- Excavator
- 330D (S/N: RDA1-UP; GBC1-UP; NBD1-UP; R2D1-UP; GGE1-UP; THJ1-UP; LRM1-UP; ERN1-UP; RAS1-UP; MEY1-UP; T2Y1-UP)
- 336D (S/N: SKE1-UP; J2F1-UP; JBF1-UP; PRF1-UP; LMG1-UP; MYG1-UP; KDJ1-UP; W3K1-UP; WRK1-UP; PPN1-UP; MYP1-UP; JER1-UP; JWR1-UP; DTS1-UP; NLS1-UP; KKT1-UP; WET1-UP; PGW1-UP)
- 336D2 (S/N: WDC1-UP; YCF1-UP; XBH1-UP; FAR1-UP; EFT1-UP; TLY1-UP)
Introduction
This Special Instruction outlines the installation procedure to retrofit a 418-6206 Check and Relief Valve Ar and a 255-5868 Load Control Valve Ar on certain excavators listed above.
Do not perform any procedure or order any parts that are outlined in this publication until you understand the information.
Safety
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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. |
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Hydraulic oil pressure can remain in the hydraulic systems after the engine and pump have been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic systems. To prevent possible injury, refer to the section, Testing and Adjusting, "Hydraulic System Pressure - Release" before any fitting, hose or component is loosened, tightened, removed or adjusted.
When possible, the bucket or attachment must always be lowered to the ground before service is started. When it is necessary for the boom to be in the raised position while tests or adjustments are done, be sure that the boom, stick and bucket or attachment have correct support.
The swing lock (if equipped) must be engaged before service is started.
Always move the machine to a location away from the travel of other machines. Be sure that other personnel are not near the machine when the engine is running and tests or adjustments are being made. |
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Required Parts
Check and Relief Valve Arrangement
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Table 1
418-5071 Boom Cylinder Lines Gp |
Item |
Part Number |
Part Name |
Qty |
1 |
7K-1181 |
Cable Strap |
22 |
2 |
108-7550 |
Clip |
4 |
3 |
465-5185 |
Support As |
2 |
4 |
4I-9525 |
Marker Band (ORANGE, R1) |
2 |
5 |
149-1738 |
Clip |
4 |
6 |
418-9212 |
Tube As |
1 |
7 |
418-9213 |
Tube As |
1 |
8 |
418-9214 |
Pipe As |
1 |
9 |
465-5188 |
Support As |
1 |
10 |
418-9216 |
Pipe As |
1 |
11 |
465-5190 |
Support As |
1 |
12 |
245-5110 |
Hose As(1) |
2 |
7I-7439 |
Hose Guard |
265 cm (104.3 inch) (per hose assembly) |
124-2114 |
Coupling |
2 (per hose assembly) |
122-6869 |
Hydraulic Hose |
221 cm (87.0 inch) (per hose assembly) |
13 |
245-5113 |
Hose As(1) |
2 |
124-2114 |
Coupling |
2 (per hose assembly) |
7I-7439 |
Hose Guard |
292 cm (115.0 inch) (per hose assembly) |
122-6869 |
Hydraulic Hose |
243 cm (95.7 inch) (per hose assembly) |
14 |
245-5116 |
Hose As(1) |
2 |
153-0785 |
Permanent Coupling As |
2 (per hose assembly) |
7I-7439 |
Hose Guard |
213 cm (83.9 inch) (per hose assembly) |
161-1833 |
Hydraulic Hose |
150 cm (59.1 inch) (per hose assembly) |
