JEFF PITTMAN / UNITED STATES & CANADAFind your oilContact JeffTrack your orderAMSOIL Dealer #30734402
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FARM EQUIPMENT

Rotary cutter (brush hog) fluids and lubricants.

Gearbox oil, PTO driveline grease, and slip clutch care for 3-point and pull-type rotary cutters and brush hogs.

Questions: [email protected] · Every AMSOIL link on this page carries dealer #30734402.

Rotary cutter (brush hog) fluids to compare

Slip clutches rust in storage

A friction slip clutch can seize after a winter outside. Follow the maker’s procedure for loosening and resetting it before the first cut.

Clear wrapped wire

Wire and vines wrapped around the output shaft cut seals; clear them and recheck the gearbox level.

Fluids by compartment.

Confirm the fluid type, grade, and specifications in the rotary cutter (brush hog) maker’s manual before ordering. These examples are not a fitment result for a specific machine.

Gearbox

Cutter gearboxes list a gear oil, often an 80W-90 or 85W-140 EP grade; a few use a semi-fluid grease. Check the maker’s spec and fill to the level plug.

PTO driveline

Grease the crosses, telescoping tubes, and shield bearings at the hour interval on the driveline decal.

Tailwheel, hubs, and deck pivots

Grease tailwheel spindles, hubs, and pivots as charted.

ORDER THROUGH INDEPENDENT AMSOIL DEALER #30734402

Ready to order, or have a question first?

Shop AMSOIL directly with Jeff’s dealer number already attached, or open a business account. AMSOIL handles pricing, checkout, and shipping. If you contact AMSOIL another way, give them dealer number 30734402.

Prefer to talk it through? Email Jeff at [email protected] with your equipment, the fluid now in use, and your approximate volume.

Frequently asked questions

What oil goes in a brush hog gearbox?

The gear oil the cutter maker lists, commonly an 80W-90 EP gear oil.

How often should a rotary cutter driveline be greased?

Every 8 hours is common; follow the decal and manual.

General maintenance information. Always follow the equipment maker’s requirements and the current product data. Product availability, pricing, and account terms are set by AMSOIL.

Industries that use this equipment

More farm equipment

BASED IN NEWPORT. SERVING U.S. & CANADIAN CUSTOMERS.

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