Hydraulic System Modifications To Install A Ripper Anti-Drift Control Kit On Certain D6R Series III and D6T Track-Type Tractor {5050, 5057, 5352, 5356} Caterpillar

Hydraulic System Modifications To Install A Ripper Anti-Drift Control Kit On Certain D6R Series III and D6T Track-Type Tractor {5050, 5057, 5352, 5356}

Usage:

D6T DJG

Track-Type Tractor: D6R Series III (S/N: GJB1-UP; WCB1-UP; HDC1-UP; RFC1-UP; TBC1-UP; HCD1-UP; HKE1-UP; WRG1-UP; MTJ1-UP; DMK1-UP; JEK1-UP; EXL1-UP; JDL1-UP; DLM1-UP; LFM1-UP; LGP1-UP; DPS1-UP; GMT1-UP; MRT1-UP); D6T (S/N: JHB1-UP; ZEB1-UP; SMC1-UP; JWD1-UP; LBD1-UP; LAE1-UP; DJG1-UP; WCG1-UP; WFH1-UP; LKJ1-UP; SNK1-UP; KJL1-UP; SKL1-UP; GCT1-UP; RLW1-UP; LAY1-UP; PEZ1-UP)

Introduction

D6R Series III and D6T Track-Type Tractors equipped with a ripper may experience undesirable ripper drift. This instruction provides a hydraulic circuit rework procedure incorporating a lock valve to eliminate ripper cylinder drift. In most cases, ripper drift is within specifications. If the drift exceeds specifications, appropriate system troubleshooting should be performed before performing this procedure.

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Do not attempt to assemble this machine until you read and you understand the assembly instructions.

Improper assembly procedures could result in injury or death.

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NOTICE

Do not allow any dirt or foreign material to get into the hydraulic system during assembly, connection of lines, when components are filled with fluid, or during any maintenance operation.

Note: Do not coat any fasteners with grease or special lubricants prior to tightening. A light oil may be used. Instructions are given when lubrication is required.

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NOTICE

Maintain the oil in the hydraulic system at the correct level to prevent pump cavitation.

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NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat^® products. Dispose of all fluids according to local regulations and mandates.

Required Parts

Note: Kits do not include hose assemblies. Hoses shown in sections "Standard Configuration Hose Assembly" and "VPAT Configuration Hose Assembly" must be made by the dealer with the couplings provided in the kit.

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Table 1
Model Prefix	Machine Configuration	Part Number
Machines Not Equipped with Fuel Tank Guards
D6R Series III S/N:GJB, ; S/N:TBC, ; S/N:HCD, ; S/N:WRG, ; S/N:DMK, ; S/N:JEK, ; S/N:EXL, ; S/N:JDL, ; S/N:LFM, ; S/N:LGP, ; S/N:DPS, ; S/N:GMT, ; S/N:MRT	Standard	386-2386 Retrofit Kit ⁽¹⁾
D6T S/N:JHB, ; S/N:LAY, ; S/N:SKL, ; S/N:KJL	Standard	386-2386 Retrofit Kit ⁽¹⁾
D6R Series III S/N:WCB, ; S/N:HDC, ; S/N:RFC, ; S/N:HKE, ; S/N:MTJ, ; S/N:DLM	VPAT	386-2387 Retrofit Kit ⁽²⁾
D6T S/N:WFH, ; S/N:DJG, ; S/N:WCG, ; S/N:ZEB, ; S/N:RLW, ; S/N:JWD	VPAT	386-2387 Retrofit Kit ⁽²⁾
Machines If Equipped With Fuel Tank Guards
D6R Series III S/N:GJB, ; S/N:TBC, ; S/N:HCD, ; S/N:WRG, ; S/N:DMK, ; S/N:JEK, ; S/N:EXL, ; S/N:JDL, ; S/N:LFM, ; S/N:LGP, ; S/N:DPS, ; S/N:GMT, ; S/N:MRT	Standard	384-0462 Retrofit Kit ⁽¹⁾
D6T S/N:JHB, ; S/N:LAY, ; S/N:SKL, ; S/N:KJL	Standard	384-0462 Retrofit Kit ⁽²⁾
D6R Series III S/N:WCB, ; S/N:HDC, ; S/N:RFC, ; S/N:HKE, ; S/N:MTJ, ; S/N:DLM	VPAT	386-0461 Retrofit Kit ⁽²⁾
D6T S/N:WFH, ; S/N:DJG, ; S/N:WCG, ; S/N:ZEB, ; S/N:RLW, ; S/N:JWD	VPAT	386-0461 Retrofit Kit ⁽²⁾

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⁽¹⁾	Refer to Table 2 for hose assembly build information.
⁽²⁾	Refer to Table 3 for hose assembly build information.

