________________________________________________________________________________

Sears SS15 Technical Specifications

General Information

Tractor Model ...................... Sears SS-15 917.2538
Tractor Type ...................... Garden tractor
Manufacture Years ...................... 1972
Fuel Type ...................... Gasoline
Attachments ...................... Mower Deck

Sears SS15 Engine

Engine Model ...................... Briggs and Stratton 325431
Engine Type ...................... 4-cycle horizontal-shaft single cylinder air-cooled gasoline
Number of Cylinders ...................... 1
Displacement, cu.in (cc) ...................... 32.4 (531)
Engine Bore, in (mm) ...................... 3.56 (90.5)
Engine Stroke, in (mm) ...................... 3.25 (83.0)
Maximum Engine Power, hp (kW) ...................... 15.0 (11.2)
Rated Engine Speed, rpm ...................... 3600
Idle Speed, rpm ...................... 1200
Maximum Torque, Nm (ft-lbs) ...................... 34.5 (25.6)
Torque Speed, rpm ...................... 2700
Fuel System ...................... Carburetor
Governor Type ...................... Mechanical
Lubrication System ...................... Full pressure with oil filter
Spark Plug ...................... Champion J19LM
Spark Plug Gap, in (mm) ...................... 0.030 (0.76)
Intake Valve Clearance, in (mm) ...................... 0.007-0.009 (0.18-0.23)
Exhaust Valve Clearance, in (mm) ...................... 0.017-0.019 (0.43-0.48)
Fuel Tank Capacity, gal (L) ...................... 3.0 (11.5)
Oil Capacity, qts (L) ...................... 2.0 (1.9)

Electrical System

Electrical System Rating, Volts ...................... 12
Charging System Rating, Amps ...................... 15
Starter Type ...................... Electric
Number of Batteries ...................... 1
Battery Rating ...................... 12V, 280 CCA
Electric Ground ...................... Negative

Sears SS15 Transmission

Transmission Type ...................... Belt-driven gear
Gearbox Type ...................... 6F/2R
Number of Forward Gears ...................... 6
Number of Reverse Gears ...................... 2
Oil Capacity, qt (L) ...................... 5.0 (4.7)
Maximum Forward Speed, mph (kph) ...................... 6.5 (10.5)
Maximum Reverse Speed, mph (kph) ...................... 2.5 (4.0)

Wheels and Tires

Drive Wheels ...................... 2WD 4x2
Steering Configuration ...................... Front steer
Steering System ...................... Manual
Front Tire Size ...................... 16x5.50-8
Rear Tire Size ...................... 23x9.50-12

Sears SS15 Attachments

42" Mower Deck

Mower Deck Type ...................... Mid-mount
Number of Blades ...................... 3
Cutting Width, in (mm) ...................... 42 (1060)
Cutting Height, in (mm) ...................... 1.5-4.0 (38-102)
Deck Drive ...................... Belt
Lift System ...................... Mechanical