🚜 Earthmoving Equipment
Motor Grader Inspection & Certification in Saudi Arabia
Motor graders shape road bases, finish subgrades, maintain desert tracks and haul roads, and level airfield and industrial platforms on Saudi highway and development projects. Accuracy depends on the circle, drawbar and moldboard, while the long wheelbase, tandem drive and articulation hold the machine steady on loose surfaces. Independent inspection checks these precision and safety systems and gives the project a documented condition report.
What we inspect on a motor grader
- ✓Circle and drawbar: circle gear teeth, circle drive gearbox, wear strips and shoes, drawbar ball and socket, and the circle slip clutch
- ✓Moldboard: cutting edges and end bits, slide rails and wear inserts, side-shift and tilt cylinders
- ✓Scarifier or ripper, if fitted: shanks, tips, pins and mounting
- ✓Articulation and frame: hinge pin and bearings, steering cylinders, frame cracks and articulation lock
- ✓Tandem drive: chain case oil, tandem pivot wear, wheel bearings and tyres
- ✓Service and parking brake performance, including a parking brake hold test on a slope
- ✓Front wheel lean cylinders, steering response, and secondary steering test
- ✓Cab protection and blade visibility: ROPS and FOPS, mirrors, camera, alarms and lights
Common defects we find
- ✓Worn circle teeth and loose circle shoes causing blade chatter
- ✓Leaking blade lift or tilt cylinders that drift under load
- ✓Worn tandem chain case or wheel bearings
- ✓Weak parking brake or worn service brake components
- ✓Cracks at the articulation frame hinge or drawbar mountings
Risks of operating uncertified
- ✓Loss of steering on the articulated frame or front-wheel lean system leading to collision or rollover at road edges and embankments
- ✓Moldboard or scarifier dropping or swinging uncontrolled when lift cylinders leak or the circle slip clutch fails, striking people or vehicles nearby
- ✓Ground personnel or traffic struck when working on live road shoulders, because a long machine with a wide blade limits visibility
Testing, standards & frequency
Load / performance test
Not applicable: motor graders are not lifting appliances. Brake and parking brake tests, steering and secondary steering checks, and blade lift, tilt and circle drive function tests apply instead.
Inspection interval
Typically at least annually, with pre-mobilisation checks and more frequent re-inspection where client or site rules require.
Standards referenced
- ISO 3471 (roll-over protective structures)
- ISO 3450 (braking systems of rubber-tyred machines)
- ISO 5010 (steering requirements for rubber-tyred machines)
- ISO 20474 series (earth-moving machinery safety)
Part of our Heavy Equipment Testing & Inspection service. You receive an inspection report, Certificate of Conformity and inspection tag for passing equipment.
Motor Grader inspection by city
Industries using this equipment
FAQs
What is the most important item to check on a motor grader?＋
The circle and drawbar system and the brakes and steering are key, because they determine blade accuracy and machine control. Cracks around the articulation frame are also a priority.
Can a grader be inspected on a remote road project site?＋
Yes, inspections can usually be carried out where the machine is working, provided there is safe access and a stretch of level ground for brake and steering checks. Confirm the site arrangements with your inspection provider in advance.