212-3248 CYLINDER GP-TILT -LOW LIFT MACHINES S/N BNH1-UP; 2TW1-UP 220-MM BORE X 1556-MM STROKE. CUSTOM PART OF 189-7794 LINES GP-TILT CYLINDER 988G

HYDRAULIC SYSTEM

CYLINDER GP

0. 212-3248 CYLINDER G
1. 309-9545 CYLINDER G

VALVE GP-CONTROL

2. 189-7811 GUARD GP-C
3. 2Q-8552 GUARD GP-C

HYDRAULIC GP

4. 2Q-8041 HYDRAULIC

LINES GP-FRONT

5. 172-8876 LINES GP-F
6. 219-5021 LINES GP-F

LINES GP-HYDRAULIC

7. 189-7250 LINES GP-H
8. 189-7259 LINES GP-H
9. 219-5022 LINES GP-H
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

168-6944 CYLINDER GP-TILT

191-3468 CYLINDER GP-TILT

212-3248 CYLINDER GP-TILT

309-9545 CYLINDER GP-TILT

#SEBC13180270

212-3248: CYLINDER GP-TILT

CYLINDER GP-TILT

212-3248 CYLINDER GP-TILT -LOW LIFT MACHINES
S/N BNH1-UP; 2TW1-UP
220-MM BORE X 1556-MM STROKE. CUSTOM
PART OF 189-7794 LINES GP-TILT CYLINDER

i01945942 SEBC1318

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Parts for your 988G 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

#SEBC13180271

309-9545: CYLINDER GP-TILT

CYLINDER GP-TILT

309-9545 CYLINDER GP-TILT
S/N BNH1-UP; 2TW1-UP
235-MM BORE X 1556-MM STROKE
PART OF 156-4801 LINES GP-TILT CYLINDER

i03786630 SEBC1318

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Parts for your 988G 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

#SEBC13180272

189-7811: GUARD GP-CONTROL VALVE

GUARD GP-CONTROL VALVE

189-7811 GUARD GP-CONTROL VALVE
S/N BNH1-UP
CUSTOM
PART OF 2Q-8552 GUARD GP-CONTROL VALVE

i01982808 SEBC1318

1897811 GUARD GP-CONTROL VALVE Parts scheme

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Parts for your 988G WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	189-7812	[1]	PLATE
2.	189-7814	[1]	PLATE
3.	189-7816	[1]	PLATE
4.	189-7846	[1]	PLATE AS
5.	189-7847	[1]	PLATE AS
6.	7X-7729	[12]	WASHER (11X25X3-MM THK)
7.	8T-3490 M	[3]	NUT-WELD (M10X1.5-THD)
8.	8T-4137 M	[12]	BOLT (M10X1.5X20-MM)
	M		METRIC PART

#SEBC13180273

2Q-8552: GUARD GP-CONTROL VALVE

GUARD GP-CONTROL VALVE

2Q-8552 GUARD GP-CONTROL VALVE
S/N BNH1-UP
CUSTOM
PART OF 2Q-8555 WASTE HANDLING AR

i01982801 SEBC1318

2Q8552 GUARD GP-CONTROL VALVE Parts scheme

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Parts for your 988G WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	189-7811 Y	[1]	GUARD GP-CONTROL VALVE
2.	189-7849 Y	[1]	HARDWARE GP-LOADER FRAME (MAIN CONTROL VALVE)
	Y		SEPARATE ILLUSTRATION

#SEBC13180274

2Q-8041: HYDRAULIC AR

HYDRAULIC AR

2Q-8041 HYDRAULIC AR -WATER GLYCOL
S/N BNH1-UP
CUSTOM

i01945684 SEBC1318

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Parts for your 988G WHEEL LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
230-9367 Y	[1]	CYLINDER GP-LIFT (RH, WATER GLYCOL)
230-9368 Y	[1]	CYLINDER GP-LIFT (WATER GLYCOL, LH)
230-9366 Y	[1]	CYLINDER GP-LIFT (HIGH, WATER GLYCOL)
230-9364 Y	[1]	CYLINDER GP-STEERING (RH, WATER GLYCOL)
230-9365 Y	[1]	CYLINDER GP-STEERING (WATER GLYCOL, LH)
Y	[1]	PUMP GP-PISTON (WATER GLYCOL)(IMPLEMENT, WATER GLYCOL)

