- Off-Highway Truck/Tractor:
- 770G (S/N: KDH1-UP; ECM1-UP; ECX1-UP)
- 772G (S/N: LTS1-UP; KEX1-UP)
Introduction
Revision     | Summary of Changes in REHS3624     |
01     | Standardized.     |
© 2015 Caterpillar All Rights Reserved. This guideline is for the use of Caterpillar 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 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
Machine Model     | Transmission Arrangement     |
770G     | 303-9464     |
772G     | 322-1545, 326-4095     |
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.
Important Safety Information
Illustration 1 | g02139237 |
Follow all safety warnings. Most accidents that involve product operation, maintenance, or repair are caused by failure to observe safety warnings. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs. Personnel must be properly trained in order to perform maintenance, repair, or operate any machine. Safety precautions and warnings are provided this instruction and on Caterpillar products. These warnings should be observed before performing any procedures. Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard. The warnings in this publication and on the product are not all inclusive.
The hazards are identified by the "Safety Alert Symbol" which is followed by a "Signal Word" such as "DANGER", "WARNING, or" "CAUTION". The "WARNING" Safety Alert Symbol is shown in illustration below.
Illustration 2 | g00008666 |
This safety alert symbol means:
Pay Attention!
Become Alert!
Your Safety is Involved.
The message that appears under the safety alert symbol explains the hazard.
Operations that may cause product damage are identified by "NOTICE" labels on the product and in this publication.
Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard. The safety information in this document and the safety information on the machine are not all inclusive. Determine that the tools, procedures, work methods, and operating techniques are safe. Determine that the operation, lubrication, maintenance, and repair procedures will not damage the machine. Also, determine that the operation, lubrication, maintenance, and repair procedures will not make the machine unsafe.
The information, the specifications, and the illustrations that exist in this guideline are based on information which was available at the time of publication. The specifications, torques, pressures, measurements, adjustments, illustrations, and other items can change at any time. These changes can affect the service that is given to the product. Obtain the complete, most current information before you start any job. Caterpillar dealers can supply the most current information.
Collecting the Test Data
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.
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 to develop this test procedure.
Required Tools     | |||
---|---|---|---|
Tool     | Part Number     | Part Description     | Qty     |
A     | 1U-9584     | Rail As     | 2     |
4C-9998 | Bracket     | 2     | |
9U-6001 | Crossmember     | 1     | |
1D-4614 | Bolt (3/4-10X5.0 inch)     | 4     | |
5P-8248 | Hard Washer     | 4     | |
2J-3506 | Full Nut     | 4     | |
1U-9585 | Block Gp     | 1     | |
B     | 1U-5798     | Drive Adapter Gp     | 1     |
C     | 4C-4701     | Spindle Adapter     | 1     |
2J-5245 | Bolt (3/8-16X1.25 inch)     | 4     | |
3B-4506 | Lockwasher     | 4     | |
D     | 1U-5999     | Spindle Gp     | 1     |
0S-1587 | Bolt (1/2-13X1.75 inch)     | 4     | |
3B-4508 | Lockwasher     | 4     | |
E     | 1U-6721     | Adapter (Drive)     | 1     |
F     | 1U-9131     | Drive Adapter (Key) (1)     | 1     |
G     | 1U-9359     | Drive Adapter (2)     | 1     |
H     | 439-3940     | Link Bracket As     | 2     |
1U-9722 | Load Binder As (Ratchet Type)     | 3     | |
J     | 4C-4898     | Cover (Transmission Test)     | 1     |
