Dong Feng ZB25, Operator'S Manual, Page: 57 / 112

Factory Direct Tractors
Technical Maintenance
and clean as required, replace every 50 hours in
very dusty conditions. Be sure to wipe out intake
with a damp cloth. Do not use compressed air to
blow it out, as this will push dust particles into the
engine.
5. Check coolant level and top up as required.
6. Check hydraulic steering oil and top up as
required.
7. Check fan belt and adjust as required.
8. Check gearbox oil and top up as required.
9. Check fuel level and fill before each shift.
10. Check wheel nut tension and tyre pressures,
adjust as required.
11. Inspect machine for loose or broken bolts,
tighten or replace as required.
12. Inspect hydraulic hoses and rams for leaks
and repair as required.
13. Grease loader pins, pedal shafts, tie rod ends,
king pins, drive shafts, steering stops and water
pump bearings (if grease nipple fitted).
7.2.2 30 Hour 1st service
1. Change engine oil and filter.
2. Change fuel filter and clean inline strainer.
3. Change injector pump oil.
4. Change gearbox oil and filter.
5. Change front diff and final drive oils.
6. Change hydraulic steering oil, clean strainer and
refill with new oil (where P/S tank supplied).
7. Check tappet clearance and adjust as required.
8. Check air filter and dust bowl for contaminant
and clean as required, replace every 50 hours in
very dusty conditions. Inspect inlet manifold and
hoses for leaks, repair as required.
9. Drain coolant, flush cooling system and refill
with new coolant.
10. Check wheel nut tension and tyre pressures,
adjust as required.
11. Inspect radiator core for blockage, blow out
and reinspect, clean as required.
12. Grease loader pins, pedal shafts, tie rod ends,
king pins, drive shafts, steering stops and water
pump bearings (if grease nipple fitted).
13. Inspect machine for loose or broken bolts,
tighten or replace as required.
14. Inspect engine, transmission and final drives
for oil leaks and repair as required.
15. Check brake and clutch adjustment and adjust
as required. Request technical support if unsure
how to carry out adjustments.
7.2.3 50 Hourly service
1. Change engine oil and filter.
2. Change injector pump oil.
3. Inspect radiator core for blockage, blow out and
reinspect, clean as required.
4. Check air filter and dust bowl for contaminant
and clean as required, replace every 50 hours in
very dusty conditions. Inspect inlet manifold and
hoses for leaks, repair as required.
5. Check coolant level and top up or replace as
required.
6. Check fan belt and adjust as required.
7. Check gearbox oil and top up as required.
8. Grease loader pins, pedal shafts, tie rod ends,
king pins, drive shafts, steering stops and water
pump bearings (if grease nipple fitted).
9. Check wheel nut tension and tyre pressures,
adjust as required.
10. Inspect hydraulic hoses and rams for leaks
and repair as required.
11. Inspect machine for loose or broken bolts,
tighten or replace as required.
12. Check brake and clutch adjustment and adjust
as required. Request technical support if unsure
how to carry out adjustments.
7.2.4 100 Hourly service
1. Change engine oil and filter.
2. Change fuel filter and clean inline strainer.
3. Change injector pump oil.
4. Change front diff and final drive oils.
5. Change hydraulic steering oil, clean strainer and
refill with new oil.
6. Inspect radiator core for blockage, blow out and
reinspect, clean as required.
7. Check head tension and tighten, as required, to
manufactures specifications.
8. Check air filter and dust bowl for contaminant
and clean as required, replace every 50 hours in
very dusty conditions. Inspect inlet manifold and
hoses for leaks, repair as required.
9. Drain and flush cooling system, refill with new
coolant.
10. Check fan belt and adjust as required.
11. Check gearbox oil and top up as required.
12. Check wheel nut tension and tyre pressures,
adjust as required.
13. Grease loader pins, pedal shafts, tie rod ends,
king pins, drive shafts, steering stops and water
pump bearings (if grease nipple fitted).
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