		***STANDARD REMOVAL***
173-8612 N	[1]	CYLINDER GP-LIFT (RH)
173-8613 N	[1]	CYLINDER GP-LIFT (LH)
133-8173 J	[1]	CYLINDER GP-STEERING (LH)
135-3288 J	[1]	CYLINDER GP-STEERING (RH)
152-1644 L	[1]	CYLINDER GP-TILT (HIGH LIFT MACHINES)
219-7225 P	[1]	PUMP GP-PISTON (IMPLEMENT)
J		FROM STANDARD CYLINDER & MTG GP-STEERING
L		FROM STANDARD LINES GP-TILT CYLINDER
N		FROM STANDARD LINES GP-LIFT CYLINDER
P		FROM STANDARD PUMP & MTG GP-IMPLEMENT
R		REMANUFACTURED PART MAY BE AVAILABLE
Y		SEPARATE ILLUSTRATION

#SEBC13180275

172-8876: LINES GP-FRONT

LINES GP-FRONT

172-8876 LINES GP-FRONT
S/N BNH1-UP; 2TW1-UP
PART OF 2Q-8448, 2Q-8449, 2Q-8450 CONVERSION AR-MACHINE, 2Q-8461 HANDLER AR-BLOCK, 2Q-8388, 2Q-8460 LIFT AR, 2Q-7750 STEEL MILL AR

i01157019 SEBC1318

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Parts for your 988G WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	7I-8640	[8]	CLAMP-HALF
2.	174-0830	[1]	TUBE AS
3.	174-0831	[1]	TUBE AS
4.	174-0832	[1]	TUBE AS
5.	174-0833 I	[1]	HOSE AS
6.	174-2435	[1]	BRACKET AS
7.	188-7007	[1]	BRACKET AS
8.	188-7009	[1]	TUBE AS
9.	188-7010	[1]	TUBE AS
10.	200-5254	[2]	BRACKET AS
11.	212-6862 I	[1]	HOSE AS
12.	103-1303	[8]	CLAMP-HALF
13.	1P-3704	[2]	SEAL-RECTANGULAR
14.	1P-3705	[2]	SEAL-RECTANGULAR
15.	1P-3706	[3]	SEAL-RECTANGULAR
16.	1P-5767	[8]	FLANGE-HALF
17.	5P-8077	[4]	FLANGE-HALF
18.	7X-2553 M	[16]	BOLT (M16X2X40-MM)
19.	7X-2556 M	[8]	BOLT (M16X2X100-MM)
20.	8T-4140 M	[8]	BOLT (M16X2X60-MM)
21.	8T-4193 M	[4]	BOLT (M16X2X50-MM)
22.	8T-4194 M	[16]	BOLT (M12X1.75X50-MM)
23.	8T-4223	[16]	WASHER-HARD (13.5X25.5X3-MM THK)
24.	8T-4779 M	[8]	BOLT (M16X2X35-MM)
25.	9X-8257	[44]	WASHER (17.5X30X3.5-MM THK)
	I		REFER TO HYDRAULIC INFORMATION SYSTEM
	M		METRIC PART

#SEBC13180276

219-5021: LINES GP-FRONT

LINES GP-FRONT

219-5021 LINES GP-FRONT
S/N BNH1-UP
CUSTOM
PART OF 222-3757 CONVERSION GP-HYDRAULIC LINES

i01928638 SEBC1318

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Parts for your 988G WHEEL LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
299-9480 I	[1]	HOSE AS
174-0833 I	[1]	HOSE AS
2Q-0584 E		INSULATION (151-CM)
5P-4868	[2]	CLAMP-HOSE
299-9481	[1]	HOSE AS
212-6862 I	[1]	HOSE AS
2Q-0584 E		INSULATION (149-CM)
5P-4868	[2]	CLAMP-HOSE

