7U2231 SUSPENSION HEIGHT VALVE (PART 1 OF 3) 1MD135 - UP AND FIELD INSTALLED D400 ARTICULATED TRUCK

SUSPENSION SYSTEM

VALVE GP

0. 7U-2231 SUSPENSION
1. 7U-2231 SUSPENSION
2. 7U-2231 SUSPENSION

ACCUMULATOR GP

3. 6U-0666 ACCUMULATO
4. 6U-0666 ACCUMULATO

CYLINDER GP

5. 6U-4385 SUSPENSION
6. 6U-4161 SUSPENSION
7. 5U-3568 SUSPENSION
8. 7U-2476 REAR SUSPE

FRAME AND BODY

CHASSIS GP

9. CHASSIS GR
0. INFORMATION

ARTICULATED TRUCK D400 ARTICULATED TRUCK 1MD
D400 ARTICULATED TRUCK(SEE MACHINE AR FOR SERIAL NO. CHART) 1MD00001-00246 (MACHINE) POWERED BY 3406B ENGINE SEBP8431 D400 1MD (1985)

SUSPENSION SYSTEM

VALVE GP

7U-0986 SUSPENSION HEIGHT VALVE

7U-2231 SUSPENSION HEIGHT VALVE

#SEBP84310250

7U-2231: SUSPENSION HEIGHT VALVE

SUSPENSION HEIGHT VALVE

7U2231 SUSPENSION HEIGHT VALVE (PART 1 OF 3)
1MD135 - UP AND FIELD INSTALLED

c926820 SEBP8431

7U2231 SUSPENSION HEIGHT VALVE Parts scheme

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Parts for your D400 ARTICULATED TRUCK:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	2U-1133	[2]	CAPSCREW
2.	2U-2509 C	[2]	WASHER
3.			1 SPOOL
4.			1 BODY
5.	2U-1134	[1]	SEAL RETAINER
6.	7U-2933	[1]	SEAL GP
7.	2U-1077	[1]	SEAL
8.	7U-2935	[3]	O-RING
9.	2U-1157	[1]	PLUG
10.	2U-1149 Z	[1]	PLUG (1st TYPE)
			OR
	7U-6414 CZ	[1]	PLUG (2nd TYPE)
11.	2U-0964	[2]	BACK-UP RING
12.	2U-1076	[1]	BACK-UP RING
13.	2U-1516	[3]	PLUG
14.	2U-0962 Z	[1]	CARTRIDGE - RELIEF V. (1st TYPE)
			OR
	7U-6410 CZ	[1]	CARTRIDGE - RELIEF V. (2nd TYPE)
15.	7U-6415 C	[1]	CAP (2nd TYPE ONLY)
16.	7U-2643	[1]	SEALING WASHER
17.	7U-2936	[1]	O-RING
18.	2U-1265	[3]	PLUG
19.	7U-2939	[3]	O-RING
20.	7U-2937	[2]	O-RING
21.	6V-0406	[3]	SEALING WASHER
22.	2U-1156	[1]	PLUG
23.	7U-2642	[1]	PLUG
24.	C	[1]	SPRING
	C		INDICATES CHANGE
	Z		1ST TYPE AND 2ND TYPE ITEMS 14

#SEBP84310251

7U-2231: SUSPENSION HEIGHT VALVE

SUSPENSION HEIGHT VALVE

7U2231 SUSPENSION HEIGHT VALVE (PART 2 OF 3)
1MD135 - UP AND FIELD INSTALLED

c926821 SEBP8431

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Parts for your D400 ARTICULATED TRUCK:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
	7U-3272	[1]	ADAPTER ASSEM, COMPRISING:
1.		[1]	ADAPTER
2.	7U-2939	[1]	O-RING
3.	2U-1080	[1]	BACK-UP RING
4.	7U-2938	[1]	O-RING
	7U-3430	[1]	CHECK VALVE ASSEM, COMPRISING:
6.	7U-2935	[1]	O-RING
7.	2U-0964	[1]	BACK-UP RING
8.	7U-2937	[1]	O-RING
9.		[1]	POPPET
10.		[1]	SPRING
11.	2U-1152	[1]	PLUG
12.	7U-2938	[1]	O-RING
			PARTS NOT INCLUDED IN 7U2231:
13.	5U-8771	[1]	LEVER ASSEM
14.	7B-7210	[2]	CLEVIS PIN
15.	4B-5270	[2]	WASHER
16.	3B-4607	[2]	COTTER PIN
			VALVE ATTACHING PARTS:
17.	4B-4278	[3]	WASHER
18.	3K-6060	[3]	NUT
19.	5B-9603	[3]	BOLT
20.	5U-8135	[3]	WASHER
21.	5U-8135	[3]	SPACER

