Allison HD4060 Transmission Operator Manual

Online pdf Allison HD4060 Transmission Operator Manual

Careful attention to the fluid level and connections for the electronic and hydraulic circuits is very important.
For easier inspection, the transmission should be kept clean. Make regular periodic
inspections for:

  1. Loose bolts.
  2. Leaking fluid around fittings, lines, and transmission openings.
  3. The condition of the electrical harnesses.
  4. The presence of transmission fluid in the engine cooling system and transmission fluid for the presence of coolant, which would indicate a faulty oil cooler.
  5. A clean and dirt and debris free breather (refer to Figure 3 through Figure 6) to make sure it is clean and free from dirt or debris.

Report any abnormal condition to service management.

You can help keep minor problems from becoming major problems by contacting
an Allison Transmission distributor or dealer when one of these conditions occur:

  1. Shifting feels odd.
  2. Transmission leaks fluid.
  3. Unusual transmission-related sounds (changes in sound caused by normal engine thermostatic fan cycling, while climbing a long grade with a heavy load, have been mistaken for transmission related sounds).
  4. CHECK TRANS light comes on frequently.

It is important that the proper fluid level be maintained at all times because the transmission fluid cools, lubricates, and transmits hydraulic power. If the fluid level is too low, the converter and clutches do not receive an adequate supply of fluid. If fluid level is too high, the fluid can aerate. Aerated fluid can cause the transmission to shift erratically or overheat.

An oil level sensor (OLS) is standard on Allison 4th Generation 3000 and 4000 Product Families transmissions through six-speed, and optional on 4700 OFS/SP, 4800 SP, not available on 3700 SP. The OLS allows the operator to obtain an indication of the fluid level from the full-function shift selector. However, no OLS information is available unless the OLS is “autodetected” by the TCM/ECU.

Frequently look for the presence of oil level diagnostics if the transmission is known to contain an OLS. If an OLS is not detected during a fixed number of engine starts, the TCM/ECU concludes that no OLS is present. If an OLS is known to be present, but has not been detected, then troubleshooting of the OLS circuit is required. After the OLS circuit is repaired, reset “autodetect” or manually select the OLS function using Allison DOCTM For PC–Service Tool. For detailed troubleshooting procedures refer to the Troubleshooting Manual. Refer to the SERVICE LITERATURE section for specific publication numbers.

The transmission must be equipped with the OLS to be able to read fluid level information. The oil level sensor (OLS) is standard on 3000 and 4000 Product Families transmissions (optional on the 4700 OFS/SP, 4800 SP, not available on 3700 SP).

The three Prognostics functions are enabled or disabled as a group and cannot be enabled or disabled individually. The OEM is the one who advises Allison whether the Allison Prognostics feature should be available and functional in the calibration installed in the TCM. The OEM may specify to enable the feature and also default them to run (turn them on), enable the feature but keep them turned off (not run by default but could be turned on with the Allison DOCTM re-programming tool) or finally disabled in the calibration and cannot be turned on by Allison DOCTM re-programming tool. The OEM may also specify whether Prognostics may be reset by the Allison shift selector, J1939 message, or only with the use of the Allison DOCTM For PC–Service Tool. Refer to Table 4A and Table 4B for instructions to access Prognostics Functions through the shift selectors.

Oil Life Monitor (OM). Oil life is calculated based on hours of engine and transmission operation. Miles will be approximated from the hours and calibrated information. The number of shifts per mile will determine the duty cycle of the transmission and the oil life limits will be based on the observed duty cycle. Hours will be accumulated when the engine is running including when the vehicle is stationary for PTO operation or for extended idle time.

Online pdf Allison HD4060 Transmission Operator Manual

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