- Wheel Tractor-Scraper:
- 621E (S/N: 6AB1-UP; 6BB1-UP; 2PD1-UP; 2TF1-UP)
- 621F (S/N: 4SK1-UP; 5JK1-UP; 8PL1-UP; 9NL1-UP)
- 621G (S/N: DBB1-UP; KLK1-UP; CEN1-UP; ALP1-UP; KJW1-UP)
- 621S (S/N: 8KD1-UP)
- 623E (S/N: 6YF1-UP; 5SG1-UP)
- 623F (S/N: 5SG1-UP; 6BK1-UP; 3XW1-UP; 5EW1-UP)
- 623G (S/N: DBC1-UP; CES1-UP; ARW1-UP)
- 627E (S/N: 6EB1-UP; 6FB1-UP; 6GB1-UP; 6HB1-UP; 7CG1-UP; 3WJ1-UP)
- 627F (S/N: 4YK1-UP; 1DL1-UP)
- 627G (S/N: DBD1-UP; AXF1-UP; CEX1-UP)
- 621F (S/N: 4SK1-UP; 5JK1-UP; 8PL1-UP; 9NL1-UP)
Introduction
| Revision | Summary of Changes in REHS3468 | |
| 03 | Updated Introduction. Added "Think Safety" graphic. Updated Table 15. |
|
| 02 | Added new introduction, Canceled Part Numbers section, transmission arrangement, and updated effectivity. | |
© 2014 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. Information contained in this document is considered Caterpillar: Confidential Yellow.
This special instruction contains the necessary information that is required to bench test a specific transmission arrangement. 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. Testing 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 issue, use the following resources in order to communicate your request to Caterpillar Repair Process Engineering:
- Caterpillar Dealer Technical Communicator
- Dealer Solution Network
- Caterpillar Technical Representative
- Knowledge Network
| Machine Model | Transmission Arrangement |
| 621E | 9W-1285 |
| 621F | 143-4795 |
| 621G | 159-9611, 238-0254, 346-6765 |
| 621S | 9W-1287 |
| 623E | 9W-1285 |
| 623F | 143-4795 |
| 623G | 159-9611, 238-0254 |
| 627E | 9W-1285 |
| 627F | 143-4795 |
| 627G | 159-9611, 238-0254 |
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.
 | |
| Illustration 1 | g02139237 |
 |
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. |
 |
|
Hot oil and components can cause personal injury. Do not allow hot oil or components to contact skin. |
|
|
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.
| Required Tools | |||
|---|---|---|---|
| Tool | Part Number | Part Description | Qty |
| A | 1U-9584 | Rail As | 2 |
| 1U-9586 | Swivel Head Support Gp | 1 | |
| 1U-9585 | Block Gp (Transmission Mounting) | 1 | |
| B | 138-7574 | Link Bracket | 2 |
| 0L-1178 | Bolt (3/4-10X2.0 inch) | 2 | |
| 5P-8248 | Hard Washer | 2 | |
| C | 1U-6719 | Shaft As (Drive Adapter) | 1 |
| D | 136-3647 | Adapter Plate | 1 |
| 0S-1588 | Bolt (3/8-16X1.25 inch) | 4 | |
| 3B-4506 | Lockwasher | 4 | |
| E | 1U-9131 | Drive Adapter (Key) (1) | 1 |
| F | 1U-9359 | Drive Adapter (2) | 1 |
| G | 1U-9722 | Load Binder As (Ratchet Type) | 3 |
| H | 4C-4696 | Adapter (Splined) | 1 |
| J | 4C-4695 | Adapter Ring | 1 |
| K | 4C-4700 | Adapter As (Spindle) | 1 |
| 5P-5421 | Bolt (1/2-13X12.0 inch) | 3 | |
| L | 1U-5999 | Spindle Gp | 1 |
| 1A-1460 | Bolt (1/2-13X2.0 inch) | 4 | |
| M | FT-1268 | Adapter Plate | 1 |
| 7B-6868 | O-Ring Seal | 1 | |
| 5L-3785 | Pipe Nipple | 1 | |
