GASKET 1M9634 - Caterpillar

A general visual inspection should be made to the air inlet and exhaust system. Make sure that there are no signs of leaks in the system.
Table 1
Required Tools
Part Number Part Name Quantity
1U-5470
or
198-4240 Engine Pressure Group
or
Digital Pressure Indicator 1
Illustration 1 g00295554
1U-5470 Engine Pressure Group
Air Inlet Restriction
There will be a reduction in the performance of the engine if there is a restriction in the air inlet system.
Illustration 2 g02148248
Right side view of the engine
(1) Air filter restriction indicator
(2) Air cleaner cover assembly
In order to check for a plugged air filter, observe air filter restriction indicator (1). Refer to Illustration 2. Replace the filter if the air filter restriction indicator indicates that the restriction pressure is above the specified limit. Refer to the Operation and Maintenance Manual.
Illustration 3 g02148273
Illustration 4 g02148337
(3) Hoses
(4) Air cleaner cover assembly
(5) Tube
(6) Turbocharger
Inspect the engine air cleaner inlet, tubes (5), and hoses (3) in order to ensure that the passageway is not blocked or collapsed. Refer to Illustration 3 and Illustration 4.
Check for dirt contamination on the clean side of the engine air cleaner element. If any dirt contamination is observed, contaminants are flowing past the engine air cleaner element and/or the seal for the engine air cleaner element.