Bench Test Procedure For A 589 Pipelayer, D8L, D9L, D9N, And D10N Track-Type Tractor Torque Converter{3101} Caterpillar

Pipelayer:

589 (S/N: 31Z1-UP)

Track-Type Tractor:

D10N (S/N: 2YD1-UP; 3SK1-UP)

D8L (S/N: 7YB1-UP; 7JC1-UP; 53Y1-UP)

D9L (S/N: 14Y1-UP)

D9N (S/N: 1JD1-UP; 5FJ1-UP; 6XJ1-UP)

Introduction

© 2012 Caterpillar All Rights Reserved. This guideline is for the use of Cat dealers only. Unauthorized use of this document or the proprietary processes therein without permission may be violation of intellectual property law.

This special instruction contains the necessary information that is required to bench test a specific torque converter arrangement. Refer to Table 2 for the correct arrangements. Bench testing the torque converter ensures correct assembly and operation of the component. Rotating a torque converter provides the most conclusive evaluation. This allows the dealer to ensure that the torque converter will operate properly in the machine. The specifications in this guideline are specific to bench testing the component. Every effort has been made in order to provide the most current information that is known to Caterpillar. Continuing improvement and advancement of product design might have caused changes to your product which are not included in this publication. This guideline must be used with the latest technical information that is available from Caterpillar.

For questions or additional information concerning this guideline, submit a form for feedback in the Service Information System. In order to address an urgent need, use the following resources to communicate your request to Caterpillar Repair Process Engineering:

• Cat Dealer Techinical Communicator

• Dealer Solution Network

• Cat Technical Representative

• Knowledge Network

Canceled Part Numbers and Replaced Part Numbers

This document may include canceled part numbers and replaced part numbers. Use NPR on SIS for information about canceled part numbers and replaced part numbers. NPR will provide the current part numbers for replaced parts.

Collecting The Test Data

Since conditions vary for each test bench, use the data that is collected from your test bench. The collected data is used to compare test results. The data should be collected and maintained by the operator.

Data from each transmission arrangement is collected and stored. Averages from each transmission arrangement are often used in order to compare values on portions of transmission tests. Always compare data that is collected from the same transmission arrangement that is being tested. Averages for the last 20 transmission arrangements should be maintained.

Show/hide table

Personal injury or death can result from escaping fluid under pressure. Escaping fluid under pressure, even a very small pin-hole size leak, can penetrate body tissue and cause serious injury and possible death. If fluid is injected into your skin, it must be treated immediately by a doctor familiar with this type of injury. Always use a board or cardboard when checking for a leak.

Show/hide table

Hot oil and components can cause personal injury. Do not allow hot oil or components to contact skin.

Show/hide table

Personal injury or death can result from not following the proper procedures. To avoid the possibility of injury or death, follow the established procedure.

Tools Needed

Note: Pressures will be sensitive to tooling setup. The diameter of the hose, the diameter of a fitting, and additional filtering can affect pressure. The required tools that are listed in Table 3 were used in order to develop this test procedure.

Installation Procedure

Show/hide table



Illustration 1	g01279053

1. Install Tooling (A) .

Show/hide table



Illustration 2	g01279056

2. Install Tooling (B) onto Tooling (A) .

Show/hide table



Illustration 3	g01279274

3. Tooling (C) .

Show/hide table



Illustration 4	g01278677

4. Install Tooling (D) to Tooling (C) .

Show/hide table



Illustration 5	g01278682

5. Install Tooling (E) to Tooling (C) .

Show/hide table



Illustration 6	g01278685

6. Install Tooling (F) in order to retain Tooling (E) .

Show/hide table



Illustration 7	g01278707

7. Install Tooling (C) to the torque converter.

Show/hide table



Illustration 8	g01278704

8. Install Tooling (G) .

Show/hide table



Illustration 9	g01278688

9. Install Tooling (H) .

Show/hide table



Illustration 10	g01278714

10. Use a hoist to install the torque converter on the test bench. The weight of the torque converter is 362.9 kg (800 lb).