| 5B-7660 | Pipe Elbow | 1 | |
| 3D-2189 | Pipe Nipple | 1 | |
| 3B-6499 | Reducing Bushing | 1 | |
| 1U-9879 | Fitting As | 1 | |
| 0S-1569 | Bolt (5/8-11X4 inch) | 2 | |
| 4B-5275 | Washer | 4 | |
| 1D-4720 | Full Nut | 2 | |
| N | FT-1268 | Adapter Plate | 1 |
| 3B-7280 | Pipe Nipple | 1 | |
| 1L-0254 | Pipe Elbow | 1 | |
| 8C-9024 | Fitting As | 1 | |
| P | 3B-6552 | Elbow | 1 |
| 3B-7282 | Pipe Nipple | 1 | |
| 6V-4142 | Fitting (Test) | 1 | |
| R | 4C-4897 | Cover (Transmission Test) | 1 |
| S | 1U-8304 | Fitting | 1 |
| 9U-7445 | Adapter | 1 | |
| 1P-4578 | Half Flange | 2 | |
| 8C-9024 | Fitting As (Plain) | 1 | |
| 6V-3965 | Fitting As (Quick Disconnect) | 1 | |
| 4J-0522 | O-Ring Seal | 1 | |
| 7M-8485 | O-Ring Seal | 1 | |
| 3J-1907 | O-Ring Seal | 1 | |
| 1D-4703 | Bolt (7/16-14X2.5 inch) | 4 | |
| 8T-5360 | Hard Washer | 4 | |
| T | 120-6843 | Ball Valve | 1 |
| 8C-9024 | Fitting As (Plain) | 1 | |
| 8C-9025 | Quick Coupler | 1 | |
| 3B-7749 | Fitting | 1 | |
| U | 1U-8301 | Fitting | 1 |
| 9U-7445 | Adapter | 1 | |
| 1P-4578 | Half Flange | 2 | |
| 8C-9024 | Fitting As (Plain) | 1 | |
| 6V-3965 | Fitting As (Quick Disconnect) | 1 | |
| 4J-0522 | O-Ring Seal | 1 | |
| 7M-8485 | O-Ring Seal | 1 | |
| 3J-1907 | O-Ring Seal | 1 | |
| 1D-4703 | Bolt (7/16-14X2.5 inch) | 4 | |
| 8T-5360 | Hard Washer | 4 | |
| V | 6V-3965 | Fitting As (Quick Disconnect) | 1 |
| W | 9U-7500 | Transmission Analyzer Tool Gp | 1 |
| 9U-7498 | Adapter Cable As (Transmission Analyzer) | 1 | |
| 1U-9482 | Adapter Cable As | 1 | |
| 232-1065 | Cable Adapter | 1 | |
| 1U-9480 | Cable Adapter | 1 | |
| X | 8T-0855 | Pressure Gauge (0 to 4,000 kPa (0 to 580 psi)) | 10 |
| 6V-3989 | Fitting (Test) | 10 | |
| 177-7861 | Hose As | 10 | |
| 6V-4143 | Coupler | 20 | |
| Y | 8T-0863 | Pressure Gauge (0 to 250 kPa (0 to 36 psi)) | 2 |
| 6V-3989 | Fitting (Test) | 2 | |
| 177-7861 | Hose As | 2 | |
| 6V-4143 | Coupler | 4 | |
| ( 1 ) | This drive adapter is used with the small drive shaft. |
| ( 2 ) | This drive adapter is used with the large drive shaft. |
Installation Procedure
- Install Tooling (A) on the rails of the test bench, as shown.
 | |
| Illustration 2 | g01437026 |
- Install Tooling (B) on the transmission case.
 | |
| Illustration 3 | g01437039 |
 | |
| Illustration 4 | g01437043 |
- Use a hoist to install the transmission on the test bench. The weight of the transmission is 1211 kg (2670 lb).
 | |
| Illustration 5 | g01437047 |
- Remove cover (1) .
 | |
| Illustration 6 | g01437055 |
- Install Tooling (C) .
 | |
| Illustration 7 | g01437060 |
- Install Tooling (D) to Tooling (C) .
 | |
| Illustration 8 | g01437062 |
- Install Tooling (E) on Tooling (D) .
Note: Tooling (E) will adapt to the small drive shaft. If you are using the large drive shaft, install Tooling (F) on Tooling (D) .
 | |
| Illustration 9 | g01437064 |
- Align the transmission with the input drive shaft.
 | |
| Illustration 10 | g01437065 |
- Connect the input drive shaft to Tooling (E) .
