261-3972 VALVE GP-MAIN CONTROL -3-FUNCTION S/N A6D1-UP PART OF 236-9090 VALVE & MTG GP-MAIN CONTROL Type 1 966H

HYDRAULIC SYSTEM

VALVE GP-CONTROL

0. 261-3972 VALVE GP-M
1. 261-3972 VALVE GP-M

VALVE GP-PRESSURE REDUCING

2. 193-1665 VALVE GP-P

PUMP GP

3. 207-0695 VALVE GP-P
4. 207-0697 VALVE GP-P
5. 254-6561 VALVE GP-P
6. 298-8919 VALVE GP-P

VALVE GP-RELIEF

7. 346-3797 VALVE GP-R
8. 4T-7581 VALVE GP-R

VALVE GP-RIDE CONTROL

9. 253-4026 VALVE GP-R
0. INFORMATION

WHEEL LOADER 966H WHEEL LOADER A6D
966H Wheel Loader A6D00001-UP (MACHINE) POWERED BY C11 Engine SEBP3743 966H A6D (2005)

HYDRAULIC SYSTEM

VALVE GP-CONTROL

261-2338 VALVE GP-MAIN CONTROL

261-3945 VALVE GP-MAIN CONTROL

261-3972 VALVE GP-MAIN CONTROL

#SEBP37431100

261-3972: VALVE GP-MAIN CONTROL

VALVE GP-MAIN CONTROL

261-3972 VALVE GP-MAIN CONTROL -3-FUNCTION
S/N A6D1-UP
PART OF 236-9090 VALVE & MTG GP-MAIN CONTROL
Type 1

i02207907 SEBP3743

2613972 VALVE GP-MAIN CONTROL Parts scheme

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Parts for your 966H WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
2.	238-1796 M	[4]	STUD (M16X2X535-MM)
3.	247-7601 Y	[1]	VALVE GP-CONTROL (RIDE)
4.	261-0015 Y	[1]	VALVE GP-CONTROL (TILT)
5.	261-0016 Y	[1]	VALVE GP-CONTROL (LIFT)
6.	261-0017 Y	[1]	VALVE GP-CONTROL (AUXILIARY)
8.	269-9397 Y	[1]	MANIFOLD GP-VALVE (INLET)
9.	269-9398 Y	[1]	MANIFOLD GP-VALVE (END COVER)
10.	183-7263	[1]	PLUG AS
	3J-7354	[1]	SEAL-O-RING
	9S-8002	[1]	PLUG (7/16-20-THD)
11.	8T-4132 M	[8]	NUT (M16X2-THD)
12.	9X-8257	[8]	WASHER (17.5X30X3.5-MM THK)
	M		METRIC PART
	Y		SEPARATE ILLUSTRATION

#SEBP37431101

261-3972: VALVE GP-MAIN CONTROL

VALVE GP-MAIN CONTROL

261-3972 VALVE GP-MAIN CONTROL -3-FUNCTION
S/N A6D1-UP
PART OF 236-9090 VALVE & MTG GP-MAIN CONTROL
Type 2

i05996936 SEBP3743

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Parts for your 966H WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
2.	238-1796 M	[4]	STUD (M16X2X535-MM)
3.	247-7601 Y	[1]	VALVE GP-CONTROL (RIDE)
4.	261-0015 Y	[1]	VALVE GP-CONTROL (TILT)
5.	261-0016 Y	[1]	VALVE GP-CONTROL (LIFT)
6.	261-0017 Y	[1]	VALVE GP-CONTROL (AUXILIARY)
8.	269-9397 Y	[1]	MANIFOLD GP-VALVE (INLET)
9.	269-9398 Y	[1]	MANIFOLD GP-VALVE (END COVER)
10.	183-7263	[1]	PLUG AS
	3J-7354	[1]	SEAL-O-RING
	9S-8002	[1]	PLUG (7/16-20-THD)
11.	8T-4132 M	[8]	NUT (M16X2-THD)
12.	9X-8257	[8]	WASHER (17.5X30X3.5-MM THK)
13.	260-8590 CY	[3]	VALVE GP-SHUTTLE
	C		CHANGE FROM PREVIOUS TYPE
	M		METRIC PART
	Y		SEPARATE ILLUSTRATION

