Instructions for Converting Intermittent Saw to Hot Saw{5050, 6327, 7000} Caterpillar

Track Feller Buncher:

TK741 (S/N: 2021-UP)

TK751 (S/N: 3011-UP)

TK752 (S/N: 3021-UP)

Introduction

This Special Instruction provides the necessary guidelines for converting the Intermittent Saw to a Hot Saw.

Do not perform any procedure that is outlined in this publication until you understand the information that is contained in this document. Perform the steps in the manual in order.

Preparation of the Machine

1. Clean the machine. Cleaning the machine will help to prevent dirt from entering the hydraulic system when hydraulic components are being installed.

2. Start the engine. Fully extend the stick. Lower the attachment to the ground.

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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, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates.

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Personal injury can result from contact with hot hydraulic oil and from contact with hydraulic oil that is under high pressure. Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. The hydraulic oil pressure must be released before any service on the hydraulic system is performed or serious personal injury could occur. Verify that all of the work tools have been completely lowered to the ground. Release the hydraulic oil pressure at the hydraulic tank through the breaker relief valve when the breaker relief valve is cool enough to touch with your bare hand. Verify that the hydraulic oil is cool before you begin to remove any hydraulic components or hydraulic lines.

3. Release the oil pressure in all of the implement circuits (the boom, the stick and the attachment) before any of the hydraulic lines or any of the components are disconnected or removed. Procedure to release the pressure

   1. Shut off the engine and turn the switch to the ON position. Put the hydraulic lockout control in the UNLOCK position.

   2. Cycle all control levers through the full range of motion. This will release any pressure that might be present in the hydraulic system.

      Note: If the hydraulic circuit requires the activation of a switch for operation, activate the necessary switches for the hydraulic circuit.

   3. Open the hood for the engine compartment.

      Note: The switch for the hood is located underneath the right armrest on earlier models. The switch for the hood is located on the right hand console for the later models.

   4. Turn the start switch to the OFF position.

   5. Move the hydraulic lockout control to the LOCKED position.

      Note: When the hydraulic lockout control is in the LOCKED position no implements will function.

   6. Push down on the hydraulic tank breaker relief valve until all pressure is released.

   7. When the pressure in the hydraulic system has been released then the hydraulic oil lines and the components can be removed.

4. Drain the oil from the hydraulic oil tank in a suitable container for storage or disposal. The capacity of the hydraulic oil tank is 318 L (84 US gal).
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   Table 2

   Required Parts
   Qty	Part Number	Description
   1	6V-9833	Cap
   8	6V-9829	Cap
   2	6V-9832	Cap
   2	5P-0046	Cover
   2	9S-4181	Plug
   2	7M-8485	O-Ring Seal

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Illustration 1	g01173373
242-4236 Implement Control Valve (1) 9X-6279 Set Screw

5. Remove plug in order to remove 9X-6279 Set Screw (1) in Illustration 1.

   Note: Remove 9X-6279 Set Screw (1) before applying suction to the hydraulic tank. Suction on the hydraulic tank may pull the screw into the system.

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Illustration 2	g01166489
Right side view of boom and stick (2) 261-3576 Hose As (3) 261-3577 Hose As (4) One 6V-9172 Nut , one 225-5473 Reducer , and one 155-2026 Union (5) One 216-2817 Union and one 6V-9173 Nut (6) 260-2003 Hose As (7) 261-3581 Hose As (8) 261-3573 Hose As (9) 261-3582 Hose As (10) 261-3574 Hose As (11) 261-3575 Hose As

6. Remove the hoses and components from the boom and the stick that are listed in Illustration 2.

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Illustration 3	g01166506

7. Remove fasteners (12) and cover (13) from the boom that are shown in Illustration 3.

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Illustration 4	g01166591
Intermittent saw valve (14) 261-3576 Hose As (15) Location for 6V-9833 Cap As (16) 261-3579 Hose As (17) 261-3578 Hose As (18) Location for two 5P-0046 Covers (19) 261-3585 Hose As (20) 261-3584 Hose As (21) Location for two 6V-9829 Caps

8. Remove the hoses from the intermittent saw valve that are listed in Illustration 4. Install the caps and covers that are listed in Illustration 4 onto the open ports of the valve .

