Ariens 475 Lawn Mower User Manual


 
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6.1 BLADE BRAKE/CLUTCH REMOVAL
Remove mower blade.
Squeeze brake/clutch bail against handlebar and insert
cotter pin into open hole of actuating rod.
Remove 3/8-24x2-1/2" cap screw that retains brake,
blade, clutch (BBC) leaf spring and leaf spring from
shaft.
Remove BBC flywheel by securing flywheel with BBC
wrench (P/N 000239). Remove flywheel and cotter pin
securing actuator rod to brake actuator.
Remove three nuts and remove brake actuator from
unit.
Inspect parts for wear and or damage, replace as
necessary. Assemble in reverse order.
NOTE:
When attaching actuator rod to brake actuator,
brake actuator is to be rotated all the way up so proper
hole is aligned.
On models with key, position key in crankshaft. Slide
flywheel onto crankshaft and BBC leaf spring onto
flywheel stub shaft.
IMPORTANT:
Install 3/8-24x2-1/2" Gr. 5 cap screw and
lockwasher to secure. Torque to 30 ft-lbs (40.6 Nm)
using BBC wrench to hold leaf spring and flywheel.
Secure mower blade with two 3/8-24x1-1/4" Gr. 5 cap
screws with lockwashers, torque to 25-30 ft-lbs
(33.8-40.6 Nm).
Check idler for free rotation of pulley and movement of
pivot.
Replace drive belt in reverse order being sure that belt
seats in pulley grooves with idler positioned on back
(flat) side of belt.
SECTION 6 - MOWER DECK
Figure 18
1. Drive Belt
2. Drive Disk
3. Ball Bearing
4. Washer
5. Spindle
6. Bearing Retainer
7. Center Baffle
8. Traction Drive Pulley
9. Blade Adapter
1
2
3
4
5
6
7
8
9
3
Brake Engaged
Blade Engaged
Figure 19