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ALWAYS keep protective structures, guards, and
panels in good repair, in place and securely fastened.
NEVER modify or remove safety devices.
DO NOT change engine governor settings or over-
speed engine.
Fumes from engine exhaust can cause injury or death.
DO NOT run engine in an enclosed area. Always
provide good ventilation.
ALWAYS maintain unit in safe operating condition.
Damaged or worn out muffler can cause fire or
explosion.
Keep all hardware properly tightened. Check shear
bolts frequently. Check slip clutch on units so
equipped.
Maintain or replace safety and instruction labels, as
necessary.
NEVER store unit with fuel in fuel tank, inside a
building where any ignition sources are present such
as hot water heaters, space heaters, or clothes dryers.
Allow the engine to cool before storing in any
enclosure.
For extended storage, clean unit thoroughly. See
Engine Manual for proper storage.
Use only attachments or accessories designed for your
unit.
Check components frequently. If worn or damaged,
replace with manufacturer’s recommended parts.
SECTION 3 - SPECIFICATIONS
Model Number 939001 939002 939300
Description ST520E ST520 ST520
Engine - Tecumseh LH195SA LH195SA OH195SA
Engine Power – hp (kW) at Maximum RPM 5.0 (3.7) 5.0 (3.7) 5.9 (3.7)
Fast Idle Speed-RPM (min
-1
)
3600 ± 150
Displacement - in. (cc) 11.88 (195)
Electric Start 120V Recoil Recoil
Fuel See Engine Manual
Tank Capacity - qt. (L) 2.0 (1.96) 3.0 (2.8)
Snow Clearing Width - in. (cm) 20 (50.8)
Chute
Rotation Angle
200°
Impeller
Diameter - in. (cm) 12 (30.5)
Speed-RPM-Max (min
-1
)
1200
Auger
Diameter - in. (cm) 11.0 (27.98)
Speed-RPM-Max (min
-1
)
120
Auger Brake Yes
Drive Clutching Wet Sump Gearbox
Speeds 1 Forward
Pneumatic Tires - in. 10
Size and Weight
Height - in. (cm) 43.13 (109.53)
Length - in. (cm) 51.25 (130.18)
Width - in. (cm) 22.38 (56.84)
Weight - lb (Kg) 125 (56.7) 120 (54.4) 121 (54.8)