K     | 9U-7444     | Adapter     | 1     |
7M-8485 | O-Ring Seal     | 1     | |
L     | FT-2974     | Adapter (Overflow)     | 1     |
0S-1594 | Bolt (3/8-16X1 inch)     | 3     | |
5M-2894 | Hard Washer     | 3     | |
M     | 6V-3137     | Magnetic Base (Photo Pickup)     | 1     |
N     | 235-4764     | Adapter     | 1     |
8C-5212 | O-Ring Seal     | 1     | |
140-5978 | Fitting     | 1     | |
1U-9879 | Fitting (Camlock fitting)     | 1     | |
0T-0573 | Bolt (3/8-16X2.75 inch)     | 4     | |
5M-2894 | Hard Washer     | 4     | |
AA     | 9U-7444     | Adapter (Flange)     | 1     |
1U-8301 | Fitting (Flange)     | 1     | |
1P-4577 | Half Flange     | 2     | |
8C-9024 | Fitting As (Plain)     | 1     | |
6V-3965 | Fitting As (Quick Disconnect)     | 1     | |
3J-1907 | O-Ring Seal     | 1     | |
0S-1588 | Bolt (3/8-16X1.25 inch)     | 4     | |
5M-2894 | Hard Washer     | 4     | |
P     | 9U-7445     | Adapter     | 1     |
1U-8301 | Fitting     | 1     | |
1P-4578 | Half Flange     | 2     | |
8C-9024 | Fitting As (Plain)     | 1     | |
6V-3965 | Fitting As (Quick Disconnect)     | 1     | |
3J-1907 | O-Ring Seal     | 1     | |
1D-4707 | Bolt (7/16-14X2.25 inch)     | 4     | |
5P-8244 | Washer     | 4     | |
Q     | 9U-7446     | Adapter     | 1     |
1U-8304 | Fitting     | 1     | |
1P-4579 | Half Flange     | 2     | |
8C-9024 | Fitting As (Plain)     | 1     | |
6V-3965 | Fitting As (Quick Disconnect)     | 1     | |
3J-1907 | O-Ring Seal     | 1     | |
0S-1585 | Bolt (1/2-13X1.50 inch)     | 4     | |
5P-8245 | Hard Washer     | 4     | |
R     | 9U-7446     | Adapter     | 1     |
1U-8304 | Fitting     | 1     | |
1P-4579 | Half Flange     | 2     | |
8C-9024 | Fitting As (Plain)     | 1     | |
6V-3965 | Fitting As (Quick Disconnect)     | 1     | |
3J-1907 | O-Ring Seal     | 1     | |
1B-2886 | Bolt (1/2-13X3.75 inch)     | 4     | |
5P-8245 | Hard Washer     | 4     | |
S     | (3)     | Fitting     | 1     |
3B-7721 | Reducer Bushing     | 1     | |
8T-3613 | Fitting As     | 1     | |
T     | 8T-0855     | Pressure Gauge (0 to 4,000 kPa (0 to 580 psi))     | 10     |
6V-4144 | Coupler     | 10     | |
U     | 8T-0854     | Pressure Gauge (0 to 1,000 kPa (0 to 145 psi))     | 1     |
6V-4144 | Coupler     | 1     | |
V     | 8T-0862     | Pressure Gauge (-100 to 500 kPa (-15 to 72 psi))     | 1     |
6V-4144 | Coupler     | 1     | |
W     | 9U-7500     | Transmission Analyzer Tool Gp     | 1     |
OR | |||
277-2362 | Transmission Analyzer III Gp     | 1     | |
306-0397 | Extension Cable     | 1     | |
1U-9482 | Adapter Cable As     | 1     | |
232-1065 | Adapter Cable As     | 3     | |
X     | 146-4080     | Digital Multimeter     | 1     |
5P-5677 | Electrical Wire     | 1     | |
155-2270 | Connecting Plug Kit     | 1     | |
186-3736 | Connector Socket     | 2     | |
Y     | 9U-7400     | Multitach Tool Gp     | 1     |
211-1774 | Adapter Cable As (Speed Sensor)     | 2     | |
Z     | 120-6843     | Ball or Gate Valve     | 1     |
8C-9024 | Nipple (Quick Disconnect)     | 1     | |
8C-9025 | Coupler (Quick Disconnect)     | 1     | |
3B-7749 | Nipple (Close)     | 1     |
( 1 ) | This drive adapter is used with the small drive shaft. |
( 2 ) | This drive adapter is used with the large drive shaft. |
( 3 ) | Parker 8-3/8 AOEG |
FT Drawings
Illustration 3 | g03866789 |
FT-2974 (1) Plate (6.35x 177.8x 190.4) (2) Pipe Nipple (3 inch NPT) (3) Pipe Elbow (3 inch NPT) (4) Nipple (3 inch NPT/3 inch ID hose) (5) Clamp (Punch-LOK P18-S) (6) Hose (3 inch ID) |
Installation Procedure
- Install Tooling (A) on the test bench.
Illustration 4 | g03868418 |
- Use a hoist to install the transmission on the test bench. The weight of the transmission is 1385 kg (3050 lb).
Illustration 5 | g00959585 |
- Use a hoist to install Tooling (B) on the torque converter. The weight of Tooling (B) is 24.5 kg (54 lb).
