Installation of the Ladder On the D11R and D11T Track-Type Tractor {7254} Caterpillar

Installation of the Ladder On the D11R and D11T Track-Type Tractor {7254}

Usage:

D11R 7PZ

Track-Type Tractor:: D11R (S/N: AAF1-UP; 8ZR1-UP; 9TR1-UP; 9XR1-UP; 7PZ1-UP); D11T (S/N: GEB1-UP; TPB1-UP)

Introduction

This Special Instruction provides an installation procedure for the ladder on the D11R and the D11T Track-Type Tractors.

Refer to the necessary parts list.

Do not perform any procedure that is outlined in this publication until you have read the information and you understand the information. Do not order any parts until you have read the information and you understand the information.

ReferenceRefer to the following manuals:

Special Instruction, REHS4359, "Retrofitting the D11R for the Access Ladder"
Service Manual
Parts Book
Operation and Maintenance Manual

Show/hide table

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.

Show/hide table

NOTICE

Do not allow any dirt or foreign material to get into the power train system during assembly, connection of lines, when components are filled with fluid, or during any maintenance operation.

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

Show/hide table

NOTICE

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

Show/hide table

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: The parameter in ET "Left Ladder Installation Status" must be toggled to ON for a level III warning when the ladder is lowered and the parking brake is disengaged.

Approximate Weights

Show/hide table

NOTICE

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

Show/hide table

Table 1
Weights for the 246-2042 Ladder
Part Number	Description	Weights
359-6795	Hinge Assembly	64 kg (140 lb)
260-1971	Bracket Assembly	6 kg (13 lb)
270-4902	Ladder Assembly	79 kg (175 lb)
351-7936	Handrail Assembly	14 kg (30 lb)
354-0936	Handrail Assembly	13 kg (28 lb)
275-0480	Plate Assembly	1 kg (2 lb)
310-3972	Support Assembly	36 kg (80 lb)
310-3977	Latch (Ladder Assembly)	27 kg (60 lb)
313-4172	Plate	3 kg (7 lb)

Necessary Parts

Show/hide table

Table 2
246-2042 Ladder and Fender Arrangement
Item	Part Number	Description	Quantity
1	359-6795	Hinge Assembly	1
2	260-1971	Bracket Assembly	1
3	270-4902	Ladder Assembly	1
4	351-7936	Handrail Assembly	1
5	354-0936	Handrail Assembly	1
6	275-0480	Plate Assembly	1
7	310-3972	Support Assembly	1
8	310-3977	Latch (Ladder Assembly)	1
9	313-4172	Plate	1
10	198-4778	Hard Washer	8
11	5P-1075	Hard Washer	1
12	7X-2563	Bolt	7
13	8T-4121	Hard Washer	46
14	8T-4123	Hard Washer	8
15	8T-5439	Hard Washer	3
16	8T-4131	Nut	4
17	8T-4136	Bolt	9
18	8T-4183	Bolt	4
19	8T-4194	Bolt	9
20	8T-4195	Bolt	36
21	8T-4223	Hard Washer	11
22	8T-4244	Nut	6
23	8T-4910	Bolt	4
24	8T-9378	Bolt	1
25	277-8989	Plate	1
26	204-2281	Tie Strap	2
27	261-4695	Plate	4
28	277-4737	Hose Assembly	1
29	277-4738	Hose Assembly	1
30	130-4841	Grommet	2
31	148-8311	Adapter Assembly	1
32	148-8345	Connector Assembly	2
33	148-8364	Elbow Assembly	2
34	7X-7729	Washer	8
35	149-7372	Abrasion Sleeve	65 cm (25.591 inch)
36	5G-7820	Magnet Assembly	1
37	116-5710	Grommet	1
38	157-1364	Switch Assembly	1
39	174-7165	Position Switch Group	1
40	241-6942	Film	1
41	170-2986	Grommet	2
42	4M-6424	Bolt	2
43	6T-9807	Grommet	1
44	6V-9189	Locknut	4
45	8C-8585	Screw	2
46	7K-1181	Cable Strap	8
47	8T-4224	Hard Washer	10
48	8T-4908	Bolt	4
49	9K-0700	Grommet	1
50	312-8921	Clamp	4
51	321-0583	Support Assembly	1
52	321-7771	Handrail Assembly	1
53	5P-8444	Grommet	4
54	9X-2042	Screw	2
55	8T-4186	Bolt	8
56	8T-4196	Bolt	6
57	276-3449	Cover	1
58	346-3060	Plate	1
59	7I-3003	Shim Pack	2
60	134-0165	Washer	2
61	199-4272	Hard Washer	2
62	5P-1076	Hard Washer	2
63	7X-0584	Hard Washer	2
64	7B-1251	Grommet	1
65	6V-9156	Mirror Mount	1
66	7X-7729	Washer	3
67	8T-2561	Hard Washer	2
68	252-4730	Bracket Assembly	1

General Installation Procedure for the Ladder

Show/hide table




Illustration 1	g02339997

Fasten the crimped end of handrail (4) to ladder (3) with two bolts (18), two washers (63), two washers (62) and two nuts (22). Install handrail (4) and plate assembly (6) to ladder (3) with 12 bolts (20) and 12 washers (13) .Install handrail (5) to ladder (3) with 12 bolts (20) and 12 washers (13)

Show/hide table




Illustration 2	g01919993

Install plate (58) to ladder (3) with two bolts (48), two washers (47), and two locknuts (44). Install magnet (36) to plate (58) with two bolts (48), four washers (47), and two locknuts (44) .

