Field Installation of the 364-1356 Quick Coupler Conversion Kit (Hydraulic){6129} Caterpillar

Skid Steer Loader:

252B3 (S/N: TNK1-UP)

Introduction

ReferenceOperation and Maintenance, SEBU8495, "216B3, 226B3, 236B3, 242B3, 252B3 Skid Steer Loaders 247B3, 257B3 Multi Terrain Loaders, and 259B3 Compact Track Loader"

ReferenceDisassembly and Assembly, UENR0252, "216B3, 226B3, 236B3, 242B3, 252B3 Skid Steer Loaders 247B3, 257B3 Multi Terrain Loaders, and 259B3 Compact Track Loader"

This Special Instruction contains the information for installing the 364-1356 Quick Coupler Conversion Kit (Hydraulic) on the listed machines. This instruction should be read and understood before you begin installation of this kit. Also obtain the Operation and Maintenance Manual and the Disassembly and Assembly Manuals for instructions that are referenced herein.

Work safely. Most accidents that involve product operation, maintenance, and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs. A person must be alert to potential hazards. This person should also have the necessary training, skills, and tools in order to perform these functions properly.

Safety precautions and warnings are provided in this instruction and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons.

Required Parts

The parts that are required for installing the 364-1356 Quick Coupler Conversion Kit (Hydraulic) are listed in Table 1. Information on service repair parts is also provided in this section.

Preparing the Machine

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Personal injury can result from hydraulic oil pressure and hot oil. Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system. Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.

1. Park the machine.

   Note: Refer to "Machine Parking" in the Operation and Maintenance Manual for your machine.

2. Release hydraulic system pressure.

   Note: Refer to "Release Procedure (Hydraulic System Pressure)" in the Disassembly and Assembly Manual for your machine.

Disassembling the Manual Coupler

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Illustration 1	g01458377
Rear view

1. Perform Step 2 through Step 5 in order to remove mechanical lock group (A) from the quick coupler.

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Illustration 2	g01458383
Section A-A

2. Remove locknut (C). See Illustration 2.

   Note: Use caution as you remove the nut. The spring tension will be released as you remove the nut.

3. Remove washer (D), spring (E), and spacer (F) .

4. Remove bolt (G) and two washers (H) .

5. Withdraw Handle Group (A) from the quick coupler.

6. Repeat Step 2 through Step 5 in order to remove Handle Group (B) from the quick coupler.

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Illustration 3	g01458391

7. Disconnect the 192-2642 Pin (K) from BOTH Handle and Pin Groups by removing the 166-2560 Spring Pin (J). See Illustration 3.

Installing the Cylinder Group

This section provides instruction for installing the coupler cylinder and link group on the existing quick coupler arrangement.

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Illustration 4	g02372357

1. Assemble an existing 192-2642 Pin (K) to a 215-3957 Coupler Cylinder and Link Gp (2). Use a 303-8767 Spring Pin (3) in order to assemble these components. See Illustration 4.

   Assemble a 192-2640 Coupler Cylinder Gp (1) to the 215-3957 Coupler Cylinder and Link Gp (2). Use a 303-8768 Spring Pin (4) in order to assemble these components.

2. Repeat Step 1 in order to preassemble the second coupler link group.

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Illustration 5	g02372377
Front view

3. Install the 218-6332 Bracket (6) and the 218-6333 Bracket (7) on the quick coupler. Use the four 8T-4196 Bolts and the four 7X-7729 Washer that are on the top plate of the quick coupler. See Illustration 5.

   Tighten bolts to a torque of 55 ± 10 N·m (41 ± 7 lb ft).

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Illustration 6	g02372396
Rear view

4. Secure the outside edge of EACH bracket to the quick coupler. Use two 8T-4196 Bolts (14), four 8T-4121 Hard Washers (12), and two 8T-4133 Nuts (13) to fasten each bracket. See Illustration 6.

   Tighten bolts to a torque of 55 ± 10 N·m (41 ± 7 lb ft).

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Illustration 7	g02482823
Front view

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Illustration 8	g02372400
View B-B

Note: Coat EACH pin bore with lubricant before inserting the pin.

5. Attach the link group to the quick coupler. Use a 207-9785 Pin (8) and a 5P-0372 Lock Pin (10) in order to attach the link group. See Illustration 7.

   Attach the head end of the cylinder to the quick coupler. Use a 8L-5188 Pin (11), two 9T-7303 Spacers (15), and a 3B-4628 Cotter Pin (9) in order to attach the cylinder. See Section B-B of Illustration 8.

6. Repeat Step 5 in order to install the second link group to the quick coupler.

Installation of the Lines Group

Note: For cleanliness, cap all hydraulic lines until the lines are installed.

