Hydrostatic Ground Drive System; Cutting Deck - Exmark PIONEER S SERIES Operator's Manual

– Steering is controlled by varying the position
of the levers relative to each other.
– Moving motion control levers outward (in
slots) locks the drive system in neutral.
• PTO Engagement Switch: Engages electric clutch
(to drive belt) which engages mower blades.
• Parking Brake Lever: Engages parking brake.
• Deck Height Adjustment Lever: Sets cutting
height to desired position.
• Deck Lift Pedal: Foot pedal that lifts deck.
• Transport Lock: Latching position: Automatically
latches at the transport position.
Seat
• Seat Type:
– Models not ending in "A3" and "A4":
Standard seat with foam padded seat cushion
with armrests and integral safety switch.
Optional seat accessory for units with
standard seats: Suspension seat (adjustable
spring suspension), armrests, and integral
safety switch. Adds approximately 1/2 inches
(12.7 mm) to seat height.
– Models ending in "A3" and "A4":
Suspension seat (adjustable spring suspension),
armrests, and integral safety switch. Adds
approximately 1/2 inches (12.7 mm) to seat
height.
• Mounting: Hinged seat frame to tilt up seat. Held
in tilted position with cable. Adjustable fore and
aft on seat tracks.
• Armrests: Molded flip-up armrests.
• Seat Safety Switch:
Integrated seat switch. Time delay seat switch
eliminates rough ground cut-outs.

Hydrostatic Ground Drive System

• Two unitized hydrostatic transmissions:
– Units with 48 or 52 inch decks:
Hydro Gear ZT3100
– Units with 60 inch deck:
Hydro Gear ZT3400
• Hydraulic Oil Type: Exmark Premium Hydro Oil.
• Hydraulic Oil Capacity: 77 oz (2.3 L) per side
• Hydraulic Filter: P/N 109-3321
• Speeds:
– Forward:
◊ Units with 48 or 52 inch decks:
0-8 mph (12.9 km/hr) forward.
◊ Units with 60 inch deck:
0-9 mph (14.5 km/hr) forward.
– Reverse:
◊ Units with 48 or 52 inch decks:
0-5 mph (8.0 km/hr) reverse.
◊ Units with 60 inch deck:
0-6 mph (9.7 km/hr) reverse.
• Drive wheel release valves allow machine to be
moved when engine is not running.
Tires & Wheels
Deck Size
Quantity 2
Tread Super Turf
Size 22 x 9.50-12
4
Ply Rating
Pressure
13 psi (90 kPa)
Deck Size All Units Except
Models Ending
Quantity 2
Tread Smooth
Size 13 x 5.00-6
Ply Rating 4
Pressure 13 psi (90 kPa)

Cutting Deck

• Cutting Width:
– 48 inch Deck: (121.9 cm)
– 52 inch Deck: (132.1 cm)
– 60 inch Deck: (152.4 cm)
17
Specifications
Drive
Pneumatic (Air filled)
48 & 52 60
2
Super Turf
23 x 10.50-12
4
13 psi (90 kPa)
Front Caster
Pneumatic (Air filled)
Models Ending
in "A3"
in "A3"
2
Smooth
13 x 6.50-6
4
13 psi (90 kPa)