Honda H5518

Honda H5518The Honda H5518 is a lawn tractor with small 0.64 l (635 cc, 38.7 cu-in) two-cylinder water-cooled gasoline engine Honda GX640. The Honda H5518 tractor is equipped with selective sliding 8 speeds forward and 4 speeds reverse transmission. The Honda H5518 small tractor was produced from 1991 through 1999.

The Honda GX640 develops 18.0 HP (13.2 kW) at 3,600 rpm and 46.1 Nm (4.7 kg·m, 34.0 ft·lb) of torque at 2,500 rpm. It is a liquid-cooling motor with a 76.0 mm (3.0 in) cylinder bore and a 70.0 mm (2.8 in) stroke, and 8.0:1 compression ratio. The has an OHV design with two valves per cylinder; horizontal type carburetor with a butterfly valve; C.D.I.(Capacitor Discharge Ignition) ignition system, a mechanical centrifugal governor and electric starter.

The Honda H5518 tractor used a mechanical leading-trailing shoe type brakes and pinion-and-sector four-wheel steering. The tactor has 150 mm (5.9 in.) of ground clearance. The Honda H5518 is avalible in two versions:

  • A4 type – four-wheel drive (4WD);
  • A2 type – two-wheel drive (2WD)

Honda H5518 specifications

General Specifications
Model Honda H5518
Length 2,190-2,370 mm (86.2-93.3 in)
Width 1,070-1,125 mm (42.1-44.3 in)
Height 1,235 mm (48.6 in)
Wheel base 1,305 mm (51.4 in.)
Dry weight 457.0-480.0 kg (1,008-1,058 lbs)
Front tires size 20×7.0-12
Front tires pressure 98 kPa (1.0 kg/cm2, 14 psi)
Rear tires size 24.5×8.0-14
Rear tires pressure 79 kPa (0.8 kg/cm2, 11.4 psi)
Fuel tank capacity 9.0 l (2.38 US gal., 1.98 Imp gal.)
Battery 12V-30AH
Engine
Engine model Honda GX630
Displacement 635 cm3 (38.7 cu-in)
Bore x stroke 76.0 x 70.0 mm (3.0 x 2.8 in.)
Max. horsepower 18.0 HP (13.2 kW) at 3,600 rpm
Max. torque 46.1 Nm (4.7 kg·m, 34.0 ft·lb) at 2,500 rpm
Carburetor Horizontal type, butterfly valve
Cooling system Liquid-cooling
Ignition system CDI ignition
Lubricating system Forced oil by trochoid pump
Starting system Electric starter
Stoping system Cut off the power supply to the CDI (Open)
Fuel used Unleaded gasoline (octane number 86 or higher)
Spark plug NGK: BPR5ES-11 NIPPONDENSO: W16EPR-11
Oil type Honda 4-stroke or an equivalent (SE or SF)
Recommended oil SAE 10W-40
Oil capacity (without filter changed) 2.0 L (2.11 US qt, 1.76 Imp qt)
Oil capacity (with filter changed) 2.3 L (2.43 US qt, 2.02 Imp qt)
Transmission
Gear type Selective sliding 8 speeds forward and 4 speeds reverse transmission
Gear selections 8 forward, 4 reverse
Groung speeds Forward:
1 (L-1): 0.7 km/h (0.4 mph)
2 (H-1): 1.1 km/h (0.7 mph)
3 (L-2): 1.5 km/h (0.9 mph)
4 (H-2): 2.4 km/h (1.5 mph)
5 (L-3): 3.4 km/h (2.1 mph)
6 (H-3): 5.3 km/h (3.3 mph)
7 (L-4): 7.1 km/h (4.4 mph)
8 (H-4): 11.1 km/h (6.9 mph)

Reverse:
1 (L-R1): 0.8 km/h (0.5 mph)
2 (H-R1): 1.4 km/h (0.7 mph)
3 (H-R2): 1.8 km/h (1.1 mph)
4 (H-R2): 2.8 km/h (1.7 mph)

Frame
Brakes Mechanical leading-trailing shoe type brake (rear wheels)
Steering Pinion-and-sector four-wheel steering
Hydraulic system
Working pressure 90 kg/cm2 (1,280 psi)
Pump type Gear pump
Oil capacity 2.0 L (2.1 US. qt)