125-4181 HOUSING GP-SWING S/N 6TL1-409 PART OF 120-4712 DRIVE GP-SWING M312 EXCAVATOR

HYDRAULIC SYSTEM

DRIVE GP

0. 125-4181 HOUSING GP

HYDRAULIC GP

1. 123-9731 HYDRAULIC
2. 123-9733 HYDRAULIC

LINES GP-AUXILIARY

3. 118-7682 LINES GP-A
4. 118-7684 LINES GP-A
5. 118-7711 LINES GP-A
6. 118-7715 LINES GP-A
7. 118-7717 LINES GP-A
8. 118-7721 LINES GP-A
9. 126-8812 LINES GP-A
0. INFORMATION

EXCAVATOR M312 EXCAVATOR 6TL
M312 Excavator 6TL00001-00409 (MACHINE) POWERED BY 3054 Engine SEBP2433 M312 6TL (1988)

HYDRAULIC SYSTEM

DRIVE GP

117-7985 DRIVE GP-SWING

120-4712 DRIVE GP-SWING

120-4714 DRIVE GP-SWING

125-4181 HOUSING GP-SWING

#SEBP24330270

125-4181: HOUSING GP-SWING

HOUSING GP-SWING

125-4181 HOUSING GP-SWING
S/N 6TL1-409
PART OF 120-4712 DRIVE GP-SWING

i00521832 SEBP2433

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Parts for your M312 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	125-4220	[1]	SHAFT
2.	125-4222	[1]	WASHER
3.	125-4223	[1]	RING
4.	8U-2520	[1]	BEARING
5.	125-4225	[1]	HOUSING
6.	5W-7412	[1]	MAGNET
7.	125-4226	[1]	RING
8.	125-4227	[1]	BEARING
9.	125-4228	[1]	RING
10.	125-4230	[1]	NUT

#SEBP24330271

123-9731: HYDRAULIC AR

HYDRAULIC AR

123-9731 HYDRAULIC AR
S/N 6TL1-409
PART OF 117-7934 GENERAL AR

i00516084 SEBP2433

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Parts for your M312 EXCAVATOR:

CATERPILLAR SIS

Part No	Qty	Parts name
120-0306 Y	[1]	CYLINDER & MTG GP-AXLE LOCK
120-0305 Y	[1]	LINES GP-HYDRAULIC
123-9732 Y	[1]	LINES GP-HYDRAULIC
125-6568 Y	[1]	LINES GP-HYDRAULIC
126-6758 Y	[1]	SWIVEL & MOUNTING GP
Y		SEPARATE ILLUSTRATION

#SEBP24330272

123-9733: HYDRAULIC AR-UPPER

HYDRAULIC AR-UPPER

123-9733 HYDRAULIC AR-UPPER
S/N 6TL1-409
PART OF 117-7934 GENERAL AR

i00516087 SEBP2433

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Parts for your M312 EXCAVATOR:

CATERPILLAR SIS

Part No	Qty	Parts name
123-9735 Y	[1]	COUPLING GP-PUMP
117-8021 Y	[1]	LINES GP-FRONT
117-8019 Y	[1]	LINES GP-HYDRAULIC
122-1548 Y	[1]	LINES GP-LOAD CONTROL VALVE (BOOM)
123-9739 Y	[1]	LINES GP-PILOT
123-9743 Y	[1]	LINES GP-PILOT
123-9745 Y	[1]	LINES GP-PILOT
132-3773 Y	[1]	LINES GP-PILOT
125-3489 Y	[1]	LINES GP-PRESSURE TEST
132-3772 Y	[1]	LINES GP-PUMP
123-9738 Y	[1]	LINES GP-RETURN
123-9741 Y	[1]	LINES GP-STEERING
132-4275 Y	[1]	LINES GP-SWING DRIVE
117-8023 Y	[1]	PUMP & MTG GP-MAIN HYDRAULIC
117-8030 Y	[1]	PUMP & MTG GP-STEERING & BRAKE
117-8010 Y	[1]	TANK & MTG GP-HYDRAULIC
123-8817 Y	[1]	VALVE & MTG GP-MAIN CONTROL
Y		SEPARATE ILLUSTRATION