- Install the drive shaft guard.
 | |
| Illustration 11 | g01115956 |
- Install Tooling (G) to the input end of the transmission.
 | |
| Illustration 12 | g01437100 |
- Install Tooling (G) to the output end of the transmission.
 | |
| Illustration 13 | g01437107 |
- Remove bolts (2) .
 | |
| Illustration 14 | g01437114 |
- Install Tooling (H) .
 | |
| Illustration 15 | g01437121 |
- Install Tooling (J) .
 | |
| Illustration 16 | g01883015 |
- Install Tooling (K) .
 | |
| Illustration 17 | g01883016 |
- Install Tooling (L) on Tooling (K) .
 | |
| Illustration 18 | g01883018 |
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.
- Loosen bolt (3) .
 | |
| Illustration 19 | g01437140 |
- Use bolt (4) to adjust Tooling (L) inward.
 | |
| Illustration 20 | g01437143 |
- Tighten the collet on Tooling (L) in order to connect Tooling (K) to Tooling (H) .
 | |
| Illustration 21 | g01883022 |
- Tighten bolt (2) only after you adjust Tooling (L) .
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.
- Install Tooling (M) .
 | |
| Illustration 22 | g01883027 |
- Install Tooling (N) .
 | |
| Illustration 23 | g01883028 |
- Remove bracket (5) .
 | |
| Illustration 24 | g01437155 |
- Remove cover (6) .
 | |
| Illustration 25 | g01437174 |
- Remove cover (7) .
 | |
| Illustration 26 | g01437180 |
- Remove plug (8) .
 | |
| Illustration 27 | g01437202 |
- Install Tooling (P) .
 | |
| Illustration 28 | g01883031 |
- Install Tooling (R) .
 | |
| Illustration 29 | g01883035 |
- Install Tooling (S) .
 | |
| Illustration 30 | g01883036 |
- Connect Tooling (T) to Tooling (S) .
 | |
| Illustration 31 | g01883038 |
- Install Tooling (U) .
 | |
| Illustration 32 | g01883040 |
- Remove Plug (9) .
 | |
| Illustration 33 | g01437617 |
- Install Tooling (V) .
 | |
| Illustration 34 | g01883042 |
- Connect hose assembly (10) from the pump supply to Tooling (M) .
 | |
| Illustration 35 | g01437324 |
- Connect hose assembly (11) from Tooling (N) to the drain.
 | |
| Illustration 36 | g01437329 |
- Connect hose assembly (12) from the No. 2 flow meter inlet to Tooling (T) .
Note: The No. 2 flow meter will measure the torque converter inlet oil that is returning to the test bench.
 | |
| Illustration 37 | g01437333 |
- Connect hose assembly (13) from the outlet of the No. 2 flow meter to Tooling (U) .
 | |
| Illustration 38 | g01437334 |
- Connect lube line (14) from the test bench to Tooling (L). Maintain an oil pressure of 275 kPa (40 psi).
 | |
| Illustration 39 | g01437336 |
- Connect a pressure gauge to pressure taps (15), (16), (17), (18), (19), (20), and (21), as shown.
 | |
| Illustration 40 | g01437343 |
Note: If you are using individual pressure gauges to measure the pressures, refer to Table 3 for the correct pressure gauges.
- Connect pressure gauge (22) to Tooling (P) .
 | |
| Illustration 41 | g01437344 |
(22) Priority Pressure | |
- Connect pressure gauge (23) to Tooling (V) .
 | |
| Illustration 42 | g01437345 |
(23) Pump Pressure | |
- Connect pressure gauge (24) to Tooling (U) .
 | |
| Illustration 43 | g01437565 |
(24) Transmission Lube Pressure | |
- Connect pressure gauge (25) to Tooling (S) .
 | |
| Illustration 44 | g01437574 |
(25) Torque Converter Inlet Pressure | |
- Connect Tooling (W) to solenoid (26) and solenoid (27), as shown.
 | |
| Illustration 45 | g01883053 |
(26) Upshift Solenoid (27) Downshift Solenoid | |
- Connect Tooling (W) to the transmission.
 | |
| Illustration 46 | g01883056 |
- Connect Tooling (W) to a suitable location, as shown.
 | |
| Illustration 47 | g01883057 |
- Connect Tooling (W) to a power source. Refer to Tool Operating Manual, NEHS0644 for the correct operating instructions.
 | |
| Illustration 48 | g01437601 |
Tooling (W) | |
Test Procedure
Solenoid Test
- Make sure that the harness is properly connected.
