Installation of the Variable Pitch, Angle, and Tilt Blade with or without Blade Slope Assist on a D6N Track-Type Tractor {6052, 6060, 6063, 6701} Caterpillar

Track-Type Tractor

D6N (S/N: MG51-UP; GB61-UP; PBA1-UP; SGG1-UP; CBL1-UP; NJN1-UP; LJR1493-UP; PER1-UP; GHS1800-UP; P5T1-UP; MLW1100-UP; P5W1-UP)

Introduction

This Special Instruction provides the installation procedure for the Variable Pitch, Angle, and Tilt Blade on D6N LGP and D6N XL machines.

This Special Instruction also provides the installation procedure for the Blade Slope Assist on machines that are equipped with this feature.

After the assembly is complete, prepare the machine for operation. Refer to the Operation and Maintenance Manual for your machine.

Note: Do not perform any procedure in this Special Instruction until you read the information and you understand the information.

Reference: Service Manual, Parts Book, and Operation and Maintenance Manual

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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.

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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
Clean all surfaces and remove burrs from all areas where parts are to be installed. Chase all tapped holes used for mounting purposes.

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NOTICE
When a hoist is used to lift any part or assembly, stand clear of the area. Always make sure that the hoist has the correct capacity. Approximate weights of the components are shown in Table 1

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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, PERJ1017, "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.

Note: Do not coat any fasteners with oil or with grease prior to tightening. Instructions are given when lubrication is required.

Note: The variable pitch, angle, and tilt blade is installed on a D6N LGP or a D6N XL machine. The C-frame is already installed at the factory.

Reference: For installation or removal of the C-frame refer to the Disassembly and Assembly for your machine.

Approximate Weights

Table 1

Weights for Specified Components of the Variable Pitch, Angle, and Tilt Bulldozer
Part Number	Description	Weight
358-2210	Angling Blade	1054 kg (2324 lb)
359-3410	Angling Blade	1227 kg (2705 lb)
359-3349(1)	Angling Blade	1491 kg (3287 lb)
358-2259(1)	Angling Blade	1253 kg (2762.38886 lb)

(1)	A foldable blade and shipped from the factory installed on the machine.

Necessary Parts

Table 2

358-2210 Angling Blade(1) 359-3410 Angling Blade(2) 359-3349 Angling Blade(3) 358-2259 Angling Blade(4)
Item	Qty	Part Number	Description
1	1	455-0760(1)	Blade As
		455-0770(2)
		455-0820(3)
		455-0800(4)
2	1(1)(2)	3B-8489	Grease Fitting
	3(3)(4)
3	3(1)(2)(4)	4T-0231	Retainer
	5(3)
4	1(1)(2)	9J-4782	Protector
	3(3)(4)
5	2	089-8249	Spacer
6	1	104-4817	Pin
7	1	223-3279	Retainer
8	6(1)(2)	259-2968(1)(2)	Spacer
	4(3)
	2(3)	466-2917(3)(4)
	6(4)
9	6	348-6260	Shim
10	1	477-0065	Plate As
11	3	358-2227	Pin
12	2	383-3364(1)(2)(4)	Bearing Cap
		383-3377(3)
13	4	5P-1076	Hard Washer
14	1	8T-4123	Washer
15	8	8T-4167	Hard Washer
16	4(1)(2)	8T-4183	Bolt
	6(3)(4)
17	3(1)(2)(4)	8T-4223	Hard Washer
	5(3)
18	3(1)(2)(4)	8T-4956	Bolt
	5(3)
19	1	8T-5460	Bolt
20	8	8T-5878	Bolt
21	1	450-3992	Cover
22	2	8T-4189	Bolt
23	2	8T-4224	Hard Washer
24	1	433-6936	Inertial Sensor
25	2	8T-2922	Bolt
26	3	067-2551	Clip
27	3	8T-4121	Hard Washer
28	2	8T-4137	Bolt
29	1	8T-4195	Bolt

(1)	Use for D6N XL machines.
(2)	Use for D6N LGP machines.
(3)	Use for D6N LGP machines with a foldable blade.
(4)	Use for D6N XL machines with a foldable blade.

Table 3

358-2210 Angle Blade and Edge Gp and 358-2259 Angling Blade(1) 359-3410 Angle Blade and Edge Gp and 359-3349 Angling Blade(2)
Item	Qty	Part Number	Description
30	1	476-6781(1)	Sensor Harness As
		480-7526(2)

(1)	Use for D6N XL machines.
(2)	Use for D6N LGP machines with a foldable blade.

