2008/05/05 Caterpillar

Motor Grader:

120H (S/N: CAF1-UP; 4MK1-UP; 5FM1-UP; 6NM1-UP; 2AN1-UP; 6YN1-UP; 9FN1-UP)

12H (S/N: CBK1-UP; 4XM1-UP; 5ZM1-UP; 8MN1-UP; 2LR1-UP; 2WR1-UP; 4ER1-UP; 2GS1-UP; AMZ1-UP; 1251-UP)

135H (S/N: CBC1-UP; 8ZG1-UP; BDJ1-UP; 3YK1-UP; 7PM1-UP; 8WN1-UP; AMX1-UP)

140H (S/N: CCA1-UP; 2ZK1-UP; APM1-UP; 5HM1-UP; 8JM1-UP; 8KM1-UP; 9TN1-UP; 9ZN1-UP; 3FR1-UP; 3AS1-UP; 1261-UP)

143H (S/N: 1AL1-UP; APN1-UP)

14H (S/N: ASE1-UP; 7WJ1-UP)

160H (S/N: ASD1-UP; 9EJ1-UP; 2FM1-UP; 3GM1-UP; 6WM1-UP; 9JM1-UP; CCP1-UP; 3HR1-UP; 2HS1-UP)

163H (S/N: 5AK1-UP; ARL1-UP)

16H (S/N: 6ZJ1-UP; 3JR1-UP; ATS1-UP)

24H (S/N: 7KK1-UP)

The lock check valve on certain Motor Graders has been updated. The new lock check valve will decrease the drift rates of implements. The new lock check valve will also improve serviceability. There are two different updates for the lock valves. The original lock check valve will remain serviceable for the valve section with the mounting bracket. Table 1 and Table 2 show the corresponding part numbers for the correct lock check valve.

Table 1 shows the valve groups that will use the 229-5010 Check Valve Gp. Table 2 shows the valve groups that will use the 6E-3013 Seat, 106-3658 Valve, 9J-0403 Spring, 9J-0404 Plug, and 3K-0360 O-Ring Seal in order to prevent interference with the mounting bracket.