2007/10/15 Caterpillar

Landfill Compactor:

836G (S/N: 7MZ1-UP)

836H (S/N: BXD1-UP)

Wheel Dozer:

834G (S/N: 6GZ1-UP)

834H (S/N: BTX1-UP)

Wheel Loader:

988G (S/N: BNH1-UP; 2TW1-UP)

988H (S/N: BXY1-UP)

Description of Change: The two mounting bolts for the air conditioner compressor now use locknuts. The locknuts will prevent the mounting bolts from loosening and failures of the mounting flange.

Adaptable To:

Illustration 1	g01424039
Left side view of engine compartment (1) 8T-0389 Locknut (2) A/C compressor

The 8T-4133 Nuts have been replaced by the 8T-0389 Locknuts.

Note: Be sure to torque the 8T-0389 Locknuts to 40 N·m (30 lb ft).The new 8T-0389 Locknuts are adaptable to the following machines:

• 834H BTX1-310

• 834G (S/N: 6GZ1-UP; BPC1-UP; BTX1-UP)

• 836H BXD1-0608

• 836G (S/N: 7MZ1-UP; BRL1-UP; BXD1-UP)

• 988H BXY1-1989

• 988G (S/N: 2TW1-UP; BNH1-UP)

• 834H BTX0311-UP

• 836H BXD0609-UP

• 988H BXY1990-UP