8J4356 PILOT VALVE GROUP Part of 3G3818 Pilot and Speed Control Valve Group shown on Page 205 225 EXCAVATOR

HYDRAULIC SYSTEM

VALVE GP-PILOT

0. 8J-4356 VALVE GP-P

VALVE GP-CHECK & RELIEF

1. 4T-5689 VALVE GP-C

VALVE GP-PILOT

2. 9T-2630 VALVE GP-P

VALVE GP-CHECK & RELIEF

3. 3G-3279 VALVE GP-C

VALVE GP-PILOT

4. 4T-9895 VALVE GP-P

MISCELLANEOUS INFORMATION

5. 6W-3968 SERVICE GP
6. 6W-3968 SERVICE GP

LINES GP-HYDRAULIC

7. 7V-4385 LINES GP-C
8. 7V-4385 LINES GP-C
9. 9V-8328 LINES GP-C
0. INFORMATION

EXCAVATOR 225 EXCAVATOR 76U
225 EXCAVATOR 76U03765-UP (MACHINE) POWERED BY 3304 ENGINE HEBP1440 225 76U (1972)

HYDRAULIC SYSTEM

VALVE GP-PILOT

9J-0387 VALVE GP-PILOT

3G-4063 VALVE GP-PILOT

4T-9980 VALVE GP-PILOT

3G-7575 VALVE GP-PILOT

1U-4046 VALVE GP-PILOT

8J-4356 VALVE GP-PILOT

9T-2630 VALVE GP-PILOT

4T-9895 VALVE GP-PILOT

#HEBP14400540

8J-4356: VALVE GP-PILOT

VALVE GP-PILOT

8J4356 PILOT VALVE GROUP
Part of 3G3818 Pilot and Speed Control Valve Group shown on Page 205

c228931 HEBP1440

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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	5P-2547	[1]	BOLT
2.	1A-4790	[1]	WASHER 1.67 cm(.656 in.)thick
3.	5B-2113	[1]	BEARING
4.	8J-4493	[1]	SHAFT
5.	1U-0371	[1]	LEVER
	1B-8702	[2]	KEY
6.	8J-4484	[4]	RETAINER
7.	8J-4482	[2]	RETAINER
8.	8J-4481	[2]	SPRING (Outer)
9.	4D-3107	[2]	SEAL
10.	0L-1351 C	[14]	BOLT
11.	8J-4494	[1]	COVER
12.	8J-4480	[2]	SPRING (Inner)
13.	4D-0514 C	[2]	PLUG
14.	3G-5967 C	[1]	VALVE GROUP
15.	7J-7673	[1]	SEAL
16.	1F-4503	[1]	BEARING
17.	8J-4490	[1]	GASKET
18.	8J-4489	[1]	COVER
19.	6H-0190	[1]	WASHER 1.98 cm(.781 in.)thick
20.	5P-3108 C	[1]	SEAL
	C		INDICATES CHANGE

#HEBP14400541

4T-5689: VALVE GP-CHECK & RELIEF

VALVE GP-CHECK & RELIEF

4T5689 CHECK AND RELIEF VALVE GROUP
4T5178-Page 222.02
Part Of 9V8313 & 9V9370 Pressure Control, 9V8328, 6W2480
Lines-Check Valve, 3V1868 Front Lines & 6W8713 Lines

c318735 HEBP1440

4T5689 VALVE GP-CHECK & RELIEF Parts scheme

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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	8J-6307	[1]	PLUG-O-RING
2.	2S-4078	[1]	SEAL-O-RING
3.	9J-0388	[1]	RETAINER
4.	3J-9745	[1]	SPRING
5.	4T-2636	[1]	VALVE GP
6.	8J-6308	[1]	VALVE-CHECK
7.	4T-5178 Y	[1]	VALVE GP-RELIEF
8.	9S-8008	[1]	PLUG-O-RING
9.	3D-2824	[1]	SEAL-O-RING
10.		[1]	PLATE-IDENTIFICATION
	4B-4158	[1]	SCREW
	Y		SEPARATE ILLUSTRATION

