168-6943 CYLINDER GP-LIFT -LOGGING, LH S/N BXY1-UP 235-MM (9.25-IN) BORE X 907-MM (35.70-IN) STROKE PART OF 174-4682 LINES GP-LIFT CYLINDER 988H

HYDRAULIC SYSTEM

CYLINDER GP

0. 168-6943 CYLINDER G
1. 309-9546 CYLINDER G
2. 309-9547 CYLINDER G

ELECTRICAL AND STARTING SYSTEM

SENSOR GP

3. 261-1516 CYLINDER G
4. 261-1516 CYLINDER G

HYDRAULIC SYSTEM

CYLINDER GP

5. 191-3468 CYLINDER G
6. 212-3248 CYLINDER G
7. 231-1955 CYLINDER G
8. 271-6441 CYLINDER G
9. 309-9545 CYLINDER G
0. INFORMATION

WHEEL LOADER 988H WHEEL LOADER BXY
CUSTOM PRODUCT SUPPORT LITERATURE FOR THE 988H WHEEL LOADER BXY00001-UP (MACHINE) SEBC1454 988H BXY (2004)

HYDRAULIC SYSTEM

CYLINDER GP

230-7913 CYLINDER & SENSOR GP-TILT

168-6942 CYLINDER GP-LIFT

168-6943 CYLINDER GP-LIFT

309-9546 CYLINDER GP-LIFT

309-9547 CYLINDER GP-LIFT

261-1516 CYLINDER GP-LIFT & TILT

#SEBC14540330

168-6943: CYLINDER GP-LIFT

CYLINDER GP-LIFT

168-6943 CYLINDER GP-LIFT -LOGGING, LH
S/N BXY1-UP
235-MM (9.25-IN) BORE X 907-MM (35.70-IN) STROKE
PART OF 174-4682 LINES GP-LIFT CYLINDER

i01183899 SEBC1454

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Parts for your 988H WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	170-2484	[1]	CYLINDER AS
1A.	152-3750	[1]	BEARING
2.	7J-9250	[1]	LOCKNUT (3-1/4X12-THD)
3.	1J-5281	[1]	RING-WEAR
4.	4T-4143	[1]	SEAL AS
5.	170-2482	[1]	PISTON
6.	1U-3174	[1]	SEAL-O-RING
7.	158-3032	[1]	RING-BACKUP
8.	8T-8383	[1]	SEAL-HEAD
9.	303-2002	[1]	HEAD
10.	135-7816	[1]	ROD AS
10A.	152-3750	[1]	BEARING
11.	225-3290	[1]	SEAL-WIPER
12.	167-2339	[1]	SEAL-U-CUP
13.	167-2222	[1]	SEAL AS-BUFFER
14.	8T-3331	[1]	RING-WEAR
15.	8T-0668 M	[11]	BOLT (M24X3X110-MM)
16.	6V-8237	[11]	WASHER (26X44X4-MM THK)
	M		METRIC PART
	R		REMANUFACTURED PART MAY BE AVAILABLE

#SEBC14540331

309-9546: CYLINDER GP-LIFT

CYLINDER GP-LIFT

309-9546 CYLINDER GP-LIFT -RH
S/N BXY1-UP
234.95-MM BORE X 911-MM STROKE
PART OF 2Q-8750 HANDLER AR-BLOCK, 174-4682 LINES GP-LIFT CYLINDER, 2Q-8748 LOGGING AR, 2Q-8747 LOGGING AR-MILLYARD

i03846890 SEBC1454

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Parts for your 988H WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	309-9550	[1]	CYLINDER AS
2.	7J-9250	[1]	LOCKNUT (3-1/4X12-THD)
3.	1J-5281	[1]	RING-WEAR
4.	4T-4143	[1]	SEAL AS
5.	170-2482	[1]	PISTON
6.	1U-3174	[1]	SEAL-O-RING
7.	158-3032	[1]	RING-BACKUP
8.	8T-8383	[1]	SEAL-HEAD
9.	303-2002	[1]	HEAD
10.	448-8156	[1]	ROD AS
	152-3750	[1]	BEARING
11.	225-3290	[1]	SEAL-WIPER
12.	167-2339	[1]	SEAL-U-CUP
13.	167-2222	[1]	SEAL AS-BUFFER
14.	8T-3331	[1]	RING-WEAR
15.	8T-0668 M	[11]	BOLT (M24X3X110-MM)
16.	6V-8237	[11]	WASHER (26X44X4-MM THK)
	M		METRIC PART
	R		REMANUFACTURED PART MAY BE AVAILABLE

