Hyster H80C Specifications
The Hyster H80C is a heavy-duty internal-combustion
forklift designed for rugged industrial operations requiring reliable material
handling, long-term durability, and straightforward maintenance. With a rated
capacity of 8,000 lb (3,629 kg), the H80C occupies an important niche in the
classic Hyster C-Series, known for its tough welded-steel chassis, mechanical
simplicity, and longevity in punishing environments.
These forklifts were widely deployed in steel
yards, fabrication shops, foundries, lumber mills, ports, warehouses,
and distribution centers. The H80C’s appeal lies in its simplicity:
minimal electronics, a strong industrial engine, a reliable hydraulic
system, and a sturdy mast assembly. Even decades after its introduction,
the H80C remains common in industrial fleets because of its robust
construction, widespread parts availability, and ease of field
servicing.
The truck’s predictable controls, good
visibility, and steady load-handling characteristics make it a
dependable choice for day-to-day lifting tasks up to 8,000 lb. Operators
value its responsive steering, stable wheelbase, and ruggedness under
long hours of operation.
The H80C was offered with various industrial engines
depending on production year and market.
Most units were equipped with:
- GM 4.3-L V6 LPG/gasoline industrial engine
- Continental or Ford industrial inline-six engines
- Diesel variants in certain markets (less common)
Engine Characteristics:
- Displacement: approx. 3.7-4.3 L
- Rated power output: approx. 75-95 hp (56-71 kW)
- Peak torque: approx. 150-220 lb-ft (203-298 Nm)
- Idle speed: approx. 650-750 rpm
- Maximum governed speed: approx. 2,500-2,700 rpm
- Fuel type: LPG, gasoline, or diesel (variant-dependent)
- Ignition (gasoline/LPG): mechanical distributor or early electronic system
These engines are optimized for strong low-RPM torque, essential for pushing,
climbing, and lifting heavy loads at low speeds.
Lubrication System
The H80C uses a full-pressure wet-sump lubrication system.
- Oil pump: engine-driven gear pump
- Oil capacity: approx. 5.0-6.0 L (5.3-6.3 qt)
- Normal oil pressure: 20-30 psi (138-207 kPa) at idle
- Oil pressure at operating RPM: 50-70 psi (345-483 kPa)
- Recommended viscosity: SAE 15W-40 (diesel), SAE 10W-30/15W-40 (LPG/gasoline)
- Filter: full-flow spin-on filter
Lubrication reliability is critical for long engine life, especially under
high-temperature workloads.
Cooling System
Cooling is based on a forced-circulation liquid system.
- Coolant capacity: approx. 10-12 L (10.5-12.7 qt)
- System pressure: approx. 13-15 psi (90-103 kPa)
- Thermostat opening temp: approx. 82°C (180°F)
- Fan: engine-driven mechanical fan with shroud
- Pump: belt-driven centrifugal pump
Transmission
The H80C uses a heavy-duty hydraulic powershift transmission.
- Type: 1- or 2-speed powershift (depending on configuration)
- Forward travel speed: approx. 11-13 mph (18-21 km/h) unladen
- Reverse speed: approx. 10-12 mph (16-19 km/h)
- Transmission fluid capacity: approx. 10-12 L (10.5-12.7 qt)
- Recommended fluid: ATF Dexron III or industrial ATF
Shifts are executed via lever-actuated hydraulic clutch packs, ensuring smooth
and durable operation.
Drive Axle
The front drive axle is a rugged planetary or reduction-type axle designed to
handle heavy loads.
- Axle lubricant: SAE 80W-90 or 85W-140 gear oil
- Axle capacity: approx. 6-7 L (6.3-7.4 qt)
Planetary hubs improve torque transfer and protect drivetrain components.
Brakes
Heavy industrial braking components provide strong stopping power.
- Service brakes: hydraulic wet-disc (most common) or drum brakes on older units
- Parking brake: mechanical hand-lever drum or band-type
Wet-disc systems offer long service life with minimal maintenance requirements.
The H80C uses a straightforward 12-volt electrical
system built for reliability.
