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Simplicity 9020 PowrMax

Simplicity 9020 PowrMax tractor
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The Simplicity 9020 PowrMax is a garden tractor produced from 1975 to 1980 by Simplicity in Port Washington, Wisconsin, USA. It features a 19.5 hp Onan 816cc 2-cylinder gasoline engine, hydrostatic transmission by Sundstrand with infinite forward and reverse speeds in 3 ranges, and two-wheel drive with manual steering and disc brakes. The tractor includes independent front and rear PTOs with electric clutches, a 500 psi hydraulic system, and an open operator station. It supports various attachments including a 60" mid-mount mower deck, snowblower, blade, and front-end loaders built by Ark. The 9020 PowrMax is part of the PowrMax Series and has variants similar to Allis Chalmers 720 and Montgomery Ward Twin 20 models.
Simplicity 9020PowrMaxgarden tractorlawn tractorOnan enginehydrostatic transmission19.5 hpattachmentsmower decksnowblowerfront-end loader
Power19 hp
Founded60" deck
Model9020

Technical Specifications

Detailed specifications and technical data for Simplicity 9020 PowrMax

Power

Power:19.5 hp

Tires

Ag rear:8.00-16, 31.5-15.5
Ag front:4.00-12, 6.00-9
Lawn/turf rear:29x12.00-15
Lawn/turf front:20x8.00-10

Engine

Type:gasoline
Model:Onan CCKB
Starter:electric
Idle RPM:1300-3850
Cylinders:2-cylinder
Point gap:0.020 inches (0.508 mm)
Rated RPM:3600
Sparkplug:Champion H-8, Autolite AL5
Air cleaner:paper element
Bore/Stroke:3.25x3.00 inches (83 x 76 mm)
Displacement:816 cc (49.8 ci)
Oil capacity:4 qts (3.8 L)
Configuration:air-cooled horizontal-shaft opposed-twin
Power (gross):19.5 hp (14.5 kW)
Sparkplug gap:0.025 inches (0.635 mm)
Starter volts:12
Compression ratio:7:1
Oil change interval:100 h

Variants

720:similar Allis Chalmers model
Twin 20:similar Montgomery Ward model

Dimensions

Width:56 inches (142 cm)
Length:83 inches (210 cm)
Wheelbase:56 inches (142 cm)
Shipping weight:1300 lbs (589 kg)
Clearance (drawbar):13 inches (33 cm)
Clearance (front axle):15 inches (38 cm)
Height (steering wheel):48 inches (121 cm)

Electrical

Ground:negative
Battery AH:45
Battery volts:12
Charging amps:20
Charging volts:12
Charging system:flywheel alternator

Hydraulics

Pressure:500 psi (34.5 bar)
Total flow:2.5 gpm (9.5 lpm)

Mechanical

Drive:Two-wheel drive
Brakes:Disc brakes
Steering:Manual steering
Operator station:Open operator station

Production

Type:Garden tractor
Series:PowrMax Series
Built in:Port Washington, Wisconsin, USA
Years produced:1975 - 1980

Attachments

Mowers:48-inch rear-mounted rotary mower, 57-inch sickle bar mower, belly mower
Overview:60" mid-mount mower deck, snowblower, blade, front-end loader
60" Blade:Simplicity, front-mount, 60 inches width (152 cm), 225 lbs (102 kg), hydraulic-lift
Tillage tools:54-inch cultivator, 12-inch plow, 48-inch tiller
1690112 Loader:built by Ark, 400 lbs lift (full at pin) (181 kg), 650 lbs breakout (294 kg), 45° dump, 24.75 inches reach (dumped) (62 cm), 52 inches reach (ground) (132 cm), 8° rollback (ground line), 85 inches height (at pin) (215 cm), 66.5 inches clearance (dumped) (168 cm), Bucket width: 40 inches (101 cm), Bucket width: 48 inches (121 cm)
1690157 Loader:built by Ark, 400 lbs lift (full at pin) (181 kg), 650 lbs breakout (294 kg), 43° dump, 23.5 inches reach (dumped) (59 cm), 51.5 inches reach (ground) (130 cm), 8° rollback (ground line), 86.5 inches height (at pin) (219 cm), 69 inches clearance (dumped) (175 cm), Bucket width: 48 inches (121 cm)
60" Mower deck:mid-mount Simplicity, 3-blade with hydraulic lift, Cutting width 60 inches (152 cm), Weight 290 lbs (131 kg), Overall width 71 inches (180 cm), Cut height 1.625 to 3 inch (4 to 7 cm)
52" Snow blower:Simplicity, 52 inches width (132 cm), single-stage, front-mount, 340 lbs (154 kg)
Aircraft towing hitch:tows planes up to 25,000 pounds

Transmission

Type:hydrostatic
Gears:infinite forward and reverse (3-range)
Oil type:ATF A, ATF F, Dextron
Manufacturer:Sundstrand
Oil capacity:6 qts (5.7 L)

Tractor hitch

Rear Type:0

Power Take-off (PTO)

Rear PTO:independent
Front PTO:independent
Rear PTO Type:2000
Front PTO Type:3600
Rear PTO Clutch:electric
Front PTO Clutch:electric

Related Models

Simplicity 4041

Model:4041