Show/hide table




Illustration 3	g01621645

Remove tread plate (P) and discard the tread plate.

Remove the mounting bolt from the light that is located at the rear of the left-hand fender. Discard the mounting bolt.

Show/hide table




Illustration 4	g01539277

Install plate (25) with the screws from the former plate and two screws (45) .

Show/hide table




Illustration 5	g01511355

Install support assembly (7) to the left-hand fender and the rear crossbeam with seven bolts (12), eight washers (14), three washers (15), and four nuts (16). Use one bolt (24) and one washer (11) in order to attach the light to the rear of the left-hand fender.

Show/hide table




Illustration 6	g01511534

Install handrail (52) to support (51) with four grommets (53), four clamps (50), eight bolts (55), and eight washers (13) .

Show/hide table




Illustration 7	g01511450

Install support assembly (51) to the left-hand fender with six bolts (56) and six washers (13) .

Show/hide table




Illustration 8	g01533258

Route the harness from the battery box through handrail assembly (52) and up to switch (38). Install grommet (41) to handrail assembly (52). Install grommet (43) and tie strap (46) .

Show/hide table




Illustration 9	g01511874

Install grommet (41) and switch (38) in the switch box. Connect the wiring. Install film (40) on the front cover of the switch box.
Note: Grommet (41) is installed on the side of the switch box.

Show/hide table




Illustration 10	g01512235

Install cover (57) to the back side of the switch box with two screws (54) .

Remove the floorplate in order to access the manhole.

Show/hide table




Illustration 11	g01513183
View from the manhole looking towards the inside of the left fender.

Remove the plugs from block (A). Install one adapter assembly (31) and one elbow (33) to block (A). Install one elbow (33) to block (A). Install one hose assembly (28) and one hose assembly (29) to the elbow assemblies (33) .

Remove the cover plates from the fender. Route hose assembly (28) and hose assembly (29) through the left-hand rear fender.

Show/hide table




Illustration 12	g01513336
View from the manhole looking towards the inside of the left fender.

Install one grommet (30) on hose assembly (28) and hose assembly (29). Install two plates (27) with four bolts (20) and four washers (34) .

Show/hide table




Illustration 13	g01513373
View looking towards the outside of the left fender.

Install one grommet (30) on hose assembly (28) and hose assembly (29). Install two plates (27) with four bolts (20) and four washers (34) on the outside of the fender.

Show/hide table




Illustration 14	g01621648

Install abrasion sleeve (35) on the exposed portion of hose assembly (28) and hose assembly (29). Secure abrasion sleeve (35) to hose assembly (28) and hose assembly (29) with one tie strap (26) on each abrasion sleeve.

Show/hide table




Illustration 15	g02022098

Install hinge assembly (1) to the left-hand fender with three bolts (19) and three washers (21). Install the bolts and the washers at the top left-hand corner that is circled in Illustration 15 and the rear two mounting locations for the bolts. Make sure that the mating surfaces are smooth and clean. Note any gap that is between the fender and the bottom of hinge assembly (1). If a gap is present but the gap is less than 2 mm (0.0787 inch), use two shim packs (59) behind the hinge casting. If the gap is between 2 mm (0.0787 inch) and 2.5 mm (0.0984 inch), use two washers (60) behind the hinge casting. If the gap is between 2.5 mm (0.0984 inch) and 3 mm (0.118 inch) use two washers (61) behind the hinge casting. Permanently fasten the shims or the washers to the fender in order to ensure that the shims or the washers will stay in place during any future service for the ladder. After fastening the shims or the washers, install the bottom two bolts (19) and washers (21). Leave all five mounting bolts (19) loose.
Note: Remove plug (Q) in order to check the oil level for hinge assembly (1). The oil level for hinge assembly (1) should be filled to the level of the opening of the filler plug with 184-8054 Oil that is also used in the final drive.

Show/hide table




Illustration 16	g01513899

Connect hose assembly (28) and hose assembly (29) to the motor for hinge assembly (1) with two connectors (32) .

Show/hide table




Illustration 17	g01513935

Install bracket (2) on the left-hand fender with two bolts (18) and two washers (21). Leave two mounting bolts (18) loose.

