Overview

Made in India for tough roads, is the Mahindra RoadMaster G90 summed up in a few words. After intense research into the road construction scenario in India and its neighboring markets, we realized that while many large and expensive motor graders from international companies are available in the market, none of them are made keeping in mind the Nepal requirements where more than 90% of the projects are of small and medium roads. This is where the RoadMaster G90 comes into the picture for such intermediary applications. It is also relevant for the applications as railways, industrial plot leveling among others.

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Features

Specifications

PARAMETERS ROADMASTER
Variants Grader G90
Engine Model Mahindra DITEC 4915 IA BSIII CEV
Form of Air Aspiration Turbocharged
No of Cylinders 4
Bore 96mm
Stroke 122 mm
Displacement 3532cc
High idle rpm 2400 +/- 50 rpm
Low ideal rpm 850 +/- 50 rpm
Cooling system water cooled
Type of fuel Diesel
Gross horse power 66.9 kW (91 HP) @ 2200 +/- 50rpm
Peak gross torque 345Nm @ 1400-1600 rpm
Electrical system voltage 12 V
Operating Specification Gross vehicle weight 8350 +/- 167 kg
FAW 2800 +/- 56 kg
RAW 5500 +/- 110 kg
Speed @ gear (kmph) Forward Reverse
1st 4.5 to 6 5.5 to 7
2nd 7.5 to 9.0 9.0 to 10.5
3rd 16.5 to 18.5
4th 33.0 to 36.5
Turning radius outside tyre R1 10 m
Steering angle inner wheel 45 degrees
Steering angle outer wheel 32 degrees
Moldboard Base Length of MB 3000 +/- 15 mm
Thickness of Moldboard 16 +/- 0.5 mm
Blade Height H19 516 +/- 3 mm
Cutting Edge (blade) Standard Length of cutting edge w/o side extension (optional) W8 2600 mm
{3 piece cutting edge}
{1100 + 1100 + 400}
Standard length of cutting edge
with side extension
W8 3000 +/- 15 mm
{4 piece cutting edge}
{1100 + 1100 + 400+ 400}
Width of Cutting Edge 152 +/- 2 mm
Cutting Edge (blade) 16 +/- 0.5 mm
End Bit Width 200 +/- 1 mm
Thickness 16 +/- 0.5 mm
Blade Pull force kN 27
Blade Down force kN 27
Dimension (mm) Distance between mid & rear axle L9 1850 mm
Distance between front middle axle A 4300 mm
Wheel Base L3 5225 mm
Distance- Front axle to Moldboard
Blade base
L12 1691 mm
Transport length L1 8578 mm
Ground Clearance below front axle beam H18 528 mm
Minimum Ground Clearance H4 467 mm
Max vehicle height H1 3290 mm
Track width- Front W3F 1674 mm
Track Width Rear W3R 1654 mm
Width- outside front tires W1F 2021 mm
Width- outside rear tires W1R 2001 mm
Width- Transport
(Over rear counter weight)
WW7 2080 mm
Blade Range Circle rotation angle AB 50 +/-1.5 deg from transverse of vehicle
Circle drive Hydraulic cylinders with no end mechanical stoppers
Blade side shift (LH/ RH) 513 +/-2.6 mm
Blade tilt angle/ Bank cut angle (LH/RH) at ground level measured on drawbar 25.6deg/ 20deg] +/- 2
Blade pitch angle at ground line A11 Forward 40deg +/- 2 Backward 15deg +/- 2
Blade lift at normal blade pitch angle 395 +/- 25*
Max blade cut depth below ground at nominal blade angle 300 +/- 25*
Attachment oscillation angle Upward 10 +/-2 deg
Downward 15 +/-2 deg
Transmission Model Name Carraro 4WDTransmission
Gear Ratios Forward / Reverse
1st 5.603 / 4.643
2nd 3.481/2.884
3rd 1.585 / 1.313
4th 0.793 / 0.657
Torque converter ratio 2.64
Front Axle Type None Driven, Steerable Central Pivoted
Loading Capacity(TON) 8
Middle Axle Type Driven, Non Steerable, Rigid
Reduction ratio, Differential 2.75
Reduction Wheel end 6.932
Total Reduction Ratio 19.04
Rear Axle Type Driven, Non Steerable, Central Pivoted+/-5 deg Oscillation angle
Reduction ratio, Differential 2.75
Reduction Wheel end 6.932
Total Reduction Ratio 19.04
Tyres and Wheels Tyre Spec 13 x 24-12 PR
SLR 600 +/- 10
DLR 603 +/- 10
Wheel Rim Size 9×24
Tyre Pressure Front / Middle / Rear 44 +/-2psi
Brakes Service Brake type Foot operated hydraulically actuated oil immersed disc in middle axle
Parking brake type Hand operated  mechanically actuated oil immersed disc in middle axle
Streeing Type Power Steering
steering Valve Load sensing with priority valve 200 cc
Other feature Emergency steering in case of pump failure
Electrical System Voltage 12 V
Battery Rating 12 V, 100 AH
Alternator type 12 V, 90Amp
Hydraulics System Open Centre
Pump Type Fixed Displacement Tandem Gear Pump
26. cc + 26 cc
Max Pump Flow rate 54 [email protected] 2200 rpm
Max Working pressure 200 +/- 5 bar
Refill qty 50 litres
System Capacity 60 litres
Other Feature Load Holding with pressure relief valves for lift and sensing cylinder
Services Capacities Hydraulic tank 50 litres @ 2000 hrs
Fuel tank 85 litres
Engine coolant 17 litres @ 1000 hrs
Engine oil 13.5 litres @ 500 hrs
Transmission 16 litres @ 1000 hrs
Middle axle or Rear axle
(Differential)
14.5 litres @ 1500 hrs for each axle
Middle Axle or Rear Axle
(Final Drive)
1.5 litres (On each wheel side) @ 1500 hrs
Optional Fitments Ripper 5 tyne
Dozer 1.98 meter Width

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