Tar River ERC Series Operator's Manual page 18

ERC Round Back Rotary Cutter
Warning: To avoid injury when changing blades, always wear Personal
Blade inspection/replacement (Fig. 5)
1. Remove the access cap from the gearbox mount plate, to access the blade nuts. Rotate the blades so that
the blade bolt nut lines up with the access hole.
2. Block the blade to prevent it from moving. Using a pull bar, ratchet or impact wrench, remove the blade
nut and blade from the implement.
3. Inspect the condition of the blades and blade hardware.
4. Replace the blades if worn, dull, damaged or distorted. A worn or damaged blade will give a less than
optimal cut and can cause excessive vibration. Replace bolts if damaged or worn.
5. Install new OEM blades, OEM bolts and torque to proper torque specifications. Make sure the blades
swing freely to prevent damage to the rotary cutter.
6. It is important that the blade's cutting edge faces the direction of rotation. Note that the rotary cutter
blades rotate in a clockwise direction as viewed from underneath the cutter.
7. Replace the access cap and any parts or shields removed.
Important:
Blade bolts should be checked for proper torque every 8 hours. Replace with only OEM bolts. These bolts
•
are special made for this rotary cutter.
Replace with OEM blades in pairs to ensure proper balance. Unbalanced blades can cause excessive
•
vibration and possible damage to the rotary cutter.
Maintenance/Service
Protective Equipment, gloves, eye protection, etc.
Access to blade bolt nuts. Cap removed.
Note: Some parts/shield removed for clarity. Always
replace any parts/shields removed before operating the
rotary cutter. Serious injury or death can occur.
Fig. 5
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