Installation Procedure to Retrofit Boom and Stick Lowering Control Valves, and a Stick Cylinder Lines Group on Certain 320D, 320D2, and 323DExcavators{5117, 5453, 5458} Caterpillar

Excavator:

320D (S/N: DFB1-UP; KGF1-UP; TDH1-UP; FAL1-UP; KLM1-UP; WJN1-UP; GDP1-UP; SNS1-UP; BWZ1-UP)

320D2 (S/N: YEA1-UP; PBB1-UP; TMF1-UP; KHR1-UP; KBS1-UP; ZCS1-UP)

323D (S/N: GTF1-UP)

Introduction

This Special Instruction outlines the installation procedure to retrofit a 270-5974 Check and Relief Valve Ar (Boom Lowering Control Valve), a 419-5123 Check and Relief Valve Ar (Stick Lowering Control Valve), and a 419-5136 Stick Cylinder Lines Gp on the machines 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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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.

Required Parts

270-5974 Check and Relief Valve Ar

419-5123 Check and Relief Valve Ar (STICK LOWER CONT, REACH BOOM)

419-5136 Stick Cylinder Lines Gp (STICK LOWERING CONTROL)

Machine Preparation

1. Position the machine on level ground.

2. 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.

3. Shut off the engine.

4. Release the pressure in the hydraulic system. Refer to the appropriate Testing and Adjusting, "Hydraulic System Pressure - Release" procedure for your machine.

Installation Procedure for the 270-5974 Check and Relief Valve Ar

Removal of Standard Parts

Before installing 286-6495 Boom Cylinder Lines Gp of the 270-5974 Check and Relief Valve Ar , remove the standard parts listed in Tables 7, 8 and 9.

242-6732 Boom Cylinder Lines Gp (LH)

Illustration 1	g03827987
242-6732 Boom Cylinder Lines Gp (1) 247-8869 Tube As (2) 222-0126 Tube As (3) 095-1597 O-Ring Seal (4) 9X-6032 Bolt (5) 137-3709 Support As (6) 4I-3621 Support (7) 8T-4196 Bolt (8) 8T-4896 Hard Washer (9) 8T-3653 Bolt (10) 3B-4509 Lockwasher (11) 094-1920 Clamp

1. Remove the standard parts listed in Table 7 and shown in Illustration 1.

242-6737 Boom Cylinder Lines Gp (RH)

Illustration 2	g03828035
242-6737 Boom Cylinder Lines Gp (1) 095-1597 O-Ring Seal (2) 9X-6032 Bolt (3) 222-0124 Tube As (4) 247-8870 Tube As (5) 094-1920 Clamp (6) 8T-3653 Bolt (7) 3B-4509 Lockwasher (8) 8T-4196 Bolt (9) 8T-4896 Hard Washer (10) 4I-3621 Support (11) 137-3709 Support As

1. Remove the standard parts listed in Table 8 and shown in Illustration 2.

239-1699 Boom Cylinder Lines Gp (BOOM)

Illustration 3	g03827965
Right side view of 239-1699 Boom Cylinder Lines Gp (1) 124-1062 Support As (2) 8T-4192 Bolt (3) 8T-4223 Hard Washer (4) 6V-9746 O-Ring Seal (A) Swing drive

1. Remove the standard parts listed in Table 9 and shown in Illustration 3.

Installation of 286-6495 Boom Cylinder Lines Group

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Illustration 4	g03788680
286-6495 Boom Cylinder Lines Gp (1) 4I-1674 Clip (2) 7K-1181 Cable Strap (3) 119-2804 Support As (4) 149-1738 Clip (5) 225-4785 Load Control Valve Gp (6) 266-1110 Tube As (7) 266-1111 Tube As (8) 266-1114 Tube As (9) 266-1115 Tube As (10) 266-1116 Support As (11) 266-1147 Hose As (12) 320-0013 Hose As (13) 278-6587 Block (14) 278-6593 Hose As (15) 278-6875 Support As (16) 278-6877 Support As (17) 286-6731 Hose As (18) 286-6720 Tube As (19) 286-6721 Tube As (20) 148-8326 Connector As (21) 148-8336 Connector As (22) 148-8341 Connector As (23) 148-8371 Elbow As (24) 148-8378 Elbow As (25) 148-8390 Elbow Gp (26) 148-8407 Plug As (27) 148-8411 Plug (28) 148-8435 Tee As (29) 164-5578 Tee As (30) 1P-3703 Rectangular Seal (31) 4I-9521 Marker Band (32) 4I-9522 Marker Band (33) 4I-9525 Marker Band (34) 4I-9526 Marker Band (35) 6V-9746 O-Ring Seal (36) 7J-9108 O-Ring Seal (37) 280-2747 Bolt (38) 8T-4121 Hard Washer (39) 8T-4136 Bolt (40) 8T-4185 Bolt (41) 8T-4192 Bolt (42) 8T-4196 Bolt (43) 8T-4223 Hard Washer (44) 8T-4956 Bolt (45) 8T-6466 Bolt (46) 307-5121 Guard (A) Upper frame (B) Boom cylinder

