The Honda H5518 is a lawn tractor with Honda GX640 two-cylinder water-cooled gasoline engine 0.64 l (635 cc, 38.7 cu-in). The Honda H5518 tractor used selective sliding 8 speeds forward and 4 speeds reverse transmission. The Honda H5518 tractor was produced from 1991 to 1999.
The Honda GX640 is a liquid-cooling engine with a 76.0 mm (3.0 in) of the cylinder bore and a 70.0 mm (2.8 in) of the piston stroke, and 8.0:1 compression ratio rating. It produced 18.0 HP (13.2 kW) at 3,600 rpm of output power and 46.1 Nm (4.7 kg·m, 34.0 ft·lb) at 2,500 rpm of torque.
The Honda H5518 tractor used a mechanical leading-trailing shoe type brakes and pinion-and-sector four-wheel steering. The tractor has 150 mm (5.9 in.) of ground clearance.
General information
| General Specifications | ||
| Model | Honda H5518 | |
| Modifications | A4 type – two and four-wheel drive; A2 type – two-wheel drive only | |
| 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) | |
| 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: | |
| 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) | |
| Wheels and tires | ||
| 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.) | |
Maintenance data
| Engine | |
| Idle speed | 1,400 ± 150 rpm |
| Cylinder compression | 4.0-7.0 kg/cm2 (57-100 psi) at 350 rpm |
| Valve clearance | |
| Intake valve | 0.10-0.14 mm (0.004-0.006 in) |
| Exhaust valve | 0.18-0.22 mm (0.007-0.009 in) |
| Carburetor | |
| Main jet | #98 |
| Float height | 14.0 mm (0.55 in) |
| Pilot screw opening | 1-1/2 turns out |
| Oil system | |
| 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) |
| Oil pressure | 3.0-4.0 kg/cm2 (43-57 psi) at 350 rpm |
| Thermostat | |
| Start opening | 82° C (180° F) |
| Fully open | 95° C (203° F) |
| Lift height | 8.0 mm (0.31 in) |
| Thermoswitch | |
| Temperature range for continuity | 110° ± 2° C (230° ± 36° C) |
| Oil pump | |
| Tip clearance (standard) | 0.14 mm (0.006 in) |
| Outer rotor clearance (standard) | 0.15-0.21 mm (0.006-0.008 in) |
| Pump end clearance | 0.04-0.09 mm (0.0016-0.0035 in) |
| Ignition system | |
| Ignition timing | 22 ° B.T.D.C |
| Spark plug | NGK: BPR5ES-11 NIPPONDENSO: W16EPR-11 |
| Spark plug gap | 1.0-1.1 mm (0.039-0.043 in) |
| Primary side ignition coil resistance | 0.37-0.50 Ω |
| Secondary side ignition coil resistance | 8.0-9.3 kΩ |
| Starter motor | |
| Brush length | 14 mm (0.55 in), limit: 9.0 mm (0.35 in) |
| Mica depth (limit) | 0.2 mm (0.008 in) |
| Transmission | |
| Transmission oil capacity | 3.8 L (4.0 US.qt) |
| Front differential oil capacity | 0.45 L (0.48 US.qt) |
| Final riduction oil capacity | 0.2 L (0.21 US.qt) |
Attachments
| Honda MM46: 46″ mid-mount mower deck with 3-blade | |
| Cutting width | 1,160 mm (46 in) |
| Honda MM52: 52″ mid-mount mower deck | |
| Cutting width | 1,320 mm (52 in) |
| Honda DB752A: 46″ front-mount blade | |
| Cutting width | 1,160 mm (46 in) |
| Honda DB5054: 54″ front-mount blade | |
| Cutting width | 1,370 mm (54 in) |
| Honda SB752A: 42″ front-mount two-stage snowblower | |
| Width | 1,060 mm (42 in) |
| Honda FL5540 loader (four-wheel drive model only) | |
| Loader weight | 249 kg (550 lbs) |
| Height (to pin) | 1,83 mm (72.1 in) |
| Dump reach | 410 mm (16.4 in) |
| Dump angle | 47° |
| Reach at ground | 1,210 mm (47.9 in) |
| Rollback angle | 17° |
| Lift to full height (at pin) | 181 kg (400 lbs) |
| Bucket width | 1,060 mm (42 in) |
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