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Illustration 5	g01166626
Left side of the intermittent saw valve (22) Location for two 6V-9829 Caps (23) 261-3583 Hose As (24) Location for the 6V-9832 Cap (25) 261-3580 Hose As

9. Remove the hoses from the intermittent saw valve that are listed in Illustration 5. Install the caps and covers that are listed in Illustration 5 onto the open ports of the valve .

10. Reinstall fasteners (12) and cover (13) to the boom that are listed in Illustration 3.

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Illustration 6	g01173322
Left side of the implement control valve (16) 261-3579 Hose As (19) 261-3585 Hose As (23) 261-3583 Hose As (25) 261-3580 Hose As (26) Location for a 9S-4181 Plug and a 7M-8485 O-Ring Seal (27) Location for the 6V-9829 Caps (28) Location for the 6V-9832 Cap

11. Remove the hoses from the implement control valve that are listed in Illustration 6. Then, install the caps that are listed in Illustration 6.

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Illustration 7	g01166858
(17) 261-3578 Hose As (20) 261-3584 Hose As (29) Location for a 6V-9829 Cap (30) Location for a 9S-4181 Plug and a 7M-8485 O-Ring Seal

12. Remove the hoses from the implement control valve that are listed in Illustration 7. Then, install the caps that are listed in Illustration 7.

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Illustration 8	g01166908
(31) 247-4099 Tube As (32) 165-4933 Elbow As

13. Remove tube (31) and elbow (32) that is listed in Illustration 8.

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Illustration 9	g01159094
259-1068 Film

14. Remove the 259-1068 Film that is located on the inside of the right hand cab window.

Installation Procedure

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Illustration 10	g01167029
(1) 261-1437 Hose As (2) One 6V-8997 Union , two 6V-9746 O-Ring Seals and one 2P-1293 Locknut (3) 260-2002 Hose As (4) 260-3186 Hose As (5) 260-3185 Hose As

1. Attach unions and locknuts onto the bulkhead plates of the boom and stick. See Illustration 10 for the location of components. Tighten the locknuts to a torque of 91 ± 10 N·m (67 ± 7 lb ft).

2. Attach one identification tag to each end of each hose in Table 4.
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   Table 4

   Qty	Tag part number	Tag Description	Hose Part Number
   2	205-0828	"Saw Return"	260-2002
   2	205-0827	"Saw Supply"	260-2002
   2	205-0828	"Saw Return"	260-3185
   2	205-0827	"Saw Supply"	260-3185
   2	205-0828	"Saw Return"	260-3186
   2	205-0827	"Saw Supply"	260-3186
   2	205-0828	"Saw Return"	261-1437
   2	205-0827	"Saw Supply"	261-1437

3. Attach the hoses to the boom and stick. See Illustration 10 for hose locations.

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Illustration 11	g01167075
(1) 261-1437 Hose As (2) One 6V-8997 Union , two 6V-9746 O-Ring Seals and one 2P-1293 Locknut (6) 164-6862 Tee Gp

4. Attach one 261-1437 Hose As (1) at location (2) with one 6V-8997 Union , two 6V-9746 O-Ring Seals and one 2P-1293 Locknut . Attach the other 261-1437 Hose As (1) to existing tee (6) .

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Illustration 12	g01158958
265-0830 Film

5. Install 265-0830 Film on the inside of the right hand cab window.

6. Load the application software for a hot saw configuration onto your MDM Display.
   • 260-0891 TK English/Spanish

   • 260-0893 TK English/French

Reference: For information on loading software, refer to Systems Operation, RENR6345, "IQAN Monitoring & Control System" Flash Software or Upgrading the IQAN Machine System.