1. Install 286-6495 Boom Cylinder Lines Gp . Refer to Table 1 for a list of the required parts. Refer to Illustration 4 for the location of the parts. Refer to Tables 10 and 11 for the required parts to build hose assemblies (11) and (14). Refer to Tables 12, 13, and 14 for the required parts to build connector assemblies (20), (21), and (22). Refer to Tables 15 and 16 for the required parts to build elbow assemblies (24) and (25). Refer to Tables 17 and 18 for the required parts to build plug assemblies (26) and (27). Refer to Tables 19 and 20 for the required parts to build tee assemblies (28) and (29). Refer to Table 21 for specifications.
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   Table 10

   Hose Assembly
   Item	Part Number	Part Name	Qty
   11	266-1147	Hose As	1
   -	323-6157	Permanent Coupling As	2
   -	161-1833	Hydraulic Hose	44 cm (17.3 inch)

   Total assembled length of hose assembly (11) ... 510 ± 5 mm (20.1 ± 0.12 inch)

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   Table 11

   Hose Assembly
   Item	Part Number	Part Name	Qty
   14	278-6593	Hose As	2
   -	124-2150	Permanent Coupling	2 (one per hose assembly)
   -	7I-1024	Hose Guard	90 cm (35.4 inch) (Length per hose assembly)
   -	122-6871	Hydraulic Hose	86 cm (33.0 inch) (Length per hose assembly)
   -	124-2119	Permanent Coupling	2 (one per hose assembly)

   Total assembled length for each hose assembly (14) ... 940 ± 15 mm (37.0 ± 0.6 inch)

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   Table 12

   Connector Assembly
   Item	Part Number	Part Name	Qty
   20	148-8326	Connector As	2
   -	3J-7354	O-Ring Seal	2
   -	6V-8397	O-Ring Seal	2
   -	6V-9872	Connector	2

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   Table 13

   Connector Assembly
   Item	Part Number	Part Name	Qty
   21	148-8336	Connector As	4
   -	3J-1907	O-Ring Seal	4
   -	6V-8397	O-Ring Seal	4
   -	6V-8636	Connector	4

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   Table 14

   Connector Assembly
   Item	Part Number	Part Name	Qty
   22	148-8341	Connector As	2
   -	3D-2824	O-Ring Seal	2
   -	6V-8713	Connector	2
   -	7J-9108	O-Ring Seal	2

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   Table 15

   Elbow Assembly
   Item	Part Number	Part Name	Qty
   24	148-8378	Elbow As	2
   -	3J-1907	O-Ring Seal	2
   -	6V-8397	O-Ring Seal	2
   -	6V-8724	Elbow	2

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   Table 16

   Elbow Assembly
   Item	Part Number	Part Name	Qty
   25	148-8390	Elbow As	1
   -	2M-9780	O-Ring Seal	1
   -	6V-8626	Elbow	1
   -	7J-9108	O-Ring Seal	1

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   Table 17

   Plug Assembly
   Item	Part Number	Part Name	Qty
   26	148-8407	Plug As	2
   -	3J-1907	O-Ring Seal	2
   -	9S-4191	Plug	2

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   Table 18

   Plug Assembly
   Item	Part Number	Part Name	Qty
   27	148-8411	Plug As	2
   -	3K-0360	O-Ring Seal	2
   -	9S-4185	Plug	2

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   Table 19

   Tee Assembly
   Item	Part Number	Part Name	Qty
   28	148-8435	Tee As	2
   -	3J-1907	O-Ring Seal	2
   -	6V-8397	O-Ring Seal	4
   -	6V-8781	Tee	2

