168-6942 CYLINDER GP-LIFT -LOGGING, RH S/N BNH1-UP; 2TW1-UP 235-MM BORE X 907-MM STROKE PART OF 174-4682 LINES GP-LIFT CYLINDER 988G

HYDRAULIC SYSTEM

CYLINDER GP

0. 168-6942 CYLINDER G
1. 168-6943 CYLINDER G
2. 230-9366 CYLINDER G
3. 230-9367 CYLINDER G
4. 230-9368 CYLINDER G
5. 309-9546 CYLINDER G
6. 309-9547 CYLINDER G

ELECTRICAL AND STARTING SYSTEM

SENSOR GP

7. 228-7908 CYLINDER G

HYDRAULIC SYSTEM

CYLINDER GP

8. 168-6944 CYLINDER G
9. 191-3468 CYLINDER G
0. INFORMATION

WHEEL LOADER 988G WHEEL LOADER 2TW
Custom Product Support Literature for the 988G Wheel Loader 2TW00001-UP (MACHINE) SEBC1318 988G 2TW (1999)

HYDRAULIC SYSTEM

CYLINDER GP

230-7913 CYLINDER & SENSOR GP-TILT

168-6942 CYLINDER GP-LIFT

168-6943 CYLINDER GP-LIFT

230-9366 CYLINDER GP-LIFT

230-9367 CYLINDER GP-LIFT

#SEBC13180260

168-6942: CYLINDER GP-LIFT

CYLINDER GP-LIFT

168-6942 CYLINDER GP-LIFT -LOGGING, RH
S/N BNH1-UP; 2TW1-UP
235-MM BORE X 907-MM STROKE
PART OF 174-4682 LINES GP-LIFT CYLINDER

i01183949 SEBC1318

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Parts for your 988G WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	170-2477	[1]	CYLINDER AS (RH)
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
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

#SEBC13180261

168-6943: CYLINDER GP-LIFT

CYLINDER GP-LIFT

168-6943 CYLINDER GP-LIFT -LOGGING, LH
S/N BNH1-UP; 2TW1-UP
235-MM (9.25-IN) BORE X 907-MM (35.70-IN) STROKE
PART OF 174-4682 LINES GP-LIFT CYLINDER

i01183899 SEBC1318

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Parts for your 988G 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

#SEBC13180262

230-9366: CYLINDER GP-LIFT

CYLINDER GP-LIFT

230-9366 CYLINDER GP-LIFT -HIGH
S/N BNH1-UP
WATER GLYCOL
PART OF 2Q-8041 HYDRAULIC AR

i01945719 SEBC1318

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Parts for your 988G WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	9J-1337	[1]	SEAL-LIP TYPE
2.	9J-1340	[1]	SEAL AS
3.	136-1082	[1]	PISTON
4.	152-1645	[1]	CYLINDER AS
	6V-5224 M	[6]	BOLT (M16X2X25-MM)
	7J-8958	[3]	COVER
	7J-9262	[2]	GASKET
	8T-0661 M	[4]	BOLT (M24X3X40-MM)
	152-3739	[2]	BUSHING
5.	152-1646	[1]	ROD AS
	152-3739	[2]	BUSHING
6.	196-2332	[1]	HEAD
7.	218-4882	[1]	SEAL AS
8.	108-0122	[1]	RING-BACKUP
9.	192-1425	[1]	SEAL AS
10.	6E-0496	[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	[1]	SEAL-O-RING
16.	9X-3579	[1]	RING-WEAR
	M		METRIC PART
	R		REMANUFACTURED PART MAY BE AVAILABLE

