Clark CMP25L Specifications
The Clark CMP25L is a mid-capacity LPG-powered
pneumatic-tire forklift engineered for mixed indoor-outdoor industrial
operations requiring dependable performance, efficient fuel consumption,
excellent maneuverability, and simplified servicing. With a nominal lifting
capacity of approximately 2,500 kg (5,500 lb), the CMP25L is designed for
warehousing, logistics centers, light-to-medium construction support,
agricultural processing, manufacturing plants, distribution yards, and
freight-handling operations.
As part of Clark’s CMP-series LPG forklifts,
the CMP25L integrates a fuel-efficient internal-combustion powertrain, a
reinforced steel chassis, balanced hydraulic performance, and a durable
drivetrain suited for continuous cycles.
This model is known for smooth operator controls, low vibration,
clean-burning LPG power, strong components, and accessibility that
enables fast service intervals. Operators benefit from clear forward
visibility, ergonomic hydraulic levers, a low step-in height,
predictable steering feedback, and stable load handling.
Maintenance personnel appreciate the
well-organized engine bay, the straightforward routing of hydraulic and
electrical systems, industrial-grade filters, and reliable component
designs. The CMP25L remains one of Clark’s widely deployed compact LPG
pneumatic-tire trucks because of its stable performance, ruggedness, and
low total cost of ownership.
The Clark CMP25L is typically powered by efficient
low-emission LPG internal-combustion engines such as the Mitsubishi 4G64-LPG,
GM/PSI 2.4L LPG, or Nissan K21 industrial engine. These engines deliver smooth,
torquey, and clean-running performance appropriate for mixed indoor-outdoor duty
cycles.
Mitsubishi 4G64-LPG
- Type: inline 4-cylinder industrial LPG engine
- Displacement: approx. 2.4 L
- Power output: approx. 40-50 kW (54-67 hp)
- Peak torque: approx. 150-180 Nm (111-133 lb-ft)
- Rated speed: approx. 2,400-2,600 rpm
- Idle speed: approx. 650-750 rpm
- Fuel system: LPG vapor-withdrawal system with regulator, vaporizer, and mixer
GM/PSI 2.4L LPG
- Displacement: approx. 2.4 L
- Power output: approx. 45-55 kW (60-74 hp)
- Torque: approx. 150-170 Nm (111-125 lb-ft)
- Emissions: designed for indoor-capable operation with catalytic converter
Nissan K21 LPG
- Displacement: approx. 2.1 L
- Power output: approx. 40-50 kW (54-67 hp)
- Torque output: approx. 140-160 Nm (103-118 lb-ft)
Engine Construction:
- Cast-iron cylinder block
- Cast-iron or aluminum head
- Full-pressure lubrication system
- Forged crankshaft and durable connecting rods
- Heat-treated aluminum pistons with reinforced crowns
- Industrial camshaft and valve components
Fuel System:
- LPG vaporizer/regulator
- Mixer or throttle-body fuel system depending on version
- Multi-stage fuel filtration
- Safety shutoff solenoid integrated into fuel supply
- High-capacity industrial air cleaner
Lubrication System:
- Full-pressure wet-sump lubrication
- Gear-driven crankshaft oil pump
- Oil capacity: approx. 3.5-5.0 L (3.7-5.3 qt)
- Normal pressure: approx. 250-400 kPa (36-58 psi)
- Oil grade: SAE 10W-30 or 15W-40
- Spin-on full-flow filter
Cooling System:
- Liquid cooling with belt-driven water pump
- Radiator capacity: approx. 6-8 L (6.3-8.4 qt)
- Thermostat opens approx. 82°C (180°F)
- Pressurized cooling system (approx. 13 psi / 90 kPa)
- Industrial fin-core radiator optimized for outdoor airflow
The CMP25L is equipped with a compact industrial
powershift transmission tuned for smooth directional changes and balanced torque
transfer.