		***ATTACHMENT REMOVAL***
174-0833 JI	[1]	HOSE AS
212-6862 JI	[1]	HOSE AS
E		ORDER BY THE CENTIMETER
I		REFER TO HYDRAULIC INFORMATION SYSTEM
J		PART OF STANDARD LINES GP-FRONT

#SEBC13180277

189-7250: LINES GP-HYDRAULIC

LINES GP-HYDRAULIC

189-7250 LINES GP-HYDRAULIC
S/N BNH1-UP
PART OF 222-3757, 227-3317 CONVERSION GP-HYDRAULIC LINES

i01913224 SEBC1318

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Parts for your 988G WHEEL LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
227-3216 I	[1]	HOSE AS
189-7144	[1]	HOSE AS
189-7145	[1]	HOSE AS
189-7146	[1]	HOSE AS
189-7147	[1]	HOSE AS
189-7148	[1]	HOSE AS
I		REFER TO HYDRAULIC INFORMATION SYSTEM

#SEBC13180278

189-7259: LINES GP-HYDRAULIC

LINES GP-HYDRAULIC

189-7259 LINES GP-HYDRAULIC -MAIN CONTROL VALVE
S/N BNH1-UP
PART OF 227-3317 CONVERSION GP-HYDRAULIC LINES

i01915884 SEBC1318

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Parts for your 988G WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	189-7165 I	[1]	HOSE AS
2.	189-7166 I	[1]	HOSE AS
3.	189-7167 I	[1]	HOSE AS
4.	189-7168 I	[1]	HOSE AS
5.	189-7169	[1]	HOSE AS
6.	299-9482 I	[1]	HOSE AS
	I		REFER TO HYDRAULIC INFORMATION SYSTEM

#SEBC13180279

219-5022: LINES GP-HYDRAULIC

LINES GP-HYDRAULIC

219-5022 LINES GP-HYDRAULIC -MAIN CONTROL VALVE
S/N BNH1-UP
CUSTOM
PART OF 222-3757 CONVERSION GP-HYDRAULIC LINES

i01928719 SEBC1318

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Parts for your 988G WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	189-7165 I	[1]	HOSE AS
	198-7667 I	[1]	HOSE AS
	9M-7958	[2]	CLAMP-HOSE
	2Q-0604 E		INSULATION (33-CM)
2.	189-7166 I	[1]	HOSE AS
	198-8196 I		HOSE AS
	9M-7958	[2]	CLAMP-HOSE
	2Q-0604 E		INSULATION (52-CM)
3.	189-7167 I	[1]	HOSE AS
	198-7670 I	[1]	HOSE AS
	9M-7958	[2]	CLAMP-HOSE
	2Q-0604 E		INSULATION (24-CM)
4.	189-7168 I	[1]	HOSE AS
	198-7668 I	[1]	HOSE AS
	9M-7958	[2]	CLAMP-HOSE
	2Q-0604 E		INSULATION (43-CM)
5.	189-7169	[1]	HOSE AS
	198-7669 I	[1]	HOSE AS
	9M-7958	[2]	CLAMP-HOSE
	2Q-0604 E		INSULATION (70-CM)
6.	299-9482 I	[1]	HOSE AS
	156-9156 I	[1]	HOSE AS
	9M-7958	[2]	CLAMP-HOSE
	2Q-0604 E		INSULATION (50-CM)
	E		ORDER BY THE CENTIMETER
	I		REFER TO HYDRAULIC INFORMATION SYSTEM

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 :

191-3468 CYLINDER GP-TILT

168-6944 CYLINDER GP-TILT

228-7908 CYLINDER GP-LIFT & TILT

309-9547 CYLINDER GP-LIFT

309-9546 CYLINDER GP-LIFT

230-9368 CYLINDER GP-LIFT

230-9367 CYLINDER GP-LIFT

230-9366 CYLINDER GP-LIFT

309-9545 CYLINDER GP-TILT

189-7811 GUARD GP-CONTROL VALVE

2Q-8552 GUARD GP-CONTROL VALVE

2Q-8041 HYDRAULIC AR

172-8876 LINES GP-FRONT

219-5021 LINES GP-FRONT

189-7250 LINES GP-HYDRAULIC

189-7259 LINES GP-HYDRAULIC

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