Honda HSM1590i Manuel De L'utilisateur page 82

Auger/Blower
Check the auger, auger housing, blower, and lock bolts for signs of
damage or other faults. If any of the lock bolts is broken, replace them
with the one furnished with the snowblower. Additional lock bolts and
nuts are available from authorized Honda snowblower dealers.
Lock bolts are designed to break under force that would otherwise
damage auger and blower parts. Do not replace lock bolts with
ordinary hardware bolts.
Lock bolt replacement procedure
1. Place the snowblower on a firm, level surface.
2. Make sure the auger clutch switch is in the OFF position.
3. Release the drive clutch lever.
4. Level and lower the auger to the lowest position with the auger
housing control switch.
5. Turn the engine switch OFF, remove the engine switch key, and be
sure that each rotating part comes to a complete stop.
6. Clean the auger and blower of snow, ice, or any other foreign
particles.
7. Check the entire snow clearing mechanism.
8. Replace any broken lock bolts. Tighten securely.
8 mm SELF LOCK NUT
AUGER LOCK BOLT
8 mm SELF LOCK NUTS
BLOWER LOCK BOLT
AUGER LOCK BOLT
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