4-4. BLOWER ASSEMBLY REPLACEMENT (CONT).
Remove nut (14), lockwasher (15) and
screw (16) from flywheel housing cover (17).
Remove three screws (18) and
lockwashers (19) from flywheel housing
cover (17). Discard lockwashers.
Remove two screws (20), flywheel housing
cover (17) and gasket (21) from blower drive
support (4). Discard gasket.
Use care when removing retaining rings. Retaining rings are under tension and can act as
projectiles when released causing injury to personnel.
Blower lobes turn freely. Ensure fingers, jewelry, and hair are kept clear of rotors in
blower. Failure to comply may result in severe injury to personnel.
Wrap wiping rags around driveshaft
Install alignment tool and remove and
discard retaining ring (23) from driveshaft
Use extreme caution when
handling driveshaft. Driveshaft
can be easily scratched if not
carefully handled. Failure to
comply may result in damage to
Driveshaft is pulled out only far
enough to clear blower.
Slowly pull driveshaft (24) out from
blower (5) until driveshaft turns freely.