Manitowoc Grove GRT8120 User Manual

Grove 1-7
GRT8120 OPERATOR MANUAL INTRODUCTION
1
Published 3-22-2021, Control # 702-02
Wheels and Tires
Lugs per Wheel . . . . . . . . . . . . . . . . . . . . . . . . . .24
Torque . . . . . . . . 407 to 475 N·m (300 to 350 lbf-ft)
Tire Size . . . . . . . . . . . .29.5 x 25, 34 bias ply rating
NOTE: For roading and lifting pressures, refer to the
Load Chart Manual in the cab.
Boom
Length . . . . . . . . . 11.3 m to 60 m (37.2 ft to 197 ft)
Power . . . . . . . . . . . . . . . 7 Section, MEGAFORM™
Pinning . . . . . . . . . . . TWIN-LOCK™ Boom Pinning
Max Tip Height without
Extension. . . . . . . . . . . . . . . . . . . . 63.1 m (207 ft)
Elevation . . . . . . . . . . . . . . . . . . . . . . . . -3° to +80°
Extensions (Optional)
Manual Bi-Fold Lattice Swingaway
Jib . . . . . 10.5 m to 17.6 m (34.5 ft to 57.6 ft)
Manual Offsets at . . . . . . . . 0°, 20° and 45°
Maximum Tip Height . . . . . . . 80.8 m (265 ft)
Hydraulic Bi-Fold Lattice Swingaway
Jib . . . . . 10.5 m to 17.6 m (34.5 ft to 57.6 ft)
Hydraulic Offsets from . . . . . . . . . . . 0°to 45°
Maximum Tip Height . . . . . . . 80.8 m (265 ft)
Outriggers
Outrigger Spread
Retracted. . . . . . . . . . . . . . . 3150 mm (124 in)
Mid Extend . . . . . . . . . . . . . 5233 mm (206 in)
Fully Extended . . . . . . . . . . 7316 mm (288 in)
Outrigger Pad Diameters
Polymer. . . . . . . . . . . . . . . . . 600 mm (23.6 in)
Aluminum (Optional) . . . . . . . 600 mm (23.6 in)
Max Individual Outrigger
Pad Load . . . . . . . 556 kN (125,000 lbf or 125 kip)
Swivel Assembly
Electrical. . . . . . . . . . . . . . . . . . . . . . . 20 Slip Rings
Hydraulic . . . . . . . . . . . . . . . . . . . . . . . . . . 10 ports
Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 ports
Air Conditioning . . . . . . . . . . . . . . . . . . . . . . 2 ports
Swing Gearbox
Reduction Ratio . . . . . . . . . . . . . . . . . . . . . . . 35.2:1
Continuous Torque. . . . . . . . 8191 N·m (6042 lbf-ft)
Max Pinion Torque . . . . . . 16382 N·m (12083 lbf-ft)
Hydraulic Pumps
NOTE: Pump flow rate (output) figures are theoretical.
Pump #1
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Piston
Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Output - @ loaded engine speed
Section 1 flow rate . . 204.4 L/min (54 gal/min)
Pump #2
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Piston
Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Output - @ loaded engine speed
Section 1 flow rate . . 204.4 L/min (54 gal/min)
Pump #3
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gear
Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Output - @ loaded engine speed
Section 1 flow rate . . 86.7 L/min (22.9 gal/min)
Hoists
Drum Dimensions
Diameter . . . . . . . . . . . . . . . . 371 mm (14.6 in)
Length. . . . . . . . . . . . . . . . . . 549 mm (21.6 in)
Cable, Main, 35x7 Steel
Diameter . . . . . . . . . . . . . . . . . 19 mm (0.75 in)
Length. . . . . . . . . . . . . . . . . . . . .250 m (820 ft)
Max Permissible
Single Line Pull . . . . . . . 7784 kg (17,160 lb)
Cable, Aux., 35x7 Steel
Diameter . . . . . . . . . . . . . . . . . 19 mm (0.75 in)
Length. . . . . . . . . . . . . . . . . . . . .185 m (607 ft)
Max. Permissible
Single Line Pull . . . . . . . 7784 kg (17,160 lb)
Max. Single Line Speed. . . . 148 m/min (490 ft/min)
Motor Displacement
Minimum . . . . . . . . . . . . . . . . . . . 48 cc (2.9 in³)
Maximum . . . . . . . . . . . . . . . . . . 85 cc (5.2 in³)

Manitowoc Grove GRT8120 Specifications

General

Brand	Manitowoc
Model	Grove GRT8120
Category	Construction Equipment
Language	English