Differential / Final drive
Transmission
Wheels & tires
(Standard equipment)
Engine data
(continued)
Tandems
Brakes
Engine data
Productivity
(Standard equipment)
Base operating weight
(Standard equipment)
Engine equipped with a two stage, dual
element, dry type air cleaner with exhaust
aspirator and service indicator. 24 volt starting
and electrical system with 75 amp
(1800 watt)
brushless alternator with internal voltage
regulator. Two heavy duty 12 volt maintenance
free batteries with 660 cold cranking amps
(CCA) and 160 minutes reserve capacity per
battery. 950 CCA batteries available optionally.
System includes battery disconnect.
Make/Model . . . . . . . . . . . . . . . . . Volvo 8400
Fully sequential, direct drive, powershift
transmission. Engine cannot be started if
transmission is in gear. Single lever “Smart
Shifter” electronic transmission controller
provides self-diagnostics. The flywheel
mounted, multi-disc master clutch is oil cooled
and lubricated for long life.
Ground speeds at 2200 RPM with standard
tires:
Forward
Reverse
Gears.....mph ........km/h
Gears.....mph ........km/h
1................2.8 ...........4,4
1................2.8 ...........4,4
2................3.9 ...........6,2
3................5.3 ...........8,5
2................5.3 ...........8,5
4................7.5.........11,9
5 .............10.5.........16,9
3 .............10.5.........16,9
6 .............14.7.........23,6
7 .............20.4.........32,7
4 .............20.4.........32,7
8 .............28.5.........45,7
Transmission guard is standard equipment and
is hinged for easy access.
Make/Model . . . . . . . . . . . . . . . . . Volvo SR30
Single reduction final drive with an operator
controlled lock/unlock differential. Rear axles
are induction hardened, supported on double
row spherical roller bearings.
Weights shown include full cab with ROPS, all
operating fluids and operator.
G726B
Total . . . . . . . . . . . . . . . . . . . 35,400 lb
(16 057 kg)
On front wheels . . . . . . . . . . 10,266 lb
(4 657 kg)
On rear wheels . . . . . . . . . . . 25,134 lb
(11 401 kg)
Weight adjustments for various options are
listed.
Typically equipped operating weight:
includes 14' x 25" x 7/8"
(4 267 x 635 x 22 mm)
moldboard and scarifier.
G726B . . . . . . . . . . . . . . . . . 37,420 lb
(16 973 kg)
Maximum blade pull (no wheel slip, 0.85 traction
co-efficient). . . . . . . . . . . . . . 28,019 lb
(12 709 kg)
Blade down force
• cutting capability
(ISO 7134) . . . . . . . . . . . . . 17,854 lb
(8 099 kg)
Blade down force is the maximum downward
force which may be applied at the cutting
edge.
Make/Model . . . . . . . . . . . . . . . . . . Volvo D7DGDE2
Type . . . . . . . . . 4 Cycle, Turbocharged, Aftercooled
No. of cylinders . . . . . . . . . . . . . . . . . . . . . . In Line 6
Bore & stroke . . . . . 4.25" x 5.11"
(108 x 130 mm)
Displacement . . . . . . . . . . . . . . . . . 436 cu in
(7,1 l)
Maximum net engine output @ 2200 RPM
(per SAE J1349) . . . . . . 198-235 hp
(148-175 kW)
Rated gross brake horsepower @ 2200 RPM
• Gears forward 1, 2 and
Reverse 1. . . . . . . . . . . . . . . . . 205 hp
(153 kW)
Rated gross brake horsepower @ 2200 RPM
• Gears forward 3-8 and
Reverse 2-4 . . . . . . . . . . . . . . . 241 hp
(180 kW)
Rated net brake horsepower @ 2200 RPM
• Gears forward 1, 2 and
Reverse 1 . . . . . . . . . . . . . . . . . . 198 hp
(148 kW)
Torque @1100 RPM. . . . . . . . 664 lb.ft
(900 N.m)
Torque rise . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35%
Rated net brake horsepower @ 2200 RPM
• Gears forward 3-8 and
Reverse 2-4 . . . . . . . . . . . . . . . . 235 hp
(175 kW)
Torque @1400 RPM . . . . . 774 lb.ft
(1 050 N.m)
Torque rise . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34%
All Wheel Drive engaged
Rated gross brake horsepower @ 2200 RPM
• All gears . . . . . . . . . . . . . . . . . . . 241 hp
(180 kW)
Rated net brake horsepower @ 2200 RPM
• All gears . . . . . . . . . . . . . . . . . . . 235 hp
(175 kW)
Torque @ 1400 RPM . . . . . 774 lb.ft
(1 050 N.m)
Torque rise . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34%
Performance: Rated net brake horsepower
SAE standard J1349/ISO 3046-2 conditions
with water pump, fuel system, air cleaner,
muffler, alternator, cooling fan and lubricating
oil pump.
Oscillating tandem case has internal gusseting
for maximum torsional strength. Field-proven
split ring/flanged sleeve tandem mounting and
1"
(25 mm)
thick inner wall resists flexing from
side loading during severe applications.
Depth . . . . . . . . . . . . . . . . . . . . . . 24.50"
(622 mm)
Width . . . . . . . . . . . . . . . . . . . . . . . 8.25"
(210 mm)
Thickness • inner wall . . . . . . . . . . . . 1.00"
(25 mm)
• outer wall . . . . . . . . . . . . 0.75"
(19 mm)
Center distance. . . . . . . . . . . . . 61.50"
(1 562 mm)
Drive chain pitch . . . . . . . . . . . . . . . . 2.00"
(51 mm)
Oscillation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±15º
Service Brakes: Foot operated
Fade resistant, hydraulically actuated, oil disc
service brakes located at the 4 tandem drive
wheels are self-adjusting, fully sealed and
maintenance free. System features crossover
dual braking circuits for uniform braking on
both sides of the grader. Includes reserve
power assist and operator warning system
(visual and audible).
Parking Brake
Spring applied hydraulic release independent,
disc type parking brake on transmission output
shaft and effective on all 4 tandem drive
wheels. Includes visual and audible operator
warning system for parking brake on,
transmission in gear condition. Transmission
will not engage with park brake on.
Braking systems to SAE Recommended
Practice J1473 OCT. 90, and J1152 APR. 80;
ISO 3450-1993-01-28. Volvo uses asbestos
free brake components.
Tire size . . . . . . . . . . . . . . . . . . . . . . 14:00 x 24, G-2
Ply rating (PR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Rim size . . . . . . . . . . . . . . . . . . . . . 10.0"
(254 mm)
Bolt-on rims are not interchangeable between
the front wheels and the tandem wheels.
1000
1200
1400
1600
1800
2000
2200
Gross torque (lb.ft)
Gross torque (Nm)
Engine speed (rpm)
0
80
160
240
320
400
480
560
640
720
800
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
torque vs. engine speed
Engine performance curve