Progressive Turf Equipment TDR-30 Operator's Manual And Parts List page 49

Blade Tip
The Pro-EZ 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-EZ blades as an
assembled unit.
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 proper torque as listed on
Page 44. 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.
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 (pn 209000) to verify blade
balance. When the blade is correctly balanced, the blade will
remain horizontal.
Failure to properly balance blades after sharpening can cause
vibration leading to premature component damage.
Change blades must be balanced as a complete assembly
(blade bar, blade tips & blade tip hardware).
Wear appropriate eye and face protection when sharpening
blades.
TDR-30 Operator's Manual
0.12 IN
MINIMUM
Bolt Head Wear Limit
0.03 IN
MAXIMUM
Bolt Shank Wear Limit
Pro-EZ
209000 Balancer
47