Construction machines are heavy investments — a JCB 3DX backhoe loader costs anywhere between ₹30–50 lakhs, and a CASE 770 motor grader even more. Yet time and again, we see contractors lose weeks of productivity simply because basic preventive maintenance was ignored. As an authorised CASE and ACE spare parts dealer with over 15 years of experience, we at Adinath Traders have put together the definitive maintenance checklist every machine owner in India must follow.

1. Engine Oil — Check Daily, Change on Schedule

Engine oil is the lifeblood of your machine. Before every shift, check the oil level using the dipstick with the engine cold and the machine on level ground. Look for two things: level and colour. Clean oil is amber; black, gritty oil means it is overdue for a change.

  • Change interval: Every 250–500 hours (check your OEM manual)
  • Always use the grade specified for your engine (15W-40 is standard for most CASE engines)
  • Use only CNHI-approved oils for CASE equipment to protect warranty
  • After changing oil, always replace the engine oil filter simultaneously

2. Hydraulic Oil & Hydraulic Filter

Hydraulic oil contamination is the leading cause of expensive hydraulic pump and cylinder failures. Dirty oil causes scoring of internal components that cost lakhs to replace.

  • Check hydraulic oil level daily via the sight glass
  • Change hydraulic oil every 1,000 hours or annually
  • Replace the hydraulic filter every 500 hours — never skip this
  • Inspect all hoses and pipes for cracks, bulges, or weeping joints

3. Air Filter — Inspect Every 10 Hours in Dusty Conditions

On Indian construction sites — particularly in Rajasthan, Haryana, and Punjab — dust levels are extreme. A clogged air filter starves the engine of air, increasing fuel consumption by up to 15% and dramatically reducing engine life.

  • Check the restriction indicator (red band visible = replace immediately)
  • Clean or replace the primary filter element every 250 hours minimum
  • Never clean a paper filter with compressed air from the inside out — this pushes debris into the engine
  • Always replace the safety/secondary element when replacing the primary

4. Fuel System — Quality Fuel Prevents Costly Injector Damage

Diesel quality in India varies enormously. Water and particulate contamination in fuel are major causes of injector and fuel pump failure — repairs that can cost ₹80,000 to ₹2,00,000 or more.

  • Drain the fuel water separator daily (there is a drain valve at the bottom)
  • Replace the primary fuel filter every 500 hours
  • Fill the tank at the end of every day to prevent condensation building up inside
  • Only refuel from reputable sources; avoid roadside vendors for high-value machines

5. Coolant System — Never Let Your Machine Overheat

Overheating is one of the fastest ways to destroy an engine. Cracked cylinder heads and blown gaskets are the result — expensive repairs that are entirely avoidable.

  • Check coolant level daily in the expansion tank (never open the radiator cap when hot)
  • Inspect the radiator fins for mud, chaff, or debris — clean with low-pressure water or air
  • Replace coolant every 2 years or 4,000 hours with OEM-approved coolant
  • Check the radiator cap pressure rating — a faulty cap is a common overlooked cause of overheating

6. Tracks & Undercarriage (Excavators & Dozers)

Undercarriage components — sprockets, rollers, idlers, and track links — account for up to 50% of a tracked machines maintenance cost over its life. Regular inspection saves enormous money.

  • Check track tension daily — both too tight and too loose accelerates wear
  • Inspect sprockets and idlers for unusual wear patterns weekly
  • Check track shoe bolts for tightness every 250 hours
  • Look for leaking carrier and bottom rollers — replace seals early to prevent roller loss

7. Bucket Teeth, Cutting Edges & Adapters

Worn bucket teeth dramatically reduce productivity — a machine working with worn teeth does the same work as a machine with new teeth but takes 30–40% more fuel and time. Inspect daily.

  • Replace bucket teeth when worn down to the adapter nose
  • Check adapter retaining pins and locks every shift
  • Inspect cutting edges and side cutters for wear weekly
  • A worn cutting edge costs far less to replace than a worn bucket lip

8. Brakes & Steering System

Brake and steering failures are a serious safety hazard. These systems must be checked without fail.

  • Test brakes at the start of every shift — service brakes and parking brake
  • Check brake master cylinder fluid level weekly
  • Inspect brake pads and shoes every 500 hours
  • Listen for any unusual sounds during steering — a groaning sound indicates low fluid or a failing pump

9. Electrical System — Batteries & Connections

Electrical faults cause unexpected downtime and are often linked to corroded connections or a failing alternator.

  • Clean battery terminals and check voltage monthly
  • Inspect the alternator belt for tension and cracks
  • Check all electrical connections for corrosion, especially after monsoon season
  • Test all lights, alarms, and warning systems weekly

10. Keep a Machine Logbook — Always

Every major machine should have a physical logbook recording hours worked, fuel consumed, maintenance carried out, and any faults observed. This is invaluable for:

  • Predicting when the next service is due
  • Diagnosing recurring problems
  • Maintaining resale value — a well-documented machine sells for more
  • Warranty claims — OEM warranties require proof of scheduled maintenance

Where to Get Genuine Spare Parts in Haryana

All maintenance is only as good as the parts you use. Counterfeit and substandard spare parts — sold cheaply at roadside shops — cause more failures than they prevent. At Adinath Traders, Rohtak, we supply 100% genuine CASE, ACE, JCB, and CNHI spare parts. Every part comes with authentic packaging and is backed by manufacturer warranty.

Call us on +91 82220 99180 or visit us at Hissar Road, Rohtak, near Old Bus Stand. Our parts experts can identify the correct part for your machine by model number within minutes.

Remember: A machine that is well maintained earns money every day. A machine that breaks down costs money every day. Invest in maintenance — it is always cheaper than repair.