2014/02/20 Caterpillar


New Anti Drift Valves are Now Used on Certain 345D and 349D Excavators {5059}

Usage:

345D L BYC
Excavator:
345D (S/N: DPA1-UP; BYC1-UP; HLC1-UP; RGD1-UP; RAE1-UP; YEE1-UP; NEG1-UP; RGG1-UP; EEH1-UP; KFH1-UP; RAJ1-UP; MLK1-UP; NLM1-UP; JKN1-UP; FES1-UP; PBT1-UP; BYW1-UP; LKY1-UP)
349D (S/N: JGB1-UP; WTD1-UP; GKF1-UP; NNF1-UP; PZG1-UP; KLH1-UP; RBJ1-UP; MEN1-UP; KHS1-UP)
Mobile Hydraulic Power Unit:
345D MHPU (S/N: P5D1-UP; L5R1-UP)
349D MHPU (S/N: DKN1-UP; MCX1-UP)

New anti drift valves are now used on the machines listed above. The new valves provide a more robust anti drift function. The new valves have been relocated from the valve body to the flange of the tube assembly. Refer to Illustrations 1 and 2of the new design and former design.




Illustration 1g03523656

Former design

(1) Plug

(2) Valve Gp

(3) Tube As




Illustration 2g03523740

New design

(1) Plug

(2) Valve Gp

(3) Tube As

Table 1
Improved Anti Drift Valves for the Machines Listed Above    
New Part Number     Part Name     Description     Former Part Number    
448-7593     Pilot Valve Gp     for STD     310-0146    
448-7594     Load Control Valve Gp     for Heavy Lift     310-0147    
448-7595     Load Control Valve Gp     for BLCV     310-0149    
448-7596     Load Control Valve Gp     for Smart Boom     310-0150    
449-8064     Tube As         319-9717    
6H-3615     Protective Plug            
9F-2167     Purge Screw            

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