#SEBC13180263

230-9367: CYLINDER GP-LIFT

CYLINDER GP-LIFT

230-9367 CYLINDER GP-LIFT -RH
S/N BNH1-UP
WATER GLYCOL
PART OF 2Q-8041 HYDRAULIC AR

i01945721 SEBC1318

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Parts for your 988G WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	173-8615	[1]	CYLINDER AS
	152-3750	[1]	BEARING
2.	7J-9250	[1]	LOCKNUT (3-1/4X12-THD)
3.	6E-0496	[1]	RING-WEAR
4.	219-1438	[1]	SEAL AS
5.	173-8617	[1]	PISTON
6.	9M-5894	[1]	SEAL-O-RING
7.	108-0122	[1]	RING-BACKUP
8.	173-8614	[1]	HEAD
	225-3290	[1]	SEAL-WIPER
9.	135-7816	[1]	ROD AS
	152-3750	[1]	BEARING
10.	9J-1681	[1]	SEAL AS
11.	9J-1684	[1]	SEAL AS
12.	218-4883	[1]	SEAL AS
13.	8T-3331	[1]	RING-WEAR
14.	8T-0668 M	[11]	BOLT (M24X3X110-MM)
15.	6V-8237	[11]	WASHER (26X44X4-MM THK)
	M		METRIC PART
	R		REMANUFACTURED PART MAY BE AVAILABLE

#SEBC13180264

230-9368: CYLINDER GP-LIFT

CYLINDER GP-LIFT

230-9368 CYLINDER GP-LIFT -LH
S/N BNH1-UP
WATER GLYCOL
PART OF 2Q-8041 HYDRAULIC AR

i01945718 SEBC1318

For full view, you need register

Parts for your 988G WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	173-8616	[1]	CYLINDER AS
	152-3750	[1]	BEARING
2.	7J-9250	[1]	LOCKNUT (3-1/4X12-THD)
3.	6E-0496	[1]	RING-WEAR
4.	219-1438	[1]	SEAL AS
5.	173-8617	[1]	PISTON
6.	9M-5894	[1]	SEAL-O-RING
7.	108-0122	[1]	RING-BACKUP
8.	173-8614	[1]	HEAD
	225-3290	[1]	SEAL-WIPER
9.	135-7816	[1]	ROD AS
	152-3750	[1]	BEARING
10.	9J-1681	[1]	SEAL AS
11.	9J-1684	[1]	SEAL AS
12.	218-4883	[1]	SEAL AS
13.	8T-3331	[1]	RING-WEAR
14.	8T-0668 M	[11]	BOLT (M24X3X110-MM)
15.	6V-8237	[11]	WASHER (26X44X4-MM THK)
	M		METRIC PART
	R		REMANUFACTURED PART MAY BE AVAILABLE