- Use Tooling (W) to perform the solenoid test.
- Record the values in Table 8.
Preliminary Checks
- The preferred oil is SAE 10 oil viscosity grade. Warm SAE 10 oil viscosity grade to 50 °C (125 °F). Maintain this temperature for the duration of the test.
Note: Refer toTesting and Adjusting, SENR3301, "621E, 623E & 627E WHEEL TRACTORS POWER TRAIN " or Testing and Adjusting, SENR6813, "621F, 623F, and 627F Wheel Tractor Power Train ".
- With the transmission in the NEUTRAL position, rotate the input shaft in a CLOCKWISE direction. Adjust the input rotation to 600 ± 5 rpm.
 | |
| Illustration 49 | g02720114 |
- Shift the transmission through all speed ranges in order to eliminate air from the transmission controls.
- Shift the transmission until all clutch fills are consistent.
- The minimum transmission lubrication pressure should be 13.8 kPa (2.0 psi).
- Record the value in Table 9.
- Adjust the input rotation to 0 rpm.
- Use the following procedure to test the transmission.
Priority Reducing Valve
- Adjust the input rotation to 600 ± 5 rpm in the NEUTRAL position.
- Shift the transmission to the FORWARD 1 position.
- Check the pressure for the priority reducing valve. The correct pressure must be 1725 ± 70 kPa (250 ± 10 psi).
- Record the value in Table 10.
Neutralizer Valve
- Stop the input rotation in any range. Do not stop the input rotation in NEUTRAL.
Note: Eliminate all incoming flow before performing this test. It may be necessary for you to shut down the test bench.
- Adjust the input rotation to 600 ± 5 rpm.
- The neutralizer valve must prevent a pressure increase at any clutch station.
- Record the values in Table 11.
- Shift the transmission to the NEUTRAL position. The clutch pressure that is measured at pressure tap "F" must rise to a normal pressure.
- Record the value in Table 12.
Torque Converter Inlet Relief Valve
- Shift the transmission to the FORWARD 1 position.
- Adjust the input rotation until the outlet flow for the cooler outlet is 38.0 ± 0.2 L/min (10.00 ± 0.05 US gpm).
- Use Tooling (S) in order to block the flow at the torque converter outlet momentarily.
- The torque converter inlet pressure must be 930 ± 100 kPa (135 ± 15).
- Record the value in Table 13.
Lube Circuit Check
- Shift the transmission to the FORWARD 4 position.
- Adjust the input rotation until the output flow is 57 ± 0.4 L/min (15 ± .1 US gpm).
- The transmission lubrication pressure must be 79 ± 8 kPa (11.5 ± 1.2 psi).
- Record the value in Table 14.
- Stop the input rotation.
Primary Pressure Check
- Remove Tooling (R) .
- Remove the load piston plugs (28) from selector valve "A", "B", "C", "E", "F", and "G".
Note: DO NOT remove the load piston plug from selector valve "D".
 | |
| Illustration 50 | g01437610 |
- Install Tooling (R) .
- Adjust the input rotation to 600 ± 5 rpm.
- The minimum supply pressure is 2690 kPa (390 psi) in all speed ranges.
- Shift the transmission through each gear range.
- Record the primary clutch pressure for each gear range in Table 15.
- Verify that the primary clutch pressures match the values in Table 4.
