Everyone says it’s expensive to repair a car, but I don’t know that as long as you do these daily checks and maintenance on your vehicle, you can avoid many breakdowns and save “huge” repair bills.
| Assembly | Petroleum Product | Brand | Volume |
| Fuel tank capacity（L） | Diesel | Diesel which apply to the local temperature | 400 or 300 |
| Engine Cooling system（L） | Long-lasting antifreeze anti-corrosion coolant | Heavy duty long-lasting antifreeze anti-corrosion coolant used in four seasons | 40 |
| Engine Lubrication system（L） | Engine Oil | CH-4 Grade | 23 |
| Transmission（L） | Gear oil of heavy duty vehicles | 85W/90 GL-5 | 13 |
| Clutch（L） | Brake fluid | SAE 116/DOT3 | About 1L |
| Steering（L） | hydraulic liquid | HVN32 Low temperature hydraulic liquid | 3.5 |
| Rear-axle final drive and bush bearing（L） | Gear oil of heavy duty vehicles | GL-5EP 80W/90 or GL-5EP 85W/140 | 23 |
| Tilt-cab assembly | hydraulic liquid | HVN32 Low temperature hydraulic liquid | 0.4 |
| Item | Content | Check Period | |||||
| Every week | Every month | Every two month | Every Quarter | Every Year | |||
| Air- conditioning Unit Compressor | Coolant volume | Check coolant level | + | ||||
| Coolant leakage | Check leakage with halogen checker | + | |||||
| Check cracks and damage | + | ||||||
| Hose and pipe | Check leakage of connectors and tightening of clamps | – | |||||
| Replace desiccant and filter | – | ||||||
| Coolant | Refill with specified coolant | + | |||||
| Oil seal | Check leakage trace with white paper | + | – | ||||
| Belt | Check tightness of belt pulley and check wear | + | |||||
| Bolt | Check tightness，check and check change all of them, if necessary | + | |||||
| Evaporator condenser Electrical Apparatus Element | Evaporator Cartridge | Check dirt, clean, if necessary | + | ||||
| Wind motor | Check running condition | + | |||||
| Expansion valve | Check running condition,remove filter gauze and clean | + | |||||
| Condenser Cartridge | Check dirt, clean, if necessary | + | |||||
| Wind motor | Check running condition | + | |||||
| Connector and Plug | Check looseness of wire clamp plug | + | + | ||||
| Heat Sensitive Resistance Switch | Check action | + | |||||
| Magnetic Clutch | Check if specified requirements has been met | + | |||||
| Magnetic Clutch bearing | If it cannot turn steadily,please replace it | + | |||||
| WG I | WG II | WG III |
| Mileage per year less than 2x 10 ⁴ km of working duration not more than 600h. | Mileage per year less than 2x 10 ⁴ km and less than 6x 10 ⁴km | Mileage per year mire than 6x 10 ⁴km |
| Normal condition | Bad Condition | |||
| A | B | C | D | E |
| Good condition and long distance transport, sulfer content of fuel is less than 0.05% | Short distance transport, engineering truck, bus, etc. | Off-road, mountain and rugged road | Hot or cold region(temperature always above 30℃ or below -10°C） | Sulfer content of fuel more than 0.05% |
| Service Condition Item | WG I | WGII | WGIII |
| First-time Check | After running1000~1500km After running 30~50h | After running1500~2000km | After running1500~2000km |
| Routine Check（P） | Every 5000km Every 150h | Every 1x 10 ⁴km | Every 1.5x 10 ⁴km |
| 1st-Grade Service （WD1） | Every 1x 10 ⁴km Every 300h | Every 2x 10 ⁴km | Every 3x 10 ⁴km |
| 2st-Grade Service （WD2） | Every 2x 10 ⁴km Every 300h | Every 4x 10 ⁴km | Every 6x 10 ⁴km |
| 1st-Grade Service （WD3） | Every 4x 10 ⁴km Every 300h | Every 8x 10 ⁴km | Every 12x 10 ⁴km |
| 4st-Grade Service （WD4） | Every 8x 10 ⁴km Every 300h | Every 16x 10 ⁴km | Every 24x 10 ⁴km |
| Cab Maintenance instructions | First-time Check | Routine Check | 1st-Grade Service | 2st-Grade Service | 3st-Grade Service | 4st-Grade Service |
| Check the wiper | · | • | • | • | • | • |
| Re-tighten locking handle on drive`s cover | • | • | • | • | ||
| Re-tighten engine radiator`s cover | • | |||||
| Check oil level of cab tipping hand pump | • | • | • | |||
| Check lifting cylinder | • | • | • | • |
| Chassis Maintenance instructions | First-time Check | Routine Check | 1st-Grade Service | 2st-Grade Service | 3st-Grade Service | 4st-Grade Service |
| Check fixation and action of towing hook | • | • | • | • | • | |
| Re-tighten the bolts on cross member of the frame | • | |||||
| Tighten front and rear leaf spring bolts and brackets | • | • | • | • | ||
| Check spare tire fixing device | • | • | • | |||
| Check and adjust slide rail clearance of leaf spring | • | • | • | |||
| Check the fixation of wheel nuts | • | • | • | • | • | |
| Check the fixation of battery | • | • | • | |||
