Improved Needle Valve Fuel Supply Tubes Are Now Used on Certain G3600 A4 Engines {1274} Caterpillar


Improved Needle Valve Fuel Supply Tubes Are Now Used on Certain G3600 A4 Engines {1274}

Usage:

G3612 BB2
Petroleum Engine
G3606 (S/N: JFE1-UP)
G3608 (S/N: XH71-UP)
G3612 (S/N: BB21-UP)
G3616 (S/N: ZZY1-UP)

Description Of Change: The improved fuel supply tubes are made from thicker wall tubing.

Adaptable To: The improved 384-1215 Tube As and 389-8384 Tube As are adaptable to the above engines back to first production.

The parts are listed in Table 1.

Table 1
Qty Per Cylinder  Part Number  Part Name 
124-9633  Clip 
384-1215  Tube As 
389-8384  Tube As 
389-8393  Seal 
This change is effective for the serial numbers listed in Table 2.

Table 2
Effective Serial Numbers 
S/N:JFE00106-UP 
S/N:XH700107-UP 
S/N:BB200103-UP 
S/N:ZZY00107-UP 


Illustration 1g06065558
(1) 389-8384 Tube As
(2) 389-8393 Seal
(3) 384-1215 Tube As
(4) 124-9633 Clip

Torque the adapter between the needle valve and tube assemblies ... 55 ± 5 N·m (41 ± 4 lb ft)

Torque the tube assembly nuts ... 55 ± 5 N·m (41 ± 4 lb ft)

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