#SEBP37431102

193-1665: VALVE GP-PRESSURE REDUCING

VALVE GP-PRESSURE REDUCING

193-1665 VALVE GP-PRESSURE REDUCING -SIGNAL DUPLICATION
S/N A6D1-UP
PART OF 269-9397 MANIFOLD GP-VALVE

i01494384 SEBP3743

1931665 VALVE GP-PRESSURE REDUCING Parts scheme

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Parts for your 966H WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	193-1664	[1]	VALVE GP-CONTROL
2.	3J-1907	[2]	SEAL-O-RING
3.	4J-5268	[1]	SEAL-O-RING
4.	4J-5351	[1]	SEAL-O-RING
5.	301-5243	[1]	RING-BACKUP
6.	5J-2974	[1]	SEAL-O-RING
7.	5P-6719	[1]	PLUG
8.	301-5241	[1]	RING-BACKUP
9.	301-5242	[1]	RING-BACKUP

#SEBP37431103

207-0695: VALVE GP-PUMP CONTROL

VALVE GP-PUMP CONTROL

207-0695 VALVE GP-PUMP CONTROL -BRAKE, HYDRAULIC FAN-PRESSURE, FLOW COMPENSATOR
S/N A6D1-UP
PART OF 254-5147 PUMP GP-PISTON

i01571780 SEBP3743

2070695 VALVE GP-PUMP CONTROL Parts scheme

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Parts for your 966H WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	6E-6528	[6]	SEAL
2.	6E-6527	[2]	PLUG
3.	193-3086	[1]	RETAINER
4.	193-3087	[1]	SPRING
5.	5P-9262	[1]	SEAL-O-RING
6.	033-6043	[1]	SEAL-O-RING
7.	6E-3272	[1]	SEAT
8.		[1]	PLUG
9.	6E-6538 M	[2]	NUT-ADJUSTMENT (M8X1-THD)
10.	6E-6537 M	[2]	SCREW-ADJUSTMENT (M8X1X28-MM)
11.	6E-6539 M	[2]	NUT-CAP (M8X1-THD)
12.	6E-3273	[1]	SEAT
13.	6E-6536	[1]	PLUG
14.	6V-8352	[1]	SEAL-O-RING
15.	193-1036	[1]	SPRING
16.	6E-3276	[1]	SPRING
17.	6E-3269	[1]	RETAINER-SPRING
18.	119-0959	[1]	PLUG-ORIFICE
19.	105-2145	[1]	VALVE-ORIFICE
	M		METRIC PART

#SEBP37431104

207-0697: VALVE GP-PUMP CONTROL

VALVE GP-PUMP CONTROL

207-0697 VALVE GP-PUMP CONTROL -BRAKE, HYDRAULIC FAN-PRESSURE, FLOW COMPENSATOR
S/N A6D1-UP
PART OF 254-5147 PUMP GP-PISTON

i01592887 SEBP3743

2070697 VALVE GP-PUMP CONTROL Parts scheme

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Parts for your 966H WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	6E-6528	[6]	SEAL
2.	6E-6527	[2]	PLUG
3.	6E-3268	[1]	RETAINER-SPRING
4.	6E-3275	[1]	SPRING
5.	6E-3274	[1]	SPRING
6.	033-6043	[1]	SEAL-O-RING
7.	6E-3272	[1]	SEAT
8.	119-0959	[1]	PLUG-ORIFICE
9.	6E-6538 M	[2]	NUT-ADJUSTMENT (M8X1-THD)
10.	6E-6537 M	[2]	SCREW-ADJUSTMENT (M8X1X28-MM)
11.	6E-6539 M	[2]	NUT-CAP (M8X1-THD)
12.	6E-3273	[1]	SEAT
13.	6E-6536	[1]	PLUG
14.	6V-8352	[1]	SEAL-O-RING
15.	193-1036	[1]	SPRING
16.	6E-3276	[1]	SPRING
17.	462-7927	[1]	COLLAR-SPRING
18.	105-2145	[1]	VALVE-ORIFICE
19.	5P-9262	[1]	SEAL-O-RING
20.	3J-7354	[1]	SEAL-O-RING
21.	9S-8002	[1]	PLUG (7/16-20-THD)
22.	8T-8442 M	[4]	BOLT-SOCKET HEAD (M6X1X30-MM)
23.	228-7088	[3]	SEAL-O-RING
	M		METRIC PART