| Primary Clutch Pressures | ||||||||
| Station | "A" | "B" | "C" | "E" | "F" | "G" | "H" | |
| Clutch | No. 1 (1) | No. 2 (1) | No. 7 (1) | No. 5 (1) | No. 4 (1) | No. 6 (1) | No. 3 (1) | |
| Speed Range | Engaged Clutches | Pressure | ||||||
| NEUTRAL | 4 | 345 kPa (50 psi) |
||||||
| REVERSE | 1 and 7 | 360 kPa (52 psi) |
380 kPa (55 psi) |
|||||
| FORWARD 1 | 1 and 6 | 360 kPa (52 psi) |
325 kPa (47 psi) |
|||||
| FORWARD 2 | 1 and 5 | 360 kPa (52 psi) |
380 kPa (55 psi) |
|||||
| FORWARD 3 | 3 and 6 | 325 kPa (47 psi) |
310 kPa (45 psi) |
|||||
| FORWARD 4 | 2 and 6 | 496.4 kPa (72 psi) |
325 kPa (47 psi) |
|||||
| FORWARD 5 | 3 and 5 | 380 kPa (55 psi) |
310 kPa (45 psi) |
|||||
| FORWARD 6 | 2 and 5 | 496.4 kPa (72 psi) |
380 kPa (55 psi) |
|||||
| FORWARD 7 | 3 and 4 | 345 kPa (50 psi) |
310 kPa (45 psi) |
|||||
| FORWARD 8 | 2 and 4 | 496.4 kPa (72 psi) |
345 kPa (50 psi) |
|||||
| ( 1 ) | The tolerance is + 50 − 35 kPa (+ 7 − 5 psi). |
Pressure Check (Low Idle)
- Remove Tooling (R) .
- Install load piston plugs (28).
- Install Tooling (P) .
- Adjust the input rotation to 600 ± 5 rpm in the NEUTRAL position.
- The minimum supply pressure is 2690 kPa (390 psi) in all speed ranges.
- Shift the transmission through ranges NEUTRAL, REVERSE, FORWARD 1, and FORWARD 2 positions.
- Record the clutch pressure for each gear range in Table 16.
- Verify that the clutch pressures match the values in Table 5.
Show/hide table
Table 5 Pressure Check (Low Idle) Station "A" "B" "C" "E" "F" "G" "H" Clutch No. 1 (1) No. 2 (1) No. 7 (1) No. 5 (1) No. 4 (1) No. 6 (1) No. 3 (1) Speed Range Engaged Clutches Pressure NEUTRAL 4
1965 kPa (285 psi)REVERSE 1 and 7
2760 kPa (400 psi)
2760 kPa (400 psi)FORWARD 1 1 and 6
2760 kPa (400 psi)
2740 kPa (397 psi)FORWARD 2 1 and 5
2760 kPa (400 psi)
2760 kPa (400 psi)Show/hide table( 1 ) The tolerance is + 240 − 100 kPa (+ 35 − 15 psi).
Pressure Check (High Idle)
- Adjust the input rotation to 600 ± 5 rpm with the transmission in the NEUTRAL position.
- The maximum supply pressure is 3310 kPa (480 psi) in all speed ranges.
- Adjust the input rotation to 2200 ± 10 rpm.
- Record the clutch pressure in Table 17.
- Adjust the input rotation to 600 ± 5 rpm.
- Shift the transmission through positions NEUTRAL, REVERSE, FORWARD 1, FORWARD 2, FORWARD 3, FORWARD 4, FORWARD 5, FORWARD 6, FORWARD 7, and FORWARD 8 positions. Repeat Steps 3 through 5 for each gear range.
- Adjust the input rotation to 600 ± 5 rpm.
- Verify that the clutch pressures match the values in Table 6.
| Pressure Check (High Idle) | ||||||||
| Station | "A" | "B" | "C" | "E" | "F" | "G" | "H" | |
| Clutch | No. 1 (1) | No. 2 (1) | No. 7 (1) | No. 5 (1) | No. 4 (1) | No. 6 (1) | No. 3 (1) | |
| Speed Range | Engaged Clutches | Pressure | ||||||
| NEUTRAL | 4 | 2070 kPa (300 psi) |
||||||
| REVERSE | 1 and 7 | 2930 kPa (425 psi) |
2965 kPa (430 psi) |
|||||
| FORWARD 1 | 1 and 6 | 2930 kPa (425 psi) |
3034 kPa (440 psi) |
|||||
| FORWARD 2 | 1 and 5 | 2930 kPa (425 psi) |
3020 kPa (440 psi) |
|||||
| FORWARD 3 | 3 and 6 | 3034 kPa (440 psi) |
2100 kPa (305 psi) |
|||||