| Check the fixation of fuel tank | • | • | • |
| Electrical system Maintenance instructions | First-time Check | Routine Check | 1st-Grade Service | 2st-Grade Service | 3st-Grade Service | 4st-Grade Service |
| Check the working condition of electrical system（Instrument, lamp, wiper and air conditioner） | • | • | • | • | • | • |
| Check electrolyte level and cell voltage | • | • | • | • | • | |
| Check the fixation of battery terminal, Coat electrode with grease | • | • | • | • | • | |
| Check electric tachometer and speed accuracy | • | • | • | • | • | • |
| Brake system Maintenance instructions | First-time Check | Routine Check | 1st-Grade Service | 2st-Grade Service | 3st-Grade Service | 4st-Grade Service |
| Drain water from air reservoir | • | • | • | • | • | • |
| Check leafproofness of air pressure system（With barometer） | • | • | • | • | • | |
| Check brake lining thickness and adjust brake clearance | • | • | • | |||
| Check wheel brake | • | • | ||||
| Check vulnerability of brake pipeline and hoses | • | • | • | • | ||
| Check brake chamber | • | • | • | • | ||
| Check footbrake, handbrake and exhaust brake action（when do the trial running） | • | • | • | • | • | |
| Check ABS | • | • | • | • | • |
| Diesel Engine Maintenance Item | First-time Check | P | WD1 | WD2 | WD3 | WD4 |
| Replace diesel oil | • | CH-4 Oil changing cycle as per different conditions | ||||
| Replace fuel filter or filter element | • | When changing diesel oil | ||||
| Check and adjust valve clearance | • | • | • | • | • | |
| Replace fuel filter element | • | • | • | • | ||
| Clean fuel pre-filter or replace filter element | • | • | • | • | ||
| Check coolant volume and add it to full | • | • | • | • | • | • |
| Replace coolant | According to 4.4 | |||||
| Fasten cooling pipe clamp | • | |||||
| Fasten inlet air pipe, soft tube, and flange connection parts | • | • | • | • | • | |
| Check air filter maintenance indicating light or indicator | • | • | • | • | ||
| Clean dust cup of air filter（Excluding automatic exhausting type） | • | • | • | • | • | |
| Clean main filter element of air filter | When indicator light or indicates red | |||||
| Replace safety filter core of air filter | After cleaning main filter core for give times | |||||
| Check bearing clearance of turbocharger | • | |||||
| Check，adjust clutch stroke and wire rope conditions | • | • | • | • | • | • |
| Electric components and electronically controlled system wiring harness | Check it every 250hours | |||||
| Note：The mark means that the maintenance is needed. | ||||||
| Vehicle Maintenance instructions | First-time Check | Routine Check | 1st-Grade Service | 2st-Grade Service | 3st-Grade Service | 4st-Grade Service |
| Short distance trial running （Including braking test） | • | • | • | • | • | |
| Visual check for leakage | • | • | • | • | • | • |
| Check and tighten cargo body | • | • | • | • | • | • |
| Lubrication Maintenance instructions | First-time Check | Routine Check | 1st-Grade Service | 2st-Grade Service | 3st-Grade Service | 4st-Grade Service |
| Water pump | • | • | • | • | • | • |
| Clutch release shaft | • | • | • | • | • | • |
| Clutch pedal shaft | • | • | • | • | • | • |
| Check release bearing | • | • | • | • | • | • |
| Universal joint and intermediate Support of transmission shaft | • | • | • | • | • | • |
| Steering knuckle and front axle | • | • | • | • | • | |
| Leaf spring pin | • | At least once every four weeks | ||||
| Check leaf spring slide rail clearance of suspension | • | • | • | • | • | • |
| Shock absorber mounting | • | • | • | • | • | • |
| Gearshift lever bracket | • | • | • | • | • | |
| Brake camshaft and brake arm | • | • | • | • | • | • |
| Towing hook | • | • | • | • | • | • |
| Fifth wheel | • | • | • | • | • | • |
| Cab door hinge | • | • | • | • | ||
| Perform rust-proofing treatment of driver`s cab again according to schedule | Once every 12 months | |||||
| Service Conditions Changing interval | WG I | WG II | WG III |
| A | ——————- | 15000km | 20000km |
| B | 5000km/4 months/service time 200h | 10000km/6 months/service time 500h | ———————- |
| C | 5000km/4 months/service time 200h | 10000km | 15000km |
| D | 5000km/4 months/service time 200h | 10000km | 15000km |
| E | 5000km/4 months/service time 200h | 10000km | 15000km |
| 1. For vehicles services in various bad condition or always over-loads, interval of oil changing shall be shorten 2. Ensure two times of oil changing in whatever conditions | |||
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