Machine Preparation

Preparation of the Blade and the Joint

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Illustration 1	g03853172

1. Attach grease fitting (2) to the blade.

2. Thoroughly clean the surface of trunnion bearing (A). Remove any paint and debris from the surface of the trunnion bearing. Do not apply grease to the trunnion bearing now.
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   Illustration 2	g03853182

3. Thoroughly clean the surface of trunnion ball (B). Remove any paint and debris. Do not apply grease to the trunnion ball.

Procedure for Mounting the Blade Group on the Machine

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Illustration 3	g03853197

1. Place the C-frame (C) in a horizontal position with suitable blocking below the C-frame (C). Refer to Illustration 3.

2. Use an appropriate lifting device to raise blade (1) to an upright position. The blade must be in the upright position for this procedure. Refer to Table 1 for the approximate weights of the components.

3. Secure blade (1) with an appropriate support device. Use an appropriate lifting device or use blocks to stabilize blade (1) in the upright position.

   Note: A block that is under the trunnion bearing must be 6 inches tall. The block should nearly contact the trunnion bearing to the blade weld.

4. Before the installation of the shims, preassemble the trunnion assembly without the shims. Use an appropriate lifting device to maneuver the blade.

   Note: Do not apply a load to the blade with the machine while the blade is being supported by a hoist. Damage to the blade may result.

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   Illustration 4	g03853204

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   The blade can move or fall when the mounting pins are removed. To prevent bodily injury, block the blade or support the blade with a hoist. Keep all personnel away from the blade.

5. Lift the blade with an appropriate lifting device. Move trunnion bearing (A) to trunnion ball (B) on the C-frame.

6. Mount trunnion bearing (A) onto trunnion ball (B).
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   Illustration 5	g03853210

7. Install the split rings (12). Install eight washers (15) and eight bolts (20) in split rings (12). THE BOLTS SHOULD ONLY BE TIGHTENED BY HAND AT THIS TIME. When you install the split rings, ensure that there is an even gap (D) between each split ring (12) and bearing (A).

8. Measure dimension (D) between the surface of the trunnion bearing and the split ring.

9. Remove eight bolts (20) and eight washers (15). Remove both split rings (12).

10. Use an appropriate lifting device to back off the blade so that the trunnion bearing is no longer mounted on the trunnion ball.
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    Illustration 6	g03853262

11. Apply grease to the inside of trunnion bearing (A). Apply grease to both interior surfaces of two-piece split ring (12).
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    Illustration 7	g03853265

12. Install shims (9). Add one shim more than dimension (D). (See Step 7 and Illustration 5.) Install the upper split ring (12) with four washers (15) and four bolts (20). Do not tighten now.

13. Lift the blade with an appropriate lifting device. Move trunnion bearing (A) to trunnion ball (B) on the C-frame.

    Note: If necessary, further loosen one bolt or more to maneuver the trunnion bearing onto the trunnion ball. Adjust the tightness of bolts (20), as needed. If necessary, remove the two outer bolts to facilitate the mounting of the trunnion bearing.

14. Mount trunnion bearing (A) onto trunnion ball (B).
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    Illustration 8	g03853282

15. Install shims (9). Add one shim more than dimension (D). (See Step 8 and Illustration 5.) Install the lower split ring (12) with four washers (15) and four bolts (20).

    Note: Do not torque the bolts at this step. Damage to the cap bearing could occur.

16. Test for proper shimming by manually moving the blade assembly. The blade should move without difficulty, binding, or play.

17. Grease fitting (2). After the fitting has been greased, install protector (4) on fitting (2).
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    Illustration 9	g03853316

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    Illustration 10	g03853320
    (F) Nominal position - 60 degree cutting edge in the middle position (G) Retracted position - 56 degree cutting edge (H) Extended position - 62 degree cutting edge

18. Position the link assembly (E) on the blade.

19. Use pin (11), and two spacers (8) to connect the link assembly.

20. Use retainer (3), washer (17), and bolt (18) to secure pin (11).

21. Place blocks under the corners of the blade. Lower the blade onto the blocks.

22. Disconnect the hoist from the blade.
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    Illustration 11	g03853327

23. Set the length of the pitch link for job conditions.

24. Remove pin-lock (K).

25. Use a large adjustable wrench to turn the turn buckle.

    While facing the left-hand end of the link, rotate the turn buckle sleeve counterclockwise to shorten the link. This adjustment is used for fine grading or soft material conditions. The cutting edge angle will be approximately 56 degrees. Rotate the turn buckle sleeve clockwise to extend the link for tougher material conditions. The cutting edge angle will be approximately 60 degrees. Use the rod assembly to gage the pitch link setting.