#SEBP37431105

254-6561: VALVE GP-PUMP CONTROL

VALVE GP-PUMP CONTROL

254-6561 VALVE GP-PUMP CONTROL -IMPLEMENT, PILOT-PRESSURE, FLOW COMPENSATOR
S/N A6D1-678
PART OF 254-4109 PUMP GP-PISTON

i02214715 SEBP3743

2546561 VALVE GP-PUMP CONTROL Parts scheme

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Parts for your 966H WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	215-9962	[1]	STOPPER
2.	225-4456	[2]	COVER
3.	225-4607 M	[1]	SETSCREW (M20X2.5X45-MM)
4.	245-7438	[1]	PIN
5.	247-8920	[1]	ORIFICE
6.	248-9953	[1]	RETAINER
7.	248-9954	[1]	RETAINER
8.	248-9955	[1]	GUIDE
9.	248-9956	[2]	PISTON
10.	Z	[1]	BODY AS
11.	259-7889	[1]	SPOOL AS
12.	263-1202	[1]	SPRING
13.	263-1203	[1]	COVER
14.	263-1204	[1]	PISTON
15.	272-6174	[2]	SETSCREW
16.	273-5464	[1]	COVER
17.	277-2545	[2]	SEAL-O-RING
18.	277-2548	[2]	SEAL-O-RING
19.	277-2550	[1]	SEAL-O-RING
20.	095-1785	[2]	RING-BACKUP
21.	095-1787	[2]	RING-BACKUP
22.	095-1788	[1]	RING-BACKUP
23.	8T-4131 M	[1]	NUT (M20X2.5-THD)
24.	153-8623	[1]	RING-BACKUP
25.	189-9763	[3]	SEAL-O-RING
26.	190-7673	[1]	SEAL-O-RING
27.	190-7674	[1]	SEAL-O-RING
28.	270-8937	[1]	SPRING
29.	3J-1907	[1]	SEAL-O-RING
30.	3K-6113	[4]	WASHER-HARD (12X18.5X3-MM THK)
31.	6V-3319	[1]	SEAL-O-RING
32.	7J-0204	[1]	SEAL-O-RING
33.	7X-3392	[6]	WASHER-HARD (13.5X22.5X3-MM THK)
34.	8T-0273 M	[6]	BOLT-SOCKET HEAD (M12X1.75X40-MM)
35.	8T-1159 M	[4]	BOLT-SOCKET HEAD (M10X1.5X25-MM)
36.	8T-4133 M	[2]	NUT (M10X1.5-THD)
37.	9S-8004	[1]	PLUG (9/16-18-THD)
38.	9S-8007	[1]	PLUG
	M		METRIC PART
	Z		NOT SERVICED SEPARATELY

#SEBP37431106

298-8919: VALVE GP-PUMP CONTROL

VALVE GP-PUMP CONTROL

298-8919 VALVE GP-PUMP CONTROL -IMPLEMENT, PILOT-PRESSURE, FLOW COMPENSATOR
S/N A6D679-UP
PART OF 292-8768 PUMP GP-PISTON

