Economy Disc Mowers

New Holland: Agriculture

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  • OVERRUNNING CLUTCH IS STANDARD: The 540-rpm PTO driveline with overrunning clutch protects the driveline and makes hook-up easy.
  • CLEAN, HIGH SPEED CUTTING: Slice through thick crops, even gopher mounds, at high speed with the HM Series disc mowers. Depending on the model, four, five or six low-profile, oval cutting discs use two knives per disc to slice through the wet grasses. Knives, made of high-quality steel, are reversible for twice the cutting life.
  • SIMPLE TRANSPORT: A transport lock makes it easy to move from field to field.
  • EASY OPERATION: The simple design of HM Series disc mowers make them easy to use. A single-acting hydraulic cylinder makes it easy to lift the cutterbar at the end of each pass. Right-side swath divider wheel separates each cut path.
  • EASY HOOKUP: The three-point-hitch mounting, two adjustable parking stands and a storage support for the PTO shaft make it easy to attach and remove HM Series mowers.
  • ENCLOSED GEAR-DRIVEN CUTTERBAR: The enclosed gear-driven cutterbar provides years of reliable service. Discs are retained with six bolts for easier service.
  • PROTECTION AGAINST FIELD DAMAGE: Several important HM Series features fend off foreign objects and keep you moving through the field: • Rock guards and skid shoes protect the discs and carry the cutterbar over uneven ground. • A spring-loaded breakaway latch protects the cutterbar by allowing the mower to pivot back the instant it encounters an obstacle. • An adjustable flotation spring allows you to change cutterbar ground pressure.

Cutter Bar

  HM234 Economy HM235 Economy HM236 Economy
Cutting width ft. in. (mm) 5' 6" (1676) 6' 9" (2057) 7' 11" (2413)
Cutting height in. (mm) 0.63-2.36 (16-60) 0.63-2.36 (16-60) 0.63-2.36 (16-60)
Cutter bar tilt angle degrees 0 to -8 1 to -8 2 to -8
Cutter bar operating range degrees +18 to -30 +18 to -30 +18 to -30
Breakaway angle degrees 21 21 21
Type cutterbar Enclosed gear drive Enclosed gear drive Enclosed gear drive
Number of discs 4 5 6
Knives per disc 2 2 2
Disc cutting diameter in. (mm) 20.47 (520) 20.47 (520) 20.47 (520)
Disc drive Spur gear drive in common sump Spur gear drive in common sump Spur gear drive in common sump
Disc speed RPM 3,154 3,154 3,154
Cutter bar gear protection No No No
Swath width, approx standard** in. (mm) 50 (1270) includes std. RH swath wheel 65 (1651) includes std. RH swath wheel 79 (2007) includes std. RH swath wheel
Swath width with optional swath wheel** in. (m) 38 (965) w/LH swath wheel 53 (1346) w/LH swath wheel 67 (1702) w/LH swath wheel

Dimensions and Weight

  HM234 Economy HM235 Economy HM236 Economy
Overall width in. (mm) 134.25 (3410) 149.21 (3790) 178.35 (4530)
Overall length in. (mm) 54.33 (1380) 54.33 (1380) 54.33 (1380)
Height - transport position* in. (mm) 92.52 (2350) 107.48 (2730) 122.44 (3110)
Weight, shipping lb. (kg) 933 (423) 1016 (461) 1215 (551)
Weight, operating lb. (kg) 822 (373) 906 (411) 1077 (489)
Maximum transport speed NA NA NA
Tires/wheels NA NA NA

Driveline

  HM234 Economy HM235 Economy HM236 Economy
Minimum PTO horsepower required hp (kW) 35 (26.1) 40 (29.8) 50 (37.3)
Input speed RPM 540 540 540
PTO shaft spline/size required 6-spline/ 1 3/8" 6-spline/ 1 3/8" 6-spline/ 1 3/8"
Driveline protection Belt drive to cutter bar Belt drive to cutter bar Belt drive to cutter bar
Overrunning clutch Standard Standard Standard
Belt tension Adjustable drawbolt Adjustable drawbolt Adjustable drawbolt

Hydraulics and Hitch

  HM234 Economy HM235 Economy HM236 Economy
Hydraulic circuits required One remote One remote One remote
Minimum relief pressure required psi (bar) 2,320 (160) 2,320 (160) 2,320 (160)
Hitch Category I or II Category I or II Category II

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