26. Grease the four grease fittings that are on the pitch link assembly. After the fittings have been greased, install protectors (J) on all four of the grease fittings.

27. Replace pin-lock (K).
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    Illustration 12	g03858907

28. Install plate assembly (10) using four washers (13), and four bolts (16).

Attaching the Tilt and Angle Cylinders to the Blade

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Illustration 13	g03853335

1. Connect the angle cylinders to the blade using two spacers (8), pin (11), retainer (3), and bolt (18).

2. Repeat for the other side.
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   Illustration 14	g03853345

3. Connect the tilt cylinder to the blade using two spacers (5), pin (6), retainer (7), washer (14), and bolt (19).
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   Illustration 15	g03853408

4. Tighten four of bolts (20) to a torque of 800 ± 100 N·m (590 ± 74 lb ft).

5. Reposition the blade and tighten four of bolts (20) to a torque of 800 ± 100 N·m (590 ± 74 lb ft).

Slope Assist Installation and Calibration (S/N: GB61-UP; MG51-UP; NJN1-UP; SGG1-UP)

Installation of Slope Assist

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Illustration 16	g06395472
Make sure that the harness is not twisted between the first P clip and the connector (circled in red).

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Illustration 17	g06395298
There is a lock on the connector and IMU sensor.

1. Correctly assemble harness (30) on sensor (24) before routing the harness along the blade.

2. Attach both harness (30) and sensor (24) to the back of the blade with three clips (26), washers (27), two bolts (28), and bolt (29).
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   Illustration 18	g03858913

3. Install cover (21) using two washers (23), and two bolts (22).

   Note: To change the Slope Assist configuration, the engine speed must be zero.

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   Illustration 19	g06002731
   Slop assist enable through Cat ET.

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   Illustration 20	g06003410
   Slope assist enable through the onboard monitor.

   Note: Service password from the factory is 1234.

4. Using either Cat ET or the service menu on the monitor, enable slope assist.

5. Before, proceeding with the calibrations place the machine on a hard flat surface.

Valve Calibration

1. Enter the service menu on the monitor.

2. Select the "Valve Calibration".

3. Follow the steps on the monitor to complete the "Valve Calibration".

   Note: The following is an example of the screens that are seen during the "Valve Calibration".

Illustration 21	g06002630

Illustration 22	g06002634

Blade Sensor Calibration

Table 4

Required Tools
Part Number	Description
5P-3920	Steel Ruler 304.8 mm (12 inch)
	Digital Level that displays slope in percentage (1)

(1)	610 mm (24 inch) or longer recommended

Note: All measurements will be in either meters or percentage.

1. Access the "Grade Control Menu" on the monitor system.

2. Select "Blade Sensor Calibration".

3. Select "Calibrate Sensor".

4. Follow the steps in the calibration procedure.

   Note: The following is an example of the screens that are seen during the "Blade Sensor Calibration".

Illustration 23	g06001256

Illustration 24	g06002741

Illustration 25	g06002742

Illustration 26	g06002763

Illustration 27	g06002798

Illustration 28	g06002814

Illustration 29	g06002816

Installing Foldable Blade (If Equipped)

Table 5

359-3349 Angling Blade(1) 358-2259 Angling Blade(2)
Item	Qty	Part Number	Description
1	1	4T-0231(1)	Retainer
2	2	257-0205(1)	Dowel Pin
		437-9738(2)
3	2	266-4761	Pin As
4	1	358-2260(1)	Support Arm As
		383-3376(2)
5	1	370-5549(1)	Pin
6	1	455-0822(1)	Blade As
		455-0801(2)
7	2	2U-9234	Bushing
8	2	7D-1649	Hard Washer
9	3	8D-3791	Pin
10	2	8T-4183	Bolt
11	1	8T-4223(1)	Hard Washer
12	1	8T-4956(1)	Bolt
13	1	358-2270(1)	Bracket As

(1)	Use for D6N LGP machines with a foldable blade.
(2)	Use for D6N XL machines with a foldable blade.

