Earthmoving

Motor Grader
Maintenance Schedule

Motor graders are essential for road construction and maintenance, requiring diligent upkeep to ensure optimal performance and longevity. This comprehensive maintenance guide provides a structured approach to motor grader care, covering everything from daily inspections to in-depth service intervals and troubleshooting common issues. Follow this guide to minimize downtime, maximize efficiency, and extend the life of your motor grader.

4
Service Intervals
14
Daily Check Items
$5,000
Avg. Annual Cost
8
Common Issues

📋 In This Guide

Daily Pre-Operation Checklist

Complete these checks before starting your Motor Grader every day.

1
Engine Oil Level SAFETY CRITICAL
Check the dipstick to ensure the oil level is within the recommended range. Add oil if necessary.
2
Coolant Level SAFETY CRITICAL
Inspect the coolant level in the radiator and expansion tank. Ensure it's at the proper level.
3
Hydraulic Fluid Level SAFETY CRITICAL
Check the hydraulic fluid reservoir level. Low levels can indicate leaks or system issues.
4
Fuel Level SAFETY CRITICAL
Ensure sufficient fuel for the day's operations. Check for any fuel leaks.
5
Tire Condition and Pressure SAFETY CRITICAL
Inspect tires for cuts, bulges, and proper inflation. Maintain recommended tire pressure.
6
Blade Condition SAFETY CRITICAL
Check the blade for wear, damage, and proper cutting edge sharpness. Ensure moldboard is clean.
7
Circle Drive and Moldboard Controls SAFETY CRITICAL
Test the circle drive and moldboard controls for smooth and responsive operation. Note any sticking or unusual noises.
8
Articulation Joint SAFETY CRITICAL
Inspect the articulation joint for excessive play or damage. Grease as needed.
9
Lights and Signals SAFETY CRITICAL
Verify that all lights, including headlights, taillights, brake lights, and turn signals, are functioning correctly.
10
Brake System SAFETY CRITICAL
Test the brakes for proper function and responsiveness. Check for unusual noises or excessive pedal travel.
11
Fluid Leaks SAFETY CRITICAL
Inspect around the engine, hydraulic components, and drivetrain for any signs of fluid leaks.
12
Air Filter Indicator
Check the air filter restriction indicator. If indicated, service the air filter.
13
Grease Points
Grease all accessible grease fittings on the machine, including articulation points, steering linkages, and blade mechanisms.
14
ROPS (Roll Over Protection System) SAFETY CRITICAL
Inspect the ROPS structure for any damage or cracks. Ensure it is securely mounted.

Service Intervals

Follow these intervals to keep your Motor Grader running reliably.

250 Hours Service

Engine Oil and Filter Change

DIY

Drain and replace engine oil. Replace the oil filter.

⏱ 1-2 hours 💰 $150-300
Engine oilOil filter

Grease All Fittings

DIY

Lubricate all grease fittings on the machine, including articulation points, steering linkages, and blade mechanisms.

⏱ 30 min 💰 $20-50 (grease)
Grease

Inspect Hydraulic Hoses and Fittings

DIY

Check for leaks, cracks, or damage to hydraulic hoses and fittings. Tighten or replace as needed.

⏱ 1 hour 💰 $0-50 (unless replacement needed)
None, unless replacement needed

500 Hours Service

Fuel Filter Replacement

DIY

Replace the primary and secondary fuel filters.

⏱ 1 hour 💰 $80-150
Fuel filters

Inspect and Clean Air Filter

DIY

Inspect the air filter for dirt and debris. Clean or replace as needed.

⏱ 30 min - 1 hour 💰 $30-100 (if replacement needed)
Air filter (if needed)

Check Transmission Oil Level

DIY

Check the transmission oil level and top off if necessary. Inspect for leaks.

⏱ 30 min 💰 $0-20 (unless oil needed)
Transmission oil (if needed)

Inspect Blade Cutting Edges

Intermediate

Inspect blade cutting edges for wear and sharpness. Rotate or replace as needed.

⏱ 1-2 hours 💰 $100-500 (depending on replacement)
Cutting edges (if needed)Bolts

1000 Hours Service

Hydraulic Oil and Filter Change

Intermediate

Drain and replace hydraulic oil. Replace the hydraulic filter.

⏱ 2-3 hours 💰 $300-600
Hydraulic oilHydraulic filter

Transmission Oil and Filter Change

Intermediate

Drain and replace transmission oil. Replace the transmission filter.

⏱ 2-3 hours 💰 $250-500
Transmission oilTransmission filter

Inspect Wheel Bearings

Intermediate

Inspect wheel bearings for wear and proper lubrication. Repack or replace as needed.

⏱ 2-4 hours 💰 $100-400 (depending on replacement)
Wheel bearings (if needed)Grease

Check and Adjust Brakes

Intermediate

Inspect brake linings and adjust brakes as necessary to ensure proper function.

⏱ 2-3 hours 💰 $100-300
Brake parts (if needed)

2000 Hours Service

Engine Valve Adjustment

Professional

Adjust engine valves to ensure proper engine performance and efficiency.

⏱ 4-6 hours 💰 $500-1000
Valve cover gasket (if needed)

Coolant Flush and Replacement

Intermediate

Drain and flush the cooling system. Replace with new coolant.

⏱ 2-3 hours 💰 $150-300
CoolantCoolant flush

Inspect and Service Injectors

Professional

Inspect fuel injectors for proper spray pattern and performance. Clean or replace as needed.

⏱ 4-8 hours 💰 $400-1200
Fuel injectors (if needed)

Differential Oil Change

Intermediate

Drain and replace the differential oil.

