3-12. AIR BRAKE SYSTEM MAINTENANCE (CONT)
e. Air Compressor Assembly (Cont).
Block and Crankcase (Cont).
1 OF 4)
Wear heat resistant gloves
burning your hands. If you
Heat bearing (26) in
Using heat resistant
when working with heated parts to prevent
are burned by heated parts obtain medical aid
oven to 250 degrees F.
bearing (26) on crankshaft (27) so
that part number on bearing is facing
up. Make sure inner race on bearing
is firmly seated against shoulder of
crankshaft. Use hydraulic press and
2-1/2 inches inside diameter sleeve
to install bearing if necessary.
Put crankcase (30) in hydraulic press.
Install crankshaft (27) and bearing
(26), starting bearing into crankcase.
Using hydraulic press, press bearing
(26) into crankcase (30) to same depth
recorded during disassembly.
Apply non-hardening sealant to outside diameter of new seal (24).
Using hydraulic press, press new seal (24) into bearing cap (23). Use
2-1/8 inches diameter rod. Dont use too much pressure to prevent damag-
ing seal and bearing cap.
Position new gasket (25) on crankcase (30).
Install bearing cap (23) using four capscrews (22). Alternately tighten
capscrews to 120 to 160 lb-in.
Position new gasket (21) on crankcase (30).
Lubricate bore of end cover (20) with clean lubricating oil.
Install end cover (20) using four capscrews (19).