01Maintenance

Preventive maintenance schedules.

The single biggest determinant of total cost of ownership is not what you paid for the machine, it is whether you serviced it on time. Use the SDLG India schedules below.

02By the Hour

Service schedule by hour interval.

Skipping a 250-hour service to save ₹6,000 today routinely costs ₹1.5 lakh in unscheduled repairs within 18 months. Stick to the schedule.

Hours	Frequency	Tasks
50 hours	Daily / break-in	Visual walk-around: leaks, fasteners Engine oil & coolant levels Hydraulic oil sight glass Tyre pressure and condition Greasing of articulation points
250 hours	Monthly	Engine oil + filter (first only) Fuel filter primary element Air filter cleaning / inspection Battery terminals and electrolyte Brake oil top-up
500 hours	Quarterly	Engine oil + oil filter swap Fuel filter & water separator swap Hydraulic return filter Air filter primary swap Drive shaft greasing Tyre rotation check
1000 hours	Half-yearly	Hydraulic oil + suction filter Transmission oil + filter Coolant top-up & inhibitor check Air filter secondary swap Final drive oil Brake disc inspection Hose & line pressure test
2000 hours	Annual / major	Full hydraulic oil flush + filters Transmission oil flush + filter Final drive oil flush both axles Coolant flush & refill Injector test, valve clearance Turbo & EGR clean / inspect Belt swap, alternator check Cab AC service, dryer swap

Schedule reflects L968H-class wheel loader · Mining and dusty sites should halve all major fluid intervals.

03Fluid Specifications

Fluids, capacities, intervals.

Use only fluids meeting these specifications. Cheap multi-grade substitutes are the leading cause of premature pump and transmission failure in Indian conditions.

500 hrs

Engine oil

SpecAPI CK-4 / 15W-40

Capacity24 L

2000 hrs

Hydraulic oil

SpecISO VG-46 (mineral) / VG-32 (winter)

Capacity210 L

2000 hrs

Coolant

SpecOAT long-life, 50:50 with DM water

Capacity32 L

1000 hrs

Transmission oil

SpecTO-4 / SAE 30

Capacity38 L

04Service Kits

Three pre-built kits. No guesswork.

Each kit ships in a single carton with a printed checklist. Your engineer can complete the service without a separate parts run. Pricing indicative for L968H.

SK-B

Basic kit

500-hour service

Price on request

Engine oil filter
Fuel filter primary
Hydraulic return filter
Air filter primary
20 L API CK-4 engine oil

SK-F

Full PM kit

1000-hour service

Price on request

All Basic kit contents
Hydraulic suction filter
Transmission filter
Air filter secondary
5 L coolant concentrate
10 L transmission oil

SK-M

Mining-spec kit

1000-hour service · heavy duty

Price on request

All Full PM kit contents
Heavy-duty crankcase filter
Dust pre-cleaner element
Dust ejector valve
Premium high-VI hydraulic oil
Cab AC dust filter set

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