#HEBP14400542

9T-2630: VALVE GP-PILOT

VALVE GP-PILOT

9T2630 PILOT VALVE GROUP
Serial No. 76U5158-Up
Part Of 8V8315 Pilot Operated Hydraulic Control

c338688 HEBP1440

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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	9T-2836	[1]	HOUSING
2.	213-3574	[1]	PLATE
3.	9T-2632	[1]	ADAPTER
4.	208-5472	[1]	KIT-PILOT VALVE (CONNECTOR JOINT)
			(INCLUDES PLATE & JOINT)
			AVAILABLE REPAIR KIT(S):
	4T-9983	[1]	KIT-POPPET (PORT #2)
			(INCLUDES POPPET, SEALS, & GUIDE)
	4T-9984	[1]	KIT-POPPET (PORT # 1, 3, & 4)
			(INCLUDES POPPET, SEALS, & GUIDE)
	9T-2633	[1]	KIT-SEAL (POPPET AS)
			(INCLUDES SEALS)
	9T-2837	[1]	KIT-SEAL (LOWER SECTION)
			(INCLUDES PINS, O-RINGS, & BOLT)
	237-6294 H	[3]	KIT-VALVE REPAIR
			(INCLUDES RETAINERS, SHIMS, SPRING)
	242-0812 J	[1]	REGULATING KIT
			(INCLUDES RETAINERS, SHIMS, SPRING)
	H		FOR PORTS 1, 3, & 4
	J		FOR PORT 2

#HEBP14400543

3G-3279: VALVE GP-CHECK & RELIEF

VALVE GP-CHECK & RELIEF

3G3279 CHECK AND RELIEF VALVE GROUP
8J6798-Page 157
Part Of 7V4385 Check Valve Lines And 3V1868 Front Lines

c180159 HEBP1440

3G3279 VALVE GP-CHECK & RELIEF Parts scheme

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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	8J-6310	[1]	VALVE GROUP
			(Includes)
2.	8J-6308		VALVE
3.	8J-6798 CY	[1]	VALVE GROUP
			(Separate Illustration)
4.	7M-8485	[1]	SEAL
5.	5F-5835	[1]	SPRING
6.	8J-0324	[1]	PLUG
7.	8J-6307	[1]	PLUG
8.	2S-4078	[1]	SEAL
9.	3J-9745	[1]	SPRING
10.	9J-0388	[1]	RETAINER
	C		INDICATES CHANGE
	Y		SEPARATE ILLUSTRATION

#HEBP14400544

4T-9895: VALVE GP-PILOT

VALVE GP-PILOT

4T9895 PILOT VALVE GROUP
Serial No. 76V3765 To 76U5157 Inclusive
Part Of 6W3968 Pilot Valves Service And 8V8315 Pilot Operated
Hydraulic Control

c317861 HEBP1440

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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	009-2061	[1]	SEAL
2.	8T-0116	[1]	SEAL-O-RING
3.	8T-0117	[1]	SEAL-O-RING
4.	4T-9982	[1]	JOINT (UNIVERSAL)

			THE FOLLOWING REPAIR KITS ARE AVAILABLE:

	4T-9983	[1]	KIT (POPPET) (PORT 2)
	4T-9984	[1]	KIT (POPPET) (PORT 1, 3, OR 4)
			(EACH KIT INCLUDES POPPET, SEALS, & GUIDE)

#HEBP14400545

6W-3968: SERVICE GP

SERVICE GP

6W3968 PILOT VALVES SERVICE GROUP--PART 1 OF 2-FIELD INSTALLATION
Serial No. 76V3765 To 76V4519 Inclusive

HEBP14400545 HEBP1440

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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS

Part No	Qty	Parts name
4T-9895 Y	[2]	PILOT VALVE GROUP
9V-8312	[1]	SUPPORT ASSEMBLY LEFT
4H-4063	[1]	PIN
6K-2198	[1]	BOSS
3Y-7829	[1]	BOSS
9V-8304	[1]	SUPPORT ASSEMBLY RIGHT
6K-2198	[1]	BOSS
5M-2894	[4]	WASHER
0L-1351	[4]	BOLT
9V-9311	[1]	TUBE GRAB IRON
4V-6981	[16]	SCREW
9V-8302	[1]	COVER LEFT
9V-8303	[1]	COVER RIGHT
9V-8832	[1]	PANEL LEFT
9V-8834	[1]	PANEL LEFT
9V-8833	[1]	PAN LEFT
9V-8835	[1]	PAN RIGHT
3V-4694	[3]	PLUG
5V-8321	[1]	TAB
	[1]	SCREW
9F-8125	[1]	LOCKWASHER
6V-9761	[1]	FILM LEFT CONSOLE
6V-9753	[1]	FILM LEFT CONSOLE
6V-9754	[1]	FILM RIGHT CONSOLE
6V-9764	[1]	FILM RIGHT CONSOLE
6V-9813	[1]	FILM LEFT CONSOLE
8T-0213	[1]	FILM
3B-1163	[2]	WASHER
9V-9343	[1]	LEVER ASSEMBLY
5M-8500	[1]	KNOB
9V-9371	[2]	SPACER
Y		SEPARATE ILLUSTRATION

#HEBP14400546

6W-3968: SERVICE GP

SERVICE GP

6W3968 PILOT VALVES SERVICE GROUP--PART 2 OF 2--FIELD INSTALLATION
Serial No. 76V3765 To 76V4519 Inclusive

HEBP14400546 HEBP1440

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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS

Part No	Qty	Parts name
1B-4330	[10]	NUT
0S-1616	[2]	BOLT
2R-6806	[7]	CONNECTOR
1P-1376	[5]	CONNECTOR
3J-1907	[12]	SEAL
2V-8572	[6]	HOSE ASSEMBLY
030-8144	[4]	REDUCER
1P-1441	[4]	NUT
8S-4950	[5]	CAP
9V-7833	[2]	ROD
1D-5118	[4]	NUT
0S-1615	[8]	BOLT
5P-0537	[17]	WASHER
9V-8857	[2]	BOOT
9V-8339	[1]	LEVER ASSEMBLY
2K-6194	[1]	PIN
9V-9840	[1]	STRIP
5P-8245	[1]	WASHER
9M-1974	[1]	WASHER
3B-4610	[1]	COTTER
3B-4617	[1]	COTTER
1B-4201	[1]	NUT
7K-1181	[6]	STRAP
8J-0352	[1]	SPRING
6V-9765	[1]	FILM
8T-1090	[1]	FILM
8T-1089	[1]	FILM
6V-9815	[1]	FILM
6V-9856	[1]	FILM

#HEBP14400547

7V-4385: LINES GP-CHECK VALVE

LINES GP-CHECK VALVE

7V4385 CHECK VALVE LINES GROUP--Part 1 of 2
9J387 Valve parts are shown on Page 184

c311801 HEBP1440

7V4385 LINES GP-CHECK VALVE Parts scheme

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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	8M-0547	[1]	ELBOW
2.	4S-4869	[1]	TEE
3.	3K-0360	[4]	SEAL-O-RING
4.	030-7947	[1]	ELBOW
5.	3J-1907	[3]	SEAL
6.	5P-1404	[1]	ADAPTER-O-RING
	2M-9780	[1]	SEAL-O-RING
7.	9J-0387	[1]	VALVE GP-PILOT
8.	5P-8874	[1]	ADAPTER
9.	030-7948	[3]	ELBOW
10.	0L-1143 Y	[3]	BOLT
	1D-4717	[3]	NUT
	5P-1075	[3]	WASHER-HARD
11.	6M-6853	[1]	TEE-O-RING
12.	7V-7003	[1]	TUBE AS
13.	1P-3705	[2]	SEAL
14.	2B-0947	[8]	BOLT
15.	7V-7006	[1]	HOSE AS
16.	7V-7007	[1]	HOSE AS
17.	7V-7005	[1]	HOSE AS
18.	6D-4636	[1]	CLIP
19.	5P-5777	[1]	ADAPTER-O-RING
	7M-8485	[1]	SEAL-O-RING
	Y		SEPARATE ILLUSTRATION

