Installation of the Angling Blade Bulldozer on the D7E Track-Type Tractor{6050, 6701} Caterpillar


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Installation of the Angling Blade Bulldozer on the D7E Track-Type Tractor{6050, 6701} [REHS4372]
WORK TOOLS
BLADE GP
Installation of the Angling Blade Bulldozer on the D7E Track-Type Tractor{6050, 6701}
1.1. Introduction
2.1. Warnings
3.1. Weights
4.1. Procedure for Shimming
5.1. Necessary Parts
6.1. Installation Procedure
7.2. Installation of Trunnions
8.3. Necessary Parts
9.2. Installation of the Bulldozer C-frame to the Tractor
10.3. Necessary Parts
11.2. Installation of the Bulldozer Blade to the C-frame
12.3. Necessary Parts
13.2. Installation of the Bulldozer Brace Groups
14.3. Necessary Parts
15.2. Installation of the Tilt Lines
16.3. Necessary Parts
Track-Type Tractor:
D7E (S/N: MDB1-UP)

Introduction

This Special Instruction provides the procedure for installation of the angling blade Bulldozer on the D7E Track-Type Tractor.

When you have completed this procedure, prepare the machine for service. Refer to the Operation and Maintenance Manual.

Note: Do not perform any procedure in this Special Instruction until the information has been read and understood.

ReferenceService Manual, Parts Manual, Operation and Maintenance Manual.

Warnings

------ WARNING! ------

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.

----------------------

------ WARNING! ------

Personal injury or death can result from sudden machine movement.

Sudden movement of the machine can cause injury to persons on or near the machine.

To prevent injury or death, make sure that the area around the machine is clear of personnel and obstructions before operating the machine.

----------------------

------ WARNING! ------

When a hoist is used to lift any part or assembly, stand clear of the area under the part being raised. Always make sure that the hoist has adequate lifting capacity and the wire cable is not damaged.

Failure to follow this instruction could lead to injury or death.

Approximate weights of the components are shown in the table which follows.

----------------------


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.



NOTICE

Maintain the oil in the hydraulic system at the correct level to prevent pump cavitation.



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.


Note: No oil or lubricant is recommended on new fasteners. When fasteners are reused, the fasteners should be cleaned before assembly. Lightly oil reused fasteners before assembly. Instructions are given when lubrication is required.

Weights

Table 1
Weights for Specified Components of the Bulldozer Blade    
Description     Weight    
Angling Blade     1610 kg (3550 lb)    
C-Frame Group    
1368 kg (3016 lb)    
Arm As    
76 kg (167.5 lb)    
Angling Cylinder    
100 kg (220 lb)    
Trunnion (each trunnion)    
21.5 kg (47 lb)    

Procedure for Shimming




    Illustration 1g00292740

  1. Remove all of the shims from C-frame (1) .

  1. Remove excess rust and paint from the contact surfaces of these components: the C-frame, the cap and the shims.

  1. Install C-frame (1) and cap (2) on trunnion (3) without shims. Use the largest torque from the following list in order to tighten the bolts.

    • 5 percent of the specified torque

    • 50 N·m (37 lb ft)

    Maintain equal distance on both space (A) and space (B) of cap (2). Observe spaces (A) and (B) in order to determine the required number of shims.

  1. Loosen the bolts that are on cap (2). As needed, insert shims into spaces (A) and (B). When possible, use an equal number of shims for spaces (A) and (B) .

    Note: The number of shims at space (A) must be within one of the number of shims at space (B). For example, if space (A) has eight shims, space (B) must have seven, eight, or nine shims.

  1. Add one additional shim to space (A). Add one additional shim to space (B) .

  1. Tighten the bolts that are on cap (2) to the proper torque.

  1. The C-frame should move freely on the trunnion. The specified minimum tolerance is 0.25 mm (0.010 inch).

    Note: It may be necessary to remove one or more shims after a short time. Wear can be caused by normal vibrations of the surface or variations in the thickness of the paint.

Necessary Parts

Table 2
Required Parts    
Item     Part Number     Description    
(1)     248-5425     Cylinder Mounting Gp    
(1)     258-7470     Lift Cylinder and Lines Gp    
6     307-6145     Angle Blade and Edge Gp    
7     346-5414     Linkage Option Ar    
( 1 ) The lift cylinder and the lines group should already be mounted on the tractor.

Installation Procedure

Installation of Trunnions

Necessary Parts

Table 3
244-1977 Bulldozer Trunnion Gp  (1) (2)    
Item     Qty     Part Number     Description    
8     28     7X-2554     Bolt    
9     28     8T-4122     Hard Washer    
10     2     259-4818     Trunnion    
( 1 ) Part of 346-5414 Linkage Option Ar
( 2 ) Fourteen bolts on each side. Bolts are 80 mm (3.15 inch) long.



