Usage:
910E (1SF, 1YK) 910F (1SF, 1YK) 918F (2CK, 3TJ, 5DL) 924F (4YN, 5NN, 6MN, 7PN) 928F (2XL, 7YM, 8AK) Wheel Loaders;
IT12B (1KF) IT12F (1KF) IT14B (3NJ) IT14F (4EL) IT18F (5EJ, 6ZF) IT24F (4NN, 6KN) IT28F (1JL, 3CL) Integrated Toolcarriers
- SUPPLEMENT: 7/20/98
Service Magazine SEPD0418: May 25, 1998; Supplement, "Procedure To Disable Top Gears On Small Wheel Loaders And Integrated Toolcarriers," page 47."
The date of the Service Magazine is incorrect. The Supplement should read: Service Magazine SEPD0218: August 8, 1994; "Procedure To Disable Top Gears On Small Wheel Loaders And Integrated Toolcarriers."
--------------- END SUPPLEMENT ---------------
Reference: Service Manual Module SENR5751, Electronic Transmission Control System for Small Wheel Loaders.
| NOTICE |
|---|
Do not disable third gear without also disabling fourth gear. An incorrect combination of clutches will be engaged, resulting in damage to the transmission.
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Some users wish to disable fourth gear, or both third and fourth gears, to limit the top speed of the machine in their application. This can be done by making modifications to the existing machine harness. Use the following procedure that corresponds with the particular machine; autoshift or non-autoshift machines. Note that using an incorrect method will result in the autoshift not shifting automatically, and/or the logging of unwanted fault codes.
These procedures apply to all the previously listed machines with electric shift or autoshift.
Autoshift Machines
To Disable Fourth Gear
1. At the large wiring connector that connects the autoshift control, remove wire 965-WH (contact #12) from the connector.
2. Step 1 created a hole in the connector where the wire was removed. Plug the hole with an 8T-8737 Plug.
3. Splice wire 965-WH to wire 966-GY that goes to connector contact #13.
4. Solder the splice, and protect the area with 1P-0810 Tape.
This procedure causes the autoshift control to think the operator has selected "3," whether he has actually selected "3" or "4."
To Disable Third And Fourth Gears
1. Perform the Procedure "To Disable Fourth Gear," and make the specified modifications.
2. At the large wiring connector that connects to the autoshift control, remove wire 972-BU (contact #17) from the connector.
3. Step 2 created a hole in the connector where the wire was removed. Plug the hole with an 8T-8737 Plug.
4. Splice wire 972-BU to wire 971-YL that goes to contact #16.
5. Solder the splice, and protect the area with 1P-0810 Tape.
This procedure causes the autoshift control to think the operator has selected "2," when he has actually selected "2," "3," or "4."
NOTE: Do not disable third gear without also disabling fourth gear. An incorrect combination of inputs will exist and a fault code will be generated. The transmission will not shift automatically.
Non-Autoshift Machines
To Disable Fourth Gear
The shift handle has two harness connectors. Various shift handles with different harness connectors are used on the machines. For this procedure the wire ID (wire #) is the main factor. The Connector contact that corresponds to the wire ID is not the same on all machines.
Locate the two harness connectors of the shift handle. When instructed to remove a wire from the connector, remove the corresponding connector contact and the wire connector.
1. Remove wire 751-GN from the connector.
2. Splice wire 751-GN to wire 754-BU in the harness.
3. Remove wire 921-WH from the connector.
4. Splice wire 921-WH to wire 923-GY in the harness.
5. Solder the splices and protect the areas with 1P-0810 Tape.
6. Plug the connector holes where the wires were removed, with 8T-8737 Plug-DT or 9G3695 Plug-SS.
This procedure causes the transmission to remain in third gear when it would otherwise go into fourth gear.
To Disable Third And Fourth Gear
The shift handle has two harness connectors. Various shift handles with different harness connectors are used on the machines. For this procedure the wire ID (wire #) is the main factor. The connector contact is not the same on all machines.
Locate the two harness connectors of the shift handle. Modifications will be made to the harness and connectors of the shift handle. When instructed to remove a wire from the connector, remove the corresponding connector contact and the wire connector.
1. Perform the preceding procedure, "Non-Autoshift Machines," "To Disable Fourth Gear," and make the specified modifications.
2. Remove wire 901-WH from the connector.
3. Splice wire 901-WH to wire 901-PU in the harness.
4. Remove wire 926-BU from the connector.
5. Splice wire 926-BU to wire 925-YL in the harness.
6. Solder the splices and protect the areas with 1P-0810 Tape.
7. Plug the connector holes where the wires were removed, with 8T-8737 Plug-DT or 9G-3695 Plug-SS.
This procedure causes the transmission to remain in second gear when it would have otherwise go into third or fourth gear.