Bush Hog 109 Rotary Cutter OEM Parts
Bush Hog 109 Rotary Cutter Parts: Diagrams, Assemblies & Components
Bush Hog 109 Rotary Cutter FAQs, Specs, Maintenance & Installation Tips
Get the essential information you need to maintain and operate your Bush Hog 109 Rotary Cutter. Below you'll find maintenance schedules, fluid capacities, common troubleshooting advice, and operating recommendations to keep your machine cutting efficiently and safely.
109 Rotary Cutter Fluid Specifications & Capacities
| Fluid | Specification | Capacity (qt) | Capacity (gal) |
|---|---|---|---|
| Gearbox Oil | SAE 90 EP gear oil | N/A | N/A |
109 Rotary Cutter Complete Maintenance Schedule
| Service Item | Action | Interval | Part Number | Notes |
|---|---|---|---|---|
| Gearbox Oil Level | Check oil level. Add oil if necessary. | Every 8 hr | Check at start of each day’s use. | |
| Blade Holder Nut | Check torque | Every 8 hr | ||
| Blade Bolt Torque | Check torque | Every 8 hr | ||
| Driveline U-joints | Lubricate with No. 2 lithium grease | Every 8 hr | 2 grease fittings | |
| Driveline Guard Bearings | Lubricate with No. 2 lithium grease | Every 8 hr | 2 grease fittings | |
| Tailwheel Pivot | Lubricate with No. 2 lithium grease | Every 8 hr | 1 grease fitting | |
| Check Blades | Inspect for damage or excessive wear | Every 8 hr | Replace if bent, cracked, or excessively worn | |
| Tailwheel Hub | Lubricate with No. 2 lithium grease | Every 50 hr | 1 grease fitting | |
| Gearbox Oil | Change oil | First 100 hr, then every 500 hr or annually | Use SAE 90 EP gear oil |
109 Rotary Cutter Operating Specifications
| Specification | Value |
|---|---|
| Working Width | 4 ft |
| Blades | 2 |
| PTO Requirement | 540 rpm, 25–40 HP tractor |
109 Rotary Cutter Operating Warnings
| System | Indicator | Required Action |
|---|---|---|
| Blade Contact | Bystanders within 300 ft | Keep bystanders at least 300 feet away during operation |
109 Rotary Cutter Seasonal Storage
- 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 109 Rotary Cutter?
- What type of oil should be used in the gearbox?
- How often should I lubricate the driveline and U-joints?
- What type of grease should be used for lubrication points?
- How often should I inspect the blades for wear or damage?
- What should I do if the blades become dull or damaged?
- How do I store the Bush Hog 109 Rotary Cutter for the off-season?
- What should I do if the PTO shaft vibrates excessively?
- How often should I check all hardware for tightness?
- What safety precautions should be taken during operation?
- How do I troubleshoot poor cutting performance?
- What should I do if oil is leaking from the gearbox?
- How do I transport the Bush Hog 109 Rotary Cutter safely?
- Where can I find replacement parts for the Bush Hog 109 Rotary Cutter?
How often should I check the gearbox oil on the Bush Hog 109 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 often should I lubricate the driveline and U-joints?
Answer: Lubricate the driveline and U-joints every 8 hours of operation.
What type of grease should be used for lubrication points?
Answer: Use a good quality multi-purpose lithium-based grease.
How often should I inspect the blades for wear or damage?
Answer: Inspect the blades every 8 hours of operation.
What should I do if the blades become dull or damaged?
Answer: Sharpen or replace the blades as needed. Always replace both blades at the same time.
How do I store the Bush Hog 109 Rotary Cutter for the off-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.
What should I do if the PTO shaft vibrates excessively?
Answer: Stop operation and inspect the driveline for damage, bent components, or improper assembly.
How often should I check all hardware for tightness?
Answer: Check all hardware for tightness every 8 hours of operation.
What safety precautions should be taken during operation?
Answer: Keep bystanders at least 300 feet away during operation and always operate with all shields and guards in place.
How do I troubleshoot poor cutting performance?
Answer: Check for dull or damaged blades, low PTO speed, or excessive ground speed.
What should I do if oil is leaking from the gearbox?
Answer: Stop operation and repair or replace the gearbox seal as needed.
How do I transport the Bush Hog 109 Rotary Cutter safely?
Answer: Raise the cutter to transport position, secure with locking devices, and use proper lighting and marking for road travel.
Where can I find replacement parts for the Bush Hog 109 Rotary Cutter?
Answer: Contact your authorized Bush Hog dealer for replacement parts.