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   Table 20

   Tee Assembly
   Item	Part Number	Part Name	Qty
   29	164-5578	Tee As	1
   -	3D-2824	O-Ring Seal	1
   -	6V-9175	Tee	1
   -	6V-9746	O-Ring Seal	1
   -	7J-9108	O-Ring Seal	1

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   Table 21

   Specification for 286-6495 Boom Cylinder Lines Gp
   Item	Qty	Part	Specification Description
   2	12	7K-1181 Cable Strap	Sharp corners at the cutting edge of each cable strap shall not be allowed.
   14	2	278-6593 Hose As	114.5 ± 17 N·m (1013.4 ± 150.5 lb in)
   42	8	8T-4196 Bolt	32 ± 6 N·m (283.22400 ± 53.10450 lb in)
   C	-	-	Orientation of tee assembly is 5 ± 3 degrees.
   D	-	-	Orientation of tee assembly is 30 ± 3 degrees.
   E	-	-	Orientation of tee assembly is 30 ± 3 degrees.
   F	-	-	Orientation of elbow assembly is 5 ± 3 degrees.
   G	-	-	Orientation of elbow group is 30 ± 3 degrees.
   H	-	-	Orientation of elbow assembly is 25 ± 3 degrees.
   J	-	-	Orientation of connector assembly is 45 ± 1 degrees.
   K	-	-	Orientation of support assembly is 45 ± 3 degrees.
   L	-	-	Orientation of support assembly is 45 ± 3 degrees.

Removal of Standard Parts

Before installing 282-7161 Return Lines Gp of 270-5974 Check and Relief Valve Ar , remove the standard parts listed in Tables 22 and 23.

248-9846 Hydraulic Oil Cooler Lines Gp (CONTROL VALVE, PUMP)

Illustration 5	g03828109
248-9846 Hydraulic Oil Cooler Lines Gp (1) 199-7403 Hose As (A) Upper frame

1. Remove the standard part listed in Table 22 and shown in Illustration 5.

239-1714 Front Lines Gp

Illustration 6	g03828123
239-1714 Front Lines Gp (1) 255-5683 Load Control Valve Gp (2) 1P-3703 Rectangular Seal (3) 4J-5268 O-Ring Seal

1. Remove the standard parts listed in Table 23 and shown in Illustration 6.

Installation of 282-7161 Return Lines Group

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Illustration 7	g03789576
Right side view of 282-7161 Return Lines Gp (1) 7K-1181 Cable Strap (2) 107-1567 Hose As (3) 319-9845 Hose As (4) 201-9378 Block (5) 307-4920 Fitting (6) 148-8357 Elbow As (7) 148-8411 Plug (8) 1P-3703 Rectangular Seal (9) 4J-5268 O-Ring Seal (10) 148-8327 Connector As (A) Main control valve (B) Upper frame (C) Swivel

1. Install 282-7161 Return Lines Gp . Refer to Table 2 for a list of the required parts. Refer to Illustration 7 for the location of the parts. Refer to Table 24 for the required parts to build hose assembly (3). Refer to Table 25 for the required parts to build elbow assembly (6). Refer to Table 26 for the required parts to build plug assembly (7). Refer to Table 27 for the required parts to build plug assembly (10). Refer to Table 28 for specifications.
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   Table 24

   Hose Assembly
   Item	Part Number	Part Name	Qty
   3	319-9845	Hose As	1
   -	124-2123	O-Ring Face Seal Coupling	2
   -	122-6873	Hydraulic Hose	122 cm (48 inch)

   Total assembled length of hose assembly (3) ... 1300 ± 13 mm (51.2 ± 0.5 inch)

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   Table 25

   Elbow Assembly
   Item	Part Number	Part Name	Qty
   6	148-8357	Elbow As	1
   -	5K-9090	O-Ring Seal	1
   -	6V-9008	Elbow	1
   -	7M-8485	O-Ring Seal	1

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   Table 26

   Plug Assembly
   Item	Part Number	Part Name	Qty
   7	148-8411	Plug As	1
   -	3K-0360	O-Ring Seal	1
   -	9S-4185	Plug	1

