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Specifications
Deck Configuration: Out front deck with a right hand
trim offset. Four individual chambers jointed for articula-
tion. One blade per chamber.
Cutting Width: 82 inches (2.1 m).
Chamber Housing: 12 GA. steel, 4.5 inch (114 mm)
deep, welded construction and reinforced with 10 GA
high strength formed plates.
Height–of–Cut (HOC): 1 inch (25 mm) to 4 inch (102
mm) by 1/4 inch (6 mm) increments.
Blade Size: Four 22 inch (559 mm) long by 2.50 inch (64
mm) wide by .25 inch (6 mm) thick heat treated steel with
formed parallel sails.
Blade Overlap: 2 inch (51 mm) in the flat configuration.
Blade Drive: Hydraulic drive via a PTO driven high effi-
ciency gear pump on the traction unit integrated hydro-
static transaxle (IHT). Four integrated spindle motors
operated in a series configuration through SAE–10
(.625) high pressure wear resistant hoses with high den-
sity polyethylene protective tubing. Spindle motor is a
high efficiency pressure balanced gear motor with a di-
rect drive to the spindle shaft operating in a constant wet
lubrication on two Teflon coated journal bearings.
Welded blade retainers mounted through a tapered joint
with a 2 inch (51 mm) high outer shield to protect spindle
seals. Hydraulic braking valve set to 600 PSI (41 Bar) to
achieve a complete blade stopping time of 5 seconds
from full engine (PTO) speed.
Blade Speed: 15,724 feet (4,793 m) per minute tip
speed (2730 rpm spindle speed) at 2795 rpm on diesel
models and 3275 on gas models.
Suspension & Castor Wheels: Five front castors and
three rear castors, consisting of 8 inch (203 mm) pneu-
matic wheels with sealed ball bearings. One rear link
suspended from the right lift arm. Hydraulic counter bal-
ance and lift system designed integral with deck for max-
imum floatation.
Anti–Scalp Features: 11 inch (279 mm) diameter anti
scalp cups located .75 inch (19 mm) below each blade.
Adjacent chambers pivot freely about two independent
60_ opposed hinges down –20_ and up +20_. 1 inch
(25 mm) diameter anti–scalp/wear skids located on
each outside chamber.
Discharge: Evenly dispersed rear discharge between
the outside width of the deck with partial recycling rear
baffles.
Lift/Transport: Stainless steel cables from outside
chambers to nearest lift arm actuated via a lever on the
lift arms. Complete deck is lifted via the traction unit lift
system.
Counter–Balance: Recommended operating counter
balance pressure of 125 PSI (9 Bar) set by an adjustable
counter balance valve on the traction unit.
Overhang/Trim: Deck is offset to the right of the traction
unit to provide overhang of 21 inch (533 mm) on the right
and 8.25 inch (210 mm) on the left with deck in a flat con-
figuration. Uncut circle is 16 inch (406 mm) on right with
no brakes.
Covers: No complete deck covers required. Hydraulic
hoses to be covered per ANSI/ISO standards.
Connect/Disconnect: Use existing GM 3000 style of
quick attach lift arm system. For ease of cleaning and
maintaining oil cleanliness, the hydraulic lines use flush
face quick couplers for pressure supply line, return line,
braking sense line, and motor case drain line.
Sound Levels: Operator ear to be 90 dBA per SAE
measuring standards.
Safety: Deck and traction unit to comply with ANSI
B71.4–1990 and CE compliance.
Productivity: Mows up to 4.6 acre (1.86 hectare) per
hour at 5.5 mph (9 km/hr)
Approach Angle: Minimum approach angle (for trailer-
ing) of 11.5 at highest HOC setting.
Weight: 745 lbs (338 Kg).
Specifications and design subject to change without notice.
Contour 82 Cutting Unit
Page 10 – 2
Groundsmaster 3000/3000–D