#SEBP84310252

7U-2231: SUSPENSION HEIGHT VALVE

SUSPENSION HEIGHT VALVE

7U2231 SUSPENSION HEIGHT VALVE (PART 3 OF 3)
1MD135-UP

c926822 SEBP8431

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Parts for your D400 ARTICULATED TRUCK:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	7U-3273	[1]	SPRING ASSEMBLY,
			COMPRISING:-
2.	7U-2933	[1]	SPOOL, SEAL ASSEMBLY
3.	2U-1309	[1]	SUPPORT RING
4.	2U-1310	[1]	WASHER
5.	6U-9027	[1]	SPRING
6.		[1]	SPRING SEAT
7.		[1]	CYLINDER
8.	6U-8470	[1]	PISTON SHAFT-SHORT
9.	2U-1446	[1]	WASHER
10.		[1]	WASHER
11.	6U-9028	[1]	CYLINDER ASSEMBLY,
			COMPRISING:-
12.		[1]	O-RING
13.		[1]	SUPPORT RING
14.		[2]	O-RING
15.	6U-8469	[1]	PISTON
16.		[1]	BODY
17.		[2]	CAPSCREW
18.	7U-0985	[2]	SOLENOID VALVE,
			EACH COMPRISING:-
19.		[1]	O-RING
20.		[1]	O-RING
21.		[2]	SCREW
22.		[1]	SOLENOID
23.		[1]	SEALING WASHER
24.		[1]	ADAPTOR
25.		[1]	ELECTRICAL CONNECTOR
26.		[1]	CLIP
	7U-3274	[1]	PILOT SEAL KIT COMPRISES ITEMS 2, 12 AND 14.
	6U-9030	[1]	SOLENOID VALVE SERVICE KIT COMPRISES ITEMS 19,20,21 AND 26.

#SEBP84310253

6U-0666: ACCUMULATOR

ACCUMULATOR

6U0666 ACCUMULATOR
TO 1MD89

c926823 SEBP8431

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Parts for your D400 ARTICULATED TRUCK:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	5U-4529	[1]	CYLINDER TUBE
2.	6U-6675	[1]	END CAP
3.	6U-6674	[1]	END CAP
4.	5U-5186	[1]	PISTON
5.	5U-5784	[2]	RING
6.	2U-0238	[2]	O-RING
	6J-9354	[2]	SEAL UNIT, EACH COMPRISING:-
7.		[1]	EXPANDER RING
8.		[1]	SEAL
9.		[1]	LABEL - ACCUMULATOR TEST
			(Glue On Item)
10.	6U-5105	[1]	GUARD
11.	2U-5255	[1]	SNAP RING
12.	6U-0857	[1]	GUIDE
13.	6U-0858	[1]	POPPET
14.	4B-5273	[2]	WASHER
15.	0S-1620	[2]	SCREW
16.	5U-2638	[1]	CHARGE VALVE, EACH INCLUDING:-
17.	1H-1023	[1]	O-RING
18.	2U-0975	[1]	CORE

#SEBP84310254

6U-0666: ACCUMULATOR

ACCUMULATOR

6U0666 ACCUMULATOR
FROM 1MD90-UP

c926824 SEBP8431

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Parts for your D400 ARTICULATED TRUCK:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	5U-4529	[1]	CYLINDER TUBE
2.	6U-6675	[1]	END CAP
3.	6U-6674	[1]	END CAP
4.	9T-1440	[1]	PISTON
5.	5U-5784 N	[2]	RING
6.	2U-0238 N	[2]	O-RING
	6J-9354 N	[2]	SEAL UNIT, EACH COMPRISING:-
7.		[1]	EXPANDER UNIT
8.		[1]	SEAL
9.	7J-1627 N	[1]	WEAR RING
10.	6U-5105	[1]	GUARD
11.	2U-5255	[1]	SNAP RING
12.	6U-0857	[1]	GUIDE
13.	6U-0858	[1]	POPPET
14.	3B-4508	[2]	LOCKWASHER
15.	0S-1620	[2]	SCREW
16.	5U-2638	[1]	CHARGE VALVE, EACH INCLUDING:-
17.	1H-1023	[1]	O-RING
18.	2U-0975	[1]	CORE
	N		ITEMS INCLUDED IN SERVICE KIT