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   Table 27

   Connector Assembly
   Item	Part Number	Part Name	Qty
   10	148-8327	Connector As	1
   -	3D-2824	O-Ring Seal	1
   -	6V-8637	Connector	1
   -	6V-9746	O-Ring Seal	1

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   Table 28

   Specification for 282-7161 Return Lines Gp
   Item	Qty	Part	Specification Description
   1	1	7K-1181 Cable Strap	Sharp corners at the cutting edge of each cable strap shall not be allowed.
   2	1	107-1567 Hose As	114.5 ± 17 N·m (1013.4 ± 150.5 lb in)

Removal of Standard Parts

Before installing 282-7162 Pilot Lines Gp of 270-5974 Check and Relief Valve Ar , remove the standard parts listed in Tables 7, 8, and 9.

248-9851 Pilot Lines Gp (MAIN CONTROL VALVE)

Illustration 8	g03830812
248-9851 Pilot Lines Gp (7) 7K-1181 Cable Strap (A) Connects to main hydraulic pump (B) Connects to Hydraulic oil pilot oil filter and valve (C) Main control valve mounting (D) Main control valve

Illustration 9	g03830695
248-9851 Pilot Lines Gp (1) 087-4531 Hose As (2) 330-2568 Hose As (3) 087-5762 Hose As (4) 087-5772 Hose As (7) 7K-1181 Cable Strap

Illustration 10	g03830846
248-9851 Pilot Lines Gp (5) 148-8336 Connector As (6) 148-8433 Tee As

1. Remove the standard parts listed in Table 29 and shown in Illustrations 8, 9, and 10.

248-9853 Return Lines Gp

Illustration 11	g03828183
Rear view of 248-9853 Return Lines Gp (1) 148-8411 Plug (A) Hydraulic tank

1. Remove the standard part listed in Table 30 and shown in Illustration 11.

Installation of 282-7162 Pilot Lines Gp

Illustration 12	g03789955
Top view of 282-7162 Pilot Lines Gp (1) 4I-0800 Hose As (4) 7K-1181 Cable Strap (7) 148-8363 Elbow As (9) 5K-8451 Clip (10) 8T-4121 Hard Washer (11) 8T-4191 Bolt (A) Main control valve (B) Upper frame

Illustration 13	g03813484
Rear view of 282-7162 Pilot Lines Gp (2) 5I-8825 Hose As (3) 4I-3981 Hose As (4) 7K-1181 Cable Strap (5) 133-5813 Marker Band (6) 199-1863 Hose As (8) 148-8433 Tee As (A) Main control valve

1. Install 282-7162 Pilot Lines Gp . Refer to Table 3 for a list of the required parts. Refer to Illustrations 12 and 13 for the location of the parts. Refer to Tables 31, 31, and 31 for the required parts to build hose assemblies (2), (3) and (6). Refer to Table 34 for the required parts to build elbow assembly (7). Refer to Table 35 for the required parts to build tee assembly (8). Refer to Table 36 for specifications.

Total assembled length of hose assembly (2) ... 750 ± 7 mm (29.5 ± 0.3 inch)

Total assembled length of hose assembly (3) ... 2750 ± 28 mm (108.3 ± 1.1 inch)

Total assembled length of hose assembly (6) ... 3380 ± 34 mm (133.1 ± 1.3 inch)

Installation Procedure for 419-5123 Check and Relief Valve Ar (Stick Lowering Control Valve)

Removal of Standard Parts

Before installing 242-6505 Boom Lines Gp of the 419-5123 Check and Relief Valve Ar , the parts listed below need to be removed from 239-1732 Boom Lines Gp and the 242-6476 Auxiliary Hydraulic Lines Gp (MED PRESSURE).

Illustration 14	g03828679
(1) 8T-4139 Bolt (2) 8T-4223 Hard Washer (3) 7X-2549 Bolt (4) 8T-4223 Hard Washer

1. Remove the standard parts listed in Tables 37 and 38, and shown in Illustration 14.

Installation of 242-6505 Boom Lines Gp (STICK LOAD CONTROL)

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Illustration 15	g03790320
242-6505 Boom Lines Gp (1) 5I-4393 Hose As (2) 5Q-4213 Clip (3) 7K-1181 Cable Strap (4) 202-3915 Plate (5) 268-6850 Hose As (6) 288-7410 Tube As (7) 282-5567 Plate (8) 149-5452 Union As (9) 5Q-4212 Clip (10) 6V-8398 O-Ring Seal (11) 6V-9168 Nut (12) 7X-2549 Bolt (13) 8T-4139 Bolt (14) 8T-4223 Hard Washer (15) 8T-4244 Nut

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Illustration 16	g03792758
Right side view of 242-6505 Boom Lines Gp

1. Install 242-6505 Boom Lines Gp . Refer to Table 4 for a list of the required parts. Refer to Illustration 15 for the location of the parts. Refer to Tables 39, and 40 for the required parts to build hose assemblies (1), and (5). Refer to Illustration 16 and Table 42 for specifications.

