Bush Hog 12 Rotary Cutter FAQs, Specs, Maintenance & Installation Tips
Get the essential maintenance intervals, grease points, fluid specs, safety practices, and operational guidance for the Bush Hog 12 Rotary Cutter. Keep your cutter running efficiently and extend its service life with these routine checks and expert tips.
12 Rotary Cutter Fluid Specifications & Capacities
| Fluid | Specification | Capacity (qt) | Capacity (gal) |
|---|---|---|---|
| Gearbox Oil | SAE 90 EP gear oil | Refer to fill site | Refer to fill site |
12 Rotary Cutter Complete Maintenance Schedule
| Service Item | Action | Interval | Part Number | Notes |
|---|---|---|---|---|
| Gearbox Oil Level | Check oil level in gearbox; add SAE 90 EP gear oil if needed | Every 8 hr | ||
| Blade Holder Nut | Check torque | Every 8 hr | Torque to 600 ft-lbs | |
| Blade Bolts | Check torque | Every 8 hr | Torque to 450 ft-lbs | |
| Blade Condition | Inspect/Replace | Every 8 hr | 64707 | Replace if damaged or excessively worn |
| Driveline U-joints | Lubricate | Every 8 hr | Apply No. 2 lithium grease | |
| Driveline Guard Bearings | Lubricate | Every 8 hr | Apply No. 2 lithium grease | |
| Driveline U-joints | Lubricate | Every 8 hr | 4 grease fittings | |
| Driveline Guard Bearings | Lubricate | Every 8 hr | 2 grease fittings | |
| Blade Carrier | Inspect for cracks, bends, damage | Every 8 hr | ||
| Driveline Shields | Inspect for damage or missing parts | Every 8 hr | ||
| Tailwheel Hub | Lubricate | Every 50 hr | Apply No. 2 lithium grease (1 fitting) | |
| Tailwheel Fork | Lubricate | Every 50 hr | Apply No. 2 lithium grease (1 fitting) | |
| Gearbox Oil | Change | Every 500 hr | Drain and refill with SAE 90 EP gear oil |
12 Rotary Cutter Operating Specifications
| Specification | Value |
|---|---|
| Working Width | 12 ft |
| Tractor PTO Requirements | 35-75 HP @ 540 rpm |
| Weight | 1700 lbs |
| Blades | 2 |
| Blade Bolt Torque | 450 ft-lbs |
| Blade Holder Nut Torque | 600 ft-lbs |
12 Rotary Cutter Operating Warnings
| System | Indicator | Required Action |
|---|---|---|
| Blade Contact | Bystanders within 300 feet | Keep bystanders at least 300 feet away during operation |
12 Rotary Cutter Seasonal Storage Procedures
- Clean all debris from unit
- Lubricate all grease fittings
- Touch up paint on bare metal to prevent rust
- Store in dry location
Quick Jump
Tap a topic to jump to the answer.
- How often should I check the gearbox oil on the Bush Hog 12 Rotary Cutter?
- What type of oil should be used in the gearbox?
- How do I check the blade bolts for tightness?
- How frequently should I lubricate the PTO shaft?
- What type of grease should be used for lubrication points?
- How often should I inspect the blades for wear or damage?
- What is the recommended procedure for storing the Bush Hog 12 Rotary Cutter at the end of the season?
- How do I troubleshoot excessive vibration during operation?
- What safety precautions should be taken during operation?
- How do I check the blade carrier for damage?
- What should I do if the gearbox is overheating?
- How do I check for proper PTO driveline alignment?
- How often should I inspect the driveline shields?
- What should I do if the cutter is not cutting evenly?
- How do I transport the Bush Hog 12 Rotary Cutter safely?
- What should I do if the cutter is leaving uncut strips?
How often should I check the gearbox oil on the Bush Hog 12 Rotary Cutter?
Answer: Check the gearbox oil every 8 hours of operation.
What type of oil should be used in the gearbox?
Answer: Use SAE 90 EP gear oil in the gearbox.
How do I check the blade bolts for tightness?
Answer: Inspect blade bolts for tightness every 8 hours of operation.
How frequently should I lubricate the PTO shaft?
Answer: Lubricate the PTO shaft every 8 hours of operation.
What type of grease should be used for lubrication points?
Answer: Use a good quality multi-purpose lithium base grease.
How often should I inspect the blades for wear or damage?
Answer: Inspect the blades for wear or damage every 8 hours of operation.
What is the recommended procedure for storing the Bush Hog 12 Rotary Cutter at the end of the season?
Answer: Clean all debris from the unit, lubricate all grease fittings, touch up paint on bare metal to prevent rust, and store in a dry location.
How do I troubleshoot excessive vibration during operation?
Answer: Check for loose or damaged blades, unbalanced blades, or debris caught in the cutter. Inspect and tighten all hardware as needed.
What safety precautions should be taken during operation?
Answer: Keep bystanders at least 300 feet away during operation and never allow anyone near the machine while it is running.
How do I check the blade carrier for damage?
Answer: Inspect the blade carrier for cracks, bends, or other damage every 8 hours of operation.
What should I do if the gearbox is overheating?
Answer: Stop operation, allow the gearbox to cool, check oil level, and inspect for proper lubrication. If overheating persists, contact your dealer.
How do I check for proper PTO driveline alignment?
Answer: Ensure the PTO shaft is straight and properly connected to both the tractor and the cutter before operation.
How often should I inspect the driveline shields?
Answer: Inspect the driveline shields for damage or missing parts every 8 hours of operation.
What should I do if the cutter is not cutting evenly?
Answer: Check for dull or damaged blades, improper cutting height, or uneven ground. Correct as necessary.
How do I transport the Bush Hog 12 Rotary Cutter safely?
Answer: Raise the cutter to transport position, ensure all safety locks are engaged, and travel at a safe speed.
What should I do if the cutter is leaving uncut strips?
Answer: Inspect the blades for wear or damage, check for proper overlap, and ensure the cutter is level side-to-side.