Illustration 6 | g00959586 |
- Use a hoist to install Tooling (C) to the transmission case. The weight of Tooling (C) is 39 kg (86 lb).
Illustration 7 | g00959588 |
- Use a hoist to install Tooling (D) on Tooling (C). The weight of Tooling (D) is 121 kg (267 lb).
Illustration 8 | g00959590 |
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.
- Tighten the collet on Tooling (D) to connect Tooling (D) to Tooling (B) .
Illustration 9 | g00959592 |
- Install Tooling (E) to the input shaft of Tooling (D) .
Illustration 10 | g00959598 |
- Install Tooling (F) to the input shaft of Tooling (E) .
Note: Tooling (F) will adapt to the small drive shaft. If you are using the large drive shaft, install Tooling (G) on Tooling (F) .
Illustration 11 | g00959599 |
- Align the transmission with the input drive shaft.
Illustration 12 | g00959600 |
- Connect the input drive shaft to Tooling (F) .
- Install the drive shaft guard.
Illustration 13 | g00959602 |
- Tighten all four castle nuts and jack bolts.
Illustration 14 | g03802221 |
- Install Tooling (H) to the input and output end of the transmission.
Illustration 15 | g02457316 |
- Install Tooling (J) after removing transmission cover.
Illustration 16 | g02722212 |
- Remove plug (4) .
Illustration 17 | g00959627 |
- Install Tooling (K) .
Note: Tooling (K) will activate the drain valve, allowing the oil to drain into the test bench.
Illustration 18 | g00959629 |
- Remove cover (5) .
Illustration 19 | g00959631 |
- Install Tooling (L) .
Illustration 20 | g00959634 |
- Remove cover (6) .
Illustration 21 | g00959636 |
- Remove the magnetic filter.
- Install Tooling (M) .
Note: Tooling (M) will block the oil flow to the oil pan.
Illustration 22 | g00959639 |
- Install Tooling (N) .
Illustration 23 | g00959642 |
- Install Tooling (AA) .
Illustration 24 | g03868035 |
- Install Tooling (P) .
Illustration 25 | g02479956 |
- Install Tooling (Q) .
Illustration 26 | g00959649 |
- Install tooling (Z) .
Illustration 27 | g02722207 |
- Install Tooling (R) .
Illustration 28 | g02480179 |
- Cover Tooling (C). Use a suitable clean cover.
Illustration 29 | g00959656 |
- Connect hose assembly (7) from the gravity feed pump supply to Tooling (N) .
Illustration 30 | g00959658 |
- Connect hose assembly (8) from Tooling (AA) to the No. 1 flow meter inlet.
Illustration 31 | g03868039 |
Outlet for the Transmission Oil Pump |
- Connect hose assembly (9) from the outlet of the No. 1 flow meter to Tooling (P) .
Illustration 32 | g02722203 |
- Connect hose assembly (10) from Tooling (Z) to the No. 2 flow meter inlet.
Illustration 33 | g02722202 |
Converter Outlet |
- Connect hose assembly (11) from the outlet of the No. 2 flow meter to Tooling (R) .
Illustration 34 | g02480398 |
Inlet for the Transmission Lubrication Oil |
- Connect lube line (12) from the test bench to Tooling (D). Maintain an oil pressure of 275 kPa (40 psi).
Illustration 35 | g00959672 |
- Connect a pressure gauge to pressure taps (13), (14), (15), (16), (17), (18), (19), (20), (21), and (22) .
Illustration 36 | g02722199 |
(13) Torque converter inlet (14) Main Relief (15) No. 5 clutch (16) No. 3 clutch (17) No. 4 clutch (18) Lockup clutch (19) No. 1 clutch (20) No. 2 clutch (21) No. 7 clutch (22) No. 6 clutch |
Note: If you are using individual pressure gauges to measure the pressures, refer to Table 3 for the correct pressure gauges.
- Connect a pressure gauge to Tooling (R) .
Illustration 37 | g00959682 |
Transmission Lubrication Pressure Tap |
- Connect Tooling (W) to harness connector.
Illustration 38 | g02722198 |
- Connect Tooling (W) to a suitable location.
Illustration 39 | g00959686 |
- Connect Tooling (W) to a power source. Refer to Tool Operating Manual, NEHS0644 or Tool Operating Manual, NEHS0996 for the correct operating instructions.
