Ferris Industries 5900646 Manuale Utente

 1.  Blades should be sharp and free of nicks and 

dents. If not, sharpen blades as described in 
following steps.

 2.  Remove the deck guard.

 3.  Raise the mower deck and secure with jack 

stands.

 4.  To remove blade for sharpening, use two (2) 

15/16” wrenches to remove the nut from the top of 
the blade bolt. (Figure 17).

 5.  Use a file or hand-held grinder, sharpen blade to 

fine edge.  Remove all nicks and dents in blade 
edge.  If blade is severely damaged, it should be 
replaced.

 6.  Balance the blade as shown in Figure 18.  Center 

the blade’s hole on a nail lubricated with a drop of 
oil.  A balanced blade will remain level.

 7.  Reinstall each blade with the tabs pointing 

up toward deck as shown in Figure 19.  The 
blade spacers, blade, washer and bolt must be 
reinstalled in the exact same order in which they 
were removed.  Torque bolts to 70-90 ft.lbs. 
(94-120 N.m.).

LOOSEN

Nail

TIGHTEN

Regular Maintenance