#SEBC14540332

309-9547: CYLINDER GP-LIFT

CYLINDER GP-LIFT

309-9547 CYLINDER GP-LIFT -LH
S/N BXY1-UP
234.95-MM BORE X 911-MM STROKE
PART OF 2Q-8750 HANDLER AR-BLOCK, 174-4682 LINES GP-LIFT CYLINDER, 2Q-8748 LOGGING AR, 2Q-8747 LOGGING AR-MILLYARD

i03846990 SEBC1454

For full view, you need register

Parts for your 988H WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	309-9551	[1]	CYLINDER AS
	152-3750	[1]	BEARING
2.	7J-9250	[1]	LOCKNUT (3-1/4X12-THD)
3.	1J-5281	[1]	RING-WEAR
4.	4T-4143	[1]	SEAL AS
5.	170-2482	[1]	PISTON
6.	1U-3174	[1]	SEAL-O-RING
7.	158-3032	[1]	RING-BACKUP
8.	8T-8383	[1]	SEAL-HEAD
9.	303-2002	[1]	HEAD
10.	448-8156	[1]	ROD AS
	152-3750	[1]	BEARING
11.	225-3290	[1]	SEAL-WIPER
12.	167-2339	[1]	SEAL-U-CUP
13.	167-2222	[1]	SEAL AS-BUFFER
14.	8T-3331	[1]	RING-WEAR
15.	8T-0668 M	[11]	BOLT (M24X3X110-MM)
16.	6V-8237	[11]	WASHER (26X44X4-MM THK)
	M		METRIC PART
	R		REMANUFACTURED PART MAY BE AVAILABLE

#SEBC14540333

261-1516: CYLINDER GP-LIFT & TILT

CYLINDER GP-LIFT & TILT

261-1516 CYLINDER GP-LIFT & TILT
S/N BXY1-UP
PART OF 2Q-8633 STEEL MILL AR
Type 1

i02418740 SEBC1454

2611516 CYLINDER GP-LIFT & TILT Parts scheme

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Parts for your 988H WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	118-9902	[1]	SPACER (12X20X43-MM THK)
2.	203-5443	[1]	BRACKET AS
3.	227-3316	[1]	BRACKET
4.	230-7913 Y	[1]	CYLINDER & SENSOR GP-TILT
5.	230-7914 Y	[1]	CYLINDER & SENSOR GP-LIFT (RH)
6.	261-1517	[1]	HARNESS AS-SENSOR (LIFT POSITION, TILT POSITION)
7.	115-3071	[1]	CLIP AS-CONNECTING (6-PIN)
8.	5P-9297	[5]	CLIP
9.	6D-4246	[12]	CLIP (LOOP)
10.	8T-4121	[13]	WASHER-HARD (11X21X2.5-MM THK)
11.	8T-4133 M	[1]	NUT (M10X1.5-THD)
12.	8T-4137 M	[11]	BOLT (M10X1.5X20-MM)
13.	8T-5005 M	[1]	BOLT (M10X1.5X70-MM)
14.	193-6911 E		INSULATION (196.7-CM)
14A.	193-6911 E		INSULATION (187.4-CM)
	E		ORDER BY THE CENTIMETER
	M		METRIC PART
	Y		SEPARATE ILLUSTRATION

#SEBC14540334

261-1516: CYLINDER GP-LIFT & TILT

CYLINDER GP-LIFT & TILT

261-1516 CYLINDER GP-LIFT & TILT
S/N BXY1-UP
PART OF 2Q-8633 STEEL MILL AR
Type 2

i03370722 SEBC1454

For full view, you need register

Parts for your 988H WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	203-5443	[1]	BRACKET AS
2.	227-3316	[1]	BRACKET
3.	230-7913 Y	[1]	CYLINDER & SENSOR GP-TILT
4.	230-7914 Y	[1]	CYLINDER & SENSOR GP-LIFT (RH)
5.	261-1517	[1]	HARNESS AS-SENSOR (LIFT POSITION, TILT POSITION)
6.	5P-9297	[5]	CLIP
7.	6D-4246	[12]	CLIP (LOOP)
8.	8T-4121 C	[9]	WASHER-HARD (11X21X2.5-MM THK)
9.	8T-4133 M	[1]	NUT (M10X1.5-THD)
10.	8T-4137 CM	[8]	BOLT (M10X1.5X20-MM)
11.	193-6911 CE		INSULATION (185.4-CM)
11A.	193-6911 E		INSULATION (187.4-CM)
	C		CHANGE FROM PREVIOUS TYPE
	E		ORDER BY THE CENTIMETER
	M		METRIC PART
	Y		SEPARATE ILLUSTRATION