i02682939 SEBP3743

2988919 VALVE GP-PUMP CONTROL Parts scheme

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Parts for your 966H WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	215-9962	[1]	STOPPER
2.	225-4607 M	[1]	SETSCREW (M20X2.5X45-MM)
3.	245-7438	[1]	PIN
4.	247-8920	[1]	ORIFICE
5.	248-9953	[1]	RETAINER
6.	248-9954	[1]	RETAINER
7.	248-9955	[1]	GUIDE
8.	254-6562	[1]	BODY AS
	124-1555	[1]	PLUG
9.	259-7889	[1]	SPOOL AS
10.	263-1202	[1]	SPRING
11.	263-1203	[1]	COVER
12.	263-1204	[1]	PISTON
13.	273-5464	[1]	COVER
14.	277-2545	[2]	SEAL-O-RING
15.	277-2548	[2]	SEAL-O-RING
16.	277-2550	[1]	SEAL-O-RING
17.	294-0701	[2]	COVER
18.	294-0702	[2]	SETSCREW
19.	303-3499	[2]	PISTON
20.	095-1785	[2]	RING-BACKUP
21.	095-1787	[2]	RING-BACKUP
22.	095-1788	[1]	RING-BACKUP
23.	8T-4131 M	[1]	NUT (M20X2.5-THD)
24.	153-8623	[1]	RING-BACKUP
25.	189-9763	[3]	SEAL-O-RING
26.	190-7673	[1]	SEAL-O-RING
27.	190-7674	[1]	SEAL-O-RING
28.	270-8937	[1]	SPRING
29.	3J-1907	[1]	SEAL-O-RING
30.	3K-6113	[4]	WASHER-HARD (12X18.5X3-MM THK)
31.	6V-3319	[1]	SEAL-O-RING
32.	7J-0204	[1]	SEAL-O-RING
33.	7X-3392	[6]	WASHER-HARD (13.5X22.5X3-MM THK)
34.	8T-0273 M	[6]	BOLT-SOCKET HEAD (M12X1.75X40-MM)
35.	8T-4133 M	[2]	NUT (M10X1.5-THD)
36.	9S-8004	[1]	PLUG (9/16-18-THD)
37.	9S-8007	[1]	PLUG
38.	9X-6032 M	[4]	BOLT-SOCKET HEAD (M10X1.5X30-MM)
	M		METRIC PART

#SEBP37431107

346-3797: VALVE GP-RELIEF

VALVE GP-RELIEF

346-3797 VALVE GP-RELIEF
S/N A6D1-UP
PART OF 4T-7581 VALVE GP-RELIEF

i04158710 SEBP3743

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Parts for your 966H WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	4T-4942	[1]	SPRING
2.	6E-1835	[1]	RETAINER AS
3.	6J-6439	[1]	VALVE-POPPET
4.	9X-6395	[1]	NUT (3/4-16-THD)
5.	3K-0360	[2]	SEAL-O-RING
6.	4T-7571	[1]	PLATE
7.	7J-9933	[1]	SEAL-O-RING
8.	8T-4224 B	[1]	WASHER-HARD (8.8X16X2-MM THK)

			PARTS SHOWN IN GRAPHIC(S) WITHOUT A REFERENCE NUMBER ARE NOT SERVICED SEPARATELY
	B		USE AS REQUIRED

#SEBP37431108

4T-7581: VALVE GP-RELIEF

VALVE GP-RELIEF

4T-7581 VALVE GP-RELIEF -LINE
S/N A6D1-UP
PART OF 253-4026, 353-9453 VALVE GP-RIDE CONTROL

i00166693 SEBP3743

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Parts for your 966H WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	346-3797 Y	[1]	VALVE GP-RELIEF
2.	3K-0360	[2]	SEAL-O-RING
3.	7J-9933	[1]	SEAL-O-RING
	Y		SEPARATE ILLUSTRATION