Total assembled length of hose assembly (1) ... 900 ± 7 mm (35.4 ± 0.3 inch)

Total assembled length for each hose assembly (5) ... 3550 ± 36 mm (139.78 ± 1.4 inch)

Removal of Standard Parts

Before installing 260-7970 Pilot Lines Gp of the 419-5123 Check and Relief Valve Ar , the parts listed below need to be removed from 248-9851 Pilot Lines Gp , 239-1714 Front Lines Gp , 275-1397 Return Lines Gp , 260-7969 Pilot Lines Gp , 282-7480 Front Lines Gp , and 282-7162 Pilot Lines Gp .

Illustration 17	g03830536
(1) 4T-1739 Hose As (4) 7K-1181 Cable Strap (A) Connects to main hydraulic pump (B) Connects to hydraulic oil pilot oil filter and valve (C) Main control valve mounting (D) Main control valve

Illustration 18	g03830965
(2) 148-8435 Tee As

Illustration 19	g03831013
(3) 148-8336 Connector As

1. Remove the standard parts listed in Table 43, and shown in Illustrations 17, 18, and 19.

Illustration 20	g03830537
(1) 255-5680 Load Control Valve Gp (A) Upper frame

1. Remove the standard part listed in Table 44 and shown in Illustration 20.

Illustration 21	g03830538
Top view 275-1397 Return Lines Gp (1) 148-8411 Plug

1. Remove the standard part listed in Table 45 and shown in Illustration 21.

Illustration 22	g03830539
Top view 260-7969 Pilot Lines Gp (1) 7Y-8379 Hose As (A) Upper frame (B) Swing drive (C) Hydraulic tank

1. Remove the standard part listed in Table 46 and shown in Illustration 22.

Illustration 23	g03830540
Top view of 282-7480 Front Lines Gp (1) 6V-9830 Cap As (A) Main control valve

1. Remove the standard part listed in Table 47 and shown in Illustration 23.

Illustration 24	g03830541
Top view of 282-7162 Pilot Lines Gp (1) 4I-0800 Hose As (A) Main control valve (B) Upper frame

1. Remove the standard part listed in Table 48 and shown in Illustration 24.

Installation of 260-7970 Pilot Lines Gp (LOAD CONTROL, STICK CYLINDER)

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Illustration 25	g03790595
Top view of 260-7970 Pilot Lines Gp (2) 201-9379 Block (7) 148-8364 Elbow As (A) Swing drive (B) Main control valve (C) Upper frame

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Illustration 26	g03790616
Right side view of 260-7970 Pilot Lines Gp (1) 7K-1181 Cable Strap (3) 275-1712 Hose As (4) 275-1713 Hose As (5) 282-7079 Hose As (8) 148-8433 Tee As (10) 136-0207 Cable Strap (11) 133-5813 Marker Band (12) 4I-9523 Marker Band (A) Swing drive (B) Upper frame

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Illustration 27	g03813554
Rear view of 260-7970 Pilot Lines Gp (1) 7K-1181 Cable Strap (6) 148-8336 Connector As (9) 148-8434 Tee As (13) 6V-9829 Cap As (A) Main control valve (B) Hydraulic tank

1. Install 260-7970 Pilot Lines Gp . Refer to Table 5 for a list of the required parts. Refer to Illustrations 25, 26, and 27 for the location of the parts. Refer to Tables 49 and 50 for the required parts to build hose assemblies (3) and (5). Refer to Table 51 for the required parts to build connector assembly (6). Refer to Table 52 for the required parts to build elbow assembly (7). Refer to Tables 53 and 54 for the required parts to build tee assemblies (8) and (9). Refer to Table 55 for specifications.
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   Table 49