#SEBC14540335

191-3468: CYLINDER GP-TILT

CYLINDER GP-TILT

191-3468 CYLINDER GP-TILT
S/N BXY1-UP
235-MM BORE X 1556-MM STROKE
PART OF 156-4801 LINES GP-TILT CYLINDER

i02402604 SEBC1454

For full view, you need register

Parts for your 988H WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	170-2487	[1]	PISTON
2.	212-3251	[1]	ROD AS
	152-3739	[2]	BUSHING
3.	191-3470	[1]	CYLINDER AS
	152-3739	[2]	BUSHING
4.	196-2331	[1]	HEAD
5.	158-3032 J	[1]	RING-BACKUP
6.	167-2220 J	[1]	SEAL AS-BUFFER
7.	167-2336 J	[1]	SEAL-U-CUP
8.	225-3289 J	[1]	SEAL-WIPER
9.	192-1435 J	[1]	SEAL AS
10.	9X-3579 J	[1]	RING-WEAR
11.	1J-5281 J	[1]	RING-WEAR
12.	1U-3174 J	[1]	SEAL-O-RING
13.	6V-8237	[9]	WASHER (26X44X4-MM THK)
14.	7J-9250	[1]	LOCKNUT (3-1/4X12-THD)
15.	8T-0666 M	[7]	BOLT (M24X3X90-MM)
16.	8T-0669 M	[2]	BOLT (M24X3X130-MM)

			AVAILABLE REPAIR KIT(S):
	261-2991 J	[1]	KIT-SEAL
	J		PARTS MARKED J INCLUDED IN KIT MARKED J
	M		METRIC PART

#SEBC14540336

212-3248: CYLINDER GP-TILT

CYLINDER GP-TILT

212-3248 CYLINDER GP-TILT -LOW LIFT MACHINES
S/N BXY1-UP
220-MM BORE X 1556-MM STROKE. CUSTOM
PART OF 189-7794, 324-8869 LINES GP-TILT CYLINDER

i01945942 SEBC1454

For full view, you need register

Parts for your 988H WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	136-1082	[1]	PISTON
2.	196-2332	[1]	HEAD
3.	212-3249	[1]	CYLINDER AS
	152-3739	[2]	BUSHING
4.	212-3251	[1]	ROD AS
	152-3739	[2]	BUSHING
5.	108-0122 J	[1]	RING-BACKUP
6.	167-2220 J	[1]	SEAL AS-BUFFER
7.	167-2440 J	[1]	SEAL AS
8.	192-1425 J	[1]	SEAL AS
9.	225-3289 J	[1]	SEAL-WIPER
10.	6E-0496 J	[1]	RING-WEAR
11.	6V-8237	[9]	WASHER (26X44X4-MM THK)
12.	7J-9250	[1]	LOCKNUT (3-1/4X12-THD)
13.	8T-0666 M	[7]	BOLT (M24X3X90-MM)
14.	8T-0669 M	[2]	BOLT (M24X3X130-MM)
15.	9M-5894 J	[1]	SEAL-O-RING
16.	9X-3579 J	[1]	RING-WEAR

			AVAILABLE REPAIR KIT(S):
	229-5546 J	[1]	KIT-GASKET
	J		KIT MARKED J SERVICES PART(S) MARKED J
	M		METRIC PART

#SEBC14540337

231-1955: CYLINDER GP-TILT

CYLINDER GP-TILT

231-1955 CYLINDER GP-TILT
S/N BXY1-UP
220-MM (8.7-IN) BORE X 1770-MM (69.7-IN) STROKE
PART OF 2Q-8682 CONVERSION GP-BUCKET CONTROL

i02103079 SEBC1454

For full view, you need register

Parts for your 988H WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	136-1082	[1]	PISTON
2.	448-8154	[1]	ROD AS
2A.	152-3739	[2]	BUSHING
3.	231-1957	[1]	CYLINDER AS
3A.	152-3739	[2]	BUSHING
4.	231-1960	[1]	HEAD
5.	108-0122 J	[1]	RING-BACKUP
6.	335-8964 J	[1]	SEAL AS-BUFFER
7.	341-3191 J	[1]	SEAL-U-CUP
8.	192-1425 J	[1]	SEAL AS
9.	335-8966 J	[1]	SEAL-WIPER
10.	6E-0496 J	[1]	RING-WEAR
11.	6V-8237	[12]	WASHER (26X44X4-MM THK)
12.	7J-9250	[1]	LOCKNUT (3-1/4X12-THD)
13.	7X-2577 M	[10]	BOLT (M24X3X90-MM)
14.	8T-0669 M	[2]	BOLT (M24X3X130-MM)
15.	9M-5894 J	[1]	SEAL-O-RING
16.	9X-3579 J	[1]	RING-WEAR

