Bench Test Procedure for a 910E, 910F, and 918F Wheel Loader TransmissionIT12E, IT12F, IT14B, IT14F Integrated Toolcarrier Transmission{3030, 3073} Caterpillar

Integrated Toolcarrier:

IT12B (S/N: 1KF1-UP)

IT12F (S/N: 1KF1-UP; 6RS1-UP)

IT14B (S/N: 3NJ1-UP)

IT14F (S/N: 4EL1-UP)

Wheel Loader:

910E (S/N: 1SF1-UP)

910F (S/N: 1SF1-UP; 1YK1-UP; 2SS1-UP)

918F (S/N: 3TJ1-UP; 2CK1-UP; 5DL1-UP)

Introduction

Table 1

Revision	Summary of Changes in REHS3123
01	Added new Introduction and Canceled Part Numbers section

© 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-specific transmission arrangements. Refer to Table 2 for the correct arrangements. Bench testing the transmission ensures correct assembly and operation of the component. Rotating a transmission provides the most conclusive evaluation. This allows the dealer to ensure that the transmission 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

Table 2

Machine Model	Transmission Arrangement
910E	9W-7724, 6I-8276, 8E-9102, 102-7500, 6I-8278, 102-7505, 102-7498, 107-5897, 107-5945, 6I-8275, 6I-8424, 102-7503, 102-7497
910F	9W-7724, 6I-8276, 8E-9102, 102-7500, 6I-8278, 102-7505, 102-7498, 107-5897, 107-5945, 6I-8275, 6I-8424, 102-7503, 102-7497, 6I-8277, 6I-8279, 102-7499
918F	9W-2506, 102-7501, 109-0035
IT12B	9W-7724, 8E-9102, 6I-8278, 102-7498, 6I-8275, 6I-8276, 102-7497, 102-7500, 102-7503, 102-7505, 107-5897, 107-5945
IT12F	9W-7724, 8E-9102, 6I-8278, 102-7498, 6I-8275, 6I-8276, 102-7497, 102-7500, 102-7503, 102-7505, 107-5897, 107-5945, 102-7499
IT14B	9U-8685, 6Y-2112
IT14F	102-7500, 107-5925, 102-7498, 102-7503

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 used in order to compare values on portions of this transmission test. 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.

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.

____________________

Table 3

Required Tools
Tool	Part Number	Part Description	Qty
A	4C-9998	Bracket As	2
	8T-0293	Bolts (M12 x 1.75-6H)	4
	5P-8245	Washer	8
	1U-6232	Crossmember As	1
	1D-4615	Bolts (3/4-10 x 5.5")	4
	2J-3506	Full Nut	4
	2S-0115	Hard Washer	8
B	1U-5798	Adapter As	1
C k	4C-6174	Adapter (Hub)	1
	0S-1588	Bolt (3/8-16 x 1 1/4)	6
	1U-6698	Adapter As	1
	0S-1588	Bolts (3/8-16 x 1 1/4)	6
	8M-7145	Washer (3/8)	6
D	1U-5999	Spindle Group	1
	8B-7997	Bolts (1/2-13 x 2)	4
E	1U-6721	Drive Adapter	1
F	1U-9131	Drive Adapter	1
G	1U-9359	Drive Adapter	1
H	1U-9722	Ratcheting Turnbuckle	2
J	1U-6234	Adapter (Insert)	1
	2N-5243	O-Ring	1
K	1U-6233	Oil Supply Adapter	1
	6V-5217	Bolts (M8 x 1.25-20mm)	3
	5P-3863	O-Ring	1
	3B-7286	Nipple	1
	7B-7138	Fitting	1
	3N-8699	Reducer	1
	1U-9879	Camlock Fitting	1
L	1U-8300	Fitting	1
	1U-9736	Fitting	1
	2S-4078	O-Ring	1
	7M-8485	O-Ring	1
	8C-9024	Nipple (Quick Disconnect)	1
M	5P-0492	Fitting	2
	7M-8485	O-Ring	2
	6B-3156	Nipple	1
	1U-8300	Fitting	1
	6V-3965	Nipple (Quick Disconnect)	1
	3J-1907	O-Ring	1
	8C-9024	Nipple (Quick Disconnect)	1
N	1U-8301	Fitting	1
	1U-8296	Fitting	1
	4J-5267	O-Ring	1
	7M-8485	O-Ring	1
	1P-4576	Split Flange	2
	O5-8615	Nipple	1
	8C-9025	Coupler (Quick Disconnect)	1
	6V-1820	Bolts (M10 x 1.5-30mm)	4
	6V-3965	Nipple (Quick Disconnect)	1
	3J-1907	O-Ring	1
P	1U-8301	Fitting	1
	1U-8297	Fitting	1
	4J-0520	O-Ring	1
	7M-8485	O-Ring	1
	1P-4577	Split Flange	2
	8C-9024	Nipple (Quick Disconnect)	1
	6V-1820	Bolts (M10 x 1.5-30mm)	4
R	4P-3117	Ball Valve	1
	8C-9024	Nipple (Quick Disconnect)	1
	8C-9025	Coupler (Quick Disconnect)	1
	3B-7749	Nipple (1.0 Shoulder)	1
S	9T-7038	Filter Group	1
	8C-9024	Nipple (Quick Disconnect)	2
T	8T-0855	Gauge	1
	6V-4144	Coupler (Quick Disconnect)	1
U	8T-0855	Gauge	1
	6V-4144	Coupler (Quick Disconnect)	1
V	8T-0855	Gauge	1
	6V-4144	Coupler (Quick Disconnect)	1
W	8T-0853	Gauge	1
	6V-4144	Coupler (Quick Disconnect)	1
X	8T-0854	Gauge	1
	6V-4144	Coupler (Quick Disconnect)	1
	6V-3965	Nipple (Quick Disconnect)	1
	3J-1907	O-Ring	1
Y	277-2362	Transmission Analyzer III Gp	1
	9U-7498	Adapter Cable As	1
	9U-7497	Adapter Cable As	1
	1U-9480	Cable Adapter	2
	241-4879	Cable Adapter	2