    Illustration 2g01961310

    Note: Clean all surfaces of the parts that will be installed. Remove all paint from the mating surfaces.

  1. Install trunnion (10) with 14 bolts (8) and 14 washers (9).

  1. Tighten the bolts to a torque of 240 ± 40 N·m (175 ± 30 lb ft).

  1. Perform step 1 and step 2 for the other side of the machine.

Installation of the Bulldozer C-frame to the Tractor

Necessary Parts

Table 4
307-3590 C-Frame Group  (1)    
Item     Qty     Part Number     Description    
11     52     9W-7602     Shim    
12     2     193-3063     Bearing Cap    
13     4     195-6283     Square Nut    
14     1     307-3588     Frame As    
15     1     313-2619     Pivot Pin    
16     1     1U-0725     Retainer    
17     4     3E-9850     Bolt    
18     2     7X-2562     Bolt    
19     4     9X-8258     Washer    
( 1 ) Part of 346-5414 Linkage Option Ar



    Illustration 3g02088909

  1. Measure the distance from the ground to the center of the trunnion on the track roller frame.

  1. Raise the C-frame to the height that was measured in Step 4. Support the rear of the arms of the C-frame with wood blocks.

  1. Move the machine into position between the arms of the C-frame. Stop the engine.

  1. Use shims (11), two bolts (17), two washers (19), and two nuts (13) in order to install cap (12) on each side of the machine. Make sure that the chamfer on the nuts aligns with the radius on the C-frame. For instructions on shimming, refer to ""Procedure for Shimming" ". Tighten the bolts to a torque of 1800 ± 200 N·m (1330 ± 150 lb ft).

    ------ WARNING! ------

    Personal injury or death can result if the lift cylinder is not secured when the lift cylinder is being attached to the blade or detached from the blade. The lift cylinders can rotate freely rearward when the cylinder rod is retracted.

    Secure the lift cylinder until the cylinder rod is extended in order to prevent the lift cylinder from rotating rearward.

    ----------------------



    Illustration 4g01961814

  1. Use a cap, shims, four bolts, and four nuts to connect the lift cylinder to the bulldozer C-frame. For instructions on shimming, refer to ""Procedure for Shimming" ". Tighten the nuts to a torque of 900 ± 100 N·m (665 ± 75 lb ft).

Installation of the Bulldozer Blade to the C-frame

Necessary Parts

Table 5
346-5414 Linkage Option Ar    
Item     Qty     Part Number     Description    
20     1     6Y-6752     Pin    
21     1     244-1977     Bulldozer Trunnion Gp    
22     4     273-4887     Retainer    
23     4     295-8910     Pin    
24     1     307-3590     C-Frame Group    
25     1     309-4058     Bulldozer Brace (RH)    
26     1     309-4127     Bulldozer Brace (LH)    
27     8     312-4902     Spacer    
28     1     313-2607     Tilt Cylinder Lines Gp    
29     1     313-2654     Retainer    
30     2     8T-4779     Bolt    
31     8     8T-5460     Bolt    

  1. Raise the bulldozer blade. Block the blade in an upright position.



    Illustration 5g02089756

  1. Install pivot pin (15) onto the blade by using pin (20), retainer (29), and two bolts (30) .



    Illustration 6g02721670

  1. Install the pivot pin into the C-frame (24). Assemble retainer (16) with two bolts (18) .

Installation of the Bulldozer Brace Groups

Necessary Parts

Table 6
309-4058 Bulldozer Brace (RH) and 309-4127 Bulldozer Brace (LH)  (1)    
Item     Qty     Part Number     Description    
32     2     4F-0255     Pin    
33     2     4F-1252     Pin    
34     2     4T-5495     Ball Stud    
35     2     5P-0370     Lock Pin    
36     52     8E-5701     Shim    
37     2     160-6306     Bearing Cap    
38     4     251-8202     Square Nut    
39     1     309-1181     Arm As (RH)    
40     1     309-3539     Arm As (LH)    
41     2     309-3753     Eye Assembly    
42     2     312-4474     Pin    
43     2     312-8518     Bulldozer Tilt Cylinder    
44     2     3B-4627     Cotter Pin    
45     4     7X-2532     Bolt    
46     4     8T-4123     Washer    
( 1 ) Part of 346-5414 Linkage Option Ar



    Illustration 7g03065417

  1. Assemble ball studs (34) onto the end of the arm assemblies (39) and (40) by using two caps (37), four bolts (45), four washers (46), and four square nuts (38). Install shims (36) as required. For instructions on shimming, refer to ""Procedure for Shimming" ". Make sure that the chamfer on the nuts aligns with the radius on the push arm.

    Note: The arm assemblies are not symmetrical. The ball studs are oriented toward the C-frame. Make sure that the correct arm assembly is installed on each side.