15 |
245-5120 |
Support As |
1 |
16 |
245-5122 |
Block |
1 |
17 |
270-5692 |
Manual Valve Gp (BOOM LOWER) |
1 |
18 |
260-8278 |
Hose As(1) |
2 |
7I-1024 |
Hose Guard |
123 cm (48.4 inch) |
124-2119 |
Permanent Coupling |
2 |
124-2150 |
Permanent Coupling |
2 |
122-6871 |
Hydraulic Hose |
105 cm (41.3 inch) |
19 |
263-1962 |
Load Control Valve Gp |
2 |
20 |
148-8336 |
Connector As(2) |
8 |
3J-1907 |
O-Ring Seal |
8 |
6V-8397 |
O-Ring Seal |
8 |
6V-8636 |
Connector |
8 |
21 |
148-8341 |
Connector As(2) |
4 |
3D-2824 |
O-Ring Seal |
4 |
6V-8713 |
Connector |
4 |
7J-9108 |
O-Ring Seal |
4 |
22 |
148-8347 |
Elbow As(3) |
1 |
3D-2824 |
O-Ring Seal |
1 |
6V-9007 |
Elbow |
1 |
6V-9746 |
O-Ring Seal |
1 |
23 |
148-8361 |
Elbow As(3) |
2 |
3J-7354 |
O-Ring Seal |
2 |
6V-8397 |
O-Ring Seal |
2 |
6V-9200 |
Elbow |
2 |
24 |
148-8378 |
Elbow As(3) |
4 |
3J-1907 |
O-Ring Seal |
4 |
6V-8397 |
O-Ring Seal |
4 |
6V-8724 |
Elbow |
4 |
25 |
1P-3703 |
Rectangular Seal |
2 |
26 |
1P-3704 |
Rectangular Seal |
2 |
27 |
5K-9090 |
O-Ring Seal |
2 |
28 |
8T-4121 |
Hard Washer |
10 |
29 |
8T-4139 |
Bolt |
10 |
30 |
8T-4176 |
Bolt |
2 |
31 |
8T-4185 |
Bolt |
2 |
32 |
8T-4196 |
Bolt |
8 |
33 |
8T-4223 |
Hard Washer |
20 |
34 |
108-3819 |
Bolt |
8 |
35 |
8T-4648 |
Bolt |
8 |
36 |
148-8411 |
Plug(4) |
1 |
3K-0360 |
O-Ring Seal |
1 |
9S-4185 |
Plug |
1 |
37 |
7J-9108 |
O-Ring Seal |
1 |
38 |
4I-9521 |
Marker Band (RED, L1) |
2 |
39 |
4I-9522 |
Marker Band (YELLOW, L2) |
2 |
40 |
4I-9526 |
Marker Band (WHITE, R2) |
2 |
Show/hide table
(1) |
Hose assembly is not serviceable. |
(2) |
Connector assembly is not serviceable. |
(3) |
Elbow assembly is not serviceable. |
(4) |
Plug assembly is not serviceable. |
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Table 2
255-2077 Return Lines Gp |
Item |
Part Number |
Part Name |
Qty |
1 |
194-0354 |
Hose As(1) |
1 |
5K-9090 |
O-Ring Seal |
2 |
124-2123 |
O-Ring Face Seal Coupling |
1 |
124-2155 |
Coupling As |
1 |
122-6873 |
Hydraulic Hose |
123.8 cm (48.7 inch) |
2 |
223-6732 |
Tube As |
1 |
3 |
260-8086 |
Hose As(1) |
1 |
124-2121 |
Permanent Coupling |
1 |
124-2153 |
Coupling |
1 |
122-6872 |
Hydraulic Hose |
119 cm (46.9 inch) |
4 |
148-8357 |
Elbow As(2) |
1 |
5K-9090 |
O-Ring Seal |
1 |
6V-9008 |
Elbow |
1 |
7M-8485 |
O-Ring Seal |
1 |
5 |
148-8411 |
Plug(3) |
1 |
3K-0360 |
O-Ring Seal |
1 |
9S-4185 |
Plug |
1 |
6 |
185-0488 |
Block |
1 |
7 |
1P-3703 |
Rectangular Seal |
2 |
8 |
207-6449 |
Block |
1 |
9 |
4J-5268 |
O-Ring Seal |
1 |
10 |
5K-9090 |
O-Ring Seal |
2 |
11 |
6V-9746 |
O-Ring Seal |
1 |
12 |
7M-8485 |
O-Ring Seal |
1 |
13 |
8T-5005 |
Bolt |
4 |
14 |
329-5528 |
Elbow As(2) |
1 |
8T-8899 |
Elbow |
1 |
228-7092 |
O-Ring Seal |
1 |
15 |
275-1418 |
Hose As |
1 |
153-0793 |
Permanent Coupling As |
1 |
153-0803 |
Permanent Coupling As |
1 |
7Y-5074 |
Hose Guard |
85 cm (33.5 inch) |
161-1835 |
Hydraulic Hose |
82 cm (32.3 inch) |
16 |
1P-3702 |
Rectangular Seal |
2 |
Show/hide table
