Usage:
928G (6XR, 7SR) Wheel Loaders;
IT28G (8CR, 9AR) Integrated Toolcarriers
Description of Change: A new water separator is now used on the 928G Wheel Loaders and the IT28G Integrated Toolcarriers. The new reverse flow separator ensures that the fuel passes through the element before coming in contact with the priming pump. This change should prevent debris from lodging in the priming pump. The filter elements have also changed.
Adaptable To: The 149-2683 Water Separator replaced the 127-6449 Water Separator. The change was made to provide a reverse flow water separator in the 118-0846 Fuel Line. The effectivity of this change is listed in Table 1.
Illustration 1. The 149-2683 Water Separator. See Table 2.
See Table 2 and Illustration 2 for the service parts of the 149-2683 Water Separator. The 149-2683 Water Separator uses the 151-2409 Filter Element. The former 127-6449 Water Separator uses the 117-4089 Water Separator Element. Consult the Parts Manual for the serviceable parts of the 127-6449 Water Separator.
The direction of flow is opposite on each of these elements. For this reason, the elements are not interchangeable. To prevent incorrect installation the elements are "keyed" differently at the top.
Illustration 2. Comparisons of two different water separators. Mounting Pad (3). The former 127-6449 Water Separator (1) uses a rectangular shaped pad. The 149-2683 Water Separator (2) uses a triangular shaped pad.
However, with effort an incorrect element can be incorrectly installed on the incorrect water separator. The two water separators can be distinguished by the style of the mounting pad (3). The former 127-6449 Water Separator (1) uses a rectangular shaped pad. The 149-2683 Water Separator (2) uses a triangular shaped pad. See Illustration 2.
The 149-2683 Water Separator must be purged of air. Loosen the bleed plug and allow the fuel to escape until air is no longer present. Tighten the bleed plug to a torque of 24 ± 2 N·m (210 ± 18 lb. in).