#SEBP37431109

253-4026: VALVE GP-RIDE CONTROL

VALVE GP-RIDE CONTROL

253-4026 VALVE GP-RIDE CONTROL
S/N A6D1-2580
PART OF 261-2337, 261-2338 VALVE GP-MAIN CONTROL

i02207900 SEBP3743

2534026 VALVE GP-RIDE CONTROL Parts scheme

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Parts for your 966H WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	4T-7581 Y	[1]	VALVE GP-RELIEF (DIRECT OPERATED)(RIDE CONTROL)
2.	148-9359	[2]	PLUG
3.	318-8833	[1]	VALVE GP-CHECK (RIDE CONTROL)
4.	235-6157 J	[1]	VALVE GP-SHUTTLE
5.	252-0737	[1]	VALVE GP-SOLENOID (RIDE CONTROL, BALANCE)
5A.	252-0737	[1]	VALVE GP-SOLENOID (RIDE CONT, LIFT CYL HEAD END)
6.	Z	[1]	BODY-VALVE
8.	260-8590 Y	[1]	VALVE GP-SHUTTLE (BALL RESOLVER)
9.	328-4314 Y	[1]	VALVE GP-SOLENOID (24-VOLT)(RIDE CONTROL, LIFT CYL ROD END)
10.	270-1768 L	[1]	VALVE GP-CHECK (RIDE CONTROL)
	6V-0894	[1]	SEAL-O-RING
	6V-5391	[1]	SEAL-O-RING
	8T-4827	[1]	SEAL-O-RING
11.	148-8335	[1]	CONNECTOR AS
	5K-9090	[1]	SEAL-O-RING
	6V-8635	[1]	CONNECTOR
	7M-8485	[1]	SEAL-O-RING
12.	207-8218	[1]	PLUG AS
	7J-0204	[1]	SEAL-O-RING
	9S-8007	[1]	PLUG
13.	148-8406	[1]	PLUG AS
	7M-8485	[1]	SEAL-O-RING
	9S-9334	[1]	PLUG (1-5/16-12-THD)
14.	162-0177	[1]	PLUG AS
	3J-1907	[1]	SEAL-O-RING
	9S-8004	[1]	PLUG (9/16-18-THD)
15.	173-3993	[11]	PLUG AS
			(EACH INCLUDES)
	4J-7533	[1]	SEAL-O-RING
	9S-8001	[1]	PLUG
16.	162-6448	[1]	PLUG AS
	1N-5999	[1]	PLUG-O-RING
	7J-0204	[1]	SEAL-O-RING
17.	1P-3704	[2]	SEAL-RECTANGULAR
18.	1P-3705	[1]	SEAL-RECTANGULAR
20.	4J-0524	[2]	SEAL-O-RING
21.	4J-9535	[2]	SEAL-O-RING
22.	6J-3134	[5]	SEAL-O-RING
23.	9W-7783	[2]	PLUG
24.	292-8061	[2]	PLUG-EXPANSION
25.	282-8827	[1]	PLUG

			AVAILABLE REPAIR KIT(S):
	238-9844 J	[1]	KIT-SEAL (SHUTTLE VALVE)
	238-9843 L	[1]	KIT-SEAL (CHECK VALVE)
			(EACH KIT INCLUDES RINGS & SEALS)
	J		KIT MARKED J SERVICES PART(S) MARKED J
	L		KIT MARKED L SERVICES PART(S) MARKED L
	Y		SEPARATE ILLUSTRATION
	Z		NOT SERVICED SEPARATELY

Information:

HYDRAULIC SYSTEM

VALVE GP-CONTROL

Special Instruction

Installation of the 315-6302 Third Valve Rework Kit {5051}
Installation of the 315-6302 Third Valve Rework Kit {5051}

Service Letter-NACD

Product Improvement Program For Removing The Shuttle Valve From The Implement Control Valve On Certain 966H And 972H Wheel Loaders
Product Improvement Program For Removing The Shuttle Valve From The Implement Control Valve On Certain 966H And 972H Wheel Loaders

PRODUCT SUPPORT PROGRAM TO INSTALL A NEW CHECK VALVE (RIDE CONTROL) ON CERTAIN 950H, 962H, 966H, 972H WHEEL LOADERS AND IT62H INTEGRATED TOOLCARRIERS
PRODUCT SUPPORT PROGRAM TO INSTALL A NEW CHECK VALVE (RIDE CONTROL) ON CERTAIN 950H, 962H, 966H, 972H WHEEL LOADERS AND IT62H INTEGRATED TOOLCARRIERS