(1) |
Hose assembly is not serviceable. |
(2) |
Elbow assembly is not serviceable. |
(3) |
Plug assembly is not serviceable. |
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Table 3
255-1855 Pilot Lines Gp |
Item |
Part Number |
Part Name |
Qty |
1 |
4I-0800 |
Hose As |
1 |
2 |
4I-0818 |
Hose As(1) |
1 |
6V-8397 |
O-Ring Seal |
2 |
146-3340 |
Permanent Coupling |
1 |
146-3358 |
Permanent Coupling |
1 |
135-7855 |
Hose |
75.6 cm (29.8 inch) |
3 |
7K-1181 |
Cable Strap |
15 |
4 |
087-6583 |
Hose As(1) |
1 |
6V-8397 |
O-Ring Seal |
2 |
149-3340 |
Permanent Coupling |
2 |
135-7855 |
Hose |
246.8 cm (97.2 inch) |
5 |
113-6738 |
Hose As(1) |
1 |
6V-8397 |
O-Ring Seal |
2 |
146-3340 |
Permanent Coupling |
2 |
135-7855 |
Hose |
305 cm (120.1 inch) |
6 |
133-5813 |
Marker Band (GRAY, P) |
2 |
7 |
266-0982 |
Guard |
1 |
8 |
148-8363 |
Elbow As(2) |
1 |
3K-0360 |
O-Ring Seal |
1 |
6V-8397 |
O-Ring Seal |
1 |
6V-9876 |
Elbow |
1 |
9 |
148-8433 |
Tee As(3) |
1 |
6V-8397 |
O-Ring Seal |
2 |
6V-9836 |
Swivel Tee |
1 |
Show/hide table
(1) |
Hose assembly is not serviceable. |
(2) |
Elbow assembly is not serviceable. |
(3) |
Tee assembly is not serviceable. |
Load Control Valve Arrangement
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Table 4
237-3200 Boom Lines Gp |
Item |
Part Number |
Part Name |
Qty |
1 |
5I-4393 |
Hose As(1) |
1 |
149-8476 |
Permanent Coupling |
2 |
423-1972 |
Hose |
83 cm (32.7 inch) |
2 |
7K-1181 |
Cable Strap |
5 |
3 |
179-5235 |
Clip |
8 |
4 |
179-5254 |
Plate |
2 |
5 |
193-6662 |
Plate |
1 |
6 |
212-5419 |
Hose As(1) |
2 |
6V-8397 |
O-Ring Seal |
4 (2 per hose assembly) |
146-3340 |
Permanent Coupling |
4 (2 per hose assembly) |
135-7855 |
Hose |
423.8 cm (166.9 inch) (per hose assembly) |
7 |
356-8170 |
Plate |
1 |
8 |
282-5718 |
Tube As |
1 |
9 |
149-5452 |
Union As(2) |
2 |
6V-8397 |
O-Ring Seal |
2 |
6V-8994 |
Union |
1 |
10 |
5Q-4212 |
Clip |
2 |
11 |
6V-8398 |
O-Ring Seal |
2 |
12 |
6V-9168 |
Nut |
2 |
13 |
8T-4139 |
Bolt |
8 |
14 |
447-1704 |
Bolt |
2 |
15 |
8T-4223 |
Hard Washer |
10 |
16 |
8T-4244 |
Nut |
8 |
17 |
8T-5001 |
Bolt |
2 |
18 |
451-2175 |
Hard Washer |
2 |
Show/hide table
(1) |
Hose assembly is not serviceable. |
(2) |
Union assembly is not serviceable. |
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Table 5
255-1854 Pilot Lines Gp (STICK LOAD CONTROL) |
Item |
Part Number |
Part Name |
Qty |
1 |
7K-1181 |
Cable Strap |
9 |
2 |
201-9379 |
Block |
1 |
3 |
269-9944 |
Hose As(1) |
1 |
7I-7439 |
Hose Guard |
177 cm (69.7 inch) |
149-8474 |
Permanent Coupling |
1 |
149-8501 |
Permanent Coupling |
1 |
423-1971 |
Hose |
349 cm (137.4 inch) |
4 |
437-0481 |
Hose As(1) |
1 |
149-8476 |
Permanent Coupling |
2 |
7I-7439 |
Hose Guard |
156 cm (61.4 inch) |
423-1972 |
Hose |
116 cm (45.7 inch) |
5 |
285-2592 |
Hose As(1) |
1 |
6V-8397 |
O-Ring Seal |
2 |
7I-7439 |
Hose Guard |
216 cm (85 inch) |
149-8474 |
Permanent Coupling |
1 |
149-8493 |
Permanent Coupling |
1 |
423-1971 |
Hose |
