2010/05/06 Caterpillar

Articulated Truck:

735 (S/N: B1N1-UP; AWR461-UP)

740 (S/N: AXM880-UP)

740 (S/N: B1P1-UP)

740 EJECTOR (S/N: B1R1-UP; AZZ295-UP)

Service Magazine SEPD1092, 04 March 2010, "A New Pump Control Valve Group For Steering Has Been Introduced for Articulated Trucks". Disregard this article. See the replacement article that follows.

Description of Change: A new pump control valve group has been introduced for the listed machines.

Adaptable To:

Table 1

Parts List
Qy	New Part	Description	Former Part
1	349-5918	Pump Control Valve Gp	184-5174

The new 349-5918 Pump Control Valve Gp is a direct replacement of the former 184-5174 Pump Control Valve Gp. Both of these pump control valves are a part of the 224-4432 Piston Pump Gp, which will not be changed. The improved pump control valve group will help maintain the proper settings for the pump.

The new pump control valve group is adaptable to the following machines:

• 735 (S/N: AWR461-UP)

• 735 (S/N: B1N1-1362)

• 740 (S/N: AXM880-UP)

• 740 (S/N: B1P1-5260)

• 740 EJECTOR (S/N: AZZ295-UP)

• 740 EJECTOR (S/N: B1R1-504)

The new pump control valve group is effective in production on the following machines:

• 735 (S/N: B1N1363-UP)

• 740 (S/N: B1P5261-UP)

• 740 EJECTOR (S/N: B1R505-UP)