   Hose Assembly
   Item	Part Number	Part Name	Qty
   3	275-1712	Hose As	1
   -	7I-7439	Hose Guard	139 cm (54.7 inch)
   -	149-8474	Permanent Coupling	1
   -	149-8493	Permanent Coupling	1
   -	423-1971	Hose	294 cm (115.7 inch)

   Total assembled length of hose assembly (3) ... 3000 ± 25 mm (118.1 ± 1.0 inch)

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   Table 50

   Hose Assembly
   Item	Part Number	Part Name	Qty
   5	282-7079	Hose As	1
   -	7I-7439	Hose Guard	220 cm (86.6 inch)
   -	149-8476	Permanent Coupling	1
   -	149-8502	Permanent Coupling	1
   -	205-3719	Hose	168.5 cm (66.3 inch)

   Total assembled length of hose assembly (5) ... 1760 ± 15 mm (69.3 ± 0.6 inch)

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   Table 51

   Connector Assembly
   Item	Part Number	Part Name	Qty
   6	148-8336	Connector As	1
   -	3J-1907	O-Ring Seal	1
   -	6V-8397	O-Ring Seal	1
   -	6V-8636	Connector	1

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   Table 52

   Elbow Assembly
   Item	Part Number	Part Name	Qty
   7	148-8364	Elbow As	1
   -	3K-0360	O-Ring Seal	1
   -	6V-8398	O-Ring Seal	1
   -	6V-8625	Elbow	1

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   Table 53

   Tee Assembly
   Item	Part Number	Part Name	Qty
   8	148-8433	Tee As	1
   -	6V-8397	O-Ring Seal	2
   -	6V-9836	Swivel Tee	1

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   Table 54

   Tee Assembly
   Item	Part Number	Part Name	Qty
   9	148-8434	Tee As	1
   -	6V-8397	O-Ring Seal	2
   -	6V-9843	Swivel Tee	1

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   Table 55

   Specification for 260-7970 Pilot Lines Gp
   Item	Qty	Part	Specification Description
   5	1	282-7079 Hose As	76 ± 4 N·m (56 ± 3 lb ft)
   6	1	148-8336 Connector As	29 ± 3 N·m (257 ± 27 lb in)
   10	6	136-0207 Cable Strap	Sharp corners at the cutting edge of each cable strap shall not be allowed.

Removal of Standard Parts

Before installing 419-5136 Stick Cylinder Lines Gp , the parts listed below need to be removed from 242-6735 Stick Cylinder Lines Gp .

242-6735 Stick Cylinder Lines Gp

Illustration 28	g03829050
242-6735 Stick Cylinder Lines Gp (1) 6V-8200 Bolt (2) 095-1600 O-Ring Seal (3) 247-8883 Tube As (4) 8T-4196 Bolt (5) 8T-4896 Hard Washer (6) 124-1020 Support (7) 124-1019 Support As (8) 096-4480 Clamp (9) 8T-4910 Bolt (10) 8T-4223 Hard Washer

1. Remove the standard parts listed in Table 56 and shown in Illustration 28.

Installation of 419-5136 Stick Cylinder Lines Gp

Illustration 29	g03829083
419-5136 Stick Cylinder Lines Gp (1) 5Q-4213 Clip (2) 093-1294 Clamp (3) 247-9073 Tube As (4) 247-9074 Tube As (5) 247-9076 Tube As (6) 247-9078 Tube As (7) 352-7243 Check and Relief Valve Gp (8) 420-1013 Support As (9) 420-1015 Support As (10) 108-1782 Bolt (11) 148-8328 Connector As (12) 148-8368 Elbow As (13) 1P-3703 Rectangular Seal (14) 1P-3704 Rectangular Seal (15) 6V-8397 O-Ring Seal (16) 6V-8398 O-Ring Seal (17) 6V-9746 O-Ring Seal (18) 8T-4121 Hard Washer (19) 8T-4139 Bolt (20) 8T-4186 Bolt (21) 8T-4196 Bolt (22) 8T-4223 Hard Washer (23) 8T-4648 Bolt

1. Install 419-5136 Stick Cylinder Lines Gp . Refer to Table 6 for a list of the required parts. Refer to Illustration 29 for the location of the parts. Refer to Table 57 and Illustration 30 for specifications.

Illustration 30	g03831130