Service Manual

Groundsmaster 4500--D/4700--DCutting Units (Rev. B)
Page 8 -- 2
Specifications
MOUNTING: All cutting units are supported by indepen-
dent lift arms and are interchangeable to any cutting unit
positions. The Groundsmaster 4700--D (shown above)
uses 7 cutting units. The Groundsmaster 4500--D uses
5 cutting units.
CONSTRUCTION: Deck chamber is welded 7, 10, and
12 gauge steel. Deck frame is welded 1--1/2 inch square
tubing with 7 gauge side supports.
HEIGHT--OF--CUT RANGE: 3/4 to 4 inch (1.91 to 10.16
cm) in 1/4 inch (.64 cm) increments. Height--of--cut ad-
justment is made by repositioning deck on deck frame.
DECK DRIVE: Closed loop, integrated relief, hydraulic
system operates cutting deck hydraulic motors. Blade
spindles are 1--1/4 inch (31.7 mm) shafts supported by
greaseable, tapered roller bearings.
CUTTING BLADE: Each cutting unit equipped with 27
inch (68.6 cm) length, .250 inch (6 mm) thick, heat
treated, steel blade. Anti--scalp cup installed on cutting
blade. The standard blade is optimized for most cutting
applications. Optional high lift, angle sail, and Atomic
blades are available for those situations where the stan-
dard blade is not ideal.
DISCHARGE: Clippings are discharged from the rear of
the mowing decks. Pre--drilled mounting holes allow at-
tachment of optional mulching baffle.
CUTTING UNIT LIFT: Cutting units on the Ground-
smaster 4500--D are controlled with one lift lever. The
Groundsmaster 4700--D uses three lift levers: one for
the right wing deck, one for the left wing deck, and the
third (center) lever for the remaining five decks.
SUSPENSION SYSTEM: A fully floating suspension
with hydraulic counterbalance. Main center pivot allows
side--to--side deck oscillation. Individual decks sup-
ported with two front rollers and one, full width, rear roll-
er.
WEIGHT: Complete cutting unit weighs 190 lb (86 kg).