2014/05/21 Caterpillar

Asphalt Paver:

AP500E (S/N: JWK1-UP)

AP555E (S/N: A5D1-UP)

AP600D (S/N: TFZ1-UP)

AP655D (S/N: GNZ1-UP)

AP1000E (S/N: DKH1-UP; T1F1-UP)

AP1055E (S/N: TJF1-UP; TRS1-UP)

Service Magazine SEPD1787, 21 May 2014, "New Hydraulic Pressure Relief Valve Is Now Used on Certain Asphalt Pavers". Disregard this article. The correct information follows.

Description of Change: New solenoid valve group in the valve and mounting group is now used on the machines listed above. The new solenoid valve reduces excess pressure in the hydraulic circuit. The new solenoid valve group will increase the service life of the hydraulic circuit for powered main frames.

Adaptable To:

Illustration 1	g03667286

New 452-5947 Solenoid Valve Gp (1) replaces the former 332-1453 Solenoid Valve Gp in the 343-7765 Valve and Mounting Gp. The 343-7765 Valve and Mounting Gp is a part of 350-1625 Extension Ar .

The new 452-5947 Solenoid Valve Gp and 343-7765 Valve and Mounting Gp are adaptable to machines and effective in production with machines listed in Table 1.

Table 1

Sales Model	Adaptable to Machines	Effective in Production with Machines
AP-500E	S/N:JWK1-191	S/N:JWK192-UP
AP-555E	S/N:A5D1-314	S/N:A5D315-UP
AP-600D	S/N:TFZ1-324	S/N:TFZ325-UP
AP-655D	S/N:GNZ1-502	S/N:GNZ503-UP
AP-1000E	(S/N: DKH1-UP; T1F1-258)	S/N:T1F259-UP
AP-1055E	(S/N: TJF1-384; TRS1-UP)	S/N:TJF385-UP