#SEBP24330273

118-7682: LINES GP-AUXILIARY HYDRAULIC

LINES GP-AUXILIARY HYDRAULIC

118-7682 LINES GP-AUXILIARY HYDRAULIC
S/N 6TL1-409
HAMMER FUNCTION, ONE PIECE BOOM
PART OF 123-9474, 123-9484 VALVE & LINES GP-AUXILIARY
AN ATTACHMENT

i00487238 SEBP2433

1187682 LINES GP-AUXILIARY HYDRAULIC Parts scheme

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Parts for your M312 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	122-3587	[1]	TUBE AS
2.	122-3588	[1]	TUBE AS
3.	114-8907	[16]	CLAMP

#SEBP24330274

118-7684: LINES GP-AUXILIARY HYDRAULIC

LINES GP-AUXILIARY HYDRAULIC

118-7684 LINES GP-AUXILIARY HYDRAULIC
S/N 6TL1-409
HAMMER FUNCTION, VA BOOM
PART OF 123-9479, 123-9482 VALVE & LINES GP-AUXILIARY
AN ATTACHMENT

i00487244 SEBP2433

1187684 LINES GP-AUXILIARY HYDRAULIC Parts scheme

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Parts for your M312 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	8U-0284	[4]	FLANGE-HALF
2.	8U-0311	[4]	FLANGE-HALF
3.	115-4426	[1]	TUBE AS
4.	124-2521	[1]	TUBE AS
5.	124-2522	[1]	TUBE AS
6.	124-9266 I	[1]	HOSE AS
7.	124-9267 I	[1]	HOSE AS
8.	125-2501	[1]	TUBE AS
9.	105-3478 M	[8]	BOLT-SOCKET HEAD (M10X1.5X35-MM)
10.	113-2004 M	[8]	BOLT-SOCKET HEAD (M12X1.75X45-MM)
11.	114-8907	[16]	CLAMP
12.	4J-0520	[2]	SEAL-O-RING
13.	4J-0522	[2]	SEAL-O-RING
	I		REFER TO HYDRAULIC INFORMATION SYSTEM
	M		METRIC PART

#SEBP24330275

118-7711: LINES GP-AUXILIARY HYDRAULIC

LINES GP-AUXILIARY HYDRAULIC

118-7711 LINES GP-AUXILIARY HYDRAULIC
S/N 6TL1-409
HIGH PRESSURE FUNCTION, ONE PIECE BOOM
PART OF 123-9478, 123-9484 VALVE & LINES GP-AUXILIARY
AN ATTACHMENT

i00487286 SEBP2433

1187711 LINES GP-AUXILIARY HYDRAULIC Parts scheme

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Parts for your M312 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	5W-9857	[4]	FLANGE-HALF
2.	120-9767	[8]	BLOCK
3.	122-3591	[1]	TUBE AS
4.	122-3593	[1]	TUBE AS
5.	124-2516	[1]	TUBE AS
6.	124-2517	[1]	TUBE AS
7.	095-0658 M	[16]	BOLT-SOCKET HEAD (M10X1.5X70-MM)
8.	105-3478 M	[8]	BOLT-SOCKET HEAD (M10X1.5X35-MM)
9.	116-3157	[4]	CLAMP
10.	120-9811	[16]	CLAMP
11.	4J-5267	[2]	SEAL-O-RING
	M		METRIC PART

#SEBP24330276

118-7715: LINES GP-AUXILIARY HYDRAULIC

LINES GP-AUXILIARY HYDRAULIC

118-7715 LINES GP-AUXILIARY HYDRAULIC
S/N 6TL1-409
ONE PIECE BOOM, MEDIUM PRESSURE FUNCTION
PART OF 138-3364 CONTROL AR-AUXILIARY, 123-9486 VALVE & LINES AR-AUXILIARY
AN ATTACHMENT

i00487294 SEBP2433

1187715 LINES GP-AUXILIARY HYDRAULIC Parts scheme

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Parts for your M312 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	114-9324	[8]	CLAMP-SINGLE
2.	122-3589	[1]	TUBE AS
3.	122-3590	[1]	TUBE AS
4.	122-3592	[2]	TUBE AS
5.	120-9041	[4]	CLAMP
6.	6V-8398	[4]	SEAL-O-RING
7.	6V-8731	[2]	UNION
8.	8T-4133 M	[4]	NUT (M10X1.5-THD)
9.	8T-8894 M	[4]	BOLT-SOCKET HEAD (M10X1.5X20-MM)
	M		METRIC PART