Show/hide table



Illustration 11	g01278722

11. Use Tooling (J) in order to secure the torque converter to the test bench.

Show/hide table



Illustration 12	g01278739

12. Tighten the collet on Tooling (G) in order to connect Tooling (G) to Tooling (C) .

    Note: Refer to Special Instruction, SEHS8763, "Assembly and Operation of 1U-5999 Spindle Group Used for Testing Transmissions on Hydraulic Test Bench" for additional information.

Show/hide table



Illustration 13	g01278752

13. Install Tooling (K) to Tooling (G) .

Show/hide table



Illustration 14	g01278758

14. Install Tooling (L) to Tooling (K) .

    Note: Tooling (L) will adapt to the small drive shaft. If you are using the large drive shaft, install Tooling (M) on Tooling (L) .

Show/hide table



Illustration 15	g01278770

15. Align the torque converter with the input drive shaft.

16. Connect the input drive shaft to Tooling (L) .

Show/hide table



Illustration 16	g01278772

17. Install the drive shaft guard.

Show/hide table



Illustration 17	g01278744

18. Remove cover plate (1) .

Show/hide table



Illustration 18	g01278747

19. Remove filter (2) .

Show/hide table



Illustration 19	g01278749

20. Install Tooling (N) .

Show/hide table



Illustration 20	g01278779

21. Install Tooling (P) .

Show/hide table



Illustration 21	g01278785

22. Install Tooling (Q) .

Show/hide table



Illustration 22	g01278792
(3) Supply Oil

23. Connect hose assembly (3) from the outlet of the pressurized flow meter to Tooling (N) .

Show/hide table



Illustration 23	g01278795
(4) Torque Converter Outlet

24. Connect hose assembly (4) from the inlet of the No. 2 flow meter to Tooling (P) .

Show/hide table



Illustration 24	g01278817

25. Connect hose assembly (5) from the outlet of the No. 2 flow meter to the oil drain.

Show/hide table



Illustration 25	g01278801
(6) Spindle Lubrication Oil Supply

26. Connect lube line (6) from the test bench to Tooling (G). Maintain an oil pressure of 275.8 kPa (40 psi).

Show/hide table



Illustration 26	g01278806
(7) Torque Converter Inlet Pressure

27. Connect pressure gauge (7) to Tooling (N) .

Show/hide table



Illustration 27	g01278810
(8) Torque Converter Outlet Relief Pressure

28. Connect pressure gauge (8) to Tooling (Q) .

Test Procedure

Warm-up Procedure

1. If you are using SAE 10W oil, warm the oil to 50 °C (125 °F). If you are using Mobil DTE11 oil, warm the oil to 34 °C (95 °F). Maintain this temperature for the duration of the test.

2. Adjust the output flow at the No. 2 flow meter to 132.5 ± 9.5 L/min (35 ± 2.5 US gpm).

Show/hide table



Illustration 28	g02720621

3. Rotate the input shaft in a counterclockwise direction. Adjust the input rotation to 1400 ± 10 rpm.

4. Maintain input speed, oil flow, and pressure for 5 minutes in order to purge the air from the system.

Torque Converter Pressure And Leakage

1. Adjust the output flow at the No. 2 flow meter to 132.5 ± 9.5 L/min (35 ± 2.5 US gpm).

2. Adjust the input rotation to 1400 ± 10 rpm.

3. Record the torque converter inlet flow at the pressurized flow meter in Table 6.

4. Record the torque converter inlet pressure in Table 6.

5. Record the torque converter outlet relief pressure in Table 6.

6. To obtain the leakage, subtract the output flow from the input flow.

7. Record the calculation in Table 6.

Contamination Control

1. Drain all oil from the torque converter.

2. Take an oil sample of the test bench oil supply. Oil contamination must be below ISO 16/13.

3. Record the results in Table 7.

4. Remove the torque converter from the test bench if the test bench oil supply is within specifications.

Specifications

Torque Converter Bench Test Data Sheet

Torque Converter Leakage

Contamination Control