Specifications
4
Hydraulic reservoir capacity is 300 l (79.25 gal) and
is equipped with breather, sight and electrical level
indicator, clean out access, and internal diffuser.
Each function is equipped with relief valves to protect
the hydraulic circuit from overload or shock.
Replaceable, ten micron (absolute) full flow tank filter
is furnished in the hydraulic circuit. All oil is filtered
prior to return to the hydraulic reservoir.
Hydraulic system also includes pump transmission
disconnect clutch & hydraulic oil cooler.
Drums
Two equal width winches are driven by independent
variable displacement axial piston hydraulic motors
through planetary reduction mounted on separate
front and rear shafts with anti-friction bearings.
Drums are grooved for 26 mm rope.
Powered hoisting/lowering operation is standard with
automatic (spring applied, hydraulically released)
multi-disc brakes, and drum rotation indicators.
Optional: Free-fall operation for front and/or rear
drums(s).
Optional: Auxiliary (third) hydraulic powered
drum mounted in boom butt. Includes third drum
control system. Auxiliary drum is used as the
luffing hoist when machine is equipped with a
luffing jib.
Optional: Auxiliary drum preparation includes
electric wiring, controls, hydraulic selector valve
and plumbing.
Boom Hoist
Independent boom hoist consists of drum grooved for
22 mm diameter wire rope. Includes 22 mm diameter
wire rope for 20 part line reeving.
Drum is powered by a variable displacement
hydraulic motor coupled to an internal brake and
planetary gearbox equipped with ratchet and pawl.
Mast and Gantry
Moving mast is 8,2 m (27') long and connects the
boom hoist reeving to the steel boom suspension
strap rigging. When used with optional self-erect
package, the mast is utilized for crane assembly and
disassembly. It is capable of lifting and positioning
the crawler assemblies, stacking the counterweights
and assembling the boom and jib.
Upperworks
Engine
Cummins Model QSL 8.9 liter diesel, 6 cylinder, 253
kW (340 BHP) @ 1800 governed RPM.
Includes engine block heater (120 V), air heater
starting aid (24 V), oil heater starting aid (120 V), high
silencing muffler, radiator and fan.
Multiple hydraulic pump drive transmission provides
independent power for all machine functions.
Two 12 volt maintenance-free, Group 8D batteries,
1375 CCA at -18°C (0° F), 24 volt starting and 70 amp
alternator.
One 568 l (150 gal) capacity diesel fuel tank,
mounted on right side of upperworks, with level
indicator in operator’s cab.
Controls
Modulating electronic-over-hydraulic controls
provide infinite speed response directly proportional
to control lever movement. Controls include
Manitowoc’s exclusive EPIC® Electronically
Processed Independent Control system providing
microprocessor driven control logic, pump control,
on-board diagnostics and service information.
Block-up limit control is standard for hoist and whip
lines.
Rated Capacity Indicator system (RCI) is standard
for main boom and upper boom point. “Function
cut-out” or “warning only” operation is available via
programmable configuration.
Travel and swing alarms are standard.
Hydraulic System
Six high-pressure piston pumps are driven through a
multi-hydraulic pump transmission. These six pumps
provide independent “closed loop” hydraulic power
for front drum, rear drum, boom hoist system, swing
system, and both left and right crawler operation.
System kg/cm2 (psi) lpm (gpm)
Front Drum 422 (6,000) 300 (80)
Rear Drum 422 (6,000) 300 (80)
Boom Hoist 422 (6,000) 227 (60)
Swing System 422 (6,000) 227 (60)
Left Crawler 422 (6,000) 227 (60)
Right Crawler 422 (6,000) 227 (60)
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