- System voltage: 12 V
- Battery capacity: approx. 100-120 Ah
- Alternator output: approx. 50-70 A (gas engines), 70-100 A (diesel engines)
- Starter motor: approx. 2.5-3.0 kW
- Ignition: mechanical distributor (gas/LPG engines) or glow-plug-assisted
(diesel)
Electrical components are rugged and easy to diagnose.
The H80C’s frame is constructed using heavy-gauge
welded steel.
Drive Configuration:
- Drive wheels: front
- Steering wheels: rear
- Drive type: 2WD
Tire Options:
- Front: approx. 8.25-15
- Rear: approx. 6.50-10
Pneumatic tires are preferred for outdoor terrain; cushion tires are better
suited to smooth indoor floors.
The steering system is hydrostatic with rear-wheel steering.
Steering:
- Steering type: hydraulic orbitrol
- Steering pump flow: approx. 8-12 L/min (2.1-3.2 gpm)
- Steering axle: oscillating center pivot
- Turning radius: approx. 2.6-2.8 m (102-110 in)
Hydraulics control lifting, tilting, and optional
attachments.
- Max system pressure: approx. 2,300-2,700 psi (159-186 bar)
- Pump type: engine-driven gear pump
- Pump flow: approx. 40-55 L/min (10-14.5 gpm)
- Reservoir capacity: approx. 35-40 L (37-42 qt)
- Hydraulic fluid: ISO VG 32 or VG 46
Lift and tilt cylinders are double-acting with heavy-duty seals.
| Service Refill Capacities |
- Engine oil: approx. 5.0-6.0 L (5.3-6.3 qt)
- Coolant: approx. 10-12 L (10.5-12.7 qt)
- Transmission: approx. 10-12 L (10.5-12.7 qt)
- Drive axle: approx. 6-7 L (6.3-7.4 qt)
- Hydraulic system: approx. 35-40 L (37-42 qt)
Available mast options include simplex, duplex, and
triplex.
Mast Heights:
- Simplex: approx. 3.0-3.6 m (118-142 in)
- Duplex: approx. 3.6-4.5 m (142-178 in)
- Triplex: approx. 4.5-6.0 m (178-236 in)
Free-Lift:
- Duplex/triplex: approx. 0.9-1.5 m (35-59 in)
Fork Specifications:
- Length: 1,067-1,524 mm (42-60 in)
- Width: approx. 125-150 mm (5-6 in)
- Thickness: approx. 45-55 mm (1.75-2.2 in)
Rated capacity: 8,000 lb (3,629 kg) at 24-in (610-mm)
load center
De-rating occurs with:
- Elevated load centers
- Long forks
- Attachments
- High mast extension
- Lift speed (unladen): approx. 0.45-0.55 m/s (90-110
ft/min)
- Lift speed (laden): approx. 0.35-0.45 m/s (70-90 ft/min)
- Lowering (unladen): approx. 100-130 ft/min
- Lowering (laden): approx. 110-150 ft/min
- Gradeability (unladen): approx. 20-25%
- Gradeability (laden): approx. 12-15%
- Drawbar pull: approx. 6,000-8,000 N (1,350-1,800 lbf)
- Length to fork face: approx. 3.0-3.2 m (118-126 in)
- Overall width: approx. 1.35-1.45 m (53-57 in)
- Overhead guard height: approx. 2.2-2.3 m (87-91 in)
- Wheelbase: approx. 2.0-2.1 m (79-83 in)
- Ground clearance: approx. 120-150 mm (4.7-5.9 in)
- Turning radius: approx. 2.6-2.8 m (102-110 in)
- Aisle width (1000x1200 pallet): approx. 4.2-4.5 m (165-177 in)
- Max fork height: approx. 3.0-6.0 m
- Free lift: approx. 0.9-1.5 m
- Fork lengths: 42-72 in
- Operating weight: 9,500-11,000 lb (4,309-4,990 kg)
- Counterweight mass: approx. 2,000-2,500 lb (907-1,134 kg)
250-Hour Service:
- Change engine oil and filter
- Lubricate mast and pivots
- Clean radiator fins
- Inspect steering axle joints
500-Hour Service:
- Replace transmission filter
- Inspect hydraulic filter
- Check axle seals
1,000-Hour Service:
- Replace transmission fluid
- Replace axle lubricant
2,000-Hour Service:
- Replace hydraulic oil
- Replace coolant
- Full mast inspection
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