#HEBP14400548

7V-4385: LINES GP-CHECK VALVE

LINES GP-CHECK VALVE

7V4385 CHECK VALVE LINES GROUP--Part 2 of 2
3G3279 Valve parts are shown on Page 207

c311802 HEBP1440

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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	9S-8927	[1]	PLUG
	3J-1907	[1]	SEAL
2.	0V-0375	[4]	BOLT
3.	1P-3705	[1]	SEAL
4.	8K-2574	[1]	PLATE-CONNECTOR
5.	3V-9719	[1]	ADAPTER
	1P-3704	[2]	SEAL-RECTANGULAR
6.	9M-6590	[4]	BOLT-12 POINT HEAD
7.	030-7944	[1]	ELBOW
8.	7V-7004	[1]	HOSE AS
9.	7V-7008	[1]	TUBE AS
	6V-0423	[1]	PLUG
10.	3G-3279	[1]	VALVE GP-CHECK
11.	2P-7211	[1]	TEE
12.	3D-2824	[2]	SEAL-O-RING
13.	4S-4455 Y	[1]	CLIP
			VALVE LINES CONVERSION
			GROUP)
	Y		SEPARATE ILLUSTRATION

#HEBP14400549

9V-8328: LINES GP-CHECK VALVE

LINES GP-CHECK VALVE

9V8328 LINES GP-CHECK VALVE-FIELD INSTALLATION
S/N 76U3765-4519
9J0387-Page 184, 4T5689-Page 206.02
For Use With Backhoe Bucket

c332817 HEBP1440

9V8328 LINES GP-CHECK VALVE Parts scheme

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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	061-9258	[1]	TEE
2.	2R-6806	[1]	CONNECTOR
3.	9V-8317	[1]	TUBE AS
4.	9V-8327	[1]	TUBE AS
5.	030-7942	[1]	ELBOW
6.	9V-8325	[1]	HOSE AS
7.	8J-4645	[1]	PLUG-O-RING
8.	7M-8485	[1]	SEAL-O-RING
9.	7J-7853	[1]	VALVE (MAKE-UP)
10.	7J-7852	[1]	SPRING
11.	9V-8324	[1]	TUBE AS
	6V-8636	[2]	CONNECTOR
	6V-8397	[2]	SEAL-O-RING 9.25MM(.364IN.)I.D.
12.	3J-1907 C	[5]	SEAL 11.89MM(.468IN.)I.D.
13.	9V-8323	[1]	TUBE AS
14.	030-7948	[1]	ELBOW
15.	3K-0360	[2]	SEAL-O-RING
16.	9J-0387 Y	[1]	VALVE GP-PILOT (STICK VENT)
17.	0L-1143	[3]	BOLT
	1D-4717	[3]	NUT
	5M-2894	[3]	WASHER
18.	9V-8319	[1]	TUBE AS
19.	4S-4869	[1]	TEE
20.	5P-6719	[1]	PLUG
21.	8V-7386 C	[1]	HOSE AS
22.	2B-0947	[12]	BOLT
23.	1P-3705	[3]	SEAL
24.	030-7950	[1]	ELBOW
25.	3D-2824	[2]	SEAL-O-RING
26.	9V-8321	[1]	TUBE AS
27.	9S-7739	[1]	UNION-FLARED
28.	2P-7211	[1]	TEE
29.	9V-8322	[1]	TUBE AS
30.	4T-5689 Y	[1]	VALVE GP-CHECK & RELIEF
			(CHECK & RELIEF)
31.	6F-5282	[3]	BOLT
32.	1D-4719	[5]	NUT
	5P-8245	[5]	WASHER
33.	9V-8314	[1]	BRACKET AS
34.	0S-1595	[2]	BOLT
	C		CHANGE FROM PREVIOUS TYPE
	Y		SEPARATE ILLUSTRATION