PRODUCT SUPPORT PROGRAM FOR REPLACING THE TILT AND LIFT VALVE GROUP SOLENOIDS (DRIFT REDUCTION) ON CERTAIN 950H, 962H, 966H, 972H MEDIUM WHEEL LOADERS AND IT62H INTEGRATED TOOLCARRIERS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE TILT AND LIFT VALVE GROUP SOLENOIDS (DRIFT REDUCTION) ON CERTAIN 950H, 962H, 966H, 972H MEDIUM WHEEL LOADERS AND IT62H INTEGRATED TOOLCARRIERS

PRODUCT SUPPORT PROGRAM FOR REPLACING THE IMPLEMENT HYDRAULIC LOCKOUT SOLENOID VALVE ON CERTAIN 930H, 950H, 962H, 966H, 972H WHEEL LOADERS AND IT62H INTEGRATED TOOL CARRIERS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE IMPLEMENT HYDRAULIC LOCKOUT SOLENOID VALVE ON CERTAIN 930H, 950H, 962H, 966H, 972H WHEEL LOADERS AND IT62H INTEGRATED TOOL CARRIERS

PRODUCT SUPPORT PROGRAM FOR REPLACING THE BUCKET TILT RELIEF VALVE ON CERTAIN 950H, 962H, 966H, 972H WHEEL LOADERS AND IT62H INTEGRATED TOOL CARRIERS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE BUCKET TILT RELIEF VALVE ON CERTAIN 950H, 962H, 966H, 972H WHEEL LOADERS AND IT62H INTEGRATED TOOL CARRIERS

Product Service Program for replacing 235-6163 Pressure Reducing Valve (PRV) on certain 950H, 962H, 966H, 972H Wheel Loaders and IT62H Integrated Toolcarriers
Product Service Program for replacing 235-6163 Pressure Reducing Valve (PRV) on certain 950H, 962H, 966H, 972H Wheel Loaders and IT62H Integrated Toolcarriers

Service Letter-Australia

Service Letter-CFEL

Service Letter-CSARL

Service Letter-Americas

Technical Information Bulletin

Low Pilot Pressure to the Main Control Valve May Cause Slow Hydraulic Response on Medium Wheel Loaders{5051, 5264, 5467}
Low Pilot Pressure to the Main Control Valve May Cause Slow Hydraulic Response on Medium Wheel Loaders{5051, 5264, 5467}

The Implement Valve May Leak on Certain Wheel Loaders and Integrated Toolcarriers{5051}
The Implement Valve May Leak on Certain Wheel Loaders and Integrated Toolcarriers{5051}

Specifications

Main Control Valve
966H Wheel Loader and 972H
Wheel Loader Electrohydraulic System

Relief Valve (Load Sensing Signal)
966H Wheel Loader and 972H
Wheel Loader Electrohydraulic System

Control Valve (Tilt)
966H Wheel Loader and 972H
Wheel Loader Electrohydraulic System

Control Valve (Lift)
966H Wheel Loader and 972H
Wheel Loader Electrohydraulic System

Control Valve (Auxiliary)
966H Wheel Loader and 972H
Wheel Loader Electrohydraulic System

Pilot Oil Accumulator (Dead Engine Lower)
966H Wheel Loader and 972H
Wheel Loader Electrohydraulic System

Tool Operating Manual

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}

Service Letter-China

Service Letter-Asia

Systems Operation

Main Control Valve
966H Wheel Loader and 972H
Wheel Loader Electrohydraulic System

Custom Service Information

Installation of the 290-3538 Control Valve Conversion Gp (Third Valve Kit){5051, 5057, 5059, 5063}
Installation of the 290-3538 Control Valve Conversion Gp (Third Valve Kit){5051, 5057, 5059, 5063}

Service Letter-APD

Testing and Adjusting

Main Control Valve (Electronic Technician) - Calibrate
966H Wheel Loader and 972H
Wheel Loader Electrohydraulic System