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Illustration 9	g02482838

1. Open the engine compartment door.

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Illustration 10	g02482851
(34) 8T-4189 Bolt (37) 8T-4224 Hard Washer (59) 326-5762 Bracket As

2. Install the 326-5762 Bracket As (59) to the frame. Use the two 8T-4224 Hard Washers and the two 8T-4189 Bolts (34). See Illustration 10.

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Illustration 11	g02482859
(M) Surface (Y) Surface (44) 148-8336 Connector As (45) 148-8353 Elbow As (46) 148-8378 Elbow As (56) 233-7128 Control Manifold Gp

3. Install one 148-8336 Connector As (44) onto 233-7128 Control Manifold Gp (56). Install one 148-8353 Elbow As (45) onto 233-7128 Control Manifold Gp (56) parallel to surface (Y). Install two 148-8378 Elbow As (46) onto 233-7128 Control Manifold Gp (56). Orient 148-8378 Elbow As (46) fifteen degrees towards surface (M) .

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Illustration 12	g02484057
(12) 8T-4121 Hard Washer (22) 4P-7581 Clip (39) 8T-5005 Bolt (56) 233-7128 Control Manifold Gp

4. Install the 233-7128 Control Manifold Gp (56) using the following hardware:
   • One 4P-7581 Clip (22)

   • Two 8T-4121 Hard Washers (12)

   • Two 8T-5005 Bolts (39)

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Illustration 13	g02426236

5. Build drain hose assembly. Bulk hose length is determined by model.
   • One 124-2113 Permanent Coupling (31)

   • One 124-2129 Permanent Coupling (32)

   • 116 cm (45.7 inch) 213-8708 Hydraulic Hose (62)

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Illustration 14	g02484477

6. Disconnect hose (P). Install 148-8446 Swivel Tee (19) onto 148-8315 Connector (R). Connect hose (P) to 148-8446 Swivel Tee (19) .

7. Install one 156-4282 Reducer As (49) and one 9X-6581 O-Ring Seal Nut (41) .

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Illustration 15	g02484509

8. Install 326-5637 Hose As (61) to 156-4282 Reducer As (49) .

9. Clip to implement valve bracket using the following hardware:
   • One 1P-7009 Clip (18)

   • One 8T-4908 Bolt (38)

   • One 5C-7261 Nut (63)

   • Two 5P-4116 Hard Washer (65)

10. Install one 148-8433 Tee As (47) between the drain manifold and the drain manifold drain hose.

11. Connect forty-five degree end of drain hose to 148-8433 Tee As (47). Route hoses (61) and (62) to the back of the machine.

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Illustration 16	g02484679

12. Remove exisitng bolt (X) and reinstall with 4P-7581 Clip (22) .

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Illustration 17	g02484696
(12) 8T-4121 Hard Washer (22) 4P-7581 Clip (40) 9M-8406 Clip (29) 7K-1181 Cable Strap (66) 8T-4137 Bolt (S) Supply hose (T) Drain hose

13. Connect supply hose (S) and drain hose (T) to the valve. Strap the supply hose (S) and drain hose (T) to 4P-7581 Clip (22) with one 7K-1181 Cable Strap (29). Clip hoses to boss on engine mount support using two 9M-8406 Clip (40), one 8T-4137 Bolt (66), and one 8T-4121 Hard Washer (12) .

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Illustration 18	g02484736
(29) 7K-1181 Cable Strap (60) 326-5765 Hose As

14. Connect the two 326-5586 Hose As (60) to the valve. Secure the hoses to the rear tilt tube with the following hardware:
    • One 9R-1004 Clip (67)

    • One 9R-1005 Clip (68)

    • One 5K-8451 Clip (64)

    • One 8T-4908 Bolt (38)

    • Two 8T-4224 Hard Washer (37)

    • One 5C-7261 Nut (63)

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Illustration 19	g02380036

15. Secure the two hoses (60) at the top of the tower. Position one 6K-8178 Clip (23) on each hose. Use one 2K-5232 Spacer (20), two 8T-4121 Hard Washers (12), one 8T-4133 Nut (13), and one 8T-5005 Bolt (39) for each hose, as shown. See Illustration 19.

16. Install two 3S-2093 Cable Straps (21) in order to secure hoses (60) to the existing hoses, as shown. See Illustration 19.

    Also, secure hoses (60) with two 164-4225 Clips (50). Install clips (50) in tandem with the existing clips.

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Illustration 20	g02484796

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Illustration 21	g02484797

17. Position the 218-5943 Tube As (58) and the 218-5944 Tube As (57) along the right lift arm, as shown. See Illustration 20 and Illustration 21.

18. Connect one 326-5586 Hose As (60) to tube (57). Attach the other 326-5586 Hose As (60) to tube (58) .

    Note: Use a 6V-8397 O-Ring Seal (24) for each connection.