Transmission:
- Type: torque-converter powershift
- Forward speed (unladen): approx. 17-19 km/h (10.5-12 mph)
- Reverse speed: approx. 15-17 km/h (9-10.5 mph)
- Transmission fluid capacity: approx. 6-8 L (6.3-8.4 qt)
- Fluid type: Dexron III or Clark-approved ATF
- Direction selection: steering-column lever operating hydraulic clutch packs
- Transmission cooling: integrated oil passage with heat-exchange via radiator
Drive Axle:
- Cast-steel differential housing
- Planetary reduction hub system
- Axle oil capacity: approx. 3-5 L (3.2-5.3 qt)
- Recommended lubricant: SAE 80W-90 or 85W-140
- High-strength axle shafts designed for mixed-terrain stress loads
Brake System:
- Service brakes: hydraulic drum brakes (standard)
- Optional brakes: oil-immersed wet-disc brakes for high-duty applications
- Parking brake: manual mechanical lever-actuated drum brake
- Brake behavior: consistent, smooth deceleration for outdoor yard surfaces
- System voltage: 12 V
- Battery capacity: approx. 60-90 Ah
- Alternator output: approx. 40-70 A
- Starter motor: approx. 1.4-2.0 kW
- Safety circuits: neutral-start switch, operator-presence system
- Wiring: industrial-grade harness with abrasion protection
- Lighting package: headlights, taillights, work lights, optional strobe beacon
Drive
Configuration:
- Front-wheel drive
- Rear-wheel steering
- 2WD pneumatic-tire configuration suitable for outdoor surfaces
Tire Specifications (Pneumatic):
- Front: approx. 28x9-15
- Rear: approx. 6.50x10
Optional Tires:
- Solid pneumatic tires
- Lug-type outdoor traction tires
- Non-marking tires for partial indoor usage
Chassis Construction:
- Fully welded steel frame
- Reinforced mast mounting plates
- Heavy counterweight integrated into the rear frame
- Protected routing for hydraulic and electrical lines
Steering:
- Type: fully hydrostatic power steering
- Steering pump flow: approx. 8-12 L/min (2.1-3.2 gpm)
- Steering axle: oscillating rear axle with heavy-duty pivot bushings
- Turning radius: approx. 2.0-2.3 m (79-91 in)
- Steering response: light-effort, predictable, stable under load
- Maximum hydraulic pressure: approx. 2,200-2,400 psi
(152-165 bar)
- Pump type: engine-driven external gear pump
- Pump flow: approx. 30-45 L/min (8-12 gpm)
- Hydraulic reservoir: approx. 20-25 L (21-26 qt)
- Fluid type: ISO VG 32 or ISO VG 46
- Lift cylinders: twin double-acting hydraulic cylinders
- Tilt cylinders: dual tilt cylinders with cushioning
- Auxiliary hydraulic circuits optional for sideshift or attachment functions
| Service Refill Capacities |
- Engine oil: 3.5-5.0 L (3.7-5.3 qt)
- Cooling system: 6-8 L (6.3-8.4 qt)
- Transmission: 6-8 L (6.3-8.4 qt)
- Drive axle: 3-5 L (3.2-5.3 qt)
- Hydraulic oil: 20-25 L (21-26 qt)
Mast Types:
- Standard 2-stage V mast
- 3-stage FV full free-lift mast
Lift Height Options:
- Duplex mast: approx. 3.0-4.0 m (118-157 in)
- Triplex mast: approx. 4.5-6.0 m (177-236 in)
Free Lift:
- Approx. 0.2-1.0 m (8-39 in) depending on mast
Fork Specifications:
- Standard fork length: 1,067-1,219 mm (42-48 in)
- Optional forks: up to 1,524 mm (60 in)
- Fork width: approx. 100-125 mm (4-5 in)
- Fork thickness: approx. 35-45 mm (1.4-1.8 in)
- Rated capacity: 2,500 kg (5,000-5,500 lb) at 600 mm
(24 in) load center
De-rated with:
- long forks
- extended mast heights
- heavy attachments
- off-center loads
- slope-operating conditions
- Lift speed (unladen): approx. 0.40-0.50 m/s (80-100
ft/min)
- Lift speed (laden): approx. 0.25-0.30 m/s (50-60 ft/min)
- Lowering speed (unladen): approx. 90-120 ft/min
- Lowering speed (laden): approx. 110-140 ft/min
- Travel speed (unladen): approx. 17-19 km/h (10.5-12 mph)
- Travel speed (laden): approx. 14-16 km/h (9-10 mph)
- Gradeability (unladen): approx. 20-25%
- Gradeability (laden): approx. 12-15%
- Drawbar pull: approx. 10,000-15,000 N (2,248-3,370 lbf)
- Overall length to fork face: approx. 2.5-2.7 m
(98-106 in)
- Overall width: approx. 1.15-1.25 m (45-49 in)
- Overhead guard height: approx. 2.1-2.2 m (83-87 in)
- Wheelbase: approx. 1.55-1.70 m (61-67 in)
- Ground clearance: approx. 110-130 mm (4.3-5.1 in)
- Turning radius: approx. 2.0-2.3 m (79-91 in)
- Aisle width (1000x1200 pallet): approx. 3.7-4.0 m (146-157 in)
- Maximum fork height: 3.0-6.0 m depending on mast configuration
- Free lift: 0.2-1.0 m
- Fork options: 42-60 in
- Operating weight: approx. 3,800-4,500 kg (8,378-9,920 lb)
- Counterweight mass: approx. 1,200-1,700 kg (2,645-3,748 lb)
250-Hour Service:
- Replace engine oil and oil filter
- Clean radiator
- Clean or replace air filter
- Lubricate mast and linkage points
- Inspect battery condition
500-Hour Service:
- Replace fuel filter
- Inspect driveline and shaft couplings
- Inspect brake system
- Check axle seals for leakage
1,000-Hour Service:
- Replace transmission fluid
- Replace drive axle oil
- Inspect hydraulic cylinders for leakage
- Check mast chain stretch and realign as needed
2,000-Hour Service:
- Replace hydraulic oil
- Replace coolant
- Perform complete mast structural inspection
- Test operator-presence and neutral-start systems
____________________________________________________________________________________
| Telehandlers Specifications |
| Front-End Loader Specifications |