Illustration 40 | g00877510 |
Tooling (W) |
Illustration 41 | g01457869 |
Tooling (W) |
Test Procedure
TA3 Navigation
- Select "Generic ICM Xmsn".
- Select "7 Speed 2 Reverse ICM-24V".
Harness Test (TA3 only)
- Make sure that the harness is properly connected.
- Use Tooling (W) to perform the harness test.
- Record the values in Table 6.
Note: Do not continue testing until Harness Test passes.
Solenoid Test (TA2 only)
- Make sure that the harness is properly connected.
- Use Tooling (W) to perform the solenoid test.
- Record the values in Table 6.
Note: Do not continue testing until Solenoid Test passes.
Start Checks
- 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.
Note: Refer to Testing and Adjusting, UENR1123, "770G and 772G Off-Highway Truck Power Train" for the correct adjusting procedures.
- With the transmission in the NEUTRAL position, rotate the input shaft in a counterclockwise direction. Adjust the input rotation to 600 ± 25 rpm.
Illustration 42 | g02720621 |
- Shift the transmission through all directions and through all speed ranges to eliminate air from the transmission controls.
- Confirm the correct clutch engagement with Table 4.
Show/hide table
Table 4 Clutch Engagement Check     Gear     Cl 1     Cl 2     Cl 3     Cl 4     Cl 5     Cl 6     Cl 7     N     X                             R1     X                         X     R2             X                 X     F1         X                 X         F2     X                     X         F3             X             X         F4     X                 X             F5             X         X             F6     X             X                 F7             X     X                
- Check for lockup or excessive drag in all ranges.
- Adjust the input rotation to 0 rpm.
- Use the following procedure to test the transmission.
Speed Sensor Test
- Connect Tooling (X) to input speed sensor (25) .
Illustration 43 | g02722193 |
Note: There is one input sensor to be tested.
Illustration 44 | g02482001 |
Note: There are two output speed sensors on rear end of transmission output shaft that must be tested and identified.
- Use Tooling (X) to measure the resistance.
- Connect Tooling (X) to output speed sensor (26) .
- Use Tooling (X) to measure the resistance.
- Connect Tooling (X) to output speed sensor (27) .
- Use Tooling (X) to measure the resistance.
- Record the values in Table 8.
- Verify the test points with the values in Table 7.
Pump Flow Test
- Adjust the input rotation to 600 ± 25 rpm in the NEUTRAL position.
- Shift the transmission to the FORWARD 1 position.
- Record the pump supply flow in Table 9.
- Adjust the input rotation to 1950 ± 25 rpm.
- Record the pump supply flow in Table 9.
- Shift the transmission to the NEUTRAL position.
- Adjust the input rotation to 600 ± 25 rpm.
Main Relief Pressure
- Adjust the input rotation to 1950 ± 25 rpm in the NEUTRAL position.
- Check the pressure for the main relief valve. The correct pressure must be 3100 ± 70 kPa (450 ± 10 psi).
- Record the main relief pressure in Table 10.
- Adjust the input rotation to 600 ± 25 rpm in the NEUTRAL position.
Torque Converter Inlet Relief Valve
- Adjust the input rotation to 600 ± 25 rpm in the NEUTRAL position.
- Shift the transmission to the FORWARD 1 position.
- Adjust the input rotation until the pump supply flow is 38 ± 4 L/min (10 ± 1 US gpm). Maintain this flow during this check.
- Momentarily block the lube flow.
- The converter inlet pressure must be 930 ± 100 kPa (135 ± 15 psi).
- Open the lube flow.
- Shift the transmission to the NEUTRAL position.
- Record the value in Table 11.
Lube Circuit Check
- Adjust the input rotation to 600 ± 25 rpm in the NEUTRAL position.
- Shift the transmission to the FORWARD 2 position.
- Adjust the input rotation until the lube flow is 115 ± 4 L/min (30 ± 1 US gpm). Maintain this flow during this check.
- The lube pressure must be within 7 kPa (1 psi) of the average for this arrangement. Reference is 124 ± 21 kPa (18 ± 3 psi).
- Shift the transmission to the NEUTRAL position.
- Adjust the input rotation to 600 ± 25 rpm.
- Record the value in Table 12.
Lube Pressure Test
- Adjust the input rotation to 600 ± 25 rpm in the NEUTRAL position.
- Shift the transmission to the FORWARD 1 position.
