9769 CYLINDER GP-COUNTERWEIGHT

225-4526 CYLINDER GP-STICK

242-6839 CYLINDER GP-STICK

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Caterpillar 345C
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