| FORWARD 4 | 2 and 6 | 2170 kPa (315 psi) |
3034 kPa (440 psi) |
|||||
| FORWARD 5 | 3 and 5 | 3020 kPa (440 psi) |
2100 kPa (305 psi) |
|||||
| FORWARD 6 | 2 and 5 | 2170 kPa (315 psi) |
3020 kPa (440 psi) |
|||||
| FORWARD 7 | 3 and 4 | 2070 kPa (300 psi) |
2100 kPa (305 psi) |
|||||
| FORWARD 8 | 2 and 4 | 2170 kPa (315 psi) |
2070 kPa (300 psi) |
|||||
| ( 1 ) | The tolerance is + 240 − 100 kPa (+ 35 − 15 psi). |
| ( 1 ) | The tolerance is ± 280 kPa (± 41 psi). |
Transmission Bench Test Data Sheet
| CATERPILLAR | Transmission Bench Test Data Sheet | Test Date: |
| Model: | ||
| Work Order: | Serial No.: | |
Solenoid Test
| Solenoid Test | Solenoid 1 | Solenoid 2 | |
_______ ohms |
_______ ohms |
||
Preliminary Checks
| Transmission Lubrication Pressure | Input Speed (600 ± 5 rpm) | kPa (psi) |
|||
Priority Reducing Valve
| Priority Reducing Valve | Input Speed (600 ± 5 rpm) | kPa (psi) |
||||
Neutralizer Valve
| Neutralizer Valve (Step 1) | Input Speed (600 ± 5 rpm) | |||||
| A | B | C | E | F | G | H |
| kPa (psi) |
kPa (psi) |
kPa (psi) |
kPa (psi) |
kPa (psi) |
kPa (psi) |
kPa (psi) |
| Neutralizer Valve (Step 2) | Gear Range NEUTRAL | ||||||
| Station | F | kPa (psi) |
The clutch pressure must rise to normal pressure. | Yes | No | ||
Torque Converter Inlet Relief Valve
| Torque Converter Inlet Relief Valve | Output Flow 38.00 ± 0.20 L/min (10.00 ± 0.05 US gpm) |
kPa (psi) |
|||
Lube Circuit Check
| Lube Circuit Check | Gear Range FORWARD 4 Output Flow 57 ± 0.4 L/min (15 ± .1 US gpm) |
|||
| Transmission Lubrication Pressure | kPa (psi) |
|||
Primary Pressure Check
| Primary Pressure Check | The Load Piston Plugs are removed. Input Speed (600 ± 5 rpm) |
||||
| Station | Clutch | Specification | Original Pressure | Amount of Adjustment | Last Pressure |
| A | 1 | 360 kPa (52 psi) (1) |
|||
| B | 2 | 500 kPa (72 psi) (1) |
|||
| C | 7 | 380 kPa (55 psi) (1) |
|||
| E | 5 | 380 kPa (55 psi) (1) |
|||
| F | 4 | 345 kPa (50 psi) (1) |
|||
| G | 6 | 325 kPa (47 psi) (1) |
|||
| H | 3 | 310 kPa (45 psi) (1) |
|||
| ( 1 ) | The tolerance is + 50 − 35 kPa (+ 7 − 5 psi). |
Pressure Check (Low Idle)
| Pressure Check (Low Idle) | Load Piston Plugs are installed. Input Speed (600 ± 5 rpm) |
||||||||
| Gear Range | Active Clutches | A | B | C | E | F | G | H | |
| NEUTRAL | - | 4 | |||||||
| REVERSE | 1 | 7 | |||||||
| FORWARD 1 | 1 | 6 | |||||||
| FORWARD 2 | 1 | 5 | |||||||
Pressure Check (High Idle)
| Pressure Check (High Idle) | Load Pistons are installed. Input Speed (2200 ± 10 rpm) |
||||||||
| Gear Range | Active Clutches | A | B | C | E | F | G | H | |
| NEUTRAL | - | 4 | |||||||
| REVERSE | 1 | 7 | |||||||
| FORWARD 1 | 1 | 6 | |||||||
| FORWARD 2 | 1 | 5 | |||||||
| FORWARD 3 | 3 | 6 | |||||||
| FORWARD 4 | 2 | 6 | |||||||
| FORWARD 5 | 3 | 5 | |||||||
| FORWARD 6 | 2 | 5 | |||||||
| FORWARD 7 | 3 | 4 | |||||||
| FORWARD 8 | 2 | 4 | |||||||
Contamination Control
| ISO Particle Count | Sample the test bench oil supply. | ________/________Particle Count |
| ______________________________________ Technician |
______________________________________ Supervisor |