    Illustration 8g01961713

    (C) 1673.8 ± 2 mm (65.90 ± 0.08 inch)

  1. Assemble eye assembly (41) into the end of each arm assembly. Adjust both arm assemblies to dimension (C). Measure dimension (C) from the end of the bearing to the center of the eye assembly.

    Note: This dimension is a critical dimension.




    Illustration 9g01961637

  1. Install tilt cylinder (43) to the left arm assembly by using pin (32), pin (42), and cotter pin (44) .

  1. Install the left arm assembly to the bulldozer blade by using four spacers (27), two pins (23), two retainers (22), and four bolts (31) .

    Note: The spacers (27) should be installed with one above each eye assembly (41) and one below each eye assembly.




    Illustration 10g01961697

  1. Install the left arm assembly to the C-frame by using pin (33) and lock pin (35) .

    Note: Assemble pin (33) between the two small blocks on the bracket of the C-frame.

  1. Repeat step 14 through 16 for right arm assembly (40) .

Installation of the Tilt Lines

Necessary Parts

Table 7
313-2607 Tilt Cylinder Lines Gp  (1)    
Item     Qty     Part Number     Description    
47     4     5S-8712     Block    
48     1     313-7631     Guard    
49     1     313-7632     Tube As    
50     1     313-7633     Tube As    
51     1     313-7634     Tube As    
52     1     313-7635     Guard As    
53     2     313-7636     Hose As    
54     2     313-7637     Hose As    
55     2     313-7638     Hose As    
56     1     348-2224     Guard    
57     4     1P-3702     Rectangular Seal    
58     4     1P-4576     Half Flange    
59     2     4J-0520     O-Ring Seal    
60     2     4J-5267     O-Ring Seal    
61     4     8T-4186     Bolt    
62     4     5P-7466     Clip    
63     4     5P-7467     Clip    
64     4     5P-8112     Grommet    
65     2     6V-1876     Grommet    
66     4     6V-9746     O-Ring Seal    
67     1     7G-3832     Grommet    
68     1     7G-3833     Clip    
69     1     7G-3834     Clip    
70     2     7G-5984     Clip    
71     2     7G-5985     Clip    
72     4     8T-4910     Bolt    
73     4     7X-2559     Bolt    
74     16     7X-7729     Washer    
75     16     8T-4121     Washer    
76     8     8T-4122     Washer    
77     8     8T-4133     Nut    
78     16     8T-4182     Bolt    
79     6     8T-4195     Bolt    
80     2     8T-4196     Bolt    
81     4     8T-4223     Washer    
82     4     8T-4778     Locknut    
83     8     8T-4896     Washer    
84     8     8T-9403     Half Flange    
85     8     9B-7237     Bolt    
( 1 ) Part of 346-5414 Linkage Option Ar



    Illustration 11g01961760

  1. Assemble tubes (49), (50), (51) to the back of the bulldozer blade by using four blocks (47) and four bolts (61) .



    Illustration 12g01961776

  1. Assemble hoses (53), and (54) to the tilt cylinders by using two seals (57), four flange halves (84), eight bolts (78), and eight washers (75) .

  1. Assemble the other end of the hoses to the tubes that were installed to the back of the blade in step 18. Use two seals (66) .

  1. Assemble the hose clip near the midpoint of the hoses by using clip (70) and (71), grommet (65), two bolts (79), two nuts (77), and four washers (74) .

  1. Repeat step 19 through 21 for the right tilt cylinder.



    Illustration 13g01999733

  1. Assemble guard (56) to the tilt cylinder by using two bolts (73), four washers (76), and two nuts (82) .

  1. Assemble the head end hose to guard (56) by using clips (62) and (63), grommet (64), bolt (80), nut (77), and washer (74) .

  1. Repeat the following steps 23 and 24 for the right tilt cylinder. Assemble guard (48) on the right-hand cylinder.



    Illustration 14g02095444

  1. Assemble the 90° end of the two hoses (55) to the front of the tractor by using existing hardware. Use two new o-rings (59) .

  1. Secure the two hoses to the front of the tractor by using the existing hardware, clips (62) and (63), and grommet (64) .



    Illustration 15g02095533

  1. Assemble the other end of two hoses (55) to the tubes that were assembled to the back of the blade in step 18. Use two seals (60), four flange halves (58) eight washers (83), and eight bolts (85) in order to connect the hoses to the tubes.

    Note: The upper hose should be assembled to the tube on the left. The lower hose should be assembled to the tube on the right.

  1. Assemble the hose clip by using clip (68) and (69), grommet (67), two bolts (79), two nuts (77), and four washers (74) .



    Illustration 16g02095655

  1. Assemble guard (52) onto the back of the blade by using four bolts (72), and four washers (81) .

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