⏱ 1-2 hours 💰 $100-200
Differential oil

Inspect Hydraulic Cylinders

Professional

Inspect all hydraulic cylinders for leaks, damage, and proper operation. Rebuild or replace as needed.

⏱ Varies 💰 $200-1000+ (depending on repair)
Seals, Cylinder parts (if needed)

Fluid Capacities & Types

Typical fluid specifications for Motor Grader models.

Fluid Typical Capacity Recommended Type Change Interval
Engine Oil 6-8 gallons SAE 15W-40 250 hours
Hydraulic Fluid 25-35 gallons ISO 46 or equivalent 1000 hours
Transmission Oil 8-12 gallons SAE TO-4 1000 hours
Coolant 6-8 gallons Ethylene Glycol based 2000 hours or 2 years
Differential Oil 2-3 gallons (per differential) SAE 80W-90 2000 hours

Common Issues & Troubleshooting

Problems operators frequently encounter with Motor Grader machines.

Medium Hydraulic System Leaks

Symptoms

  • • Reduced hydraulic power
  • • Visible fluid leaks
  • • Erratic blade movement

Cause

Worn seals, damaged hoses, loose fittings

Fix

Replace worn seals and damaged hoses. Tighten loose fittings. Inspect hydraulic cylinders.

💡 Prevention Tip

Regularly inspect hydraulic hoses and fittings for wear and tear. Replace hoses at recommended intervals.

High Engine Overheating

Symptoms

  • • High engine temperature
  • • Steam from radiator
  • • Loss of power

Cause

Low coolant level, faulty thermostat, clogged radiator

Fix

Check and top off coolant level. Replace thermostat. Clean or replace radiator.

💡 Prevention Tip

Maintain proper coolant levels and regularly flush the cooling system. Inspect the radiator for debris.

High Transmission Slippage

Symptoms

  • • Delayed engagement
  • • Loss of power
  • • Erratic shifting

Cause

Low transmission fluid, worn clutches, faulty solenoids

Fix

Check and top off transmission fluid. Replace worn clutches or faulty solenoids.

💡 Prevention Tip

Regularly check transmission fluid levels and change fluid and filter at recommended intervals.

Medium Blade Control Issues

Symptoms

  • • Slow or unresponsive blade movement
  • • Uneven cutting
  • • Blade drift

Cause

Hydraulic problems, worn circle drive components, damaged blade linkage

Fix

Inspect hydraulic system. Replace worn circle drive components. Repair or replace damaged blade linkage.

💡 Prevention Tip

Regularly grease and inspect circle drive and blade linkage components.

Low Tire Wear

Symptoms

  • • Uneven tire wear
  • • Reduced traction
  • • Vibration

Cause

Improper inflation, misaligned axles, aggressive operation

Fix

Maintain proper tire pressure. Align axles. Adjust operating techniques.

💡 Prevention Tip

Regularly check and maintain proper tire pressure. Avoid aggressive turning and braking.

Medium Starting Problems

Symptoms

  • • Engine cranks but doesn't start
  • • Weak battery
  • • Clicking sound when starting

Cause

Weak battery, faulty starter, loose electrical connections

Fix

Charge or replace battery. Replace starter. Tighten or clean electrical connections.

💡 Prevention Tip

Regularly inspect and maintain battery terminals and electrical connections.

Critical Brake Failure

Symptoms

  • • Reduced braking power
  • • Excessive pedal travel
  • • Grinding noises

Cause

Worn brake linings, air in brake lines, hydraulic leaks

Fix

Replace worn brake linings. Bleed brake lines. Repair hydraulic leaks.

💡 Prevention Tip

Regularly inspect brake linings and hydraulic system. Bleed brake lines as needed.

Medium Articulation Joint Play

Symptoms

  • • Excessive movement in the joint
  • • Clunking noises during turns
  • • Difficulty steering

Cause

Worn bushings, loose bolts, damaged bearings

Fix

Replace worn bushings. Tighten loose bolts. Replace damaged bearings.

💡 Prevention Tip

Regularly grease and inspect the articulation joint for wear and damage.

Annual Maintenance Costs

What to budget for Motor Grader maintenance per year.

Low End
$2,000
Average
$5,000
High End
$10,000+

Annual maintenance costs can vary widely depending on the machine's age, operating hours, and the severity of the work environment. More frequent use and harsher conditions will increase costs.

Pro Tips from the Field

Wisdom from experienced Motor Grader operators.

1

Always grease the circle drive after a full day of grading. This prevents buildup of abrasive materials and extends its life.

2

When replacing cutting edges, use anti-seize on the bolts. Makes future replacements much easier.

3

Pay close attention to hydraulic oil temperature. Overheating indicates a problem, like a clogged filter or failing pump.

4

Before starting on a cold day, let the engine idle for several minutes to warm up the hydraulic oil. This reduces stress on the hydraulic system.

5

Regularly check the tightness of the moldboard bolts. Loose bolts cause vibration and uneven wear.

6

When storing the grader for extended periods, fill the fuel tank to prevent condensation and rust.

7

Keep a logbook of all maintenance performed, including dates, hours, and parts replaced. This helps track maintenance history and identify potential issues.

Track Your Motor Grader Maintenance with FieldFix

Stop guessing when your next service is due. FieldFix tracks hours, schedules maintenance, logs expenses, and calculates your true cost per hour — automatically.

Start Free Trial → Learn More

Related Maintenance Guides

bulldozer → wheel loader → dump truck → roller compactor → excavator →