			AVAILABLE REPAIR KIT(S):
	229-5546 J	[1]	KIT-GASKET (HYDRAULIC CYLINDER)
	J		KIT MARKED J INCLUDES PART(S) MARKED J
	M		METRIC PART
	R		REMANUFACTURED PART MAY BE AVAILABLE

#SEBC14540338

271-6441: CYLINDER GP-TILT

CYLINDER GP-TILT

271-6441 CYLINDER GP-TILT
S/N BXY1-UP
220-MM (8.7-IN) BORE X 1621-MM (63.9-IN) STROKE
PART OF 2Q-8719 CONVERSION AR-MACHINE

i02457362 SEBC1454

For full view, you need register

Parts for your 988H WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	450-6049	[1]	HEAD
2.	381-4544	[1]	PISTON
3.	448-8153	[1]	ROD AS
3A.	152-3739		BUSHING
4.	271-6442	[1]	CYLINDER AS
4A.	152-3739	[2]	BUSHING
5.	108-0122 J	[1]	RING-BACKUP
6.	335-8964	[1]	SEAL AS-BUFFER
7.	444-2612	[1]	SEAL-U-CUP
8.	192-1425 J	[1]	SEAL AS
9.	444-2613	[1]	SEAL-WIPER
10.	6E-0496 J	[1]	RING-WEAR
11.	6V-8237	[12]	WASHER (26X44X4-MM THK)
12.	7J-9250	[1]	LOCKNUT (3-1/4X12-THD)
13.	8T-0666 M	[10]	BOLT (M24X3X90-MM)
14.	8T-0669 M	[2]	BOLT (M24X3X130-MM)
15.	9M-5894 J	[1]	SEAL-O-RING
16.	444-2610	[1]	RING-WEAR
17.	191-5643	[1]	RING-RETAINING
18.	474-6700	[1]	RING-BACKUP

			AVAILABLE REPAIR KIT(S):
	229-5546 J	[1]	KIT-GASKET (HYDRAULIC CYLINDER)
			(ALSO INCLUDES RINGS & SEALS)
			(FOR USE WITH REHS1392 FOUND IN SISWEB)
	J		KIT MARKED J INCLUDES PART(S) MARKED J
	M		METRIC PART

#SEBC14540339

309-9545: CYLINDER GP-TILT

CYLINDER GP-TILT

309-9545 CYLINDER GP-TILT
S/N BXY1-UP
235-MM BORE X 1556-MM STROKE
PART OF 156-4801, 324-8866 LINES GP-TILT CYLINDER

i03786630 SEBC1454

For full view, you need register

Parts for your 988H WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	170-2487	[1]	PISTON
2.	196-2331	[1]	HEAD
3.	448-8155	[1]	ROD AS
	152-3739	[2]	BUSHING
4.	309-9548	[1]	CYLINDER AS
	152-3739	[2]	BUSHING
5.	158-3032 J	[1]	RING-BACKUP
6.	335-8964 J	[1]	SEAL AS-BUFFER
7.	341-3191 J	[1]	SEAL-U-CUP
8.	192-1435 J	[1]	SEAL AS
9.	1J-5281 J	[1]	RING-WEAR
10.	1U-3174 J	[1]	SEAL-O-RING
11.	225-3289 J	[1]	SEAL-WIPER
12.	6V-8237	[9]	WASHER (26X44X4-MM THK)
13.	7J-9250	[1]	LOCKNUT (3-1/4X12-THD)
14.	8T-0666 M	[7]	BOLT (M24X3X90-MM)
15.	8T-0669 M	[2]	BOLT (M24X3X130-MM)
16.	9X-3579 J	[1]	RING-WEAR

			AVAILABLE REPAIR KIT(S):
	261-2991 J	[1]	KIT-SEAL (HYDRAULIC CYLINDER)
	J		KIT MARKED J SERVICES PART(S) MARKED J
	M		METRIC PART