#SEBP84310255

6U-4385: SUSPENSION CYLINDER

SUSPENSION CYLINDER

6U4385 SUSPENSION CYLINDER - TRACTOR
TO 1MD69 (FOR FIELD INSTALLED GROUP SEE PAGE 121)

c926825 SEBP8431

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Parts for your D400 ARTICULATED TRUCK:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	5U-3564	[1]	TUBE ASSEMBLY
2.	5U-3570	[1]	LOCKING STRIP
3.	6U-3951	[1]	DAMPER
4.	6J-2515	[1]	SCREW
5.	5U-3567	[1]	PISTON
6.	5U-6605	[1]	GRUB SCREW
7.	6U-4069	[1]	VALVE
8.	2U-5378 N	[2]	SEAL
9.	N	[1]	PISTON RING
10.	5U-3576	[1]	ROD ASSEMBLY
11.	1J-2859 N	[1]	SEAL
12.	6U-3043 N	[1]	BACK-UP RING
13.	5U-3569	[1]	BEARING
14.	2U-5377 N	[1]	SEAL
15.	5U-3529 N	[1]	WIPER SEAL
16.	6V-5002 C	[2]	SPHERICAL BEARING
	C		INDICATES CHANGE
	N		ITEMS INCLUDED IN SERVICEKIT 5

#SEBP84310256

6U-4161: SUSPENSION CYLINDER

SUSPENSION CYLINDER

6U4161 SUSPENSION CYLINDER - TRACTOR AND TRAILER
1MD72 TO 1MD133 (TRAILER ONLY) AND 1MD70 - UP (AND FIELD INSTALLED WITH
SUSPENSION CONTROL VALVE PRESSURE RELIEF VALVE 2U0962)

c926826 SEBP8431

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Parts for your D400 ARTICULATED TRUCK:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	6U-4159	[1]	TUBE ASSEMBLY
3.	9F-2247 C	[3]	PLUG
4.		[1]	NAME PLATE
5.	6U-0954	[1]	RETAINER CLIP
6.	6U-3951	[1]	DAMPER
7.	3B-4508	[1]	LOCKWASHER
8.	9S-1366 C	[1]	SCREW
9.	6U-4162	[1]	PISTON
10.	6U-3244	[1]	GRUB SCREW
11.	6U-3935	[1]	VALVE RING
12.	6U-3934	[1]	CUSHION RING
13.	5U-3532 N	[2]	SEAL
14.	6U-4154 N	[1]	WEAR RING
15.	5H-6734 N	[1]	O-RING
16.	6U-5640 CN	[1]	BACK-UP RING
17.	7U-1775 C	[1]	ROD END CAP
18.	6U-3242 N	[1]	WIPER SEAL
19.	6U-4156	[1]	ROD ASSEMBLY
20.	6V-5002 C	[2]	BEARING
21.	7U-3321 C	[4]	SNAP RING
22.	2J-3961 CN	[1]	BACK-UP RING:-
			(TRACTOR ONLY FROM 1MD200-UP)
	C		INDICATES CHANGE
	N		ITEMS INCLUDED IN 7U1708 SEAL