Installation Procedure

Show/hide table



Illustration 1	g01248926

1. Install Tooling (A) on the test bench.

Show/hide table



Illustration 2	g01272376
Typical example

2. Use a hoist to install the transmission on the test bench. The weight of the transmission is 432.19 kg (953 lb).

Show/hide table



Illustration 3	g01248930
Typical example

3. Install Tooling (B) on the torque converter.

Show/hide table



Illustration 4	g01248933
Typical example

4. Install Tooling (C) to the transfer case.

Show/hide table



Illustration 5	g01248938

5. Install Tooling (D).

Show/hide table



Illustration 6	g01248939

6. Tighten the collet on Tooling (D) in order to connect Tooling (D) to Tooling (B) .

   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 7	g01248945
Typical example

7. Install Tooling (E) .

Show/hide table



Illustration 8	g01248946
Typical example

8. Install Tooling (F) .

Show/hide table



Illustration 9	g01248949
Typical example

9. Align the transmission with the input drive shaft.

10. Connect the input drive shaft to Tooling (F) .

Show/hide table



Illustration 10	g01248950
Typical example

11. Install the drive shaft guard.

Show/hide table



Illustration 11	g01248953
Typical example

12. Install Tooling (H) on the input end of the transmission.

Show/hide table



Illustration 12	g01248958
Typical example

13. Install Tooling (H) to the output end of the transmission.

Show/hide table



Illustration 13	g01248959
Typical example

14. Remove cover (1) .

Show/hide table



Illustration 14	g01248961
Typical example

15. Remove magnetic filter (2) .

Show/hide table



Illustration 15	g01248966

16. Install Tooling (J) .

Show/hide table



Illustration 16	g01248968

17. Install Tooling (K) .

Show/hide table



Illustration 17	g01248970

18. Install Tooling (L) .

Show/hide table



Illustration 18	g01248974

19. Install Tooling (M) .

Show/hide table



Illustration 19	g01248978

20. Install Tooling (N) .

Show/hide table



Illustration 20	g01248980

21. Install Tooling (P) .

Show/hide table



Illustration 21	g01248986

22. Install Tooling (R) to Tooling (P) .

Show/hide table



Illustration 22	g01248987

23. Install Tooling (S) to Tooling (N) .

Show/hide table



Illustration 23	g01256302
Bulk Oil Supply (3)

