2003/05/05 A New Boot Eliminates Sticking of the Pilot Valve {5059} Caterpillar


A New Boot Eliminates Sticking of the Pilot Valve {5059}
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2003/05/05 [SEPD0681]
HYDRAULIC SYSTEM
VALVE GP-PILOT
2003/05/05 A New Boot Eliminates Sticking of the Pilot Valve {5059}
Track-Type Tractor:
D8N (S/N: 5TJ1-UP; 7TK1-UP)
D8R Series II (S/N: AKA1-UP; 6YZ1-UP)
D8R (S/N: 7XM1-UP; 9EM1-UP)
D9R (S/N: ABK1-UP; 7TL1-UP)

Description of Change: A new boot and a new bracket are now used in order to eliminate the pilot valve from sticking. The new boot is securely fastened at the bottom in order to prevent contamination. The new boot and the new bracket produce an airtight seal around the pilot valve.

Adaptable To: The new 202-1214 Boot and the new 199-9102 Bracket are effective with D8R (S/N: 6YZ1250-UP; AKA687-UP; 9EM1612-UP) and D9R (S/N: ABK820-UP) Track-Type Tractors. The new boot and the new bracket are adaptable to D8N (S/N: 5TJ1-UP; 7TK1-UP), D8R (S/N: 6YZ1-UP; AKA1-UP; 7XM1-UP; 9EM1-UP), and D9R (S/N: 7TL1-UP; ABK1-UP) Track-Type Tractors.

Table 1
Valve Groups that are Affected    
D8N and D8R     9T-8693     Pilot Valve    
D9R     6E-5648     Pilot Valve    

Table 2
Model     New Part Number     Description     Former Part Number    
D8N, D8R, D9R     199-9102     Bracket     6E-1133    
202-1214 Boot     1U-2765    

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