- Record the lube pressure in Table 13.
- Record the lube flow in Table 13.
- Shift the transmission to the NEUTRAL position.
- Shift the transmission to the REVERSE 2 position.
- Record the lube pressure in Table 13.
- Record the lube flow in Table 13.
- Adjust the input rotation to 1950 ± 25 rpm.
- Record the lube pressure in Table 14.
- Record the lube flow in Table 14.
- Adjust the input rotation to 600 ± 25 rpm.
- Shift the transmission to the NEUTRAL position.
- Shift the transmission to the FORWARD 1 position.
- Adjust the input rotation to 1950 ± 25 rpm.
- Record the lube pressure in Table 14.
- Record the lube flow in Table 14.
- The lube pressure must be minimum 15 kPa (2 psi).
- The lube flow must be minimum 39 L/min (10 US gpm).
- Shift the transmission through positions FORWARD 2, FORWARD 3, FORWARD 4, FORWARD 5, FORWARD 6, and FORWARD 7. Repeat Steps 16 through 17 for each gear range.
- The lube pressure must be minimum 186 kPa (27 psi).
- The lube flow must be minimum 148 L/min (39 US gpm).
- Adjust the input rotation to 600 ± 25 rpm.
- Shift the transmission to the NEUTRAL position.
- Stop the input rotation.
Final Pressure Checks (High Idle)
- Adjust the input rotation to 600 ± 25 rpm with the transmission in the NEUTRAL position.
- Adjust the input rotation to 1950 ± 25 rpm.
- Record the clutch pressure in Table 16.
- Adjust the input rotation to 600 ± 25 rpm.
- Shift the transmission through positions REVERSE 1 and REVERSE 2. Repeat Steps 2 through 4 for each gear range.
- Shift the transmission to the NEUTRAL position.
- Adjust the input rotation to 1950 ± 25 rpm.
- Shift the transmission to the FORWARD 1 position.
- Record the clutch pressure in Table 16.
- Shift the transmission through positions FORWARD 2, FORWARD 3, FORWARD 4, FORWARD 5, FORWARD 6, and FORWARD 7. Record the clutch pressure for each gear range.
- Adjust the input rotation to 600 ± 25 rpm.
- Shift the transmission to the NEUTRAL position.
- Verify that the clutch pressures match the values in Table 15.
- Stop the input rotation.
ISO Particle Count
- Sample the test bench oil supply.
- Record the particle count in Table 17.
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     | Solenoid 3     |
________ ohms | ________ ohms     | ________ ohms     |
Speed Sensor Test
Speed Sensor Test     | ||
Sensor     | Resistance     | |
Minimum | Maximum     | |
Transmission Output Speed Sensor "A"     |
750 Ω     | 1500 Ω     |
Transmission Output Speed Sensor "B"     |
750 Ω     | 1500 Ω     |
Input Speed Sensor "C"     |
750 Ω     | 1500 Ω     |
Speed Sensor Test     | ||
Sensor     | Resistance     | |
Transmission Output Speed Sensor "A"     |
______________________ Ω     | |
Transmission Output Speed Sensor "B"     |
______________________ Ω     | |
Input Speed Sensor "C"     |
______________________ Ω     |
Pump Flow Test
Pump Flow Test     | Gear Range FORWARD 1     | |
600 ± 25 | 1950 ± 25     | |
_______L/min (gpm) |
_______L/min (gpm)     |
Main Relief Pressure
Main Relief Pressure     | Input Speed (1950 ± 25 rpm) Gear Range NEUTRAL     |
_______kPa _______(psi)     |
Converter Inlet Relief Valve
Converter Inlet Relief Valve     | Pump Supply Flow 38 ± 4 L/min (10 ± 1 US gpm) Gear Range FORWARD 1     |
Converter Outlet Pressure     | _______kPa _______(psi)     |
Lube Circuit Check
Lube Circuit Check     | Gear Range FORWARD 2 Output Flow 114 ± 4 L/min (30 ± 1 US gpm)     |
||
Average Lube Pressure Of Arrangement     | _______kPa _______(psi)     |
Lube Pressure     | _______kPa _______(psi)     |
Lube Pressure Check (Low Idle)
Lube Pressure Check (Low Idle)     |
Input Speed (600 ± 25 rpm)     | |