189.8 cm (74.7 inch) |
6 |
148-8336 |
Connector As(2) |
1 |
3J-1907 |
O-Ring Seal |
1 |
6V-8397 |
O-Ring Seal |
1 |
6V-8636 |
Connector |
1 |
7 |
148-8364 |
Elbow As(3) |
1 |
3K-0360 |
O-Ring Seal |
1 |
6V-8398 |
O-Ring Seal |
1 |
6V-8625 |
Elbow |
1 |
8 |
148-8433 |
Tee As(4) |
2 |
6V-8397 |
O-Ring Seal |
2 (per tee assembly) |
6V-9836 |
Swivel Tee |
1 (per tee assembly) |
9 |
133-5813 |
Marker Band (GRAY, P) |
2 |
10 |
4I-9523 |
Marker Band (BLUE, L3) |
4 |
11 |
148-8378 |
Elbow As |
1 |
3J-1907 |
O-Ring Seal |
1 |
6V-8397 |
O-Ring Seal |
1 |
6V-8724 |
Elbow |
1 |
Show/hide table
(1) |
Hose assembly is not serviceable. |
(2) |
Connector assembly is not serviceable. |
(3) |
Elbow assembly is not serviceable. |
(4) |
Tee assembly is not serviceable. |
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Table 6
237-3199 Stick Cylinder Lines Gp |
Item |
Part Number |
Part Name |
Qty |
1 |
093-1290 |
Clamp |
1 |
2 |
093-1294 |
Clamp |
2 |
3 |
124-0903 |
Support As |
1 |
4 |
202-6752 |
Support As |
1 |
5 |
216-6513 |
Support As |
1 |
6 |
216-6515 |
Clip |
2 |
7 |
259-7692 |
Load Control Valve Gp (DRIFT REDUCTION, VAR ADJ BOOM) |
1 |
8 |
268-7208 |
Tube As |
1 |
9 |
268-7209 |
Tube As |
1 |
10 |
268-7211 |
Tube As |
1 |
11 |
268-7213 |
Tube As |
1 |
12 |
108-1782 |
Bolt |
4 |
13 |
148-8328 |
Connector As(1) |
1 |
3D-2824 |
O-Ring Seal |
1 |
6V-8398 |
O-Ring Seal |
1 |
6V-8633 |
Connector |
1 |
14 |
148-8368 |
Elbow As(2) |
2 |
3J-1907 |
O-Ring Seal |
1 |
4J-5477 |
O-Ring Seal |
1 |
6V-8627 |
Elbow |
1 |
15 |
1P-3705 |
Rectangular Seal |
2 |
16 |
6V-8397 |
O-Ring Seal |
2 |
17 |
6V-8398 |
O-Ring Seal |
1 |
18 |
447-1708 |
Bolt |
2 |
19 |
8T-4121 |
Hard Washer |
7 |
20 |
8T-4186 |
Bolt |
3 |
21 |
447-1711 |
Bolt |
2 |
22 |
8T-4196 |
Bolt |
4 |
23 |
8T-4223 |
Hard Washer |
4 |
24 |
8T-6868 |
Bolt |
4 |
25 |
451-2175 |
Hard Washer |
4 |
Show/hide table
(1) |
Connector assembly is not serviceable. |
(2) |
Elbow assembly is not serviceable. |
Machine Preparation
- Position the machine on level ground.
- Fully retract the stick cylinder rod. Adjust the position of the bucket so that the bucket is parallel to the ground. Lower the boom until the bucket is flat on the ground.
- Shut off the engine.
- Release the pressure in the hydraulic system. Refer to Testing and Adjusting, "Hydraulic System Pressure - Release".
Procedure For Installing the Check and Relief Valve Arrangement
Boom Cylinder Lines Group
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Illustration 1 | g03801647 |
387-9380 Boom Cylinder Lines Gp (LH)
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Illustration 2 | g03802036 |
387-9382 Boom Cylinder Lines Gp (RH)
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Illustration 3 | g03802102 |
260-7870 Boom Cylinder Lines Gp (BOOM)
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- Before installing 418-5071 Boom Cylinder Lines Gp, remove the parts shown in Illustrations 1,2, and 3, and listed in Table 7.
