HORN AS 7Y3920 - Caterpillar

Illustration 1 g00777391
Typical example of turbocharger with a wastegate
Illustration 2 g00777400
Typical example of turbocharger without a wastegate (1) StudApply 5P-3931 Anti-Seize Compound to the studs.The 136-0610 Turbocharger and the 136-0611 Turbocharger are secured to the exhaust manifold with the 3E-8017 Locknut. Tighten the 3E-8017 Locknut to the following torque. ... 54 5 N m (40 4 lb ft)Note: The 3E-8017 Locknut has a special thread form that is identifiable from a standard thread. This thread form is called a Spiralock thread.The 199-6064 Turbocharger is secured to the exhaust manifold with the 9X-6620 Locknut. Tighten the 9X-6620 Locknut to the following torque. ... 70 5 N m (50 4 lb ft)Note: The 9X-6620 Locknut is a locknut with a standard thread form. (2) Exhaust inlet (3) Exhaust outlet (4) Air inlet (5) Waste gateOpening pressure of the wastegate ... 148 3 kPa (22 1 psi)End play for a new shaft ... .102 0.025 mm (.0040 .0010 inch)Maximum permissible end play for a worn shaft ... 0.20 mm (.008 inch)Use the following procedure to install the band clamps to hold the cartridge to the compressor housing:
Tighten the clamps to a torque of 14.0 1.1 N m (10.32 0.81 lb ft).
Tap lightly around the circumference of the clamp.
Tighten the clamps again. Tighten the clamps to a torque of 14.0 1.1 N m (10.32 0.81 lb ft).Note: Put clean engine oil in the oil inlet of the turbocharger after assembly or before installation. This will provide lubrication during start-up and during storage.