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}

Installation of Regeneration Circuit for Tilt Cylinder for Machine with 4.25 Meter Boom{1408, 5057, 5104, 512R}
Installation of Regeneration Circuit for Tilt Cylinder for Machine with 4.25 Meter Boom{1408, 5057, 5104, 512R}

Process for Removal and Installation of the Position Sensor in the Lift Cylinder{5102, 5736}
Process for Removal and Installation of the Position Sensor in the Lift Cylinder{5102, 5736}

Installation of Regeneration Circuit for Tilt Cylinder for Machine with 3.88 Meter Boom{1408, 5057, 5104, 512R}
Installation of Regeneration Circuit for Tilt Cylinder for Machine with 3.88 Meter Boom{1408, 5057, 5104, 512R}

Installation of Regeneration Circuit for Tilt Cylinder for Machine with 3.6 Meter Boom{1408, 5057, 5104, 512R}
Installation of Regeneration Circuit for Tilt Cylinder for Machine with 3.6 Meter Boom{1408, 5057, 5104, 512R}

Installation of Regeneration Circuit for 988G and 988H Wheel Loader Machines{1408, 5057, 5104, 512R}
Installation of Regeneration Circuit for 988G and 988H Wheel Loader Machines{1408, 5057, 5104, 512R}

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 IMPROVEMENT PROGRAM FOR INSTALLING A NEW TILT CYLINDER HOSE ASSEMBLY WITH IMPROVED ROUTING ON CERTAIN 988G AND 988H WHEEL LOADERS
PRODUCT IMPROVEMENT PROGRAM FOR INSTALLING A NEW TILT CYLINDER HOSE ASSEMBLY WITH IMPROVED ROUTING ON CERTAIN 988G AND 988H WHEEL LOADERS

PRODUCT IMPROVEMENT PROGRAM FOR REPLACING TILT CYLINDER HOSES AND TUBES ON CERTAIN 988G AND 988H WHEEL LOADERS EQUIPPED WITH THE MID-MOUNT REGEN SYSTEM
PRODUCT IMPROVEMENT PROGRAM FOR REPLACING TILT CYLINDER HOSES AND TUBES ON CERTAIN 988G AND 988H WHEEL LOADERS EQUIPPED WITH THE MID-MOUNT REGEN SYSTEM

PRODUCT SUPPORT PROGRAM FOR REPLACING THE TILT CYLINDER PISTON ON CERTAIN 988H WHEEL LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE TILT CYLINDER PISTON ON CERTAIN 988H WHEEL LOADERS

PRODUCT IMPROVEMENT PROGRAM FOR INSTALLING TILT CYLINDER HOSE GUARDS ON CERTAIN 988G AND 988H WHEEL LOADERS
PRODUCT IMPROVEMENT PROGRAM FOR INSTALLING TILT CYLINDER HOSE GUARDS ON CERTAIN 988G AND 988H WHEEL LOADERS

Service Letter-Australia

PRODUCT SUPPORT PROGRAM FOR REPLACING THE TILT CYLINDER PISTON ON CERTAIN 988H WHEEL LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE TILT CYLINDER PISTON ON CERTAIN 988H WHEEL LOADERS

Service Letter-CFEL

PRODUCT SUPPORT PROGRAM FOR REPLACING THE TILT CYLINDER PISTON ON CERTAIN 988H WHEEL LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE TILT CYLINDER PISTON ON CERTAIN 988H WHEEL LOADERS

Service Letter-CSARL

PRODUCT SUPPORT PROGRAM FOR REPLACING THE TILT CYLINDER PISTON ON CERTAIN 988H WHEEL LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE TILT CYLINDER PISTON ON CERTAIN 988H WHEEL LOADERS

Service Letter-Americas

PRODUCT SUPPORT PROGRAM FOR REPLACING THE TILT CYLINDER PISTON ON CERTAIN 988H WHEEL LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE TILT CYLINDER PISTON ON CERTAIN 988H WHEEL LOADERS

Technical Information Bulletin

Voids in the Tilt Cylinder Are Present During Backdragging Operation{5104}
Voids in the Tilt Cylinder Are Present During Backdragging Operation{5104}

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}

Compatibility of Tilt Cylinder Rod Seals{5104, 7555}
Compatibility of Tilt Cylinder Rod Seals{5104, 7555}

