BEARING 8N0703 - Caterpillar

EngineG3516H (S/N: GLM1-171; GLN1-128)G3520H (S/N: GFP1-121; GFR1-129)Generator SetCG170-16 (S/N: KSJ1-164)Description Of Change: The aftercooler has been improved by enhancing the joint sealing with high-quality bolts, higher torque, better sealant application, and a more robust leak test procedure.Adaptable To: The following changes are adaptable to the products within the listed serial numbers and are effective with all products after the listed serial numbers.The new part numbers are listed in Table 1.
Table 1
Qty New Part Number Part Name
1 357-5011 Aftercooler Core As
34 0S-1588 Bolts
34 107-7954 Spacers The new hardware used for the aftercooler front bonnet will be torqued using the procedure below.
Illustration 1 g06113577
Install bolts at the 1, 2, 3, and 4 positions first.
Install the rest of the bolts following the number sequence as shown in Illustration 1.
Start at bolt position number 1 and torque the bolt to 55 N m (41 lb ft). Follow the torque pattern shown in the Illustration 1 and torque the rest of the bolts to 55 N m (41 lb ft).
After completing the first torque, return to bolt positions 1, 2, 3, and 4 and retorque the bolts.
Then retorque the bolts at positions 34, 40, 37, 29, 35, 39, 38, and 36 in each corner.