Clark GPS30 Specifications
The Clark GPS 30 is a mid-capacity pneumatic-tire
internal-combustion forklift engineered to meet the demands of mixed
indoor-outdoor material-handling environments. With a nominal lifting capacity
of 3,000 kg (6,000 lb), the GPS30 stands as one of Clark’s most versatile
pneumatic-tire models for operations requiring reliable traction, stable load
handling, and consistent performance throughout long duty cycles. Its
pneumatic-tire configuration provides superior shock absorption, making the
machine well-suited for cracked pavement, uneven concrete, lightly unpaved
surfaces, and transitional yard-to-warehouse operations.
The GPS 30 platform incorporates a fully welded industrial chassis, a reinforced
mast structure for high load stability, and a heavy-duty driveline designed for
repetitive lifting cycles. Its operator station emphasizes visibility,
ergonomics, and reduced vibration exposure.
The forklift maintains predictable steering
behavior, strong hydraulic control, and dependable operation in varied
climates and workloads. Technicians benefit from its wide service
openings, easily traceable hydraulic circuits, simplified electrical
architecture, and long-life industrial components.
The Clark GPS30 is recognized for its durability, balanced weight
distribution, refined control response, and strong suitability for
multi-surface industrial material-handling operations, making it a
reliable daily-use forklift across manufacturing environments,
distribution facilities, lumber yards, and fabrication plants.
The Clark GPS 30 is typically equipped with one of two
industrial internal-combustion power units: the Waukesha 2.9-liter LPG/Gasoline
engine or the Continental TM27 2.7-liter LPG/Gasoline engine. Both engines are
proven industrial designs widely used in forklifts throughout the industry. They
deliver smooth low-RPM torque, consistent throttle response, and exceptional
durability under long operational shifts and repeated load cycles.
Engine Option (Waukesha 2.9L LPG/Gasoline):
- Configuration: inline 4-cylinder, 4-stroke OHV industrial engine
- Displacement: approx. 2.9 L
- Power output: approx. 45-60 kW (60-80 hp)
- Peak torque: approx. 140-165 lb-ft (190-224 Nm)
- Rated operating speed: approx. 2,500-2,700 rpm
- Idle speed: approx. 750-850 rpm
- Fuel: LPG or gasoline
- Fuel induction: mixer-style vapor induction (LPG) or carburetor (gasoline)
- Ignition: industrial distributor-type ignition system
Engine Option (Continental TM27 2.7L
LPG/Gasoline):
- Displacement: approx. 2.7 L
- Power output: approx. 45-55 kW (60-74 hp)
- Peak torque: approx. 135-155 lb-ft (183-210 Nm)
- Governed speed: approx. 2,600-2,800 rpm
- Idle: approx. 750-850 rpm
- Fuel: LPG or gasoline
- Fuel system: mixer-regulated LPG vapor draw system
Engine Construction:
- Deep-ribbed cast-iron cylinder block
- Heavy-duty cast-iron head with heat-resistant valve train
- Forged steel multi-bearing crankshaft
- Industrial-grade connecting rods and wrist-pin assemblies
- Aluminum pistons with oil cooling galleries
- Positive crankcase ventilation system
Fuel System:
- LPG vapor-draw mixer with regulator and safety lock-off
- Gasoline carburetion available on certain versions
- Multi-stage fuel filtration
- Vacuum-controlled LPG metering valve
- Mechanical or electric fuel pump as required by model
Lubrication System:
- Full-pressure forced-circulation lubrication
- Gear-type crankshaft-driven oil pump
- Oil capacity: approx. 4.0-5.0 L (4.2-5.3 qt)
- Operating pressure: approx. 200-380 kPa (29-55 psi)
- Recommended oil: SAE 10W-30 or 15W-40 industrial
- Spin-on full-flow oil filter with bypass valve
Cooling System:
- Liquid-cooled with centrifugal water pump
- Multi-row radiator with industrial heat-dissipation capacity
- Coolant volume: approx. 7-8 L (7.4-8.4 qt)
- Thermostat begins opening at approx. 82°C (180°F)
- System pressure: approx. 13-15 psi (90-103 kPa)
The GPS30 employs a torque-converter powershift
transmission engineered for frequent directional transitions, smooth load
acceleration, and stable control when handling heavy loads.
