Volvo G726B User Manual

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