#SEBP84310257

5U-3568: SUSPENSION CYLINDER

SUSPENSION CYLINDER

5U3568 SUSPENSION CYLINDER - TRAILER
TO 1MD71

c926827 SEBP8431

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Parts for your D400 ARTICULATED TRUCK:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	5U-3578	[1]	TUBE ASSEMBLY
2.	5U-3570	[1]	LOCKING STRIP
3.	5U-3565	[1]	DAMPER
4.	6J-2515	[1]	SCREW
5.	5U-3567	[1]	PISTON
6.	5U-6605	[1]	GRUB SCREW
7.	5U-3566	[1]	VALVE
8.	2U-5378 N	[2]	SEAL
9.	5U-3531 N	[1]	PISTON RING
10.	5U-3577	[1]	ROD ASSEMBLY
11.	1J-2859 N	[1]	SEAL
12.	6U-3043 N	[1]	BACK-UP RING
13.	5U-3569	[1]	BEARING
14.	5U-3530 N	[1]	SEAL
15.	2U-5377 N	[1]	WIPER SEAL
16.	6V-5002 C	[2]	SPHERICAL BEARING
17.	7U-3321 C	[4]	CIRCLIP
	C		INDICATES CHANGE
	N		ITEMS INCLUDED IN SERVICEKIT 5

#SEBP84310258

7U-2476: REAR SUSPENSION CYLINDER GROUP

REAR SUSPENSION CYLINDER GROUP

7U2476 REAR SUSPENSION CYLINDER GROUP
1MD134-UP (TRAILER ONLY)

c926828 SEBP8431

7U2476 REAR SUSPENSION CYLINDER GROUP Parts scheme

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Parts for your D400 ARTICULATED TRUCK:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	6U-4159 C	[1]	TUBE
2.	7U-1385	[1]	ROD
3.	6U-4162	[1]	PISTON
4.	5U-3532 J	[1]	SEAL
5.	6U-4154 J	[1]	WEAR RING
6.	5H-6734 J	[1]	O RING
7.	6U-5640 J	[1]	BACK UP RING
8.	6U-0954	[1]	RETAINER
9.	6U-3244	[1]	GRUB SCREW
10.	6V-5002	[1]	BEARING
11.	2W-1145	[2]	SNAP RING
12.	6V-5003	[1]	BEARING
13.	2U-0385	[2]	SNAP RING
14.	7U-1775	[1]	END CAP
15.	6U-3242 J	[1]	WIPER SEAL
16.	6U-3951	[1]	DAMPER
17.	9S-1366 C	[1]	BOLT
18.	6U-3934	[1]	CUSHION RING
19.	6U-3935	[1]	VALVE RING
20.	3B-4508	[1]	WASHER
21.	9F-2247	[1]	PLUG
	F	[1]	NAMEPLATE
22.	2J-3961 C	[1]	BACK - UP RING:-(FROM 1MD202 - UP)
	C		INDICATES CHANGE
	J		ITEMS INCLUDED IN SEAL KIT 7U2
	F		NOT SHOWN

#SEBP84310259

CHASSIS GROUP - TRACTOR

CHASSIS GROUP - TRACTOR
TO-1MD133

c926829 SEBP8431

None CHASSIS GROUP - TRACTOR Parts scheme

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Parts for your D400 ARTICULATED TRUCK:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	5U-7500	[1]	FRONT CHASSIS ASSMEBLY
2.	5U-1305	[1]	SUMP GUARD
3.	1A-1135	[4]	BOLT
4.	3B-4510	[4]	LOCKWASHER
5.	4B-5275	[4]	LOCKWASHER
8.	3B-4512	[5]	LOCKWASHER
10.	5U-1387	[4]	FOOTSTEP RETAINER (460MM)
			OR
	6U-7619 C	[4]	FOOTSTEP RETAINER (595MM)
11.	5U-0641	[2]	FOOTSTEP PLATE
12.	1K-6872	[4]	NUT SELF LOCKING
13.	5U-2870	[1]	ACCESS PANEL
14.	3B-4505	[2]	LOCKWASHER
15.	0S-1617	[2]	BOLT
16.	5U-9410	[1]	MUDGUARD SUPPORT-LH
17.	5U-9411	[1]	MUDGUARD SUPPORT-RH
18.	5U-1387	[4]	FOOTSTEP RETAINER
19.	7U-1856 C	[2]	FOOTSTEP PLATE
20.	1K-6872	[8]	NUT SELF LOCKING
21.	0S-1566	[4]	BOLT
22.	3K-2889	[4]	NUT SELF LOCKING
23.	5U-7349	[4]	SHIM
24.	5U-6181	[2]	STEER STOP PAD
25.	4D-3704	[4]	WASHER
26.	0S-1566	[4]	BOLT
27.	5U-7351	[2]	BACKING PLATE
	C		INDICATES CHANGE
	N		SEE TABLE