#SEBC13180265

309-9546: CYLINDER GP-LIFT

CYLINDER GP-LIFT

309-9546 CYLINDER GP-LIFT
S/N BNH1-UP; 2TW1-UP
234.95-MM BORE X 911-MM STROKE
PART OF 174-4682 LINES GP-LIFT CYLINDER

i03846890 SEBC1318

For full view, you need register

Parts for your 988G 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

#SEBC13180266

309-9547: CYLINDER GP-LIFT

CYLINDER GP-LIFT

309-9547 CYLINDER GP-LIFT
S/N BNH1-UP; 2TW1-UP
234.95-MM BORE X 911-MM STROKE
PART OF 174-4682 LINES GP-LIFT CYLINDER

i03846990 SEBC1318

For full view, you need register

Parts for your 988G 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

#SEBC13180267

228-7908: CYLINDER GP-LIFT & TILT

CYLINDER GP-LIFT & TILT

228-7908 CYLINDER GP-LIFT & TILT -LIFT, TILT
S/N BNH1-UP
CUSTOM
PART OF 2Q-8533 STEEL MILL AR

i01949769 SEBC1318

2287908 CYLINDER GP-LIFT & TILT Parts scheme

For full view, you need register

Parts for your 988G WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
2.	156-4403	[1]	U-BOLT
3.	227-3272	[1]	HARNESS AS-CHASSIS
	102-8802	[1]	KIT-RECEPTACLE (2-PIN)
	102-8803	[1]	KIT-RECEPTACLE (3-PIN)
	102-8804	[1]	KIT-RECEPTACLE (4-PIN)
	102-8805	[1]	KIT-RECEPTACLE (6-PIN)
	102-8806	[1]	KIT-RECEPTACLE (8-PIN)
	102-8801	[1]	KIT-RECEPTACLE (12-PIN)
	3S-2093	[4]	STRAP-CABLE
	3T-0204	[1]	RECEPTACLE AS-CONNECTOR (20-PIN)
	8N-1536	[1]	NUT (1-5/8-18-THD)
	3T-3412	[1]	PLUG AS-CONNECTOR (37-PIN)
	8N-1513	[1]	RECEPTACLE AS-CONNECTOR (37-PIN)
	8N-1522	[1]	NUT (2-1/4-16-THD)
	8N-1514	[1]	PLUG AS-CONNECTOR (37-PIN)
	8N-1515	[1]	RECEPTACLE AS-CONNECTOR (24-PIN)
	8N-1522	[1]	NUT (2-1/4-16-THD)
	8N-1517	[1]	RECEPTACLE AS-CONNECTOR (25-PIN)
	8N-1522	[1]	NUT (2-1/4-16-THD)
	8N-1518	[1]	PLUG AS-CONNECTOR (25-PIN)
	8N-1521	[6]	BELL AS-END
	8N-1535	[1]	BELL AS-END
	155-2255	[1]	KIT-CONNECTING PLUG (12-PIN)
	155-2260	[1]	KIT-CONNECTING PLUG (3-PIN)
	155-2271	[1]	KIT-CONNECTING PLUG (4-PIN)
	155-2274	[1]	KIT-CONNECTING PLUG (6-PIN)
4.	227-3315	[1]	BRACKET AS
5.	227-3316	[1]	BRACKET
6.	228-7906	[1]	HARNESS AS-SENSOR (LIFT, TILT POSITION)
	102-8805	[1]	KIT-RECEPTACLE (6-PIN)
	155-2271	[1]	KIT-CONNECTING PLUG (4-PIN)
7.	230-7913 Y	[1]	CYLINDER & SENSOR GP-TILT
8.	230-7914 Y	[1]	CYLINDER & SENSOR GP-LIFT (RH)
9.	115-3071	[1]	CLIP AS-CONNECTING (6-PIN)
	8C-3334	[1]	RIVET-TUBULAR
10.	2D-4534	[2]	BOLT-SOCKET HEAD (3/8-16X1-IN)
11.	5P-9085	[12]	CLIP
12.	5P-9299	[5]	CLIP (LOOP)
13.	8T-4121	[13]	WASHER-HARD (11X21X2.5-MM THK)
14.	8T-4133 M	[1]	NUT (M10X1.5-THD)
15.	8T-4137 M	[12]	BOLT (M10X1.5X20-MM)
16.	8T-4223	[2]	WASHER-HARD (13.5X25.5X3-MM THK)
17.	8T-4244 M	[2]	NUT (M12X1.75-THD)

			***STANDARD REMOVAL***
	152-1644 AFJ	[1]	CYLINDER GP-TILT (HIGH LIFT MACHINES)
	173-8612 AFL	[1]	CYLINDER GP-LIFT (RH)
	227-0867 AFN	[1]	HARNESS AS-CHASSIS (MAIN)

			***ATTACHMENT REMOVAL***
	4S-5565 AFP	[2]	BOLT (3/8-16X0.875-IN)
	A		NOT PART OF THIS GROUP
	F		NOT SHOWN
	J		PART OF STANDARD LINES GP-TILT CYLINDER
	L		PART OF STANDARD LINES GP-LIFT CYLINDER
	M		METRIC PART
	N		PART OF STANDARD WIRING GP-MACHINE
	P		PART OF ATTACHMENT CYLINDER GP-TILT
	Y		SEPARATE ILLUSTRATION

