PISTON AS 4Z6423 - Caterpillar

Introduction
The problem that is identified below does not have a permanent solution. Until a permanent solution is available, use the solution that is identified below.Problem
Illustration 1 g03820396
The upper four 8T-4195 Bolts fastening the muffler bracket and main pump to the flywheel housing of the engine can be loose.Solution
Check the static torque for the four bolts. If the static torque checked on site for the four bolts does not satisfy the minimum 45 N m (33 lb ft) spec, remove the bolts. Add LOCTITE 263 glue to the four bolts and then tighten the bolts with 55 10 N m (40 7 lb ft) torque.