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Table 7
Standard Removal Parts |
Item |
Part Number |
Part Name |
Qty |
A1 |
1P-3703 |
Rectangular Seal |
1 |
A2 |
8T-4910 |
Bolt |
4 |
A3 |
387-8299 |
Tube As |
1 |
A4 |
5K-9090 |
O-Ring Seal |
1 |
A5 |
8T-4223 |
Hard Washer |
2 |
A6 |
8T-4139 |
Bolt |
2 |
A7 |
465-5186 |
Support As |
1 |
A8 |
108-7550 |
Clip |
2 |
A9 |
465-5185 |
Support As |
1 |
A10 |
8T-4121 |
Hard Washer |
4 |
A11 |
8T-4196 |
Bolt |
4 |
B1 |
1P-3703 |
Rectangular Seal |
1 |
B2 |
8T-4910 |
Bolt |
4 |
B3 |
387-8297 |
Tube As |
1 |
B4 |
5K-9090 |
O-Ring Seal |
1 |
B5 |
8T-4223 |
Hard Washer |
2 |
B6 |
8T-4139 |
Bolt |
2 |
B7 |
465-5185 |
Support As |
1 |
B8 |
108-7550 |
Clip |
2 |
B9 |
465-5187 |
Support As |
1 |
B10 |
8T-4121 |
Hard Washer |
4 |
B11 |
8T-4196 |
Bolt |
4 |
C1 |
123-2809 |
Support As |
1 |
C2 |
8T-4139 |
Bolt |
2 |
C3 |
8T-4223 |
Hard Washer |
2 |
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Illustration 4 | g03794353 |
418-5071 Boom Cylinder Lines Gp
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Illustration 5 | g03794356 |
418-5071 Boom Cylinder Lines Gp
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- Install 418-5071 Boom Cylinder Lines Gp. Refer to Table 1 for a list of the required parts. Refer to Illustrations 4 and 5 for the location of the parts. Refer to Tables 8 through 11 for the required parts to build hose assemblies (12), (13), (14), and (18). Refer to Table 12 for specifications.
Show/hide table
Table 8
Hose Assembly |
Item |
Part Number |
Part Name |
Qty |
12 |
245-5110 |
Hose As |
2 |
- |
7I-7439 |
Hose Guard |
265 cm (104.3 inch) (per hose assembly) |
- |
124-2114 |
Coupling |
4 (two per hose assembly) |
- |
122-6869 |
Hydraulic Hose |
221 cm (87 inch) (per hose assembly) |
Total assembled length of hose assembly (12) (each hose assembly) ... 2260 ± 20 mm (89 ± 0.8 inch)
Show/hide table
Table 9
Hose Assembly |
Item |
Part Number |
Part Name |
Qty |
13 |
245-5113 |
Hose As |
2 |
- |
7I-7439 |
Hose Guard |
292 cm (115 inch) (per hose assembly) |
- |
124-2114 |
Coupling |
4 (two per hose assembly) |
- |
122-6869 |
Hydraulic Hose |
243 cm (95.7 inch) (per hose assembly) |
Total assembled length of hose assembly (13) (each hose assembly) ... 2480 ± 20 mm (97.6 ± 0.8 inch)
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Table 10
Hose Assembly |
Item |
Part Number |
Part Name |
Qty |
14 |
245-5116 |
Hose As |
2 |
- |
7I-7439 |
Hose Guard |
213 cm (83.9 inch) (per hose assembly) |
- |
153-0785 |
Permanent Coupling As |
4 (two per hose assembly) |
- |
161-1833 |
Hydraulic Hose |
150 cm (59.1 inch) (per hose assembly) |
Total assembled length of hose assembly (14) (each hose assembly) ... 1570 ± 15 mm (61.8 ± 0.6 inch)
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Table 11
Hose Assembly |
Item |
Part Number |
Part Name |
Qty |
18 |
260-8278 |
Hose As |
2 |
- |
7I-1024 |
Hose Guard |
123 cm (48.4 inch) (per hose assembly) |
- |
124-2119 |
Permanent Coupling As |
2 (one per hose assembly) |
- |
124-2150 |
Permanent Coupling As |
2 (one per hose assembly) |
- |
122-6878 |
Hydraulic Hose |
105 cm (41.3 inch) (per hose assembly) |
Total assembled length of hose assembly (18) (each hose assembly) ... 1130 ± 15 mm (44.5 ± 0.6 inch)
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Table 12
Specification for 418-5071 Boom Cylinder Lines Gp |
Item |
Qty |
Part |
Specification Description |
- |
- |
- |
Sharp corners at the cutting edge of each cable strap shall not be allowed. |
32 |
8 |
8T-4196 Bolt |
Torque to 32 ± 6 N·m (283 ± 53 lb in). |
Return Lines Group
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Illustration 6 | g03803057 |
260-7870 Boom Cylinder Lines Gp
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Illustration 7 | g03803088 |
248-9838 Return Lines Gp (REAR)
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Illustration 8 | g03803110 |
260-7869 Front Lines Gp (FRONT)
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- Before installing 418-5071 Boom Cylinder Lines Gp, remove the parts shown in Illustrations 1,2, and 3, and listed in Table 7.