Standard Configuration Hose Assembly

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Table 2
Build Information for 386-2386 384-0462 Retrofit Kit
Item	QYT	Part Number	Description
1	1	364-5999	Hose As
	914 mm (36 inch)	165-0020	Hose
	1	6V-9969	Permanent Coupling As
	1	8T-3731	Permanent Coupling As
2	1	364-6000	Hose As
	1016 mm (40 inch)	165-0020	Hose
	1	6V-9969	Permanent Coupling As
	1	8T-3731	Permanent Coupling As
3	1	364-6628	Hose As
	1168 mm (46 inch)	238-8337	Hose
	2	323-6157	Permanent Coupling As
4	1	364-6629	Hose As
	1041 mm (41 inch)	238-8337	Hose
	1	323-6157	Permanent Coupling As
	1	323-6173	Permanent Coupling As
5	1	364-6630	Hose As
	2845 mm (112 inch)	276-2970	Hose
	1	124-2111	Permanent Coupling
	1	124-2158	Permanent Coupling

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Illustration 1	g03345425
Standard Configuration Hose assemblies, 386-2386, 384-0462 Retrofit Kit

VPAT Configuration Hose Assembly

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Table 3
Build Information For 386-2387 384-0461 Retrofit Kit
Item	QYT	Part Number	Description
1	1	365-9461	Hose As
	117 mm (4.60 inch)	276-2970	Hose
	1	124-2111	Permanent Coupling
	1	124-2158	Permanent Coupling
2	1	365-9462	Hose As
	965 mm (38 inch)	165-0020	Hose
	1	6V-9969	Permanent Coupling As
	1	8T-3731	Permanent Coupling As
3	1	365-9463	Hose As
	1067 mm (42 inch)	165-0020	Hose
	1	6V-9969	Permanent Coupling As
	1	8T-3731	Permanent Coupling As
4	1	365-9464	Hose As
	1143 mm (45 inch)	238-8337	Hose
	1	323-6157	Permanent Coupling As
	1	323-6173	Permanent Coupling As
5	1	365-9465	Hose As
	1092 mm (43 inch)	238-8337	Hose
	1	323-6157	Permanent Coupling As
	1	323-6173	Permanent Coupling As

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Illustration 2	g03345501
VPAT Configuration hose assemblies, 386-2387 Retrofit Kitand 384-0461 Retrofit Kit

386-2387, 384-0461, 386-2386, 384-0462 Retrofit Kit Installation Instructions

Referenced Parts

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Table 4
386-2386 Retrofit Kit ⁽¹⁾ 384-0462 Retrofit Kit ⁽²⁾ 386-2387 Retrofit Kit ⁽³⁾ 384-0461 Retrofit Kit ⁽⁴⁾
Item	Qty	Part Number	Description
1	1	053-4679	Washer
2	1	164-5605	Connector As
3	1	360-1748	Counterbalance Valve Gp
4	1	364-5999 ⁽¹⁾ ⁽²⁾	Hose As
4	1	365-9462 ⁽³⁾ ⁽⁴⁾	Hose As
5	1	364-6000 ⁽¹⁾ ⁽²⁾	Hose As
5	1	365-9463 ⁽³⁾ ⁽⁴⁾	Hose As
6	1	364-6628 ⁽¹⁾ ⁽²⁾	Hose As
6	1	365-9464 ⁽³⁾ ⁽⁴⁾	Hose As
7	1	364-6629 ⁽¹⁾ ⁽²⁾	Hose As
7	1	365-9465 ⁽³⁾ ⁽⁴⁾	Hose As
8	1	364-6630 ⁽¹⁾ ⁽²⁾	Hose As
8	1	365-9461 ⁽³⁾ ⁽⁴⁾	Hose As
9	1	366-8434	Bracket As
10	1	369-2637	Valve Manifold Gp
11	1	370-3803 ⁽¹⁾ ⁽³⁾	Guard
11	1	371-4293 ⁽²⁾ ⁽⁴⁾	Guard
12	1	148-8316	Connector As
13	2	148-8327	Connector As
14	1	148-8374 ⁽¹⁾ ⁽²⁾	Elbow As
14	1	194-2903 ⁽³⁾ ⁽⁴⁾	Elbow As
15	2	148-8378	Elbow As
16	1	162-0177	Plug As
17	1	164-5619	Plug As
18	1	205-3692	Elbow As
19	1	275-1442	Clip
20	1	275-1443	Clip
21	1	333-4609	Grommet
22	1	4D-9517	Clip
23	2	4J-0520	O-Ring Seal
24	3	5P-1076	Hard Washer
25	1	6K-8178	Clip
26	1	7G-3832	Grommet
27	1	7G-3833	Clip
28	1	7G-3834	Clip
29	2	7X-2534	Bolt
30	4	7X-7729	Washer
31	2	8T-4121	Hard Washer
32	1	8T-4137	Bolt
33	2	8T-4184	Bolt
34	2	8T-4192	Bolt
35	4	8T-4195	Bolt
36	1	8T-4196	Bolt
37	2	8T-4223	Hard Washer
38	2	9X-8256	Washer
39	1	204-0317 ⁽³⁾ ⁽⁴⁾	Connector As

