Liebherr RL 66 Pipe Layer

Boom

Overall Height 31.22 ft in (9515 mm)
Boom Length 27.89 ft in (8500 mm)

Drum

Drum Length 11 in (279 mm)
Flange Diamter 24.1 in (610 mm)
Cable Diameter 0.8 in (20 mm)
Cable Length 393.8 in (10000 mm)
Hook Block 4 sheaves
Hook Speed (Up, Down) 52.5 ft/min (16 m/min)
Drum Diameter 10 in (254 mm)

Dimensions

Overall Length 19.02 ft in (5795 mm)
Overall Width 10.99 ft in (3348 mm)
Width Over Tracks 18.54 ft in (5651 mm)
Overall Height 11.63 ft in (3543 mm)
Ground Clearance 1.82 ft in (552 mm)
Height To Top Of Suspended Cab 12.14 ft in (3700 mm)

Undercarriage

Number Of Track Rollers Per Side 9
Number Of Carrier Rollers Per Side 2
Shoe Size 35.99 in (914 mm)
Track Gauge 8.24 ft in (2510 mm)

Engine Details

Engine Make Liebherr
Engine Model Liebherr D 946 A7
Net Power 368.8 hp (275 kw)
Power Measured @ 1800 rpm
Displacement 732.3 cu in (12 L)
Lubrication System Pressurised lube system
Injection System Direct fuel injection
Cooling System Hydrostatic fan drive
Air Cleaner Dry-type air cleaner
Aspiration Turbochanged
Emission Standards EPA/CARB Tier 3/Tier 4f

Operational Specs

Operating Weight 130844 lb (59350 kg)
Counterweight without Frame 26455 lb (12000 kg)
Counterweight 35241 lb (15985 kg)
Weight of Standard Boom 7286 lb (3305 kg)
Alternator Supplied Amperage 140 amps
Operating Voltage 24 V
Starter 10.5 hp (7.8 kw)
Battery 4 x 95 Ah

Service Refill Capacities

Fuel Tank Capacity 174.4 gal (660 L)
Engine Oil Capacity 11.4 gal (43 L)
Cooling System Fluid Capacity 18 gal (68 L)
Hydraulic System Fluid Capacity 34.1 gal (129 L)
Final Drives Fluid Capacity 5.9 gal (22 L)

Transmission

Steering Hydrostatic
Transmission Type Infinitely variable hydrostatic travel drive, independent drive for each track
Max Speed – Reverse 2.5 mph (4 km/h)
Final Drive Type Combination spur gear with planetary gear, double-sealed (duo cone seals) with electronic seal-integrity indicator

Hydraulic System

Hydraulic System Load sensing (demand controlled)
Controls Single joystick for hoist winch and adjustable boom cylinder, free all device of hook in case of danger. Further single joystick for counterweight.
Control Valve 3 circuits, expandable to 6
Pump Type Swash plate piston pump
Pump Flow Capacity 74.8 gal/min (283 L/min)
Operating Pressure 4060 psi (27800 kPa)
Hoist Cylinder Variable flow hydraulic pump
Filtration Return filter with magnetic rod in the hydraulic tank

Brakes

Parking Brake Multi-disc brake, wear-free, automatically applied with neutral joystick position
Service Brake Hydrostatic (self-locking), wear-free
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