24. Connect hose assembly (3) to Tooling (K) from the test bench oil supply.

Show/hide table



Illustration 24	g01256303
Pump Outlet (4)

25. Connect hose assembly (4) from Tooling (R) to the inlet of the No. 1 flow meter.

Show/hide table



Illustration 25	g01256305
Inlet For Main Relief Valve And Clutch Supply Rail (5)

26. Connect hose assembly (5) from the outlet of the No. 1 flow meter to Tooling (L) .

Show/hide table



Illustration 26	g01256310
Torque Converter Outlet (6)

27. Connect hose assembly (6) from Tooling (R) to the inlet of the No. 2 flow meter.

Show/hide table



Illustration 27	g01256312
Lubrication Inlet (7)

28. Connect hose assembly (7) from the outlet of the No. 2 flow meter to Tooling (M) .

Show/hide table



Illustration 28	g01248994
Speed Clutch Pressure "P1" (T)

29. Install Tooling (T) .

Show/hide table



Illustration 29	g01248996
Direction Clutch Pressure "P2" (U)

30. Install Tooling (U) .

Show/hide table



Illustration 30	g01256318
Torque Converter Inlet Pressure "P3" (V)

31. Install Tooling (V) .

Show/hide table



Illustration 31	g01256319
Lubrication Pressure (W)

32. Install Tooling (W) .

Show/hide table



Illustration 32	g01256321
Torque Converter Outlet Pressure (X)

33. Install Tooling (X) .

Show/hide table



Illustration 33	g01256322

34. Connect Tooling (Y) to the transmission.

Show/hide table



Illustration 34	g01457869
Tooling (Y)

35. Connect Tooling (Y) to a power source. Refer to Tool Operating Manual, NEHS0644 for the correct operating instructions.

Test Procedure

Solenoid Test

1. Make sure that the harness is properly connected.

2. Use Tooling (Y) to perform the solenoid test.

3. Record the values in Table 6.

Start Checks

Note: Refer to Testing and Adjusting, SENR5904, "IT18F Integrated Toolcarrier Power Train" for the correct adjusting procedures.

1. If you are using SAE 10W oil, warm the oil to 50 °C (125 °F). If you are using MobilDTE11 oil, warm the oil to 34 °C (95 °F). Maintain this temperature for the duration of the test.

2. Adjust the input flow to 28.1 ± 4.0 L/min (7.4 ± 1.0 US gpm).

Show/hide table



Illustration 35	g02720621

3. With the transmission in the NEUTRAL position, rotate the input shaft in a counterclockwise direction. Adjust the input rotation to 850 ± 25 rpm.

4. Shift the transmission through all speed ranges in order to eliminate air from the transmission controls.

5. Shift the transmission until all clutch fills are consistent.

6. The lubrication pressure must be between 14 kPa (2.0 psi) and 28 kPa (4.0 psi).

7. Record the value in Table 7.

8. Stop the input rotation.

9. Stop the input flow.

Check of the Torque Converter Inlet relief Valve

1. Adjust the input flow to 28.1 ± 4.0 L/min (7.4 ± 1.0 US gpm). Maintain this flow during this check.

2. With the transmission in the NEUTRAL position, rotate the input shaft in a counterclockwise direction. Adjust the input rotation to 850 ± 25 rpm.

3. Shift the transmission to FORWARD 1.

4. Momentarily block the lube flow.

5. The torque converter inlet pressure must be 1000 ± 140 kPa (264.2 ± 36.9 US gpm).

6. Open the lube flow.

7. Record the value in Table 9.

Lube Circuit Check

1. Adjust the input flow until the lube flow is 73.0 L/min (19.3 US gpm). Maintain this flow during this check.

2. Adjust the input rotation to 850 ± 25 rpm.

3. Shift the transmission to the FORWARD 2 position.

4. The lubrication pressure must be within ±10 kPa (±1.5 psi) of the test bench average for this arrangement. Reference is 69 ± 10 kPa (10 ± 1.5 psi).

