Honda H5518

Honda H5518 lawn tractorThe 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:
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)
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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