Gear Range     | Lube Pressure     | Lube Flow     |
REVERSE 2     |
_______kPa (psi)     | _______L/min (US gpm)     |
FORWARD 1     |
_______kPa (psi)     | _______L/min (US gpm)     |
Lube Pressure Check (High Idle)
Lube Pressure Check (High Idle)     |
Input Speed (1950 ± 25 rpm)     | |
Gear Range     | Lube Pressure     | Lube Flow     |
REVERSE 2     |
_______kPa (psi)     | _______L/min (US gpm)     |
FORWARD 1     |
_______kPa (psi)     | _______L/min (US gpm)     |
FORWARD 2     |
_______kPa (psi)     | _______L/min (US gpm)     |
FORWARD 3     |
_______kPa (psi)     | _______L/min (US gpm)     |
FORWARD 4     |
_______kPa (psi)     | _______L/min (US gpm)     |
FORWARD 5     |
_______kPa (psi)     | _______L/min (US gpm)     |
FORWARD 6     |
_______kPa (psi)     | _______L/min (US gpm)     |
FORWARD 7     |
_______kPa (psi)     | _______L/min (US gpm)     |
Final Pressure Checks (High Idle)
Final Clutch Pressure (High Idle)     | |||||||||
Callout No.     | "16"     | "19"     | "20"     | "18"     | "15"     | "17"     | "22"     | "21"     | |
Clutch     | No. 3 (1)     | No. 1 (1)     | No. 2 (1)     | LUC (2)     | No. 5 (1)     | No. 4 (1)     | No. 6 (1)     | No. 7 (1)     | |
Speed Range     | Engaged Clutches     | Pressure     | |||||||
R1     | 1 and 7     |     | 3102 kPa (450 psi)     |
    |     |     |     |     | 3102 kPa (450 psi)     |
R2     | 3 and 7     | 1930 kPa (280 psi)     |
    |     |     |     |     |     | 3102 kPa (450 psi)     |
N     | 1     |     | 3102 kPa (450 psi)     |
    |     |     |     |     |     |
1     | 2 and 6     |     |     | 1999 kPa (290 psi)     |
2082 kPa (302 psi)     |
    |     | 2999 kPa (435 psi)     |
    |
2     | 1 and 6     |     | 3033 kPa (440 psi)     |
    |     | 2999 kPa (435 psi)     |
    | ||
3     | 3 and 6     | 1930 kPa (280 psi)     |
    |     |     | 2999 kPa (435 psi)     |
    | ||
4     | 1 and 5     |     | 3033 kPa (440 psi)     |
    | 2206 kPa (320 psi) |
    |     |     | |
5     | 3 and 5     | 1896 kPa (275 psi)     |
    |     | 2137 kPa (310 psi) |
    |     |     | |
6     | 1 and 4     |     | 3033 kPa (440 psi)     |
    | 1551 kPa (225 psi)     |
    |     | ||
7     | 3 and 4     | 1896 kPa (275 psi)     |
    |     | 1551 kPa (225 psi)     |
    |     |
( 1 ) | The tolerance is ± 207 kPa (± 30 psi). |
( 2 ) | The tolerance is ± 207 kPa (± 30 psi). |
Final Pressure Checks (High Idle)     | Input Speed (1950 ± 25 rpm)     | |||||||||
Callout No.     | 16     | 19     | 20     | 18     | 15     | 17     | 22     | 21     | ||
Clutch     | 3     | 1     | 2     | LUC     | 5     | 4     | 6     | 7     | ||
Gear Range     | Active Clutches     | Pressures     | ||||||||
R2     | 3     | 7     |     |     |     |     |     |     |     |     |
R1     | 1     | 7     |     |     |     |     |     |     |     |     |
N     | 1     | -     |     |     |     |     |     |     |     |     |
1     | 2     | 6     |     |     |     |     |     |     |     |     |
2     | 1     | 6     |     |     |     |     |     |     |     |     |
3     | 3     | 6     |     |     |     |     |     |     |     |     |
4     | 1     | 5     |     |     |     |     |     |     |     |     |
5     | 3     | 5     |     |     |     |     |     |     |     |     |
6     | 1     | 4     |     |     |     |     |     |     |     |     |
7     | 3     | 4     |     |     |     |     |     |     |     |     |
ISO Particle Count
ISO Particle Count     | Sample the test bench oil supply.     | ________/________Particle Count     |
______________________________________ Technician     |
______________________________________ Supervisor     |