19. Attach one 7H-7055 Clip (28) for each tube at the two clamping locations for the tilt tubes. Secure using the existing bolts and washers. See Illustration 20.

    Tighten the bolt to a torque of 30 ± 7 N·m (22.0 ± 5.0 lb ft).

20. Attach one 7H-7055 Clip (28) to each tube on the right side of the lift arm crossmember. Use one 8T-4121 Hard Washer (12) and one 8T-4201 Locking Bolt (36) to fasten clips to threaded boss under the crossmember on the right side. See Illustration 20 and Illustration 21.

    Tighten the bolt to a torque of 30 ± 7 N·m (22.0 ± 5.0 lb ft).

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Illustration 22	g02488856
Detail A

21. Attach one 7H-7055 Clip (28) to each tube on the left side of the lift arm crossmember. Use one 8T-4121 Hard Washer (12) and one 8T-4201 Locking Bolt (36) to fasten clips to threaded boss under the crossmember on the left side. See Illustration 22.

    Tighten the bolt to a torque of 30 ± 7 N·m (22.0 ± 5.0 lb ft).

22. Connect the straight coupling of one 207-9758 Hose As (55) to tube (57). Connect the straight coupling of the other 207-9758 Hose As (55) to tube (58). See Illustration 22.

    Note: Use a 6V-8397 O-Ring Seal (24) for each connection.

23. Attach one 9M-8406 Clip (40) to each 207-9758 Hose As (55). Use one 8T-4121 Hard Washer (12) and one 8T-4201 Locking Bolt (36) to secure the clips to the threaded boss under the lift arm crossmember. See Illustration 22.

    Tighten the bolt to a torque of 30 ± 7 N·m (22.0 ± 5.0 lb ft).

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Illustration 23	g02380137

24. Install the 207-9737 Bracket (51) on the top of the coupler. Use two 8T-4191 Bolts (35) and two 7X-7729 Washers (30). See Illustration 23.

25. Install the two 150-4034 Tees (48) on bracket (51) by using one 6V-9168 Nut (25) to secure each tee.

    Tighten nuts (39) to a torque of 55 ± 5 N·m (41.0 ± 4.0 lb ft).

26. Attach the 90° couplings of the two 207-9758 Hose As (55) to the two 150-4034 Tees (48) .

27. Install the straight couplings of the four 207-9756 Hose Assemblies (52) to the two 150-4034 Tee Assemblies (48) .

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Illustration 24	g02380236

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Illustration 25	g02380238
Section views for Illustration 24 (V) 17° ± 5° Angle (W) 90° ± 5° Angle

28. Install one 148-8325 Connector Gp (43) to each port on the two 192-2640 Coupler Cylinder Groups (1). Connect the 90 degree coupling of the 207-9756 Hose Assemblies (52) to the four connectors (43). See Illustration 24.

    Note: Align the hose assemblies at the angles that are specified in Illustration 25.

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Illustration 26	g02381020

29. Use a 7G-2950 Clip (26), a 7G-2951 Clip (27), one 7X-7729 Washer (30), and one 8T-4136 Bolt (33) in order to attach the two 207-9758 Hose Assemblies (55) to the coupler. See Illustration 26.

30. Install the 212-6690 Guard (54). Use two 8T-4189 Bolts (34) and two 8T-4224 Hard Washers (37). Install the 124-2456 Film (42) on the front of guard (54). See Illustration 26.

31. Locate the unused 4-pin plug "PA-C11" that is on the 328-2274 Platform Harness As (UPPER) on the right side of the engine compartment.

32. Check the connector plug in order to ensure that the wiring is consistent with Table 13.
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    Table 13

    4-Pin Plug
    Pin	Color	Wire Number
    1	WH	779
    2	BU	K927
    3	BU	K927
    4	PU	780

33. Connect the 4-pin plug to the connector for the solenoid for the 233-7128 Solenoid Valve and Mounting Gp (56). Use a 7K-1181 Cable Strap (29) and secure the 4-pin plug to clip (59), as shown. See Illustration 12.

Installing the Switch

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Illustration 27	g01041816

1. On the left-hand control panel, remove the plug from the empty position that is indicated in Illustration 27.

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Illustration 28	g02381061

2. Install the 212-6521 Rocker Switch (53) by inserting the rocker switch into the connector that is provided behind the control panel. See Illustration 28.

Operation of Work Tool Coupler Control

Illustration 29	g01041822

To disengage the coupler pins, pull red button (A) downward and press the TOP of rocker switch (B). When the rocker switch is in the UNLOCKED position, the coupler pins will be disengaged. See Illustration 29.

To engage the coupler pins, press the BOTTOM of rocker switch (B). The switch should be in the LOCKED position when you are not disengaging the quick coupler pins.

Note: If the coupler pins will not engage at low idle engine speed, repeat the procedure with the machine in high idle.