Show/hide table




Illustration 18	g01920113

Install latch (8) to support bracket (7) with four bolts (23), eight washers (10), and four nuts (22). Leave four mounting bolts (23) loose.

Show/hide table




Illustration 19	g01920407

Install proximity switch (39) to plate (M) with two bolts (42) and two washers (47). Route the harness from proximity switch (39) through grommet (37) .

Show/hide table




Illustration 20	g01920273

Loosen eight bolts (B) that are connecting the upper latch bracket (C) and the lower latch bracket (D) to latch (8) .

Show/hide table




Illustration 21	g01536682

Route the wiring harness through the light area on the left-hand fender along latch (8). Install grommet (49). Secure the wiring harness with cable straps (46) .

Show/hide table




Illustration 22	g01930673

Remove the jumper plug on the wiring harness assembly and attach proximity switch (39) to the 3-pin connector from the wiring harness assembly for the tractor. Then attach the five connectors for the control module.
Note: A level III warning in the cab will occur if the following actions happen:
- "Left Ladder Installation Status" is toggled to ON in ET.
- Proximity switch (39) is properly connected.
- The ladder is lowered and the parking brake is disengaged.
1. Secure the five electrical connections with cable straps (46). Refer to Illustration 23.

Show/hide table




Illustration 24	g01515104

Install ladder assembly (3) to hinge assembly (1) with four bolts (19) and four washers (21). Leave four mounting bolts (19) loose.

Show/hide table




Illustration 25	g01515337

Start the tractor and move ladder (3) to the Up position. Refer to Operation and Maintenance Manual, SEBU8135. Continue pushing switch (38) in the Up position until latch pins (E) are fully engaged into ladder (3) .
Note: Adjust the position of the latch and the ladder so that the latch pins (E) are aligned properly with the corresponding holes in the ladder. Refer to Illustration 25.

Show/hide table




Illustration 26	g01515815

Adjust upper latch brackets (C) and lower latch brackets (D) in order to hold the ladder tightly in the Up position when latch pins (E) are engaged. Tighten eight bolts (B) .

Show/hide table




Illustration 27	g01515823

Tighten five mounting bolts (19) for hinge (1). Refer to Step 18. Tighten four mounting bolts (23) for latch (8). Refer to Step 21. Tighten four mounting bolts (19) for ladder (3). Refer to Step 26. Install plate (9) on ladder (3) with four bolts (17) and four washers (13). Refer to Illustration 27.

Show/hide table




Illustration 28	g01515897

Start the tractor. Move the ladder to the Down position. Make sure that bracket (2) is aligned with the notch in plate (6) .

Show/hide table




Illustration 29	g01515942

Tighten two mounting bolts (18) for bracket (2). Refer to Step 20.

Perform a functional test in order to ensure that all adjustments are correct and that the warning system functions properly.

Show/hide table




Illustration 30	g02340217

Install bracket assembly (68) to the top back side of the left lift cylinder with three bolts (17) and three washers (66). Install mirror (65) to bracket assembly (68) with two bolts (17) and two washers (67) .

Register the Retrofit

Note: Because retrofits to a machine will change the configuration of the machine, updating the machines configuration in SIMSi and AIMS is important. If the retrofit information is not provided, Caterpillar will not be able to provide important product updates.

When performing a retrofit installation, record the vital information in Table 3.

Note: If the procedure is performed by the customer, ask the customer to record the proper information.

Show/hide table

Table 3
Repair Date
Product Serial Number
Service Hours or Service Meter Units
Removed Component Part Number ⁽¹⁾
Removed Component Serial Number ⁽¹⁾
Installed Component Part Number ⁽²⁾
Installed Component Serial Number ⁽³⁾

Show/hide table

^( 1 )	If the product is an engine, and the update is a kit for upgrading the engine, disregard the "Removed Component" information.
^( 2 )	If the product is an engine, and the update is a kit for upgrading the engine, enter the kit part number for the "Installed Component Part Number".
^( 3 )	If the product is an engine, and the update is a kit for upgrading the engine, disregard the "Installed Component Serial Number" information.

Update the product configuration by entering the information from Table 3 into SIMSi and AIMS.
Note: For retrofits that have a Caterpillar serial number, the AIMS application is "JIZ111-08". For retrofits that do not have a Caterpillar serial number, the AIMS application is "JIZ111-07".

For additional information on updating the product configuration, refer to the following websites:
https://dealer.cat.com/upgrades&retrofits

https://dealer.cat.com/emissionssolutions
1. From "https://dealer.cat.com/upgrades&retrofits", click "Link to Retrofit Registration Instructions" under the "Related Links".
1. From "https://dealer.cat.com/emissionssolutions", click "Retrofit Registration Instructions: Use for machine configuration changes when emissions solutions products are added" under the "Training and Service Materials".