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Table 13
Standard Removal Parts |
Item |
Part Number |
Part Name |
Qty |
D1 |
148-8355 |
Elbow As |
1 |
D2 |
101-7398 |
Bolt |
4 |
D3 |
212-5443 |
Tube As |
1 |
D4 |
5K-9090 |
O-Ring Seal |
2 |
D5 |
1P-3703 |
Rectangular Seal |
1 |
E1 |
275-1675 |
Hose As |
1 |
F1 |
260-8197 |
Hose As |
1 |
F2 |
1P-3702 |
Rectangular Seal |
2 |
F3 |
255-5683 |
Load Control Valve Gp (BOOM DRIFT RED, LINE RELIEF) |
1 |
F4 |
1P-3703 |
Rectangular Seal |
1 |
F5 |
4J-5268 |
O-Ring Seal |
1 |
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Illustration 9 | g03794375 |
255-2077 Return Lines Gp
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- Install 255-2077 Return Lines Gp. Refer to Table 2 for a list of the required parts. Refer to Illustration 9 for the location of the parts. Refer to Tables 14 through 16 for the required parts to build hose assemblies (1), (3), and (15). Refer to Table 17 for specifications.
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Table 14
Hose Assembly |
Item |
Part Number |
Part Name |
Qty |
1 |
194-0354 |
Hose As |
1 |
- |
5K-9090 |
O-Ring Seal |
2 |
- |
124-2123 |
O-Ring Face Seal Coupling |
1 |
- |
124-2155 |
Coupling As |
1 |
- |
122-6873 |
Hydraulic Hose |
123.8 cm (48.7 inch) |
Total assembled length of hose assembly (1) ... 1360 ± 15 mm (53.5 ± 0.6 inch)
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Table 15
Hose Assembly |
Item |
Part Number |
Part Name |
Qty |
3 |
260-8086 |
Hose As |
1 |
- |
124-2121 |
Permanent Coupling |
1 |
- |
124-2153 |
Coupling |
1 |
- |
122-6872 |
Hydraulic Hose |
119 cm (46.9 inch) |
Total assembled length of hose assembly (3) ... 1290 ± 15 mm (50.8 ± 0.6 inch)
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Table 16
Hose Assembly |
Item |
Part Number |
Part Name |
Qty |
15 |
275-1418 |
Hose As |
1 |
- |
153-0793 |
Permanent Coupling As |
1 |
- |
153-0803 |
Permanent Coupling As |
1 |
- |
7Y-5074 |
Hose Guard |
85 cm (33.5 inch) |
- |
161-1835 |
Hydraulic Hose |
82 cm (32.3 inch) |
Total assembled length of hose assembly (15) ... 960 ± 15 mm (37.8 ± 0.6 inch)
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Table 17
Specification for 255-2077 Return Lines Gp |
Item |
Qty |
Part |
Specification Description |
3 |
1 |
260-8086 Hose As |
Torque to 160 ± 16 N·m (118 ± 12 lb ft). |
Pilot Lines Group
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Illustration 10 | g03803949 |
433-8072 Pilot Lines Gp
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Illustration 11 | g03803613 |
Main Control Valve
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Illustration 12 | g03804284 |
- Before installing 255-1855 Pilot Lines Gp, remove the parts shown in Illustrations 10,11, and 12, and listed in Table 18.
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Table 18
Standard Removal Parts |
Item |
Part Number |
Part Name |
Qty |
G1 |
7K-1181 |
Cable Strap |
5 |
G2 |
087-4531 |
Hose As |
1 |
G3 |
087-5762 |
Hose As |
1 |
G4 |
087-5772 |
Hose As |
1 |
G5 |
330-2568 |
Hose As |
1 |
G6 |
148-8433 |
Tee As |
1 |
G7 |
148-8435 |
Tee As |
1 |
G8 |
148-8336 |
Connector As |
2 |
H1 |
148-8411 |
Plug |
1 |
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Illustration 13 | g03794666 |
255-1855 Pilot Lines Gp
|
- Install 255-1855 Pilot Lines Gp. Refer to Table 3 for a list of the required parts. Refer to Illustration 13 for the location of the parts. Refer to Tables 19 through 21 for the required parts to build hose assemblies (2), (4), and (5).
