Inspect Flywheel Key And Keyways; Install Flywheel - Briggs & Stratton 405777 Series Manual

4. Reinstall flywheel nut. Turn nut down flush with top of
threads.
5. Install flywheel puller, Tool #19203.
6. Tighten puller screws equally until flywheel loosens,
Fig. 5.
DO NOT strike flywheel with a hard object or a
metal tool as this may cause flywheel to shatter in
operation. Always use approved flywheel removal
tools.
Inspect Flywheel Key, Keyways,
Flywheel and Crankshaft
Check flywheel key for damage. Check flywheel for cracks,
broken fins or keyway damage. Also check crankshaft
keyways and taper for damage, Fig. 6. Replace crank-
shaft, if damaged.

Install Flywheel

CLEAN flywheel and crankshaft taper removing
all oil, dirt or grease.
1. Assemble flywheel to crankshaft and align keyways.
2. Insert flywheel key into crankshaft.
3. Assemble fan and retainer to flywheel, Fig. 7.
a. Torque screws to 140 in. lbs. (16.0 Nm).
4. Install washer and flywheel nut.
5. Assemble flywheel holder, Tool #19489 to retainer,
Fig. 8, or use fllywheel holder Tool # 19433.
a. Torque flywheel nut to 150 ft. lbs. (203.0 Nm).
TSM
#19203
FLYWHEEL PULLER
FLYWHEEL NUT
Fig. 5 − Removing Flywheel
Fig. 6 − Check Flywheel And Crankshaft
Fig. 7 − Installing Flywheel And Fan
New Art
#19321
FLYWHEEL HOLDER
Fig. 8 − Torquing Flywheel Nut
CHECK
RETAINER
FAN
3