1-3
Published 9-04-2014, Control # 422-08
RT765E-2 SERVICE MANUAL
INTRODUCTION
1
GROVE
LIST OF SPECIFICATIONS
General
Model . . . . . . . . . . . . . . . . . . . . . . RT765E-2 Series
Rated Capacity. . . . . . . . . . . See Load Chart in cab
Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 x 4 x 4
Gross Weight . . See Axle Weight Distribution Table
Dimensions
NOTE:
Dimensions listed are for a crane with all
components fully retracted in the travel mode with
29.5 x 25 tires.
Wheelbase . . . . . . . . . . . . . . . . . . 13 ft 4 in(4.06 m)
Overall Crane Length . . . . . 44 ft 2.33 in (13,470 m)
Overall Crane Width . . . . . . . . .10 ft 11in (3.53 mm)
Overall Crane Height . . . . . . . . . .11 ft 10 in (3.6 m)
Outside Turning Radius
2 Wheel Steer . . . . . . . 37 ft 2.55 in (11.342 m)
4 Wheel Steer . . . . . . .22 ft 1.5 in (6.744 mm)
Outside Curb Clearance
2 Wheel Steer . . . . . . . . . 38 ft 5.88 in (11.7 m)
4 Wheel Steer . . . . . . . . . . 23 ft 3.5 in (7.1 m)
Outrigger Spread
Retracted. . . . . . . . . . . . . . . .10 ft 5 in (3.17 m)
Mid Extend . . . . . . . . . . . . . .17 ft 4 in (5.28 m)
Fully Extended . . . . . . . . . . .23 ft 4 in (7.11 m)
Capacities
Fuel Tank . . . . . . . . . . . . . . . . . . . 74 gal (280 liters)
Coolant System . . . . . . . . . . . . . . . . . . See Engine
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Specifications
Engine Lubrication System . . . . . . . . . See Engine
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Specifications
Hydraulic Tank (Reservoir Capacity)
Total. . . . . . . . . . . . . . . . . . . . . . 150 gal (568 l)
Hoists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model GHP-30A . . . . . . . . . . . . 15.5 qt (14.7 l)
Swing Gearbox. . . . . . . . . . . . . . . . . . 5.25 qt (4.9 l)
Axle Planetary Ends . . . . . . . . . . . . . . . . . . 8 pt (4 l)
Axle Differentials . . . . . . . . . . . . . . . . . . 48 pt (23 l)
Transmission (includes Torque Converter)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 qt (38 l)
Torque Converter
Stall Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.82:1
Charge Pump Capacity . . . . . . . .20 gpm (76 l/min)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .@ 2000 rpm
Transmission
Gear Ratios
Forward and Reverse
Low Range
1st . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.59
2nd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.06
3rd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.22
High Range
4th . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.33
5th . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.08
6th . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.76
Engine
Cummins QSB 6.7
Type . . . . . . . . . . . . . 4 cycle, Diesel, Turbocharged
Number of Cylinders . . . . . . . . . . . . . . . . . . . . . . .6
Horse Power Rating. 179 kW (240 hp) @ 2500 rpm
Oil Pan Capacity . . . . . . . . . . . . . . . 18.5 qt (15.6 l)
Coolant System . . . . . . . . . . . . . . . . . . . 40 qt (38 l)
Axles
Total Ratio . . . . . . . . . . . . . . . . . . . . . . . . . 24.817:1
Carrier Ratio . . . . . . . . . . . . . . . . . . . . . . . . . 5.86:1
Planetary Ratio . . . . . . . . . . . . . . . . . . . . . . 4.235:1
Brakes
Type . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic Disc
Size . . . . . . . . . . . . . . 18.5 x 0.63 in (470 x 16 mm)
Wheels and Tires
Lugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Torque . . . . . . . . . 340 to 360 lb-ft (461 to 488 Nm)
Tire Size
Standard . . . . . . . . . . . .29.5 x 25, 28 ply rating
Optional . . . . . . . . . . . . 29.5R25, 34 ply rating
NOTE:
For roading and lifting pressures, refer to the Load
Chart Book in the cab.
Swing Gearbox
Reduction Ratio . . . . . . . . . . . . . . . . . . . . . . . . 36:1
Output Torque . . . . . . . . . . . . . . . . . . . 45,000 in-lb
Boom
Length . . . . . . . . . . . 35.6 to 110 ft (10.8 to 33.5 m)
Power. . . . . . . . . . . . . . . . . . . 4 Section, Full Power
Elevation . . . . . . . . . . . . . . . . . . .-3 to +78 degrees
Extensions
Fixed* . . . . . . . . . . . . . . . . . . . . . 32.6 ft (10 m)
Folding*. . . . . . . . . . . 32.6 or 56 ft (10 or 17 m)
*Extensions are offsettable at 0, 25, or 45
degrees.
Swivel Assembly
Electrical . . . . . . . . . . . . . . . . . . . . . . 20 Slip Rings
Hydraulic . . . . . . . . . . . . . . . . . . . . . . . . . . 12 ports
Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 ports
Hydraulic Pumps
NOTE:
Pump output figures are theoretical.
Pump #1
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gear
Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Output - @ loaded engine speed
Section 1. . . . . . . . . . . . . 50.4 gpm (191 l/min)
Section 2. . . . . . . . . . . . . . 25.1 gpm (95 l/min)
Pump #2
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gear
Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Output - @ loaded engine speed
Section 1. . . . . . . . . . . . . 27.8 gpm (105 l/min)
Pump #3
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gear
Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Output - @ loaded engine speed
Section 1. . . . . . . . . . . . . . 19.8 gpm (75 l/min)
Reference Only