Specifications

Tilt Cylinder
988H Wheel Loader Electrohydraulic System

Lift Cylinder
988H Wheel Loader Electrohydraulic System

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

PRODUCT SUPPORT PROGRAM FOR REPLACING THE TILT CYLINDER PISTON ON CERTAIN 988H WHEEL LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE TILT CYLINDER PISTON ON CERTAIN 988H WHEEL LOADERS

Service Letter-Asia

PRODUCT SUPPORT PROGRAM FOR REPLACING THE TILT CYLINDER PISTON ON CERTAIN 988H WHEEL LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE TILT CYLINDER PISTON ON CERTAIN 988H WHEEL LOADERS

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

PRODUCT SUPPORT PROGRAM FOR REPLACING THE TILT CYLINDER PISTON ON CERTAIN 988H WHEEL LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE TILT CYLINDER PISTON ON CERTAIN 988H WHEEL LOADERS

Testing and Adjusting

Lift and Tilt Cylinder Drift - Check
988H Wheel Loader Electrohydraulic System

Lift Cylinder - Isolation and Drift Check
988H Wheel Loader Electrohydraulic System

Tilt Cylinder - Isolation and Drift Check
988H Wheel Loader Electrohydraulic System

Implement Cycle Time - Check
988H Wheel Loader Electrohydraulic System

Implement Hydraulic Service Mode
988H Wheel Loader Electrohydraulic System

Position Sensor for the Lift Linkage (Operator Monitor) - Calibrate
988H Wheel Loader Electrohydraulic System

Position Sensor for the Lift Linkage (Electronic Technician) - Calibrate
988H Wheel Loader Electrohydraulic System

Position Sensor for the Tilt Cylinder (Electronic Technician) - Calibrate
988H Wheel Loader Electrohydraulic System

Position Sensor for the Lift Cylinder (Electronic Technician) - Calibrate
988H Wheel Loader Electrohydraulic System

Tilt Cylinder - Isolation and Drift Check
988H Wheel Loader Electrohydraulic System

Position Sensor for the Lift Linkage (Electronic Technician) - Calibrate
988H Wheel Loader Electrohydraulic System

Bench Test Procedures

Disassembly and Assembly

Lift Cylinder (Left Side) - Remove and Install
988H Wheel Loader Machine Systems

Lift Cylinder (Right Side) - Remove and Install
988H Wheel Loader Machine Systems

Tilt Cylinder - Remove
988H Wheel Loader Machine Systems

Tilt Cylinder - Install
988H Wheel Loader Machine Systems

Service Magazine

Improved routing for the grease line on the tilt cylinder {5104, 7510}
2008/01/28

Procedure Now Available to Test the Position Sensor of a Hydraulic Cylinder {1439, 7562}
2013/02/28

A New Regeneration Valve Improves Performance of the Tilt Function {5050, 5051, 5104, 512R}
2008/12/08

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

Improved Position Sensors Are Now Available {1439, 7562}
2009/05/25

A Tilt Regeneration Kit Is Now Available for the 988G and 988H Machines {1408, 5057, 5104, 512R}
2009/05/04

New Troubleshooting Information For Internal Cylinder Position Sensors Is Now Available {1439, 7562}
2009/09/14

Improved Implement Software for the Tilt Cylinder Seal is Now Available for Certain 988G and 988H Wheel Loaders {5104, 5112, 5701, 7610, 7620}
2010/06/08

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

A New Tilt Cylinder Piston Is Now Available For Certain Wheel Loaders {5104}
2012/05/03

Improved Lift Cylinder Piston Seal Orientation and Air Evacuation Procedure Now Used for Certain Wheel Loaders {5102}
2013/04/30

New Head and Rod Seals Are Now Available for 988G and 988H Large Wheel Loader Tilt Cylinders {5104, 7555}
2015/07/15

Caterpillar Parts SIS Catalog 988H :

168-6942 CYLINDER GP-LIFT

230-7913 CYLINDER & SENSOR GP-TILT

230-7914 CYLINDER & SENSOR GP-LIFT

329-9286 CONVERSION GP-HYDRAULIC LINES

287-3680 CONVERSION GP-HYDRAULIC LINES

227-3317 CONVERSION GP-HYDRAULIC LINES

309-9546 CYLINDER GP-LIFT

309-9547 CYLINDER GP-LIFT

261-1516 CYLINDER GP-LIFT & TILT

191-3468 CYLINDER GP-TILT

212-3248 CYLINDER GP-TILT

231-1955 CYLINDER GP-TILT

271-6441 CYLINDER GP-TILT

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