#SEBP24330277

118-7717: LINES GP-AUXILIARY HYDRAULIC

LINES GP-AUXILIARY HYDRAULIC

118-7717 LINES GP-AUXILIARY HYDRAULIC
S/N 6TL1-409
HIGH PRESSURE FUNCTION, VA BOOM
PART OF 123-9481, 123-9482 VALVE & LINES GP-AUXILIARY
AN ATTACHMENT

i00487302 SEBP2433

1187717 LINES GP-AUXILIARY HYDRAULIC Parts scheme

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Parts for your M312 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	5W-9857	[8]	FLANGE-HALF
2.	116-7286	[4]	CLAMP-SINGLE
3.	117-7742	[4]	PLATE AS
	8U-1242	[1]	PLATE
4.	117-7744	[4]	BLOCK
5.	120-9244	[1]	TUBE AS
6.	120-9245	[1]	TUBE AS
7.	124-9268 I	[2]	HOSE AS
8.	125-4075	[1]	TUBE AS
9.	125-4076	[1]	TUBE AS
10.	105-3478 M	[16]	BOLT-SOCKET HEAD (M10X1.5X35-MM)
11.	116-3157	[12]	CLAMP
12.	4J-5267	[4]	SEAL-O-RING
13.	8T-1160 M	[8]	BOLT-SOCKET HEAD (M10X1.5X50-MM)
14.	8T-4133 M	[8]	NUT (M10X1.5-THD)
15.	8T-4957 M	[8]	BOLT-SOCKET HEAD (M10X1.5X30-MM)
	I		REFER TO HYDRAULIC INFORMATION SYSTEM
	M		METRIC PART

#SEBP24330278

118-7721: LINES GP-AUXILIARY HYDRAULIC

LINES GP-AUXILIARY HYDRAULIC

118-7721 LINES GP-AUXILIARY HYDRAULIC
S/N 6TL1-409
VA BOOM, MEDIUM PRESSURE FUNCTION
PART OF 138-3365 CONTROL AR-AUXILIARY, 123-9488 VALVE & LINES AR-AUXILIARY
AN ATTACHMENT

i00487309 SEBP2433

1187721 LINES GP-AUXILIARY HYDRAULIC Parts scheme

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Parts for your M312 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	114-9324	[10]	CLAMP-SINGLE
2.	115-7992 I	[2]	HOSE AS
3.	116-5217	[2]	TUBE AS
4.	121-9734	[1]	PLATE AS
5.	125-0606	[1]	TUBE AS
6.	125-0607	[1]	TUBE AS
7.	120-9041	[4]	CLAMP
8.	6V-8398	[8]	SEAL-O-RING
9.	6V-8731	[4]	UNION
10.	8T-4133 M	[4]	NUT (M10X1.5-THD)
11.	8T-4957 M	[4]	BOLT-SOCKET HEAD (M10X1.5X30-MM)
12.	8T-8894 M	[2]	BOLT-SOCKET HEAD (M10X1.5X20-MM)
	I		REFER TO HYDRAULIC INFORMATION SYSTEM
	M		METRIC PART

#SEBP24330279

126-8812: LINES GP-AUXILIARY HYDRAULIC

LINES GP-AUXILIARY HYDRAULIC

126-8812 LINES GP-AUXILIARY HYDRAULIC
S/N 6TL1-409
ONE PIECE BOOM
PART OF 138-3364 CONTROL AR-AUXILIARY
AN ATTACHMENT

i00643427 SEBP2433

1268812 LINES GP-AUXILIARY HYDRAULIC Parts scheme

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Parts for your M312 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	131-1335	[1]	PLATE
2.	136-6877	[2]	PLATE
3.	136-8489	[3]	PLATE
4.	137-6375 I	[2]	HOSE AS
5.	096-0061 B	[10]	STRAP-CABLE
6.	6V-8398	[8]	SEAL-O-RING
7.	6V-8988	[2]	ELBOW
8.	6V-8995	[2]	UNION (STRAIGHT)
9.	6V-9169	[4]	NUT (13/16-16-THD)
10.	6V-9830	[2]	CAP
11.	8T-2223 M	[6]	BOLT-SOCKET HEAD (M10X1.5X45-MM)
	B		USE AS REQUIRED
	I		REFER TO HYDRAULIC INFORMATION SYSTEM
	M		METRIC PART