Transmission:
- Type: torque-converter powershift
- Gearing: forward and reverse, single- or dual-speed variation
- Forward speed (unladen): approx. 16-18 km/h (10-11 mph)
- Reverse speed: approx. 14-16 km/h (9-10 mph)
- Transmission oil volume: approx. 6-7 L (6.3-7.4 qt)
- Recommended fluid: Dexron III or Clark-approved ATF
- Direction-change mechanism: hydraulic clutch packs with controlled engagement
- Integrated transmission oil cooling circuit
Drive Axle:
- Cast-steel differential housing with industrial bevel-gear assembly
- Planetary final-drive reduction hubs
- Axle lubricant capacity: approx. 4-5 L (4.2-5.3 qt)
- Recommended lubricant: SAE 80W-90 or 85W-140 gear oil
Brake System:
- Oil-immersed wet-disc brakes
- High-durability friction plates
- Self-adjusting internal actuation
- Parking brake: mechanical lever-activated design
- Electrical system: 12 V
- Battery capacity: approx. 80-100 Ah
- Alternator output: approx. 55-75 A
- Starter motor: approx. 1.7-2.5 kW
- Industrial-grade wiring with abrasion protection
- Safety circuits: operator-presence switch, neutral-start switch, LPG lock-off
solenoid
- Lighting: headlights, rear lamps, optional overhead work lights and warning
beacon
Drive System:
- Drive wheels: front
- Steering wheels: rear
- Drive type: 2WD pneumatic-tire arrangement optimized for mixed-terrain
traction
Tire Specifications (Pneumatic):
- Front tires: approx. 28x9-15 pneumatic
- Rear tires: approx. 6.50x10 pneumatic
Optional Tires:
- Solid pneumatic tires
- Aggressive-tread outdoor patterns
- Non-marking versions for indoor surfaces
Chassis Construction:
- Fully welded steel frame
- Reinforced load-bearing cross-members
- Protected hydraulic and electrical routing
- Low center-of-gravity architecture
Steering:
- Steering type: hydrostatic
- Steering pump flow: approx. 10-13 L/min (2.6-3.4 gpm)
- Oscillating rear steer axle
- Turning radius: approx. 2.2-2.4 m (86-95 in)
- Steering effort: light, smooth, responsive under load
- Maximum pressure: approx. 2,300-2,600 psi (159-179
bar)
- Pump: engine-mounted external gear pump
- Pump flow: approx. 35-55 L/min (9-14.5 gpm)
- Hydraulic reservoir capacity: approx. 22-26 L (23-27 qt)
- Hydraulic oil: ISO VG 32 or ISO VG 46
- Lift cylinders: double-acting, high-strength
- Tilt cylinders: dual hydraulic cylinders with pressure relief
- Optional auxiliary circuits: sideshift, fork-positioner, clamps, rotators
| Service Refill Capacities |
- Engine oil: approx. 4-5 L (4.2-5.3 qt)
- Coolant: approx. 7-8 L (7.4-8.4 qt)
- Transmission fluid: approx. 6-7 L (6.3-7.4 qt)
- Drive axle lubricant: approx. 4-5 L (4.2-5.3 qt)
- Hydraulic fluid: approx. 22-26 L (23-27 qt)
- Mast types: Duplex (2-stage) and Triplex (3-stage
full free-lift)
- Duplex lift height: approx. 3.0-3.7 m (118-146 in)
- Triplex lift height: approx. 4.3-5.5 m (169-216 in)
- Free lift: approx. 0.15-0.40 m (6-16 in)
- Standard forks: 1,067-1,219 mm (42-48 in)
- Optional forks: 1,524 mm (60 in) and longer
- Fork width: approx. 100 mm (4 in)
- Fork thickness: approx. 40-50 mm (1.6-2.0 in)
Rated capacity: 3,000 kg (6,600 lb) at 600 mm (24 in)
load center
Capacity affected by: mast height, fork
extensions, attachments, off-center loads, surface conditions
- Lift speed (unladen): approx. 0.45-0.55 m/s
- Lift speed (laden): approx. 0.30-0.40 m/s
- Lowering speed (unladen): approx. 110-140 ft/min
- Lowering speed (laden): approx. 130-160 ft/min
- Travel speed (unladen): approx. 16-18 km/h
- Travel speed (laden): approx. 14-16 km/h
- Gradeability (unladen): approx. 18-22%
- Gradeability (laden): approx. 14-18%
- Drawbar pull: approx. 12,000-16,000 N (2,698-3,597 lbf)
- Overall length to fork face: approx. 2.5-2.7 m
(98-106 in)
- Overall width: approx. 1.1-1.2 m (43-47 in)
- Overhead guard height: approx. 2.1-2.2 m (83-87 in)
- Wheelbase: approx. 1.45-1.60 m (57-63 in)
- Ground clearance: approx. 130-150 mm (5.1-5.9 in)
- Turning radius: approx. 2.2-2.4 m (86-95 in)
- Aisle width (1000x1200 pallet): approx. 3.7-4.0 m (147-158 in)
- Maximum fork height: 3.0-5.5 m depending on mast
- Free lift: approx. 0.15-0.40 m
- Fork lengths: 42-60 in
- Operating weight: approx. 4,100-4,700 kg (9,039-10,361 lb)
250-Hour Service:
- Replace engine oil and filter
- Lubricate mast and steer axle points
- Inspect air filter
- Check radiator condition
- Verify battery condition
500-Hour Service:
- Replace transmission filter
- Inspect hydraulic filter
- Check driveline couplings
- Inspect axle seals and bearings
1,000-Hour Service:
- Replace transmission oil
- Replace drive axle lubricant
- Inspect tilt and lift cylinders
- Examine mast alignment
2,000-Hour Service:
- Replace hydraulic oil
- Replace coolant
- Full mast inspection
- Test all safety interlocks
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