Main Control Valve (Operator Monitor) - Calibrate
966H Wheel Loader and 972H
Wheel Loader Electrohydraulic System

Relief Valve (Load Sensing Signal) - Test and Adjust
966H Wheel Loader and 972H
Wheel Loader Electrohydraulic System

Pilot Pressure to the Main Control Valve - Check
966H Wheel Loader and 972H
Wheel Loader Electrohydraulic System

Pilot Oil Accumulator (Dead Engine, Lift Arm Lower) - Test and Charge
966H Wheel Loader and 972H
Wheel Loader Electrohydraulic System

Disassembly and Assembly

Main Control Valve - Disassemble
966H and 972H Wheel Loaders Machine Systems

Main Control Valve - Assemble
966H and 972H Wheel Loaders Machine Systems

Main Control Valve and Mounting Plate - Remove
966H and 972H Wheel Loaders Machine Systems

Main Control Valve and Mounting Plate - Install
966H and 972H Wheel Loaders Machine Systems

Pilot Oil Accumulator (Dead Engine Lower) - Remove and Install
966H and 972H Wheel Loaders Machine Systems

Service Magazine

Correction to Testing and Adjusting , "Main Control Valve (Operator Monitor) - Calibrate" {5051, 5479}
2006/11/20

Improved Implement Pump Control {5051, 5079}
2007/03/05

A New Procedure for Adding the Third Valve Improves the Installation for the Shuttle Valve and Seals {5051, 5059, 5063}
2007/07/30

Improved Ride Control Check Valve for Medium Wheel Loaders {5051, 5067}
2008/01/07

New Procedure for Adjusting the Nut for the Tie Rod {5051}
2008/06/23

A New Margin Relief Valve Is Now Available for the Implement Control Valve on Medium Wheel Loaders {5051, 5264}
2010/06/11

Improved Solenoid Valve Group Is Now Used on Certain Machines {5132, 5264, 5479}
2010/09/30

New Relief Valve Groups Are Now Used for the Bucket Tilt on Certain Wheel Loaders {5051}
2010/12/24

A New Improved Load Sensing Signal Relief Valve For 950H Through 972H Wheel Loaders {5051, 5264}
2011/08/03

A New Torque Is Now Used for the Retainer Plug and Seal on the Implement Control Valve {5051}
2012/09/20

New Hoses Are Used on Certain Wheel Loaders {4257, 5051, 5057, 7554}
2013/11/04

Improved Tilt Line Relief Valve Is Now Used on Certain H Series, K Series, L Series, M Series, and GC Series Medium Wheel Loaders {5051, 5069, 5117}
Improved Tilt Line Relief Valve Is Now Used on Certain H Series, K Series, L Series, M Series, and GC Series Medium Wheel Loaders {5051, 5069, 5117}

Caterpillar Parts SIS Catalog 966H :

261-3945 VALVE GP-MAIN CONTROL

261-2338 VALVE GP-MAIN CONTROL

261-2337 VALVE GP-MAIN CONTROL

256-3644 VALVE GP-MAIN CONTROL

261-3972 VALVE GP-MAIN CONTROL

193-1665 VALVE GP-PRESSURE REDUCING

207-0695 VALVE GP-PUMP CONTROL

207-0697 VALVE GP-PUMP CONTROL

254-6561 VALVE GP-PUMP CONTROL

298-8919 VALVE GP-PUMP CONTROL

346-3797 VALVE GP-RELIEF

4T-7581 VALVE GP-RELIEF

Truck sale:

Caterpillar 966H
- Wheel Loaders
HOLT CAT

85,000

Caterpillar 966H, Wheel Loaders, Construction
- Wheel Loaders
BOYD CAT COMPANY

95,000

Caterpillar 966H, Wheel Loaders, Construction
- Wheel Loaders
WAGNER EQUIPMENT CO

70,000

Caterpillar 966H, Wheel Loaders, Construction
- Wheel Loaders
FINNING CHILE S.A.

322,210

Caterpillar 966H, Wheel Loaders, Construction
- Wheel Loaders
FINNING CANADA