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⁽¹⁾	Standard
⁽²⁾	Standard
⁽³⁾	VPAT
⁽⁴⁾	VPAT

Machine Preparation

Ensure that personnel safety and machine security processes are understood and followed prior to beginning work.

Thoroughly clean machine before any mechanical activity.
Relieve pressure from hydraulic system.
Place vacuum on hydraulic system to prevent unwanted leakage and contamination control if applicable.

Part Removal

Provide 5 gal of hydraulic oil to replenish system after installation.
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Illustration 3 g02677156
Remove floor mats, arm rest, and sound panel located to the right of the seat.
Remove access cover plates and lower the seat to provide adequate work space.
Note: Set items in a safe location for later reinstallation.
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Illustration 4 g02677376
Remove Hose (A) and hose (B).
Note: The hoses will not be reused.
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Illustration 5 g03646438
Remove hoses (C) and cap for reinstallation.

Installation

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Illustration 6	g03646148

Prepare the needle valve for installation onto the implement valve.
Install manifold gp (10) to bracket (9) using two washers (38) and two bolts (29).
Install connector (2).
Install elbow (14) or connector assembly (39) depending on the retrofit kit.
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Illustration 7 g03645705
Attach manifold group (10) to the valve stack manifold using two bolts (34) and two washers (37).
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Illustration 8 g03645810
Install adapter assembly (12) to the valve stack. Attach hose assembly (8) to adapter assembly (12).
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Illustration 9 g03645765
Install hose assembly (4) and hose assembly (5) to the valve stack.
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Illustration 10 g03645787
Attach hose assembly (7) to adapter assembly (2). Attach hose assembly (6) to elbow assembly (14).
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Illustration 11 g03646188
Remove existing bolt in existing clip. Secure hose assembly (8) using clip (22), washer (31), bolt (36). Position clip (22) on the front side of the existing clip. Secure hose assembly (8) using clip (25), washer (31), and bolt (32).
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Illustration 12 g03725063

The arrow represents the position of detail view in Illustration 13.
Secure two hose assemblies (4) and (5) using clip (27), clip (28), and grommet (26).
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Illustration 13 g03645925
Secure two hose assemblies (6) and (7) using clip (19), clip (20), grommet (21). Secure clips (19), (20), (27), and (28) to bracket using washer (1), three washers (24), and two bolts (33).
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Illustration 14 g03645896
Install connector assembly (13) to counterbalance valve group (3). Connect hose assemblies (4), and (5) to connector assembly (13).
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Illustration 15 g03646129
Install elbow assembly (15) and elbow assembly (18) to counterbalance valve group (3). Connect hose assembly (6) to elbow assembly (15). Connect hose assembly (7) to elbow assembly (18).
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Illustration 16 g03646132
Install elbow assembly (15) to counterbalance valve group (3). Connect hose assembly (8) to elbow assembly (15).
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Illustration 17 g03646138
Install guard (11) using the existing six washers and six bolts. Install four washers (30), and four bolts (35).
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Illustration 18 g03646146

(D) To Rod End of Ripper Cylinder
(E) To Head End of Ripper Cylinder
Reinstall ripper lines to counterbalance valve group. As shown in Illustration 18.