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SPECIFICATIONS
Model Number 991152 991154 991156
Description ZT HD 48 ZT HD 52 ZT HD 60
Engine Kohler 7000 Pro
Engine Displacement – cm
3
(in
3
)
725.0 (44.2)
Maximum RPM – No Load 3600 ± 75
Oil Capacity Refer to engine manual.
Liquid or Air Cooled Air
Transmission
Type Hydro-Gear ZT3100
Oil
15W-50 synthetic motor oil (Gravely p/n 00057100) or
equivalent
Hydraulic Oil Filter Yes
Drive
Forward Maximum – km/h (mph) 12.9 (8)
Reverse Maximum – km/h (mph) 6.4 (4)
Turning Radius Zero
Brakes Parking
Electrical
Starter Electric
Battery 12 Volt 12A-190 CCA (U1 Replaceable)
PTO (Power Take-off) Electric PTO Clutch / Brake
Fuel
Fuel Tank Capacity – Liter (gal) 19.3 (5.1)
Type See Engine Manual
Size and Weight
Length – cm (in) 200.7 (79)
Width – cm (in) 160 (63) 170.2 (67) 190.5 (75)
Height – cm (in) 119.4 (47)
Weight – kg (lbs) 374.2 (825) 385.6 (850) 394.6 (870)
Tires
Front Tire Size – in 13 x 6.5-6
Rear Tire Size – in 22 x 10-12 22 x 10.5-12 22 x 12-12
Recommended Front Tire Pressure –
kPa (psi)
137.9 – 172.4 (20 – 25)
Recommended Rear Tire Pressure –
kPa (psi)
103.4 – 124.1 (15 – 18)
Mower Deck
Cutting Height – cm (in) 3.8 – 12.7 (1.5 – 5.0)
Cutting Height Increments 0.635 (0.25)
Cutting Width – cm (in) 121.9 (48) 132.1 (52) 152.4 (60)
Mower Deck Lift Mechanical Pin Lock
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