Progressive Turf Equipment TDR-X Operator's Manual & Parts List page 42

TDR-X Operator's Manual
Pro-EZII Replaceable Blade Tips
The Pro-EZII change blade tips are serviceable with a single wrench. An
anti-rotation slot engaging the blade bolt to the blade bar allows for
installation and removal of the nut from one side without having to hold the
bolt.
When removing blade tips, inspect the tips and blade bolts for wear and
damage.
Replace any tip that is bent, nicked deeper than ¼", excessively worn or
has any other damage. Small nicks can be ground out during
sharpening. Always balance Pro-EZII blades as an assembled unit.
Replace both tips at the same time on one holder.
Replace any blade bolts that have the head or blade shank worn beyond
the limits shown in the accompanying illustrations.
Always install new blade bolts, lock washers and nuts when installing
new blade tips. Tighten bolts to 85 ft-lbsError! Bookmark not defined..
DO NOT OPERATE WITH ONLY ONE BLADE TIP INSTALLED.
Grass build-up between the tip and blade bar may prevent the tip from
pivoting properly at start-up or during mowing. Ensure all tips are free to
rotate prior to operation.
BLADE SHARPENING
Use gloves when handling mower blades. Blades can be very sharp.
IMPORTANT! When sharpening blades, be sure material removed is equal
on both sides of the blade. Unbalanced blades will cause excessive vibration
leading to cracks in machine components.
•
Clean all material from the blade prior to sharpening and balancing.
•
Grind or file blades following original pattern as shown.
•
Sharpen to a razor edge. Do not sharpen back side of blade.
Use the supplied cone balancer to verify blade balance. When the blade is
correctly balanced, the blade will remain horizontal on the cone balancer as
show in Figure 16.
Failure to properly balance blades after sharpening can cause vibration
leading to premature component damage.
Wear appropriate eye and face protection when sharpening blades.
40
0.12 IN
MINIMUM
Bolt Head Wear Limit
0.03 IN
MAXIMUM
Bolt Shank Wear Limit
Figure 15 – Grind Pattern
Figure 16