Cutting Decks - Toro Groundsmaster 5900 Series Service Manual

Cutting Decks

Specifications and Maintenance: Specifications
MOUNTING: Cutting decks are supported by lift arms controlled with hydraulic lift
cylinders.
CONSTRUCTION: Deck chambers are welded steel construction reinforced with channels
and plates.
HEIGHT−OF−CUT 25.4 mm to 152 mm (1 to 6 in) in 12.7 mm (1/2 in) increments. Center
RANGE: deck height−of−cut adjustment is achieved by changing spacers on
castor wheels and re−positioning the castor wheel axles in the castor
forks. Wing deck adjustment is achieved by changing spacers on
castor wheels and re−positioning the castor wheel axles in the castor
forks.
CUTTING DECK Cutting deck rake or pitch is the difference in height−of−cut from the
PITCH: front of the blade tip to the back of the blade tip. Use a cutting deck
rake of 6.3 to 9.6 mm (0.25 to 0.38 in). A cutting deck pitch larger
than 9.6 mm (0.38 in) results in less power required, larger clippings,
and a poorer quality of cut. A cutting deck pitch less than 7.9 mm
(0.31 in) results in more power required, smaller clippings, and a
better quality of cut.
DECK DRIVE: The closed loop hydraulic system operates hydraulic motor on each
cutting deck. The motor drives one spindle directly with remaining deck
spindle(s) driven by B section kevlar v−belt(s). Blade spindles are 31.7
mm (1.250 in) shafts supported by greaseable, tapered roller bearings.
CUTTING BLADE: Cutting blade dimensions are 508 mm (20 in) long, 64 mm (2.500 in)
wide and 6.4 mm (0.250 in) thick. Anti−scalp cup installed on each
cutting blade. Center deck includes five blades and each wing deck
includes three blades.
WIDTH OF CUT: Front deck provides 2337 mm (92 in) width of cut. Each side deck has
1448 mm (57 in) width of cut. Total width of cut is 4877 mm (192 in).
DISCHARGE: Clippings are discharged from the rear of the cutting decks.
SUSPENSION A fully floating deck suspension with hydraulic counterbalance. Front
SYSTEM: deck suspended from lift arms and has two castor wheels, two
adjustable side skid/bumpers and a front adjustable anti−scalp roller.
Wing decks suspended from lift arms and have four castor wheels, two
adjustable inner skids and two adjustable side skid/bumpers.
PNEUMATIC All cutting deck castors come with 25.4 cm (10 inch) pneumatic tires
CASTOR WHEELS: standard. Recommended castor wheel tire pressure is 345 kPa (50
psi).
Page 2–6 Groundsmaster ® 5900 & 5910
16227SL Rev B