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Table 19
Hose Assembly |
Item |
Part Number |
Part Name |
Qty |
2 |
4I-0818 |
Hose As |
1 |
- |
6V-8397 |
O-Ring Seal |
2 |
- |
146-3340 |
Permanent Coupling |
1 |
- |
146-3358 |
Permanent Coupling |
1 |
- |
135-7855 |
Hose |
75.6 cm (29.8 inch) |
Total assembled length of hose assembly (2) ... 820 ± 7 mm (32.3 ± 0.3 inch)
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Table 20
Hose Assembly |
Item |
Part Number |
Part Name |
Qty |
4 |
087-6583 |
Hose As |
1 |
- |
6V-8397 |
O-Ring Seal |
2 |
- |
146-3340 |
Permanent Coupling |
2 |
- |
135-7855 |
Hose |
246.8 cm (97.2 inch) |
Total assembled length of hose assembly (4) ... 2530 ± 26 mm (99.6 ± 1.0 inch)
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Table 21
Hose Assembly |
Item |
Part Number |
Part Name |
Qty |
5 |
113-6738 |
Hose As |
1 |
- |
6V-8397 |
O-Ring Seal |
2 |
- |
146-3340 |
Permanent Coupling |
2 |
- |
135-7855 |
Hose |
305 cm (120.1 inch) |
Total assembled length of hose assembly (5) ... 3100 ± 31 mm (122.0 ± 1.2 inch)
Procedure For Installing the Load Control Valve Arrangement
Boom Lines Group
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Illustration 14 | g03804361 |
237-3196 Auxiliary Hydraulic Lines Gp
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Illustration 15 | g03804423 |
239-1626 Boom Lines Gp
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- Before installing 237-3200 Boom Lines Gp, remove the parts shown in Illustration 14 or Illustration 15, and listed in Table 22.
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Table 22
Standard Removal Parts |
Item |
Part Number |
Part Name |
Qty |
J1 |
8T-4648 |
Bolt |
2 |
J2 |
8T-4223 |
Hard Washer |
2 |
J3 |
447-1708 |
Bolt |
2 |
J4 |
451-2175 |
Hard Washer |
2 |
K1 |
447-1707 |
Bolt |
2 |
K2 |
451-2175 |
Hard Washer |
2 |
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Illustration 16 | g03794673 |
237-3200 Boom Lines Gp
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- Install 237-3200 Boom Lines Gp. Refer to Table 4 for a list of the required parts. Refer to Illustration 16 for the location of the parts. Refer to Tables 23 and 24 for the required parts to build hose assemblies (1) and (6). Refer to Table 25 for specifications.
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Table 23
Hose Assembly |
Item |
Part Number |
Part Name |
Qty |
1 |
5I-4393 |
Hose As |
1 |
- |
149-8476 |
Permanent Coupling |
2 |
- |
423-1972 |
Hose |
83 cm (32.7 inch) |
Total assembled length of hose assembly (1) ... 900 ± 7 mm (35.4 ± 0.3 inch)
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Table 24
Hose Assembly |
Item |
Part Number |
Part Name |
Qty |
6 |
212-5419 |
Hose As |
2 |
- |
6V-8397 |
O-Ring Seal |
4 (two per hose assembly) |
- |
146-3340 |
Permanent Coupling |
4 (two per hose assembly) |
- |
135-7855 |
Hose |
423.8 cm (166.9 inch) |
Total assembled length of hose assembly (6) (each hose assembly) ... 4300 ± 43 mm (169.3 ± 1.7 inch)
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Table 25
Specification for 237-3200 Boom Lines Gp |
Item |
Qty |
Part |
Specification Description |
1 |
1 |
5I-4393 Hose As |
Torque to 76 ± 4 N·m (56 ± 3 lb ft) |
2 |
5 |
7K-1181 Cable Strap |
Sharp corners at the cutting edge of each cable strap shall not be allowed. |
A |
- |
278-6593 Hose As |
Distance from the end of the hose assemblies to the center of the mounting bolts is 75.0 ± 5.0 mm (2.95 ± 0.20 inch). |
B |
- |
8T-4196 Bolt |
Distance from the end of the mounting pin to the center of the mounting bolts is 215.0 mm (8.46 inch). |
Pilot Lines Group
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Illustration 17 | g03804787 |
433-8072 Pilot Lines Gp
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Illustration 18 | g03804858 |
433-8072 Pilot Lines Gp
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- Before installing 255-1854 Pilot Lines Gp, remove the parts shown in Illustrations 17 and 18, and listed in Table 26.