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Illustration 30	g03859725

1. Install blade (6) using two pins (3), two bushings (7), two washers (8), and two bolts (10).
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   Illustration 31	g03859882

2. Install two dowel pins (2), and two pins (9).
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   Illustration 32	g03859900

3. Install bracket assembly (13) using retainer (1), pin (5), washer (11), and bolt (12)
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   Illustration 33	g03859933

4. Install support arm (4) using pin (9).

Foldable Blade Instructions

Introduction

The following outlines the basic steps and procedure to use to fold the left side of a 359-3349 Angling Blade and 358-2259 Angling Blade.

Note: All safety information, warnings, and instructions must be read and understood before performing any operation or any maintenance procedures.

Shipping Information

Table 6

359-3349 Angling Blade(1) 358-2259 Angling Blade(2)
Blade Weight	1690 kg (3725 lb)(1)
	1690 kg (3725 lb)(2)
Blade Width	4082 mm (160.7 inch)(1)
	3000 mm (118.1 inch)(2)
Blade Height	1277 mm (50.3 inch)(1)
	1217 mm (47.9 inch)(1)
Shipping overall width	3000 mm (118.1 inch)(1) with blade folded
	3000 mm (118.1 inch)(1) with blade folded

(1)	LGP
(2)	XL

Description of the Foldable Blade

Table 7

359-3349 Angling Blade(1) 358-2259 Angling Blade(2)
Item	Qty	Part Number	Description
1	2	257-0205(1)	Dowel Pin
		437-9738(2)
2	3	8D-3791	Pin
3	1	358-2260(1)	Support Arm As
		383-3376(2)
4	1	177-4548	Pin

(1)	LGP
(2)	XL

Illustration 34	g02732085
Working position

Illustration 35	g02732087
Transportation position

Note: In transportation position, the blade must be parallel to the ground.

Procedure to Fold the Blade

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Illustration 36	g03853462

1. Unlock the removable side of the blade.

   1. Slightly raise the blade to clear the blade from the ground.

   2. Remove the pin (2) and pin (1).

   3. Pull out bar (3) after having removed both of the retention cotter pins.
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   Illustration 37	g03853463

2. Fold the removable side of the blade. Place the end of bar (3) in the hole at the top left corner of the blade and push to fold the blade.
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   Illustration 38	g03853465

3. Place bar (3), pin (1), and pin (2) as shown in Illustration 38 to lock the removable side of the blade.

   Note: Proceed to Steps 4 through 7 for LGP machines only.

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   Illustration 39	g03853560

4. Remove the left-hand pin (4) from the left link. Refer to Illustration 39 for the correct pin to remove.
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   Illustration 40	g03853563
   Left-hand side pin placement

   Note: The angling cylinders must be actuated slowly and without jerks to avoid hitting the blade.

5. From the cab, block the blade in flat position on the ground and actuate the angling cylinders to the right to place the link in the transportation position. Refer to Illustration 40 for the transportation position for the link.

6. Insert the left-hand pin as shown in Illustration 40.

7. From the cab, raise the blade slightly and swivel the blade fully to the left.

Procedure to Unfold the Blade

Note: Perform Steps

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Illustration 41	g03853563
Left-hand side pin placement

1. Remove the left-hand pin from the left link.

2. From the cab, slightly raise the blade and make the blade swivel to the right until the blade is perpendicular to the machine centerline.
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   Illustration 42	g03853465

3. Remove pin (1), pin (2), and bar (3) to unlock the removable side of the blade.
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   Illustration 43	g03853463

4. Unfold the removable side of the blade. Place the end of bar (3) in the hole at the top left corner of the blade and push to unfold the blade.
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   Illustration 44	g03853462

5. Lock the removable side of the blade.

   1. Place bar (3) at the rear of the blade and attach with two cotter pins.

   2. Install pin (1), and pin (2) to secure the blade in the working position.
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   Illustration 45	g03853560
   Left-hand side pin placement

6. From the cab, block the blade in flat position on the ground and actuate the angling cylinders to the left to place the links in working position.

7. Insert the pin to lock the link and the blade in working position. Refer to Illustration 45 for the correct location of the link.