#SEBC13180268

168-6944: CYLINDER GP-TILT

CYLINDER GP-TILT

168-6944 CYLINDER GP-TILT
S/N 2TW1-UP
235-MM BORE X 1290-MM STROKE
PART OF 156-4801 LINES GP-TILT CYLINDER

i01157273 SEBC1318

For full view, you need register

Parts for your 988G WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	170-2487	[1]	PISTON
2.	170-2490	[1]	ROD AS
	152-3739	[2]	BUSHING
3.	170-2492	[1]	CYLINDER AS
	152-3739	[2]	BUSHING
4.	196-2331	[1]	HEAD
5.	158-3032	[1]	RING-BACKUP
6.	167-2220	[1]	SEAL AS-BUFFER
7.	167-2336	[1]	SEAL-U-CUP
8.	167-2487	[1]	SEAL-WIPER
9.	192-1435	[1]	SEAL AS
10.	192-2049	[2]	RING-BACKUP
11.	1J-5281	[1]	RING-WEAR
12.	1U-3174	[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)
17.	9X-3579	[1]	RING-WEAR
	M		METRIC PART

#SEBC13180269

191-3468: CYLINDER GP-TILT

CYLINDER GP-TILT

191-3468 CYLINDER GP-TILT
S/N BNH1-UP; 2TW1-UP
235-MM BORE X 1556-MM STROKE
PART OF 156-4801 LINES GP-TILT CYLINDER

i02402604 SEBC1318

For full view, you need register

Parts for your 988G 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

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 Vented Buffer Seal Assembly, U-Cup Seal, and Double Lip Wiper Seal for Hydraulic Cylinders{7562}
Installation of Vented Buffer Seal Assembly, U-Cup Seal, and Double Lip Wiper Seal for Hydraulic Cylinders{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}

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 INSTALLING NEW HYDRAULIC CYLINDER WIPER SEALS ON CERTAIN 988G, 990 II, 992G WHEEL LOADERS D9R, D10R AND D11R TRACK TYPE TRACTORS
PRODUCT SUPPORT PROGRAM FOR INSTALLING NEW HYDRAULIC CYLINDER WIPER SEALS ON CERTAIN 988G, 990 II, 992G WHEEL LOADERS D9R, D10R AND D11R TRACK TYPE TRACTORS

PRODUCT SUPPORT PROGRAM FOR REPLACING LEAKING TILT CYLINDER ASSEMBLY ON CERTAIN 988G WHEEL LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING LEAKING TILT CYLINDER ASSEMBLY ON CERTAIN 988G 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 LEAKING TILT CYLINDER ASSEMBLY ON CERTAIN 988G WHEEL LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING LEAKING TILT CYLINDER ASSEMBLY ON CERTAIN 988G WHEEL LOADERS

Service Letter-CFEL

PRODUCT SUPPORT PROGRAM FOR REPLACING LEAKING TILT CYLINDER ASSEMBLY ON CERTAIN 988G WHEEL LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING LEAKING TILT CYLINDER ASSEMBLY ON CERTAIN 988G WHEEL LOADERS

Service Letter-CSARL

PRODUCT SUPPORT PROGRAM FOR REPLACING LEAKING TILT CYLINDER ASSEMBLY ON CERTAIN 988G WHEEL LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING LEAKING TILT CYLINDER ASSEMBLY ON CERTAIN 988G WHEEL LOADERS

Service Letter-Americas

PRODUCT SUPPORT PROGRAM FOR REPLACING LEAKING TILT CYLINDER ASSEMBLY ON CERTAIN 988G WHEEL LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING LEAKING TILT CYLINDER ASSEMBLY ON CERTAIN 988G WHEEL LOADERS

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}

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

Lift Cylinder
988G Wheel Loader Electrohydraulic System

Tilt Cylinder
988G 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 LEAKING TILT CYLINDER ASSEMBLY ON CERTAIN 988G WHEEL LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING LEAKING TILT CYLINDER ASSEMBLY ON CERTAIN 988G WHEEL LOADERS