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Table 26
Standard Removal Parts |
Item |
Part Number |
Part Name |
Qty |
J1 |
4I-1739 |
Hose As |
1 |
J2 |
148-8435 |
Tee As |
1 |
J3 |
148-8439 |
Tee As |
1 |
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Illustration 19 | g03794677 |
255-1854 Pilot Lines Gp
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- Install 255-1854 Pilot Lines Gp. Refer to Table 5 for a list of the required parts. Refer to Illustration 19 for the location of the parts. Refer to Tables 27 through 29 for the required parts to build hose assemblies (3), (4), and (5). Refer to Table 30 for specifications.
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Table 27
Hose Assembly |
Item |
Part Number |
Part Name |
Qty |
3 |
269-9944 |
Hose As |
1 |
- |
7I-7439 |
Hose Guard |
177 cm (69.7 inch) |
- |
149-8474 |
Permanent Coupling |
1 |
- |
149-8501 |
Permanent Coupling |
1 |
- |
423-1971 |
Hose |
349 cm (137.4 inch) |
Total assembled length of hose assembly (3) ... 3550 ± 35 mm (139.8 ± 1.4 inch)
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Table 28
Hose Assembly |
Item |
Part Number |
Part Name |
Qty |
4 |
437-0481 |
Hose As |
1 |
- |
7I-7439 |
Hose Guard |
156 cm (61.4 inch) |
- |
149-8476 |
Permanent Coupling |
2 |
- |
423-1972 |
Hose |
116 cm (45.7 inch) |
Total assembled length of hose assembly (4) ... 1230 ± 13 mm (48.4 ± 0.5 inch)
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Table 29
Hose Assembly |
Item |
Part Number |
Part Name |
Qty |
5 |
285-2592 |
Hose As |
1 |
- |
6V-8397 |
O-Ring Seal |
2 |
- |
7I-7439 |
Hose Guard |
216 cm (85 inch) |
- |
149-8474 |
Permanent Coupling |
1 |
- |
149-8493 |
Permanent Coupling |
1 |
- |
423-1971 |
Hose |
189.8 cm (74.7 inch) |
Total assembled length of hose assembly (5) ... 1960 ± 19 mm (77.2 ± 0.7 inch)
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Table 30
Specification for 255-1854 Pilot Lines Gp |
Item |
Qty |
Part |
Specification Description |
1 |
9 |
7K-1181 Cable Strap |
Sharp corners at the cutting edge of each cable strap shall not be allowed. |
4 |
1 |
437-0481 Hose As |
Torque to 76 ± 4 N·m (56 ± 3 lb ft). |
6 |
1 |
148-8336 Connector As |
Torque to 29 ± 3 N·m (257 ± 27 lb in). |
Stick Cylinder Lines Group
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Illustration 20 | g03805017 |
239-1876 Stick Cylinder Lines Gp
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- Before installing 237-3199 Stick Cylinder Lines Gp, remove the parts shown in Illustration 20 and listed in Table 26.
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Table 31
Standard Removal Parts |
Item |
Part Number |
Part Name |
Qty |
L1 |
239-1877 |
Tube As |
1 |
L2 |
1P-3705 |
Rectangular Seal |
1 |
L3 |
8T-4648 |
Bolt |
4 |
L4 |
453-1259 |
Bolt |
2 |
L5 |
451-2175 |
Hard Washer |
2 |
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Illustration 21 | g03794833 |
237-3199 Stick Cylinder Lines Gp
|
- Install 237-3199 Stick Cylinder Lines Gp. Refer to Table 6 for a list of the required parts. Refer to Illustration 21 for the location of the parts. Refer to Illustration 22 and Table 8 for specifications.
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Illustration 22 | g03795044 |
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Table 32
Specification for 237-3199 Stick Cylinder Lines Gp |
Item |
Qty |
Part |
Specification Description |
8 |
1 |
268-7208 Tube As |
Torque to 76 ± 4 N·m (56 ± 3 lb ft). |
20 |
3 |
8T-4186 Bolt |
Torque to 30 ± 7 N·m (266 ± 62 lb in). |
22 |
4 |
8T-4196 Bolt |
Torque to 32 ± 6 N·m (283 ± 53 lb in). |
C |
- |
- |
Distance from the center of the mounting pin to the support assembly 1500.0 ± 3.0 mm (59.06 ± 0.12 inch). |
D |
- |
- |
Orientation of the support assembly is 20 ± 3 degrees. |