- Motor Grader:
- 120M (S/N: B9C1-UP; D9W1-UP)
- 12M (S/N: B9F1-UP)
Description of Change: The new lines group has been created in order to resolve issues with the location and the support of the shutoff valve for the heater supply.
Adaptable To: The new 246-6120 Heater Lines Gp should be installed with the corresponding procedure that is located below.
This change is effective for the serial numbers that are listed in Table 1.
| Effective Serial Numbers |
| S/N:B9C00252-UP |
| S/N:D9W00105-UP |
| S/N:B9F00275-UP |
Installation Without an Air Compressor
- Remove the following parts and discard the following parts: 208-1629 Elbow As, 302-2623 Tube As, 148-8370 Elbow As and 169-4279 Connector As. Refer to Illustration 1 for the locations of the parts.
 | |
| Illustration 1 | g01765333 |
(1) 302-2623 Tube As (2) 208-1629 Elbow As (3) 223-5916 Manual Valve As (4) 8L-6005 Pipe Tee that is used on machines with an air compressor (5) 3K-7928 Elbow (6) 148-8370 Elbow As and 148-8370 Elbow As (7) 5P-0767 Hose | |
- Install the 223-5916 Manual Valve As and the 5P-0767 Hose onto the coolant manifold of the engine with the 2D-8910 Elbow and the 002-6454 Pipe Nipple. Refer to Illustration 2.
Note: Make sure that the handle of the valve points upward when the valve is in the open position.
 | |
| Illustration 2 | g01765354 |
(8) Water manifold (9) 002-6454 Pipe Nipple (10) 2D-8910 Elbow | |
Installation With an Air Compressor
- Remove the following parts and discard the following parts: 208-1629 Elbow As, 302-2623 Tube As, 148-8370 Elbow As and 169-4279 Connector As. Refer to Illustration 1 for the locations of the parts.
- Install the 002-6454 Pipe Nipple and the 2D-8910 Elbow to the coolant manifold.
 | |
| Illustration 3 | g01765393 |
(11) Supply to the cab heater (12) Supply to the air compressor | |