3408 & 3412 NATURAL GAS ENGINE ATTACHMENTS Caterpillar

NOTE: After clutch has been installed on engine, hit output shaft sharply on the end to relieve any preload that may result due to resistance of pilot bearing being pressed into the flywheel.

(1) Bearing Adjustment:

Tighten bearing retainer until there is no clearance between cup and cone. Back off retainer 2 or 3 notches and assemble lock. Strike output end of shaft to seat the inner bearing cup against the bearing retainer. End play must be ... 0.15 to 0.25 mm (.006 to .010 in.)

Clutch Engagement Check (On Engine):

A torque of 295 to 392 N·m (214 to 291 lb.ft.) on the splined clutch lever shaft is required to engage the clutch.