Service Letter-Asia

PRODUCT SUPPORT PROGRAM FOR REPLACING LEAKING TILT CYLINDER ASSEMBLY ON CERTAIN 988G WHEEL LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING LEAKING TILT CYLINDER ASSEMBLY ON CERTAIN 988G 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 LEAKING TILT CYLINDER ASSEMBLY ON CERTAIN 988G WHEEL LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING LEAKING TILT CYLINDER ASSEMBLY ON CERTAIN 988G WHEEL LOADERS

Testing and Adjusting

Implement Hydraulic Service Mode
988G Wheel Loader Electrohydraulic System

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

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

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

Implement Cycle Time - Check
988G Wheel Loader Electrohydraulic System

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

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

Bench Test Procedures

Disassembly and Assembly

Tilt Cylinder - Remove
988G Wheel Loader Machine Systems

Tilt Cylinder - Install
988G Wheel Loader Machine Systems

Tilt Cylinder, Boom Links, and Bucket Links - Remove
988G Wheel Loader Machine Systems

Tilt Cylinder, Boom Links, and Bucket Links - Install
988G Wheel Loader Machine Systems

Lift Cylinder - Remove and Install
988G Wheel Loader Machine Systems

Service Magazine

New Backup Rings Are Available for Sealing Hydraulic Cylinders with Pitted Grooves {4303, 5102, 5104, 5106, 5456, 7562}
2002/07/01

New Seals and Backup Rings for Hydraulic Cylinders are Available {4303, 5102, 5104, 7562}
2001/08/06

New Assembly Instructions for Rod Seals on Hydraulic Cylinders are Available {7562}
2001/07/30

Correctly Assembling the Buffer Seal Will Prevent Failure of the U-Cup Seals {7562}
2001/07/30

New Tools are Available for Installing Cylinder Rod Seals {0738, 5102, 5104}
2001/09/24

Correction to Troubleshooting and Testing and Adjusting , "Implement Cycle Time - Check" {6000}
2002/08/12

Double Lip Wiper Seals Must Be Installed Properly {7562}
2002/12/09

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

Compatible Puller Stud and Hydraulic Cylinder Capacity Chart {0599, 7000, 7562}
2011/10/17

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

Improved Implement Software for the Tilt Cylinder Seal is Now Available for Certain 988G and 988H Wheel Loaders {5104, 5112, 5701, 7610, 7620}
2010/05/10

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

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 988G :

230-7913 CYLINDER & SENSOR GP-TILT

230-7914 CYLINDER & SENSOR GP-LIFT

227-3317 CONVERSION GP-HYDRAULIC LINES

222-3757 CONVERSION GP-HYDRAULIC LINES

2Q-8587 CONVERSION GP-CONTROL VALVE

2Q-8501 CONTROL GP-RIDE

168-6943 CYLINDER GP-LIFT

230-9366 CYLINDER GP-LIFT

230-9367 CYLINDER GP-LIFT

230-9368 CYLINDER GP-LIFT

309-9546 CYLINDER GP-LIFT

309-9547 CYLINDER GP-LIFT

228-7908 CYLINDER GP-LIFT & TILT

168-6944 CYLINDER GP-TILT

Truck sale:

Caterpillar 988G
- Wheel Loaders
FINANZAUTO S.A.

69,000

Caterpillar 988G, Wheel Loaders, Construction
- Wheel Loaders
FABICK CAT

Caterpillar 988G/H HIGH LIFT CYLINDER AND BUCKET, bucket, Construction
- bucket
WILLIAM ADAMS PTY. LTD.

Caterpillar 988G/H, bucket, Construction
- bucket
WILLIAM ADAMS PTY. LTD.

72,000

Caterpillar 988G, Wheel Loaders, Construction
- Wheel Loaders
MACALLISTER MACHINERY CO., INC