5. Record the value in Table 10.

Clutch Leakage Check

1. Adjust the input flow to 87.6 ± 4.5 L/min (23.1 ± 1.2 US gpm). Maintain this flow during this check.

2. Adjust the input rotation to 850 ± 25 rpm.

3. Shift the transmission to the FORWARD 1 position.

4. Adjust the input rotation to 2400 ± 25 rpm.

5. Record the input flow in Table 11.

6. Record the lube flow in Table 11.

7. The leakage is obtained by subtracting the lube flow from the input flow.

8. Record the calculation in Table 11.

9. Adjust the input rotation to 850 ± 25 rpm.

10. Shift the transmission through positions FORWARD 2, FORWARD 3, REVERSE 3, REVERSE 2, REVERSE 1, and NEUTRAL. Repeat Steps 4 through 9 for each gear range.

11. The leakage difference between SECOND and THIRD gears or between FORWARD and REVERSE should not exceed 17 L/min (4.5 US gpm).

12. The difference in lubrication flow between the FIRST, SECOND, and THIRD gear ranges must not exceed 3.0 L/min (0.80 US gpm) of the test bench average for this arrangement. Reference is 6.4 ± 3.0 L/min (1.70 ± 0.80 US gpm).

13. Record the calculations in Table 11.

14. Stop the input rotation.

15. Stop the input flow.

Table 4

Specifications
Description	High Idle	Low Idle
Input Speed	2400 ± 25 rpm	850 ± 25 rpm
Input Flow	87.6 ± 4.5 L/min (23.14 ± 1.19 US gpm)	28.1 ± 4 L/min (7.42 ± 1.05 US gpm)
Minimum Lube Flow	73 L/min (19.2 US gpm)	-
Pressures
Torque Converter Outlet Pressure	-	240 ± 35 kPa (35 ± 5 psi)
"P1" Pressure	P2 + 345 ± 70 kPa P2 + 50 ± 10 psi	P2 + 310 ± 70 kPa P2 + 45 ± 10 psi
"P2 "Pressure	1896 ± 170 kPa (275 ± 24.6 psi)	1896 ± 170 kPa (275 ± 24.6 psi)
"P3" Pressure	-	1000 ± 140 kPa (145 ± 20 psi)
Lubrication Pressure	157 ± 30 kPa (22.8 ± 4.3 psi)	-

Transmission Bench Test Data Sheet

Table 5

CATERPILLAR	Transmission Bench Test Data Sheet	Test Date
		Model
Work Order		Serial No.

Solenoid Test

Table 6

Solenoid Test	Solenoid 1	Solenoid 2	Solenoid 3	Solenoid 4	Solenoid 5
	_______ ohms	_____ ohms	_______ ohms	_______ ohms	_______ ohms

Start Checks

Table 7

Lubrication Pressure	Input Speed (850 ± 25 rpm)			kPa psi
	Input Flow 1000 ± 140 kPa (145.0 ± 20.3 psi)

Initial Pressure Check

Table 8

Initial Pressure	Input Speed (850 ± 25 rpm)			kPa psi
	Input Flow 28.1 ± 4.0 L/min (7.4 ± 1.0 US gpm)

Check of the Torque Converter Inlet Ratio Valve

Table 9

Pressure for the Torque Converter Inlet Ratio Valve	Input Speed (850 ± 25 rpm)			kPa psi
	Input Flow 25.0 ± 4.0 L/min (6.6 ± 1.0 US gpm)

Lube Circuit Check

Table 10

Lube Circuit Check		Gear Range FORWARD 2
		Input Speed (850 ± 25 rpm)
		Lube Flow 138 ± 34 L/min (36.5 ± 9.0 US gpm)
Average Lubrication Pressure Of Arrangement	kPa psi	Lubrication Pressure	kPa psi

Clutch Leakage Check

Table 11

Clutch Leakage Check		Input Speed (2400 ± 25 rpm)
		Input Flow 87.6 ± 4.5 L/min (23.1 ± 1.2 US gpm)
Gear Range	1F	2F	3F	3R	2R	1R	N
Input Flow	______	______	______	______	______	______	______
Lube Flow	______	______	______	______	______	______	______
Leakage	______	______	______	______	______	______	______

Contamination Control

Table 12

ISO Particle Count

Sample the test bench oil supply. ISO 4406 is 16/13.

________/________Particle Count

Table 13

______________________________________ Technician

______________________________________ Supervisor